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Jefferson County Shoreline Master Program Update
Workshop with Fish Disease Experts
October 8, 2012 | 1:30 pm
Cotton Building, Port Townsend
FRAMING QUESTION: Are the performance standards in the Draft CUP Criteria enough and if
not, what needs to be added or changed?
Draft Conditional Use Permit (CUP) Criteria
D. Regulations – Finfish:
1.Reference to existing policy guidance
2.Prohibited in Discovery Bay and Hood Canal
3.General – Surveys, Monitoring and Operations Plan requirements
4.Bottom Sediments & Benthos
5.Water Quality
6.Phytoplankton
7.Chemicals
8.Food fish & Shellfish
9.Importation of New Fish Species
10.Genetic Issues
11.Escapement & Disease
12.Marine Mammals & Birds
13.Visual Quality
14.Navigation, Military Operations & Commercial Fishing
15.Human Health
16.Recreation
17.Noise
18.Odor
19.Lighting & Glare
20.Upland Shoreline Use
21.Local Services
See full text of the draft CUP provisions attached.
Jefferson County SMP Update
Proposed Conditional Use Criteria for In-water Finfish Aquaculture
The following provisions would replace provisions D.l through D.6 of the County's 10/31/11 Formal Response
to Ecology for Article 8.2 Aquaculture:
D. Regulations - Finfish
1. The culture of finfish, including net pens as defined in Article 2, may be allowed with a discretionary
conditional use approval (C(d)) subject to the policies and regulations of this Program. The following
standards and criteria apply for all in-water finfish aquaculture use/development, per the
recommendations of the 1986 Interim Guidelines (Weston/SAICL the 1986 Aquaculture Siting Study (EDAW
Inc.L the 1988 Use Conflict Study (BoyceL and the 1990 Final Programmatic Environmental Impact
Statement - Preferred Alternative (parametrix). In the event there is a conflict between these
requirements, the more restrictive shall prevail. Upon availability of any other subsequently state-
approved guidance, the more current requirements shall prevail.
2. In-waterfinfish aquaculture shall be prohibited in Discovery Bay, south of the boundary for the Protection
Island Aquatic Reserve, and in Hood Canal (south of the line from Tala Point to Foulweather Bluff, including
Dabob and Tarboo BaysL due to significant water quality issues in these water bodies.
3. General
a. All in-water finfish aquaculture proposals shall provide the County, at the applicant/operator's
expense, a site characterization survey, baseline surveys, and annual monitoring as described in the
1986 Interim Guidelines, or subsequent documents approved by the State. The applicant/operator shall
also provide the County with copies of all survey and monitoring reports submitted to WA
Departments of Ecology, Fish & Wildlife, and Natural Resources.
b. All in-water finfish aquaculture facility proposals shall submit an operations plan that includes
projections for:
I. Improvements at the site (e.g. pens, booms,
etc.) and their relationship to the natural
features (e.g. bathymetry, shorelines, etc.);
II. Number, size and configuration of
pens/structures;
III. Schedule of development and maintenance
VII. Pounds of fish on hand throughout the
VIII.
year;
Average and maximum stocking density
IX. Source of eggs, juveniles, and broodstock;
x. Type of feed used;
XI. Feeding method;
XII. Chemical use (e.g. antifouling, antibiotics,
etc.); and
Predator control measures.
IV. Species cultured;
v. Fish size at harvest;
VI. Annual production;
XIII.
9-6-12 WORKING DRAFT
Page 1 of6
4. Bottom Sediments & Benthos
a. The depth of water below the bottom of any in-water finfish aquaculture facility shall meet the
minimum required by the 1986 Interim Guidelines (Le. 20 - 60 feetL as based on facility production
capacity (Class I, II or III) and the mean current velocity at the site, measured as noted in the Guidelines
or by more current data/methodology.
b. In-water finfish aquaculture operations shall be prohibited where mean current velocity is less than 0.1
knots (5 cm/sec).
c. The pen configuration (e.g. parallel rows, compact blocks of square enclosures, or clusters of various
sized round enclosures, whether oriented in line with or perpendicular to the prevailing current
direction) of any in-water finfish aquaculture facility shall be designed and maintained to minimize the
depth and lateral extent of solids accumulation.
d. The use of un pelletized wet feed shall be prohibited to minimize undigested feed reaching the benthos
or attracting scavengers in the water column.
e. Anchoring or mooring systems shall utilize adequately-sized helical devices or other methods to
minimize disturbance to the benthos.
5. Water Quality
a. All in-water finfish aquaculture facilities shall be designed, located and operated to avoid adverse
impacts to water temperature, dissolved oxygen and nutrient levels, and other water quality
parameters. Facilities must comply with National Pollutant Discharge Elimination Standards (NPDES)
requirements.
b. All in-water finfish aquaculture facilities shall monitor water quality and net cleaning activities to
comply with State requirements (including WAC 173-201A-210L especially during periods of naturally
high water turbidity. Additional net cleaning activities shall be performed, as needed, to ensure State
water quality standards are met.
6. Phytoplankton
a. In-water finfish aquaculture facility production capacity shall be limited in nutrient sensitive areas to
protect water quality and shall not exceed 1,000,000 pounds annual production per square nautical
mile. The following shall apply for specific geographic areas:
I. In the main basin of Puget Sound (area south of the sill at Admiralty Inlet extending to the line
between Tala Point and Foulweather Bluff, including Port Townsend Bay, Kilisut Harbor, and Oak
Bay, and extending to the County's boundary midway to Whidbey IslandL annual production shall
be limited by the site characteristics in compliance with this Program.
b. Applicants shall demonstrate through field and modeling studies that the proposed fish farms will not
adversely affect existing biota.
9-6-12 WORKING DRAFT
Page 2 of6
7. Chemicals
a. Only FDA-approved chemicals shall be allowed on a case-by-case basis for anti-fouling, predator
control and other purposes. The use of tributyltin (TBT) is prohibited and all chemical use shall be
reported to the State as required.
b. When necessary, vaccination is preferred over the use of antibiotics. Only FDA-approved antibiotics
shall be used and such use shall be reported to the State as required. Operator shall take all necessary
precautions to ensure that nearby sediments and shellfish do not accumulate significant amounts of
antibiotics.
8. Food fish & Shellfish
a. All in-water finfish aquaculture facilities shall be located to avoid adverse impacts to habitats of special
significance (as defined in Article 2) and populations of food fish and shellfish as follows, as determined
on a case-by-case basis:
I. When adjacent to any wildlife refuge, sanctuary, aquatic reserve or similar area intended to protect
threatened or endangered species, locate a minimum of 300 feet in all directions from such
protected areas;
II. When water depth is less than 75 feet, locate at least 300 feet down-current and 150 feet in all
other directions from significant habitats;
III. When water depth is greater than 75 feet, locate at least 150 feet from significant habitat.
b. The County shall designate protective buffer zones around habitats of special significance in
accordance with marine area spatial planning efforts led by the State, when such guidance and
methodologies are available.
9. Importation of New Fish Species
a. All in-water finfish aquaculture facilities shall comply with existing State and federal regulations to
ensure importation of new and/or non-native species does not adversely affect existing and/or native
species.
10. Genetic Issues
a. In compliance with State and federal requirements, in-water finfish aquaculture facilities that propose
to culture species native to local waters should use stocks with the greatest genetic similarity to local
stocks.
b. When there is increased risk of interbreeding or establishment of naturalized populations of the
cultured species that would in conflict with native stocks, only sterile or mono-sexual fish shall be
allowed.
c. All in-water finfish aquaculture facilities shall locate a minimum distance from river mouths where wild
fish could be most vulnerable to genetic degradation, as determined on a case-by-case basis or by
State guidance.
9-6-12 WORKING DRAFT
Page 3 of6
11. Escapement and Disease
a. All in-water finfish aquaculture facilities shall comply with State and federal requirements to control
pests, parasites, diseases, viruses and pathogens and to prevent escapement including, but not limited
to, those for certified eggs, approved import/transport and live fish transfer protocols, escapement
prevention, reporting and recapture plans, and disease inspection and control per RCW 77.15.290,
RCW 77.115, WAC 220-76 and WAC 220-77 and other requirements as appropriate. The use of
regional broodstock is preferred.
12. Marine Mammals & Birds
a. All in-water finfish aquaculture facilities shall locate a minimum of 1,500 feet from habitats of special
significance for marine mammals and seabirds.
b. Only non-lethal techniques (e.g. anti-predator netting) shall be allowed to prevent predation by birds
and/or mammals on the cultured stocks.
13. Visual Quality
a. All in-water finfish aquaculture facilities shall conduct a Visual Impact Assessment to evaluate and
document the following siting and design variables in order to minimize visual impacts to adjacent and
surrounding uses:
I. Locate offshore from low bank shorelines rather than high bluff areas where angle of viewing
becomes more perpendicular to the plane of water making the facility more visually evident;
II. Locate offshore a minimum of 1,500 feet from ordinary high water mark, or a minimum of 2,000
feet when higher density residential development is present along the adjacent upland. The County
may require a greater distance as determined by a visual impact assessment.
III. Facilities shall be designed to maximize a horizontal profile to repeat the plane of the water surface
rather than project vertically above the water surface. Vertical height shall be the minimum
feasible, not to exceed 10 feet from the surface of the water.
IV. Facilities shall be designed so that the overall size and surface area coverage does not exceed 10%
of the normal cone of vision, dependent on the foreshortening created by the offshore distance and
the average observation height.
v. Facilities shall be designed to borrow from the form of structures and materials already in the
environment (e.g. pilings, docks, marinas) and to blend with the predominate color schemes present
(Le. blue, green, gray, neutral earth tones). The colors of white and black shall be minimized as they
have highly variable appearance in response to lighting conditions. Bright colors such as red,
yellow, and orange shall be avoided, unless required for safety purposes. The use of a variety of
materials or colors shall be limited and ordered.
VI. Facilities proposed to locate in the vicinity of existing in-water finfish aquaculture facilities shall
evaluate the aggregate impacts and cumulative effects of multiple operations in the same area.
VII. Facilities shall be designed and located so that the surface area of individual operations does not
exceed 2 acres of surface coverage and no more than one operation per square nautical mile
9-6-12 WORKING DRAFT
Page 4 of6
VIII. Land based access for parking, staging, launching, and storage associated with any in-water finfish
aquaculture facilities shall be evaluated for visual impacts and conflicts with adjacent upland uses.
14. Navigation, Military Operations and Commercial Fishing
a. When appropriate, in-water finfish aquaculture facilities shall be located close to shore and near
existing navigational impediments (Le. marinas, docks).
b. All in-water finfish aquaculture facilities shall be designed, located and operated to avoid conflict with
military operations.
c. The County shall notify, as appropriate, marinas, ports, recreational and commercial boating/fishing
organizations, and local tribes about comment opportunities during the permit review process,
especially re: proposed location of fish farm and related navigational aids.
15. Human Health
a. All in-water finfish aquaculture facilities shall be designed, located and operated to:
I. Ensure adequate water quality compatible with good husbandry practices;
II. Report any known bacteriological characteristics of fish food used;
III. Ensure proper storage of fish food to avoid alteration or degradation of feed quality; and
IV. Regularly monitor and report presence of parasites in farmed fish.
16. Recreation
a. All in-water finfish aquaculture facilities shall ensure compliance with State and federal requirements,
especially when location is proposed near underwater park facilities.
b. All in-water finfish aquaculture facilities shall be located a minimum of xxx feet from any recreational
shellfish beach, public tidelands, public access facilities (e.g. docks or boat ramps) or other areas of
extensive or established recreational use.
17. Noise
a. All in-water finfish aquaculture facilities shall be designed, located and operated to:
I. Ensure compliance with state and federal noise level limits;
II. Require mufflers and enclosures on all motorized fish farm equipment;
III. When appropriate, prefer electric motors over internal combustion engines.
b. The County may require an acoustical study, conducted at the applicant/operator's expense, to ensure
any audible impacts are identified and adequately addressed.
18. Odor
a. All in-water finfish aquaculture facilities shall be designed, located and operated to:
I. Ensure compliance with state limits regarding nuisances and waste disposal;
II. Follow best management practices including, but not limited to:
1. Daily removal and disposal of dead fish and other waste;
2. Regular cleaning of nets and apparatus;
9-6-12 WORKING DRAFT
Page 50f6
3. Storage of food in closed conta iners;
4. Walkway design and use allows spilled food to fall into the water.
III. Maximize the distance between the facility and nearby residential use/development, downwind
location preferred, to minimize impacts resulting from foul odors.
19. Lighting and Glare
a. Facilities shall comply with USCG requirements for operational and navigational lighting. The height of
the light source above the water surface shall be the minimum necessary, not to exceed 80 inches,
unless otherwise specified by State or federal requirements.
b. Facilities shall be designed so that any glare or shadows caused by the solar orientation are minimized.
c. Facilities shall utilize materials that minimize glare caused by sunlight or artificial lighting.
20. Upland Shoreline Use
a. All in-water finfish aquaculture facilities shall be designed, located and operated to minimize
incompatible uses and degradation of upland area.
21. Local Services
a. All in-water finfish aquaculture facilities shall be designed, located and operated to:
I. Provide estimates of high, average, and low volumes of waste to be produced, including
catastrophic events;
II. Provide a waste management plan to include the method and frequency of collection, storage and
disposal; and
III. Ensure compliance with local, state, federal waste disposal requirements.
b. Equipment, structures and materials shall not be discarded in the water and shall not be abandoned in
the upland.
9-6-12 WORKING DRAFT
Page 60f6
Page 10f2
Leslie Locke
From: John Austin
Sent: Thursday, October 04,2012 9:17 AM
To: Leslie Locke
Subject: FW: Kerwin info on fish health
From: Michelle McConnell
Sent: Thursday, October 04,2012 9:18:22 AM
To: Philip Morley; John Austin; Phil Johnson; David Sullivan
Cc: Carl Smith; Stacie Hoskins; Julie Shannon
Subject: Kerwin info on fish health
Auto forwarded by a Rule
Commissioners and Philip,
As I corresponded with John Kerwin to schedule the August workshop (that was postponed), he
provided some good information about the issues of net pens and fish disease. I believe I passed along
the policy document he provided but I'm not sure I forwarded his email so am providing you that text
now in preparation for Monday's workshop:
10/4/2012
Page 2 of2
Hope this is helpful,
Michelle
Michelle McConnell, Associate Planner
Long Range Planning Lead
Shoreline Master Program Update Project Manager
Watershed Stewardship Resource Center Project Manager
Jefferson County Department of Community Development
MAIL 621 Sheridan St., Port Townsend, W A 98368
DIRECT 360.379.4484 I MAIN 360.379.4450 I FAX 360.379.4473
WE B www.co.iefferson.wa.us/com mdevelopment
OFFICE OPEN: Monday - Thursday 9:00 am - 4:30 pm
MISSION: To preserve and enhance the quality of life in Jefferson County by promoting
a vibrant economy, sound communities and a healthy environment.
All e-mail sent to this address will be received by the Jefferson County e-mail system and may be subject to Public Disclosure
under Chapter 42.56 RCW and as such may be viewed by parties other than the intended recipient.
10/4/2012
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The Salmonid Disease Control Policy
of the }'isheries Co-Managers of Washington State
(Revised July 2006)
CONTENTS
1. Policy Statement arId Goals ......................................................... 2
2. Minimum Fish Health Standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3
2.1. Surveillance requirement for Regulated Pathogens... .. ... . .. . .. . .. . ... .. . .. 3
2.2. Fish health rnonitoring requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4
2.3. Hatchery sanitation requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 4
2.4. Transfer requirements. . . . .. .. .. .. . . . . . . .. .. . . . . . .. . . . . . . . . .. . . . .. . . . . . . .. . .. . . . .. 5
2.4.1. Transfer notification process.................................................... 5
2.4.2. Fish 11ealtll information required for transfer.... ~............................. 6
2.4.3. Galnete and egg traIlsfer reql.lirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 7
2.4.4. Fish transfer reql.lirements. . .. . .. ... . . . . .. . . . . .. . . . . .. . ... . . . .. . .. . .. . . .. .. . .. . .. 14
2.4.5. Carcass traIlsfer requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 7
2.4.6. Water transfer reqllirements ..................""................................ 19
2.5. Site-specific containment plans for pathogens of concern. ............... .. 20
3. Commllnications and Reporting R,equirenlents................................ ... 20
4. Technical Procedures................................................................. 21
5. Monitoring and Evalllation Component. . . . . .. . .. . .. . .. . . . . .. . . . . .. . . . . .. . .. . .. . .. 21
6. Amendment and Exemption Process.. .. . .. .. . . .. . .. . . .. .. . .. . .. . .. . . .. .. . .. . ... 21
7. R,eferences.. . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
8. A ppen di ces ............................................................................... 24
8. 1 . De fi ni t ion s. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
8.2. Species Susceptibility to R,eglllated Endemic Pathogens.................... . 30
8.3. List of Watersheds and Fish Health Management Zones.................... 31
8.4. TestingR,egimes and APPL Table.............................H............... 33
8.5. Risk Assessment Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 35
8.6. Specific Pathogen Control Strategies............. . . . . . . . .. . . . . .. . . . . . . . .. . . . . . 36
Note: Individuals reading this policy should refer to the definition section in Appendix 801
for further clarifications of terms used in the policy.
Salmonid Disease Control Policy - Revised July 2006
1. POLICY STA TEMENT AND GOALS
1.1. POIJICY STATEMENT:
It shall be the policy of the Fisheries Co-Managers of Washington State to protect free-
ranging and cultured fish populations from management activities that could cause the
importation, dissemination, and amplification of pathogens known to adversely affect
salmonids. These management activities include, but are not limited to, the transfer of
gametes, eggs, fish, carcasses, or water between watersheds.
This policy sets forth the minimum fish health standards. A Co-Manager or Co-Operator
may implement additional practices or measures at their facilities at their discretion.
Further, acknowledging that many complex fish health situations will arise, it shall be the
policy to foster open and frequent communication between Co-Managers and Co-
Operators to jointly resolve these issues without endangering the health of free-ranging
and cultllred fish populations.
1.2. POLICY GOALS:
· To prevent the importation or establishment of regulated exotic pathogens into
Washington State.
· To prevent the introduction or establishment of regulated endemic pathogens to new
watersheds within Washington State.
· To reduce the biological impact of specific pathogens known to adversely impact
salmonids.
· To minimize the amplification of pathogens that can adversely affect both free-ranging
and cultured fish populations.
· To foster open and frequent communications between Co-Managers and Co-Operators
on fish health issues.
1.3. REGULA TED P A TUOG EN LIST
Exotic Pathogens1:
· Oncorhynchus masou virus (OMV)
· All viral hemolThagic septicemia virus strains oth~r than the Pacific Northwest strain
(IV a)
Endemic Pathogens:
· Infectious hematopoetic necrosis virus (lliNV)
· Infectious pancreatic necrosis virus (IPNV)
· Pacific Northwest strain (IV a) of viral hemorrhagic septicemia virus (PNW VHSV)
· Myxobolus cerebralis
1 There are other serious fish pathogens not known to exist in Washington State that are
not included in this list because there is not a statewide surveillance program in place for
them (e.g. infectious salmon anemia virus). These pathogens may be added to this list in
the future if new information becomes available regarding their distribution and our
surveillance program is expanded to include these pathogens.
2
l.f)alnwnid Disease Control Policy - Revised July 2006
2. MINIMUM FISH HEALTH STANDARDS
It shall be the intent of all signatories of this policy to implement the following minimum fish
health standards in the categories listed below to accomplish the goal of preventing the
importation, dissemination, and amplification of pathogens known to adversely affect
salmonids.
· Surveillance requirements for regulated pathogens
· Fish health monitoring requirements for cultured fish stocks
· Hatchery sanitation requirements
· Transfer requirements for gametes apd eggs, fish, carcasses, and water
· Site-specific containment plan requirement for pathogens of concern
2.1. SIJRVEILLANCE REQUIREMENT FOR REGULATED PATHOGENS
2.1.1. Surveillance Requirement For Regulated Viral Pathogens
· Each broodstock population spawned at a Co-Manager or Co-Operator facility will be
tested annually for regulated viral pathogens at a minimum of the low testing regime (5%
assumed pathogen prevalence level (APPL)) as part of a statewide surveillance program.
The required testing regime may be increased depending on the management objectives
for that stock as well as other considerations detailed in Section 2.4.3 (Gamete and Egg
Transfer Requirements). The required tissues and fluids for surveillance testing will be
kidney, spleen, and ovarian fluid from sexually mature adults.
· In addition, each juvenile fish stock that has been reared on surlace water or a
Representative Index Group (RIG - see definitions in Appendix 8.1) will be tested for
regulated viral pathogens at the 5% APPL within eight (8) weeks prior to their transfer to
another watershed.
· In both cases, testing must be conducted by, or under the supervision of, a Fish Health
Inspector (see definitions in Appendix 8.1).
2.1.2. Surveillance Requirement For Myxobolus cerebralis (M. cerebralis)
· All water supplies containing fish will be tested for the presence of M. cerebralis at least
once every three spawning cycles if fish that are reared on that water supply are to be
transferred to another watershed. This program will involve testing the most susceptible
species on site or a susceptible sentinel species (see Appendix 8.2.1) for the presence of
M. cerebralis at a minimum of the 5% APPL every three years. The species selected for
screening must have been exposed to the water supply a minimum of 1800 degree-days
(Celsius) or six (6) months before testing (USFWS and AFS Blue Book 2004 or current
edition).
3
Salmonid Disease Control Policy - Revised July 2006
2.2. FISH HEAI.J TH MONITORING REQlJIREMENTS FOR CULTURED FISH
STOCKS
· The p.ealth of each stock of fish reared at a Co-Manager or Co-Operator facility will be
monitored on a regular basis (target monthly) by a Fish Health Inspector until the fish are
released.
· Any significant loss of fish that is suspected to be due to an infectious agent will be
promptly investigated by the facility manager and a Fish IIealth Inspector. When an
infectious agent is detected and implicated in the fish loss, preventative and therapeutic
strategies will be implemented whenever possible to reduce the impact of such disease
agents on both free-ranging and cultured fish populations.
2.3. HA TCHERY SANITATION REQUIREMENTS
2.3.1. Eggs:
· All eggs taken into a culture facility must be waterhardened in a minimum of 75 ppm
buffered iodophor solution for one hour. However, if the appropriate Co-Manager's or
Co-Operator's fish health staff demonstrates that this strategy is detrimental to egg
survival for a specific stock, an acceptable alternative will be to disinfect the eggs with
100 ppm iodophor for a minimum of ten minutes immediately after waterhardening
(Amend and Pietsch 1972; Goldes and Mead 1995; Groberg 1990).
· All eyed eggs transferred to a new facility must be disinfected in a minimum of 100 ppm
iodophor for a minimum of ten minutes upon receipt. All associated water and equipment
must be disinfected before leaving the incubation area (Amend and Pietsch 1972; Goldes
and Mead 1995; Groberg 1990).
2.3.2. Equipment, Rearing Units, and Transport Vessels:
· Equipment used to transfer gametes, eggs, or fish between Fish Health Management
Zones (Appendix 8.3) including fish transfer vessels will be sanitized before being used
for any other transport. In addition, it is recommended that all equipment and transport
vessels be sanitized after gametes, eggs, or fish are transferred to another watershed.
· Rearing units will be cleaned regularly whenever and wherever possible and the waste
disposed of in a way to prevent its discharge into State waters.
· Rearing units will be thoroughly cleaned in the following situations:
c:> Before introducing a new fish lot into a rearing unit that had previously contained a
fish lot that experienced a disease epidemic.
c> Before introducing "a fish lot that will be reared in isolation on regulated pathogen-
free water until their transfer or release.
Acceptable cleaning methods for rearing units with hard smfaces include, but are not
limited to, pressure washing followed by either using an approved disinfectant or by
4
L~almonid Disease Control Policy - Revised July 2006
leaving it dry for a minimum of 24 hours. The acceptable minimum cleaning method for
earthen ponds is to drain them and leave them dry for a minimum of 72 hours.
2.3.3. Mortality Removal:
· Mortalities will be removed from rearing units on a regular basis whenever and wherever
possible.
· Mortalities that are removed must be disposed of in a way that prevents their discharge
into State waters. Acceptable methods include, but are not limited to, burial, composting,
or rendering.
2.4. TRANSFER REQUIREMENTS
The transfer of gametes, eggs, fish, carcasses for nutrient enhancement projects, and
water in Washington State will be managed to prevent the importation of exotic
pathogens into the State and the spread and amplification of regulated endemic fish
pathogens within the State. All transfers will be required to meet the minimum
requirements in the following three areas:
· Transfer notification and approval process (Section 2.4.1).
· Fish health information exchange prior to transfer (Section 2.4.2).
· Specific transfer requirements for gametes and eggs (Section 2.4.3), fish (Section
2.4.4), carcasses (Section 2.4.5), and water (Section 2.4.6).
2.4.1. Transfer Notification Process
Transfers of gametes, eggs, fish, or carcasses into, or within, Washington State are
allowed under a permit system implemented by the Co-Managers. The permit system
consists of a formal notification process of all proposed gamete, egg, live fish, or adult
carcass transfers to all relevant Co-Managers and Co-Operators and documentation that
they meet the fish health requirements specified in this Policy.
2.4.1.1. Future Brood Document Process
All Co-Managers and Co-Operators will incorporate their planned program of gamete,
egg, and fish transfers and releases for the coming year (August through July) into the
Future Brood Document process coordinated by Washington Department of Fish and
Wildlife (WDFW) (Puget Sound Management Plan, 1985).
All proposed programs will be exchanged and reviewed by the Co-Managers' and Co-
Operators' fish health staffs for consistency with the Salmonid Disease Control Policy
of the Fisheries Co-Managers of Washington State each year. To aid in this review
process, the Co-Managers' and Co-Operators' fish health staffs will produce and
exchange a three (3) year history of regulated and reportable pathogens for all of their
facilities by watershed by March 1. {Ipon final approval, the document will become
accepted as the Current Brood Program and all transfers and releases listed within will
be approved pending results of any fish health tests required within this policy.
5
Salnwnid Disease Control Policy - Revised July 2006
2.4.1.2. In-Season Changes to the Current Brood Document for unlisted transfers or
releases:
Any transfer or release of gametes, eggs, or fish which is not listed in the Current
Brood Document requires the requesting Co-Manager or Co~Operator to notify all
relevant Co-Managers a minimum of ten (10) working days prior to the proposed
transfer or release. Changes can be made using the In-Season Brood Document Change
Form or any other form that supplies similar information. The In-Season Brood
Document Change Form can be obtained from WDFW (360/902-2684) or can be
downloaded at ht!J2://www.n\vifc.org/enhance/fh downloads.asp. If the transfer or
release is consistent with tQis policy and there are no objections from relevant Co-
Managers within ten (10) working days after notification, then the transfer or release is
approved. No transfer or release that is inconsistent with this policy's requirements
shall occur unless an exemption is acquired (Section 6.2).
2.4.2. Fish Health Information Required for Transfer
The following fish health information is required to be completed and on file with, or
received by, the Co-Manager or Co-Operator of the receiving facility a minimum of five
(5) working days prior to the actual transfer of gametes, eggs or fish:
2.4.2.1. Information requiredfor gamete or egg transfers:
· A completed copy of the parental broodstock surveillance report; and,
· A three (3) year history of regulated and reportable pathogens (see Appendix 8.1
definition for a list of reportable pathogens) found within the facility and watershed.
· Imports of gametes or eggs from outside the United States must also be
accompanied by a "Title 50" Inspection Report (Code of Federal Regulations, 50
CFR 16.13) or an Injurious Wildlife Permit (Code of Federal Regulations, 50 CFR
16.22).
2.4.2.2. Information required for fish transfers:
· All transfer requirements listed above for gamete or egg transfers (2.4.2.1); and,
· A summary of all findings of reportable pathogens, epidemics, and diagnostic cases
experienced by that lot; and,
· A risk assessment report if a reportable pathogen is detected in the lot to be
transferred for the first time in three successive spawning cycles (see Section
2.4.4.1). The risk assessment report will be produced by the Fish I-Iealth Inspectors
from both the sending and receiving facilities and provided to the Co-Managers and
Co-Operators in the receiving watershed at least five (5) working days prior to the
transfer (Appendix 8.5).
If fish have been exposed to surlace water at any time dUling their rearing, the
following additional items are also required prior to the transfer (See Section 2.4.4.2.2):
· A completed fish health monitoring report perlormed by a Fish Health Inspector no
longer than four (4) weeks prior to transfer; and,
· A copy of the completed virology test results performed on either the lot to be
transferred or a representative index group (RIG) no longer than eight (8) weeks
prior to transfer if the transfer is between watersheds.
6
Salnwnid Disease Control Policy - Revised July 2006
2.4.2.3. Responsibilities:
· It shall be the responsibility of the receiving facility Co-Manager or Co-Operator to
verify that (1) the transfer has been approved, and (2) all required fish health reports
are completed and received prior to allowing entry of gametes, eggs, or fish onto
their facility.
· A gamete, egg, or fish transfer request may be deni~d on the basis of the pathogen
history of the stock, facility, or watershed as determined by the receiving Co-
Manager or Co-Operator.
2.4.3. Gamete and Egg Transfer Requirements
This section specifies the minimum fish health requirements that must be met to transfer
gametes or eggs into, or within, the Washington State. The requirements are intended to
prevent gamete- or egg-associated transfer of regulated viral pathogens to new
watersheds within the State.
2.4.3.1. Introduction:
The specific transfer requirements will vary depending on the relative risk that a
specific lot of gametes or eggs pose of carrying a regulated viral pathogen to a new
watershed. Gametes or eggs posing a higher level of risk will have more restrictive
requirements to meet than those posing a lower risk. Factors that are considered in
determining the relative risk level that a specific lot of gametes or eggs pose include:
· Current pathogen status of the parental broodstock: Gametes or eggs from parents
that are infected with a regulated viral pathogen pose a higher risk of carrying that
pathogen than do gametes or eggs from negative parents.
· Pathogen history of the sending watershed: If regulated viral pathogens have been
known to occur in the sending watershed and not in the receiving watershed, the
risk of spreading the pathogen is higher.
· Water supply type: Eggs incubated on sutface water pose a higher risk of being
exposed to a regulated viral pathogen than do eggs incubated on regulated
pathogen-free water. This risk increases if the watershed has a positive history for
regulated viral pathogens.
· Susceptibility of the species to be transferred to regulated viral pathogens: Gametes
or eggs from species that are highly susceptible to regulated viral pathogens pose a
higher risk of carrying the virus than do those from species that are less susceptible
(Appendix 8.2.2).
The minimum requirements for a specific gamete or egg transfer will vary depending
on the risk level the transfer poses but in general will address the following areas:
· Minimum adult testing requirements of the parental broodstock (Low, Moderate, or
High Testing Regimes explained in Appendix 8.4.1).
· Water supply type (Regulated pathogen-free vs. surface water) (see definitions in
Appendix 8.1).
· The transfer of gametes or eggs prior to the completion of the parental broodstock
virus testing.
· Length of time requirements apply after a virus is detected (three spawning cycles
for IHNV and IPNV and one spawning cycle for PNW VHSV).
7
Salmonid Disease Control Policy - Revised July 2006
2.4.3.2. General Egg Transfer Requirements:
2.4.3.2.1. Minimum Egg Handling Requirements: The following requirements must be met for
all gamete and egg transfers:
· All eggs that are to be transferred must be disinfected at the waterhardening stage
and again at transfer per the sanitation procedures described in Section 2.3.1.
· Gametes or eggs can be transferred to an approved qu,,!antine facility (see
definitions in Appendix 8.1) at any time regardless of the parental virus status
provided that the necessary notifications have occurred with the relevant Co-
Managers in the area..
2.4.3.3. Transfer requirements for gametes or eggs from the following five broodstock types:
· Free-ranging sockeye, kokanee, and Columbia River broodstocks whose progeny
are to be transferred to Puget SoundIW A coastal region (Section 2.4.3.3.1).
· Broodstocks and watersheds with a negative history of regulated viral pathogens
(Section 2.4.3.3.2).
· Broodstocks with an incomplete history for regulated viral pathogens (Section
2.4.3.3).
· Broodstocks that can not be tested for regulated viruses (e.g. redd mined eggs}
(Section 2.4.3.3.4).
· Broodstock or watersheds with a positive history for either IHNV or IPNV (Section
2.4.3.3.5).
· Broodstock or watersheds with a current detection of PNW VHSV (Section
2.4.3.3.6).
2.4.3.3.1. Transfer requirements for ~ametes or eggs from all free-ranging sockeye, kokanee,
and Columbia River broodstocks whose progeny are to be transferred to ~he Puget
Sound or Washington Coastal Region:
The Co-Managers have identified the following transfer types as posing a high risk
of transferring a regulated endemic viral pathogen to another watershed regardless of
the pathogen history of either the specific broodstock or its natal watershed:
· The transfer of gametes and/or eggs from free-ranging sockeye and kokanee
broodstocks' because of their high level of susceptibility to all of the regulated
endemic viral pathogens especially IHNV (Amend 1977); and.
· The transfer of Columbia River broodstocks whose progeny are to be transferred
to. the Puget Sound or Washington Coastal Region because of the high prevalence
of IHNV in many Columbia River stocks and past detections of IPNV within the
Columbia River Region
Gametes andlor eggs from these broodstock types can be transferred to another
watershed provided all of the following minimum requirements are met:
· Broodstock are tested at the high testing regime; and,
· Eggs are incubated on regulated pathogen-free water until transfer; and,
· Viral test results are completed before the transfer occurs. If gametes or eggs are
transferred before the parental broodstock test results are completed, they must be
held in quarantine at the receiving hatchery.
8
Salnwnid Disease Control Policy - Revised July 2006
2.4.3.3.2. Transfer requirements for gametes or eggs from broodstocks and watersheds with a
negative history of regulated viral pathogens:
Gametes or eggs that are from a broodstock and watershed that have an established
negative history for regulated viral pathogens (see definition of "Negative History
for Regulated Pathogens" in Appendix 8.1) can be transferred to any watershed
within Washington State provided the requirements listed below are met:
Captive broodstocks reared on regulated pathogen-free:
· Broodstock are tested at a minimum of the low testing regime.
· Gametes or eggs can be transferred to another watershed before the test results are
done.
All free-ranging broodstocks except (1) sockeye and kokanee and (2) all Columbia
River region broodstocks whose progeny are transferred to the Puget
Sound/Washington Coast region:
· Broodstock are tested at a minimum of the moderate testing regime.
· Eggs can be incubated on surface water.
· Gametes or eggs can be transferred to another watershed before the test results are
done provided the following requirements are met: (1) they are transferred to
another watershed within the same region (Columbia River vs. Puget Sound W A
Coast), (2) the eggs are incubated in isolation at the receiving hatchery until eye
up, and (3) if parental testing is not completed by the time the eggs eye up, then
the eggs must be held in quarantine until the test results are completed. A
detection of a regulated viral pathogen will require the gametes or eggs to be
either returned to their original watershed or be destroyed.
2.4.3.3.3. Transfer requirements for .e:ametes or eggs from broodstocks with an incomplete
history for regulated endemic viral pathogens:
Gametes or eggs that are from a broodstock that has not been tested for regulated
viral pathogens for three successive years can be transferred to other watersheds
within Washington State provided the requirements below are met.
· Broodstock is tested at the high testing regime for the fIrst year if it does not have
any prior testing history and at the moderate testing regime for the following two
successive years until a negative history can be established; and,
· Eggs are incubated on regulated pathogen-free water until transfer; and,
· Viral test results are completed before transfer. If gametes or eggs are transferred
before the parental broodstock test results are completed, the resulting fertilized
eggs must be held in quarantine at the receiving hatchery.
9
Salmonid Disease Control Policy - Revised July 2006
2.4.3.3.4. Transfer requirements for eggs that are from broodstocks that can not be tested for
regulated viruses (e.g. redd mined eggs):
Such eggs can be transferred to other watersheds within Washington State provided
the following requirements below are met:
· Eggs are disinfected upon arrival to the receiving hatchery unless the attending
Fish Health Inspector determines that it would be harmful to the developing
embryos; and,
· Eggs are held in isolation if they stay within their original watershed or in
quarantine if they are transferred to another watershed; and,
· The resulting fry are tested for regulated viral pathogens at the 2% APPL.
If the test results for regulated viral pathogens are negative and the fry remain within
the Fish Health Management Zone (See Appendix 8.3) they were collected in, they
may be removed from isolation/quarantine. However, if they are transferred to a
different Fish Health Management Zone, they must stay in quarantine the entire time.
If the test results are positive for a regulated viral pathogen, the fry must be
destroyed or returned to their original watershed.
2.4.3.3.5. Transfer requirements for gametes or eggs from ail broodstocks within watersheds
that have either a current detection, or a positive history of either lliNV or IPNV:
Gametes and eggs can be transferred from broodstocks or watersheds that have a
current detection or a positive history of either lliNV or IPNV to any watershed
within Washington State provided the requirements listed below are met:
Minimum transfer requirements during the current spawning cycle (Year 0) in which
IHNV or IPNV is detected:
Gametes or eggs from any parents that test positive for lliNV or IPNV or gametes or
eggs from untested parents from a positive broodstock can not be transferred outside
of their original watershed unless they go to an approved quarantine facility.
Transfers of such eggs within a watershed will not be restricted under this policy
unless they are to be transferred above an anadromous barrier. In these cases, the
transfer will not proceed until consensus is reached between the relevant Co-
Managers.
Gametes or eggs from negative parents of the positive broodstock and from all other
broodstocks that have been exposed to surface water in the watershed can be
transferred to another watershed provided all of the following conditions are met:
· The parents are tested at the high testing regime and the results are negative
(Broodstock culling is allowed within a single days egg take if protocols have
been pre-approved by the relevant Co-Managers); and,
· Eggs are incubated on regulated pathogen-free water until transfer; and,
· Viral test results are completed before transfer occurs. If gametes or eggs are
transferred before the parental broodstock test results are completed, they must
be held in quarantine at the receiving hatchery.
10
Salmonid Disease Control Policy - Revised July 2006
Gametes and eggs from captive broodstocks (see definitions) can be transferred to
another watershed provided all of the following requirements are met:
· Captive broodstock located at the positive facility:
4> Broodstock are tested at a minimum of the moderate testing regime; and,
c> Eggs are incubated on regulated pathogen-free water until transfer; and,
c:> Viral tests are completed before transfer. If gametes or eggs are transferred
before the parental broodstock testing is completed, they must be held in
quarantine at the receiving hatchery.
· Captive broodstock located at a different facility within the positive watershed:
4> Broodstock are tested at a minimum of the low testing regime; and,
c:> Eggs are incubated on regulated pathogen-free water until transfer.
c> Gametes or eggs can be transferred to another watershed before the test results
are completed.
Minimum transfer requirements during the first spawning cycle (Year 1) following a
positive detection:
· Minimum required adult testing regimes:
C:>The specific broodstock that tested positive for lliNV or IPNV in the previous
spawn cycle (Year 0) is tested at the high testing regime;
C:>Captive broodstocks are tested at a minimum of the low testing regime;
c> All other broodstocks are tested at a minimum of the moderate testing regime;
c> All test results are negative; and,
· Eggs are incubated on regulated pathogen-free water if they are to be transferred to
a negative watershed. Eggs can be incubated on surlace water if they are to be
transferred to a watershed that has a positive history for the pathogen detected.
· Transfers prior to completion of test results:
c:> Captive broodstock: Gametes or eggs can be transferred before the test results
are completed.
c:> All other broodstocks: Viral test results must be completed before transfer. If
gametes or eggs are transferred before the parental broodstock test results are
completed, they must be held in quarantine at the receiving hatchery.
Minimum transfer requirements during the second and third spawning cycles (Years
2 & 3) following a positive detection:
· Minimum adult testing re~ime requirements:
~ All free-ranging broodstock are tested at a minimum of the moderate testing
regime (including the broodstock that tested positive in Year 0), and,
c:> All captive broodstock are tested at a minimum of the low testing regime.
· No change in requirements from Year 1 for incubation water type or In
transferring the gametes or eggs prior to completion of the test results.
11
Salmonid Disease Control Policy - Revised July 2006
2.4.3.3.6. Transfer requirements for gametes or eggs from all broodstocks within watersheds in
which PNW VHSV has been detected in the current spawning cycle:
Minimum transfer requirements during the current spawning cycle in which PNW
VHSV is detected:
Gametes or eggs from parents that test positive for PNW VHSV or from untested
parents from a positive broodstock can not be transferred outside their original
watershed unless they go to an approved quarantine facility. Transfers of such eggs
within a watershed will not be restricted under this policy unless they are to be
transferred above an anadromous barrier. In.these cases, the transfer will not proceed
until consensus is reached between the relevant Co-Managers.
Gametes or eggs from negative parents of a positive broodstock can still be
transferred to another watershed if the following requirements are met:
· Parents of the gametes or eggs to be transferred are tested at the high testing
regime (Broodstock culling is allowed within a single days egg take if protocols
have been pre-approved by the relevant Co-Managers); and,
· Eggs are incubated on regulated pathogen-free water until transfer; and,
· Viral test results are completed before transfer. If gametes or eggs are transferred
before the parental broodstock test results are completed, the resulting fertilized
eggs must be held in quarantine at the receiving hatchery.
Gametes or eggs from other broodstocks within the positive watershed can still be
transferred to another watershed provided the following requirements are met:
· Minimum required adult testing regime:
C>Captive broodstocks are tested at a minimum of the low testing regime, and,
c:> Free-ranging broodstocks are tested at a minimum of the moderate testing
regime; and,
· Eggs are incubated on regulated pathogen-free water until transfer, ~d,
· Transfers prior to completion of test results:
c::> Captive broodstock: Gametes or eggs can be transferred before the test results
are completed.
c> All other broodstocks: Viral test results must be completed before transfer. If
gametes or eggs are transferred before the parental broodstock test results are
completed, the resulting fertilized eggs must be held in quarantine at the
receiving hatchery.
Additional fish testing requirements during the spawning cycle in which PNW
VHSV is detected in an adult:
· Immediate testing of all juvenile stocks that are on surface water at the positive
facility at the 2% APPL.
· Subsequent testing of progeny from the positive broodstock at swim-up at the
2 % APPL.
12
Salmonid Disease Control Policy - Revised July 2006
Transfer requirements infuture spawning cycles:
If progeny ~om the positive broodstock and all juvenile stocks on surface water at
the site at the time of the detection are tested at the 2 % APPL and found to be
negative for PNW VHSV, then the increased transfer restrictions will end after that
spawning cycle (see definitions).
A detection of PNW VHSV in juvenile fish will require an immediate halt to
transfers out of the affected watershed of gametes, eggs and fish that have been
exposed to surface water, extension of the above restrictions for three additional
years, and the convening of an emergency meeting of the Co-Managers and Co-
Operators to determine further actions.
13
Salmonid Disease Control Policy - Revised July 2006
2.4.4. Fish Transfer Requirements
Co- Managers and Co-Operators will manage the fish health risks posed by fish transfers
by restricting their transfers between both watersheds and Fish Health Management
Zones (FHMZs). A FHMZ is a geographic area containing one or more adjacent
watersheds within which the transfer of live fish that have been reared on surface water is
controlled for fish health management purposes. See Appendix 8.3 for a complete list of
watersheds and FHMZs in Washington.
The restrictions are less if fish are transferred to a watershed within their FHMZ than if
they are transferred to a watershed outside of their FHMZ. Restrictions are based on the
following factors:
· The regulated pathogen status of the stock and the originating watershed (positive vs.
negative).
· The regulated pathogen that is detected (lliNV, IPNV, PNW VHSV, or M. cerebralis).
· The water supply type (regulated pathogen-free vs. surlace water).
· The susceptibility of the species to be transferred to regulated pathogens (Appendix
8.2).
2.4.4.1. Minimum requirements that apply to allfish transfers:
· The Fish Health Inspector from the sending facility must provide the receiving Co-
Managers and Co-Operators and their Fish Health Inspectors a summary of all findings
of reportable and regulated fish pathogens, epidemics, and diagnostic cases experienced
by this lot at least five (5) working days prior to the transfer.
· A new detection of a reportable pathogen in a stock. to be transferred to another
watershed will require both the sending and receiving Fish Health Inspectors to provide
the relevant Co-Managers and Co-Operators with a brief written assessment of the risk
posed by the transfer at least five (5) working days prior to the transfer (Appendix 8.5).
For the purposes of this policy, a "new" detection is any reportable pathogen that has
not been detected in a stock within the past three successive spawning cycles.
· Fish lots that meet any of the following criteria will not be allowed to be transferred
between watersheds: (1) Fish lots that are experiencing an epidemic at the time of the
proposed transfer, (2) Fish lots that have had a positive detection of a regulated
pathogen, and (3) Fish lots that have been reared on surlace water in one of the listed
lliNV endemic watersheds (Skagit River, Quinault River, Lake Washington Basin, and
Lake Ozette Basin).
· Fish can be transferred to an approved quarantine facility (see definitions in Appendix
8.1) at any time regardless of their pathogen status provided the necessary notifications
have occurred with the relevant Co-Managers or Co-Operators. Fish that are held in
quarantine can be returned to their original watersheds if they are not exposed to any
new regulated or reportable pathogens.
14
Salmonid Disease Control Policy - Revised July 2006
2.4.4.2. Transfer Requirements For The Following Four Transfer .Types:
· Transfers of fish that have been reared full term on regulated pathogen-free water and
in isolation (Section 2.4.4.2.1)
· Transfers offish reared on surface water within the same FHMZ (Section 2.4.4.2.2)
· Transfers offish between FHMZs (Section 2.4.4.2.3)
· Transfers offish from fresh to saltwater (Section 2.4.4.2.4)
· Transfers of fish from salt to freshwater (Section 2.4.4.2.5)
2.4.4.2.1. Transfers of fish that have been reared their entire life in isolation on regulated
pathogen-free water:
Fish reared their entire life in isolation on regulated pathogen-free water can be
transferred to any waters (either fresh or saltwater) within Washington State
provided the following conditions are met:
· All of the Gamete and Egg Transfer Requirements have been met in Section
2.4.3; and,
· All of the testing requirements for regulated pathogen-free water have been met
(see regulated pathogen-free water definition in Appendix 8.1); and,
· There has not been a detection of a regulated pathogen in the fish lot.
2.4.4.2.2. Transfers of fish that have been reared on surface water within the same FHMZ:
Fish transfers within a watershed:
Fish transfers within a watershed will not be restricted by this policy. They will be
done at the discretion of the relevant Co-Managers and Co-Operators in that
watershed.
Transfers of fish from a watershed with an established negative history for regulated
pathogens (see definitions in Appendix 8.1 ):
Fish from a watershed with an established negative history for regulated pathogens
can be transferred to any watershed within the same FHMZ provided the following
conditions are met:
· Either the lot to be transferred or a representative index group (RIG) on site is
screened and found negative for regulated viral pathogens at the 5% APPL no
longer than eight (8) weeks prior to transfer; and,
· The water supply the lot is reared on is tested for the presence of M. cerebralis at
least once every three years as per the requirement listed in 2.1.2; and,
· A fish health exam is conducted on the lot to be transferred by a fish health
inspector within four (4) weeks of the transfer.
15
Salmonid Disease Control Policy - Revised July 2006
Transfers offish from a watershed with a positive history for regulated pathogens:
Fish from a watershed with a positive history for regulated pathogens can not be
transferred to another watershed within the FHMZ for the following time periods:
· Three (3) successive spawning cycles following the detection of lliNV, IPNV,
and M. cerebralis; and,
· The current spawning cycle for detections of N. A. VHSV if it is in adult
broodstock or three (3) successive spawning cycles following its detection in
juvenile fish.
2.4.4.2.3. Transfers offish between FHMZs:
· The only fish that will be allowed to be transfen.ed between FHMZs are fish that
have been reared full term on regulated pathogen-free water and held in isolation.
Transfers can proceed without any additional requirements provided they met the
transfer requirements as eggs and they have not had any detections of regulated
pathogens.
· Fish reared on surlace water can not be transferred to a watershed in a different
FHMZ.
2.4.4.2.4. Transfers of fish from fresh to saltwater:
· Fish reared on sutface water in a watershed with a negative history of regulated
pathogens can be transferred to saltwater rearing containers without any
additional testing requirements.
· Fish reared on surlace water in a watershed with a positive history for regulated
pathogens (including progeny from positive broodstock) can be transferred to
saltwater rearing containers/netpens or released directly into saltwater provided
they are tested at the 5% APPL no longer than eight (8) weeks prior to the transfer
and found negative for the pathogen.
2.4.4.2.5. Transfers of fish from salt to freshwater:
· Captive broodstock that have not had detections of regulated pathogens can be
transferred from saltwater back to their watershed of origin.
16
Salmonid Disease Control Policy - Revised July 2006
2.4.5. Carcass Transfer Requirements
The deliberate distribution of adult salmonid carcasses into watersheds for the purpose of
nutrient enhancement can pose fish health risks if not properly managed. Disease
organisms present in salmon carcasses can be transmitted to other salmonids following
the release of these organisms into water or through their direct consumption. The Co-
Managers will manage the fish health risk posed by carcass transfers by restricting their
transfers within and between watersheds. Factors that will be taken into consideration in
determining the restrictions include:
· The pathogen status of the broodstock and the watershed (current and historical).
· The regulated pathogen of concern (IHNV, IPNV, PNW VHSV, or M. cerebralis).
· The susceptibility of the species to be transferred to a regulated pathogen (Appendix
8.2) .
2.4.5.1. Minimum requirements for broodstock used for nutrient enhancement purposes:
· The broodstock must have survived to spawn or have been killed as excess
broods tack; and,
· The broodstock must have met the required withdrawal time (e.g. as required by the
FDA or prescribing veterinarian) if it received any antibiotic injections.
· All pre-spawning mortalities (including their eggs) and adults that have not met the
required withdrawal time (e.g. as required by the FDA or prescribing veterinarian)
can not be used for nutrient enhancement purposes and must be disposed of in a way
that prevents pathogens from getting back into State waters. Acceptable disposal
methods include, but are not limited to, burial, composting, or rendering.
· A new detection of a reportable pathogen in a broodstock that is to be transferred to
another watershed will require both the sending and receiving Fish Health Inspectors
to provide the relevant Co-Managers and Co-Operators with a brief written
assessment of the risk posed by the transfer at least five (5) working days prior to the
transfer (Appendix 8.5). For the purposes of this policy, a "new" detection is any
reportable pathogen that has not been detected in a stock within the past three
successive spawning cycles.
2.4.5.2. Transfer requirements for the following four transfer types:
· Transfers of carcasses within their original watershed (Section 2.4.5.2.1)
· Transfers of carcasses between watersheds within the same FHMZ (Section
2.4.5.2.2 )
· Transfers of carcasses between FHMZs (Section 2.4.5.2.3)
· Transfers of pasteurized fish products (analogs) between watersheds (Section
2.4.5.2.4 )
17
Salmonid Disease Control Policy - Revised July 2006
2.4.5.2.1. Requirements for transferrint! carcasses within their original watershed
Adult carcasses can be transferred or planted within their original watershed
provided the following conditions are met:
· Fish Health Notification Requirement:
c> There is no fish health requirement to notify relevant Co-Managers of
transfers or plants of adults carcasses below anadromous fish barriers within
the watershed they return to provided no regulated viral pathogens are
detected in that stock.
c> Transfers or plants of carcasses above anadromous barriers within the
watershed they return to does require prior approval of all relevant co-
managers. Co-Managers and Co-Operators must submit proposed transfer
requests to relevant Co-Managers for review and approval at least ten (10)
working days prior to the transfer.
· Testing requirement: Broodstock must be tested at a minimum of the low testing
regime.
· Transfer options before the test results are completed: Transfers can proceed only
to those areas within the watershed that are below anadromous fish barriers.
· Transfer options after the test results are completed and found to be negative:
Transfers can proceed anywhere within the watershed except to areas that are
designated as a regulated pathogen-free water source. In this case, all relevant Co-
Managers must approve the carcass plants before they can proceed.
· Transfer restrictions if broodstock test positive for a regulated pathogen: All
carcass transfers must be stopped if a regulated endemic pathogen is detected in
the broodstock and not resumed until all relevant Co- Managers reach consensus on
a plan that provides adequate protection for both free-ranging and cultured fish
populations within the watershed. If the watershed is historically positive for a
regulated pathogen, a plan can be agreed to before the spawning season occurs. In
either case, if carcass planting is resumed, transfers can proceed only to those areas
within the watershed that are below anadromous fish barriers unless the area has
already been identified as being positive for the regulated pathogen.
2.4.5.2.2. Requirements for transfers of carcasses between watersheds within the same FHMZ:
Adult carcasses can be transferred between two watersheds within the same FHMZ
provided the watershed of origin has an established negative history for regulated
pathogens (see definitions in Appendix 8.1). Specific conditions that must be met
are as follows:
· Notification Requirement: All proposed transfers of adult carcasses between
watersheds must go through a Co-Manager review and approval process. Anyone
wishing to transfers carcasses must submit their proposed transfer requests to
relevant Co-Managers for review and approval at least ten (10) working days prior
to the transfer.
· Testing Requirements: Free-ranging broodstock must be tested at a minimum of
the moderate testing regime for regulated viral pathogens. Testing for M.
cerebralis must have occurred as per the requirements listed in Section 2.1.2.
18
Salmonid Disease Control Policy ~ Revised July 2006
· Transfer Restrictions: Transfers can not proceed until the test results are
completed and are negative.
· Carcass Treatment: All carcasses must be treated in a way to reduce the overall
pathogen load prior to their transfer. Acceptable methods include freezing at -200
F, heating to 860 F for three (3) hours, or eviscerating which includes removing the
kidneys and beheading the carcasses (Guttenberger et. al. 2001).
2.4.5.2.3. Requirements for transfers of carcasses between FHMZs:
The transfer of carcasses between watersheds in different FHMZs is not allowed due
to the high fish health risk.
2.4.5.2.4. Requirements for transfers of pasteurized fish products within and between
watersheds:
The use of pasteurized fish products (analogs) to enhance nutrients in a watershed
provides an alternative to the use of untreated salmon carcasses that eliminates the
fish health risks. This alternative should be considered wherever possible especially
in sensitive areas such as above anadromous barriers. Analogs products that have
been determined to be pathogen-free by the Co-Managers' fish health staffs can be
transferred to any watershed within Washington State.
2.4.6. Water Transfer Requirements
The transfer of surface water from one watershed to another can result in the introduction
of fish pathogens into the receiving watershed. Factors that affect the level of risk include
(1) the pathogen history of the sending watershed, (2) the susceptibility of the species in
the receiving watershed to the pathogens, and (3) the volume of water being transferred.
Due to the fish health risks associated with the transfer of untreated surfa<;;e water
between watersheds, the Co- Managers strongly recommend the use of regulated
pathogen-free water if a water transfer has to occur between watersheds. There are no
restrictions for the transfer of regulated pathogen-free water between watersheds.
However, if this is not possible, the following minimum requirements must be met for the
transfer of surface water between watersheds:
· The sending watershed must have an established negative history for all regulated
pathogens; and,
· The transfer can only be to another watershed within the same FHMZ (Appendix
8.3).
19
Salmonid Disease Control Policy - Revised July 2006
2.5. SITE-SPECIFIC CONTAINMENT PLANS FOR PATHOGENS OF CONCERN
All Co-Manager and Co-Operator operated facilities will be required to have a
management plan on file that describes containment actions that will be taken in the event
that a regulated exotic pathogen or a previously undescribed pathogen that is causing
significant biological loss is detected on site. Management plans will be reviewed every
five (5) years and should contain the following elements:
· Process of notifying required Co-Managers and other regulatory authorities of the
pathogen detection.
· Establishment of a pathogen containment area including containment and/or
disinfection procedures to prevent the movement of infected stock, equipment and
contaminated materials out of the areas affected by the pathogen.
· Containment of, or disinfection procedures for, the contaminated culture water from
the affected stock.
· Disposal procedures for dead eggs/fish.
· Destruction of the infected stocks, if required.
3. COMMUNICA TIONS AND REPORTING REQUIREMENTS
3.1. Presumed or confirmed identification of a regulated exotic pathogen or any new fish
pathogen that is causing significant biological loss in Washington State requires
implementation of the Site Specific Pathogen Containment Plans (Section 2.5) and the
immediate notification of the Co-Managers' and Co-Operators' fish health staffs. This
notification will be followed by an emergency meeting of the Co-Managers to discuss
further management actions required to contain the pathogen.
I 3.2. Presumed and confirmed identifications of a regulated endemic pathogen within any stock
andlor site will require notification of Co-Managers' and Co-Operators' fish health staffs, in
writing, within two (2) working days to allow for increased sampling or other control
measures at facilities within the affected area.
3.3. "New" identifications of any reportable pathogen will require written notification of the
Co-Managers' and Co-Operators' fish health staffs within five (5) working days. This
notification should highlight all planned transfers of this stock. A "new" identification is any
reportable pathogen that has not been detected in a stock within the past three (3) successive
spawning cycles.
3.4. Epidemics that are due to undetermined cause(s) will require written notification to all of
the relevant Co-Managers' and Co-Operators' fish health staffs within ten (10) working days
after the attending Fish Health Inspector is notified of the loss.
3.5. Annual meetings will occur between the Co-Managers' and Co-Operators' fish health staffs
to ensure good communications. The meetings will be hosted by WDPW on the odd years
and NWIFC on the even years.
20
J..')almonid Disease Control Policy - Revised July 2006
3.6. The Co-Managers' and Co-Operators' fish health staff must provide each other with a three
(3) year history of regulated and reportable pathogens at each of their facilities by March 1 st
of each year.
4. TECHNICAL PROCEDURES
4.1. The minimum procedures for inspection will be those described in the current edition of the
AFS FHS BlueBook (AFS-FHS 2004 or current edition) or USFWS Title 50 (Code of
Federal Regulations, 50 CFR 16.13).
4.2. Co-Managers or Co-Operators may utilize other procedures by mutual agreement when
appropriate.
5. MONITORING AND EV ALVA TION
It is the intent of the Co-Managers to annually evaluate the effectiveness of this policy in
achieving the policy goals listed in Section 1.2. The Co-Managers' fish health staffs will
facilitate this process by producing an annual report to the signatories of this SaImonid
Disease Control Policy a~ the start of each spawning cycle (July 1) tpat will contain the
following information:
· The number of juvenile and adult stocks that were tested for regulated pathogens in the
previous spawning cycle.
· The number of stocks that tested positive for a regulated pathogen by pathogen type,
location, the species and stage of the host that the detection occurred in, and whether it
was associated with disease.
· The number of regulated pathogen detections that occurred in watersheds or fish stocks
that previously had a negative history for regulated pathogens.
· The suspected sources of the infections.
· Whether the positive species were transferred as eggs or fish.
6. AMENDMENT AND EXEMPTION PROCESS
6.1. AMENDMENT PROCESS
The Co-Managers acknowledge that changes will need to be made to this document
periodically to reflect new developments in fish health. To address this need, they have
agreed to the following process for any future amendments:
All proposed changes will be initially developed and agreed to by Co-Managers' fish health
representatives. The draft changes will then be distributed in writing to all signatory Co-
Managers for a minimum of a thirty (30) day review period. All agreed upon changes will
be incorporated into a final version and re-distributed to Co-Managers for their approval
and signature. Any amendments to the policy will not be final until all of the participating
Co-Managers have signed off on the changes and received a final copy of the Salmonid
Disease Control Policy.
21
Salnwnid Disease Control Policy - Revised July 2006
6.2. EXEMPTION PROCESS
Any Co-Manager or Co-Operator requesting an exemption to the Salmonid Disease Control
Policy must notify all signatory parties in writing of their intentions and an explanation at
least ten (10) working days prior to the action. An exemption is granted if there has not
been any written fish health objections submitted by any of the signatory Co-Managers. If
there is an objection that cannot be resolved, the procedure for dispute resolution
established for the area, i.e. Puget Sound Management Plan or the Columbia River
Management Plan will be followed.
7. REFERENCES
AFS-FHS (American Fisheries Society - Fish Health Section). 2004. FHS blue book: Suggested
procedures for the detection and identification of certain finfish and shellfish pathogens. 2004
edition. AFS-FHS, Bethasda, Maryland.
Amend, D .F. and J. R. Nelson. 1977 . Variation in the susceptibility of sockeye salmon
Oncorhynchus nerka to infectious haemopoietic necrosis virus. J ourna! of Fisheries Biology
11: 567-573.
Amend, D.F. and J.P. Pietsch. 1972. Virucidal activity of two iodophors to salmonids viruses.
Journal of the Fisheries Research Board of Canada 29 :61-65.
Goldes, S .A. and S.L. Mead. 1995. Efficacy of iodophor disinfection against surface-associated
Infectious Hematopoetic Necrosis Virus. The Progressive Fish-Culturist 57:26-29.
Groberg, W.J. 1990. Water-Hardening salmonjds eggs in iodophor. Informational Report #2.
Pacific Northwest Fish Health Protection Committee.
Gutenberger, S.K., T. London, and E. Pelton. 2001. Treatments to reduce pathogen transmission
when carcasses are used for nutrient restoration. In: Proceedings of the AFS Fish Health
Section 2001 Annual Meeting, June 26-29. 2001. Victoria, British Columbia.
Lee, E.G-H, and Evelyn, T.P.T., 1994. Prevention of vertical transmission of the bacterial
kidney disease agent Renibacterium salmoninarum by broodstock injection with
erythromycin. Diseases of Aquatic Organisms 18: 1-4.
MacConnell, E., 2004. Whirling Disease of Salmonids. In AFS-FH~ (American Fisheries
Society) FHS blue book: Suggested procedures for the detection and identification of certain
finfish and shellfish pathogens. 2004 edition. AFS-FHS, Bethasda, Maryland.
Meyers, T.R. et.al., 2003. Retrospective Analysis of Antigen Prevalences of Renibacterium
salmoninarum (Rs) Detected by Enzyme- Linked lmmunosorbent Assay in Alaskan Pacific
Salmon and Trout from 1988 to 2000 and Management of R.s. in Hatchery Chinook and Coho
Salmon. J. of Aquat. Animal Health. 15:101-110.
22
Salmonid Disease Control Policy - Revised July 2006
Ossiander, F. J. and G. A. Wedemeyer, 1973. Computer program for sample size required to
determine incidence in fish populations. J. Fish. Res. Board Can., 30: 1383~ 1384.
Pacific Northwest Fish Health Protection Committee. 1989 or current edition. Model
Comprehensive Fish Health Protection Program. Section VI.
Pascho, R.I. and Mulcahy, D. 1987. Enzyme-Linked lmmunosorbent Assay for a Soluble
Antigen of Renibacterium salmoninarum, the Causative Agent of Salmonid Bacterial Kidney
Disease. Can. J. Fish. Aquat. Sci., 44: 183-191.
USfWS and AFS-PHS (U.S. Fish and Wildlife Service and American Fisheries Society- Fish
Health Section). 2004. Standard procedures for aquatic animal health inspections. In AFS-
PHS. PHS blue book: suggested procedures for the detection and identification of certain
finfish and shellfish pathogens, 2004 edition. AFS-PHS, Bethasda, Maryland.
Wolf, Ken. 1988. Fish viruses and fish viral diseases. Cornell University Press. Ithaca, New
Yark.
Title 50.1993. U.S. Code of Federal Regulations, Title 50, Chapter 1, Part 16.13. Pages 91-94.
Injurious Wildlife Permit 0 1993. u.s. Code of Federal Regulations, Injurious Wildlife Permits,
Chapter 1, Part 16.22. Pages 95-96.
23
Salnwnid Disease Control Policy - Revised July 2006
8. APPENDICES
8.1. DISEASE POLICY DEFINITIONS:
ASSUMED PATHOGEN PREVALENCE LEVEL (APPL) - The percent of any lot of fish,
either 2% or 5%, that is assumed to have a pathogen at a detectable level using tests outlined in
the AFS "Fish Health Blue Book" or a test agreed to by the Co-Managers' fish health staffs. This
level is used to determine the sample size needed to provide a 95% confidence level of including
an infected fish in the sample.
BROODSTOCK,:
· Captive Broodstock - All adult salmonids which have been reared their entire life in captivity
and on regulated pathogen-free water for the purpose of collecting gametes. This includes stocks
which are landlocked for their entire life cycle as long as their water supply meets the definition
of regulated pathogen free. For the purpose of this policy, all captive broodstock that are reared
on surlace water will be considered to be "Free Ranging Broodstock,".
- Free-Ranging Broodstock - All adult salmonids collected or captured from the waters of
Washington State, for the purpose of collecting gametes, which have spent at least part of their
life cycle free-ranging, either in salt or fresh water. Adult fish collected or captured temporarily
but released unspent are not considered broodstock.
CARCASSES - Dead adult salmonids that either survived to spawn or were killed as excess
broodstock.
CO-OPERATORS - All government agencies and entities other than the Co-Managers involved
in the rearing and transfer of salmonids in Washington State.
CO-MANAGERS - Federally recognized Treaty Indian Tribes within Washington State and the
State of Washington, Department ofFish and Wildlife (WDFW).
CONFIRMED VIRAL IDENTIFICATION - The identification of a replicating viral agent by
serum neutralization assay or other confmnatory test agreed to by the Co-Managers.
CURRENT BROOD DOCUMENT - The final version of the Future Brood Document that has
been reviewed and approved by all Co-Managers and Co-Operators (see Section 2.4.1.1). All
egg/fish transfers listed in this document will be approved pending results of their fish health
inspection.
EGG - Fertilized eggs of salmonids.
EGG DISINFECTION - The exposure of water-hardened or eyed eggs to a buffered iodophor
solution containing at least 100 ppm active iodine for not less than ten (10) minutes. The
minimum ratio of iodophor solution to fertilized eggs (volume to volume) will be one (1) part
iodophor solution to one (1) part eggs with no reuse of solution.
. EPIDEMIC - The occurrence of an infectious disease which results in an average daily mortality
of at least 0.1 % within a specific rearing unit for five (5) consecutive days.
24
Lf)almonid Disease Control Policy - Revised July 2006
FISH (LIVE) - Live salmonids from the alevin to the adult stage.
FISH HEALTH BLUE BOOK - The most recent edition of the AFS PHS blue book.: suggested
procedures for the detection and identification of certain finfish and shellfish pathogens (AFS-
PHS 2004 or current edition).
FISH HEALTH INSPECTOR - An individual who either holds or meets the requirements of one
of the following certifications:
- American Fisheries Society (AFS) - Fish Health Inspector or Fish Pathologist
- Canadian Fish Health Officer
- United States Title 50 Inspector (Code of Federal Regulations, Title 50, Chapter 1, Subchapter
B, Part 16)
FISH HEALTH MANAGEMENT ZONE (PHMZ) - A geographic area containing one or more
watersheds within which the transfer of live fish is permitted when specific fish health
requirements are met. Facilities that have regulated pathogen-free water supplies can be islands
within an FHMZ and have less restrictions on fish transfers out of watershed than their surface
water counterparts. Fish Health Management Zones are listed in Appendix 8.3.
FREE-RANGING - Fish which are free to migrate in a natural environment.
FlJTURE BROOD DOCUMENT (FBD) - A draft document consisting of all Co-Managers' and
Co-Operators' programs of proposed egg and fish transfers and releases for the coming year.
This document is coordinated by Washington Department of Fish and Wildlife .
GAMETES - Unfertilized eggs and sperm of salmonids.
INSPECTION - The collection of a statistically valid sample of fish tissues and/or fluids for
examination for regulated pathogens. This is to be perlormed by, or under the supervision of, a
Fish Health Inspector. Methods used will be those described in the "Fish Health Blue Book" or
others mutually agreed to by Co-Managers' fish health staff.
IODOPHOR. WATER-HARDENING EGGS - The exposure of recently fertilized eggs (not
more than five [5] minutes post exposure to water) to a buffered iodophor solution containing at
least 75 ppm iodine for not less than sixty (60) minutes. The minimum ratio of iodophor solution
to eggs (volume to volume) will be one (1) part iodophor solution to one (1) part eggs with no
reuse of solution.
ISOLATION - The process of keeping a group of eggs or fish physically separated from other
groups at the same facility for the purpose of preventing cross contamination with possible
pathogens. This is accomplished by incubating/rearing in separate containers with no reuse of
each others' incubation/rearing water. A group may consist of an entire lot of fish or be a smaller
unit of one lot, such as one day's spawn. Separate equipment for each group is preferable, but
reuse of equipment is acceptable if it is adequately disinfected between isolation units.
25
J..')almonid Disease Control Policy - Revised July 2006
LANDLOCKED - Fish in a system that has a barrier preventing passage of all anadromous fish
or other fish which have come into contact with anadromous fish.
LOT OF FISH - A group of fish of the same species and age that originated from the same
discrete spawning population and that have always shared a common water supply. In the case
of adult broodstock, various age groups may comprise the same "lot" provided they are of the
same species and have shared the same water supply while brood fish.
NEGATIVE HISTORY FOR REGULATED ENDEMIC PATHOGENS -
· BROODSTOCK,: A negative history is established for a specific broodstock if it has been
tested for regulated endemic viral pathogens at a minimum of the low testing regime in the
past three consecutive spawning cycles and found negative for lliNV and IPNV and tested
and found negative for PNW VHSV in the current spawning cycle.
· WATERSHED: A negative history for a watershed is established if the following regulated
pathogens have not been detected in any free-ranging or cultured stocks: lliNV, IPNV, or M.
cerebralis in the past three consecutive spawning cycles, and PNW VHSV within the current"
spawning cycle. A detection of PNW VHSV or M. cerebralis in juvenile fish will extend this
time frame to three consecutive spawning cycleso To establish a negative watershed history,
all broodstocks that are spawned at all Co-Manager or Co-Operator facilities must be
screened for regulated endemic viral pathogens at a minimum of the low testing regime
during this time. If a facility does not hold any broodstock, this requirement will be
established by testing the most susceptible species on site for regulated endemic viral
pathogens at the 5% APPL annually (see Appendix 8.2). In addition, M. cerebralis must be
screened for every three spawning cycles as per the surveillance requirements in Section
2.1.2.
PRESUMPTIVE VIRAL IDENTIFICATION - The detection of a replicating agent in cell
cultures inoculated with fish tissues or fluids. Presumptive identification is made when
cytopathic effect (CPE) is replicated in cell culture.
QU ARANTINE - Keeping a group of eggs or fish in isolation as defined above with the
following restriction: effluent from eggs or fish in quarantine will be disinfected with a residual
level of at least 2 ppm chlorine for a minimum of ten (10) Ininutes of contact time or by other
methods acceptable to relevant Co-Managers.
QUARANT.INE FACILITY - A facility which holds eggs or fish in quarantine for a specific
amount of time. All quarantine facilities must be reviewed and approved by WDPW in writing
prior to operation. Prior to approving any new facility, WDPW will provide the relevant Co-
Managers' fish health staffs five (5) working days to review and comment on the proposed plans.
REGULATED PATHOGEN-FREE WATER - Water which is free of regulated fish pathogen(s).
This includes the following:
1. Ground water or untreated surface water which has been demonstrated to be fish-free; Of,
2. Surface water containing fish which has been treated in a manner sufficient to destroy all of
the regulated pathogens; or,
26
Salnwnid Disease Control Policy - Revised July 2006
3. Untreated surface water containing fish, but only if the following criteria are met:
· All fish present in the surlace water are landlocked; and,
· A three (3) year negative history for all regulated pathogens has been established for that
water supply. To establish a negative history for regulated viral pathogens, all of the
susceptible captive broodstock on site that are being reared on the water supply must be
tested annually for these viral pathogens at the moderate testing regime (Appendix 9.4)
and found negative for three successive spawning cycles. If no susceptible broodstocks
are present, then the most susceptible juvenile stock (free-ranging or cultured) that has
been reared on this water can be substituted (Appendix 8.2). To establish a negative
history for the regulated parasite pathogen, M. cerebralis, the most susceptible species on
site or within the watershed that has received adequate exposure to show the infection
must be tested annually at the 5% APPL for three consecutive spawning cycles and be
negative. Adequate exposure means the fish have been exposed to the surface water
supply a minimum of 1800 degree days (Celsius) or six months before testing; and
· After a three year negative history has been established, subsequent testing for regulated
viral pathogens must occur annually at a minimum of the low testing regime and for M.
cerebralis testing must be at least every three spawning cycles at the 5 % APPL; and
· All stocks planted into this water supply must have been reared full term on regulated
pathogen-free water and have an established negative history for regulated pathogens per
this Salmonid Disease Control Policy's requirements.
REGlJLATED PATHOGENS - Fish pathogens that are regulateq within Washington and meet
all of the following criteria: (1) have the potential to cause significant economic and/or biological
losses, (2) are not treatable, (3) have limited range (endemic) or do not exist within Washington
(exotic), (4) a repeatable robust means for their detection is recognized, and (5) a statewide
surveillance program is in place for the pathogen. Pathogens that are considered regulated are as
follows:
Regulated Exotic Patho2ens1:
· Oncorhynchus masou virus (OMV)
· All viral hemorrhagic septicemia virus strains other than the Pacific Northwest strain (IV a)
Regulated Endemic Pathogens:
Viral- Infectious hematopoietic necrosis virus (IHNV)
Infectious pancreatic necrosis virus (IPNV)
Pacific Northwest strain (IV a) of viral hemon.hagic septicemia virus (PNW VHSV)
Parasite - Myxobolus cerebralis
1 There are other serious fish pathogens that are not known to exist in Washington State that are
not included in this list because there is not a statewide surveillance program in place for them
(e.g. Infectious Salmon Anemia Virus). These pathogens may be added to this category in the
future if new information becomes available regarding their distribution.
RELEASE - The liberation of captive fish into public waters of Washington State that results in
them being free-ranging.
27
Salmonid Disease Control Policy - Revised July 2006
RELEVANT CO-MANAGERS - WDFW and Treaty Indian Tribes that could experience fish
health impacts from gamete, egg, fish, or carcass movements within their area of concern.
REPORTABLE PATHOGENS - Fish pathogens that are of general interest and meet the
following criteria: (1) have the potential to cause significant biological, or economic loss, (2)
thought to have limited geographic range within Washington State, (3) there is limited ability to
control, and (4) an accepted detection method exists for these pathogens. Reportable pathogens
will be screened for at the discretion of the attending pathologists based on clinical signs.
Reportable pathogens include:
Viral- All replicating agents other than those listed as regulated pathogens.
Bacterial - Piscirickettsia salmonis,
Strains of Yersinia ru eke ri and Aeromonas salmonicida that are resistant to
oxytetracycline and/or Romet and strains of Flavobacterium psychrophilum that are
resistant to oxytetracycline andlor florfenicol.
Parasites - Tetracapsuloides bryosalmonae (PKX)
Ceratomyxa shasta
Nucleospora salmonis
Cryptobia sp.
REPRESENTATIVE INDEX GROUP (RIG) -- A lot of fish that is tested for regulated viral
pathogens in lieu of the lot to be transferred. Criteria for a RIG are that it must be of equal or
greater sensitivity to regulated viral pathogens than the lot that is to be transferred and it must
have been exposed to the same water supply for a minimum of two months prior to being tested
(see Appendix 8.2.2 for susceptibility table).
SANITIZE - The process of eradicating fish pathogens from equipment and transfer vessels.
Recommended procedures are outlined in Section 6 of the Pacific Northwest Fish Health
Protection Committee's Model Policy (PNFHPC 1989 or current edition).
SPAWNING CYCLE - The period of time covering spawning of all salmonids starting with
spring chinook and ending with steelhead. One cycle is identified as starting July 1 and ending
June 30 of the following year.
SURFACE WATER - All open waters containing fish that are not considered to be Regulated
Pathogen-Free as defined in this policy.
TRANSFER - Any movement of gametes, eggs, live fish, or carcasses into or within Washington
State to include any movements between hatcheries, rearing facilities, watersheds, or Fish Health
Management Zones.
WATER SUPPLY - The spring, well, stream, river, estuary, or other body of water used in the
incubation/rearing of eggs or fish.
28
.Salmonid Disease Control Policy - Revised July 2006
WATERSHED - Any body of water that meets one of the following three criteria:
(1) A geographically distinct river basin that has a separate saltwater entrance;
(2) A collection of more than one adjacent river basins that have separate saltwater entrances that
the Co-Managers have agreed to manage as one watershed. These basins are combined so that a
major basin can support a smaller basin that has little production of its own. If transfers only
occur from the major to the smaller basins, and one of the receiving basins has a detection of a
regulated or reportable pathogen, that finding will not change the pathogen history of the major
basin; or
(3) Significant tributaries within a large river basin that the Co-Managers have agreed to manage
as an independent watershed for fish health purposes. A list of these watersheds is listed in
Appendix 8.3.
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Salmonid Disease Control Policy - Revised July 2006
8.2. SPECIES SUSCEPTIBILITY TO REGULA TED ENDEMIC PA THOGENS
8.2.1. Table showing species susceptibility to M. cerebralis infection (MacConnell 2004):
Partially ResistantJRefractory Intermediate Sensitive
Grayling cutthroat trout rainbow trout
coho salmon brook trout steelhead salmon
bull trout chinook salmon sockeye salmon
lake trout Atlantic salmon kokanee salmon
chum salmon mountain whitefish
-
pink salmon
Dolly varden
8.2.2. Table comparing the relative susceptibilities of juvenile salmonids to regulated
endemic viral pathogens for the purpose of selecting a Representative Index Group
to test in lieu of the species that is to be transferred:
Refractory or low Moderate
susceptibility susceptibility High susceptibility
Species Coho salmon chum salmon sockeye salmon
pink salmon chinook salmon kokanee
steelhead salmon
resident trout
anadromous
cutthroat trout
30
Salnwnid Disease Control Policy - Revised July 2006
8.3. WATERSHEDS AND FISII HEALTH MANAGEMENT ZONE TABLE:
Fish Health Management Zone Associated smaller
Description Watersheds* watersheds**
Puget Sound tributaries north of N ooksack R.
Swinomish Slough to the Canadian border S amis"h R.
including San Juan Islands Whatcom Crk.
Skagit watershed Skagit R.
Puget Sound tributaries south of and Stillaguamish R.
including the Stillaguamish watershed Snohomish R. Tulalip Bay tributaries
down to the Lake Washington watershed
Lake Washington Lake Washington Deer Cr. (Edmonds)
tributaries
Tributaries of East Kitsap Peninsula and DuwamishlGreen
Puget Sound South of the Lake R.
Washington watershed. Puyallup R.
Chambers Crk.
Nisqually R.
Deschutes R.
Minter Crk.
Coulter Crk.
Gravers Crk.
Garst Crk.
Hood Canal and Port Gamble tributaries Skokomish R.
Finch Crk.
Dosewallips R.
Hamma Hamma R.
Quilcene R.
Strait of Juan De Fuca tributaries Dungeness R.
Salmon Crk.
Snow Crk.
Elwha R.
Hoko R.
Tributaries south of Cape Flattery down Ozette R.
to and including the Ozette watershed Sooes R.
Quillayute watershed Quillayute R.
Hoh Watershed Hoh R.
Queets and Quinault Queets R.
Quinault R. .-
Grays Harbor Humptulips R.
Chehalis R.
Willapa Bay North R.
N emah R.
Willapa R.
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Salmonid Disease Control Policy - Revised July 2006
N aselle R.
Columbia River Columbia R. main Includes all tributaries
stem up to Chief of the Columbia River
Joseph Dam (except the Yakima R.)
from the mouth up to
Chief Joseph Dam.
l.Jpper Columbia R. Above Chief Joseph
Dam
Yakima R. To confluence with the
Columbia R.
* Unless otherwise noted above, a watershed will be considered to be any geographically distinct
river basin that has a separate saltwater entrance.
** For the purpose of the Salmonid Disease Control Policy, these bodies of waters will be treated
as part of the larger watershed. If transfers only occur from the major basin, and the receiving
smaller basin has a detection of a regulated pathogen, that finding will not change the pathogen
history of the major basin.
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Salmonid Disease Control Policy - Revised July 2006
8.4. TESTING REGIl\1ES
8.4.1. Adult Testing Levels1:
· Low Testing Regime: Requires testing both the kidney/spleen tissue and ovarian fluid
from the broodstock at the 5% APPL. Samples can be taken from either males or
females on a single spawn date.
· Moderate Testing Regime: Requires testing ovarian fluid from the female portion of
the broodstock at the 2% APPL and kidney/spleen tissue from either sex at the 5%
APPL. Samples must be collected on at least two separate spawn dates that are
separated by at least one week if there is more than one spawn date.
· High Testing Regime]: Requires testing ovarian fluid from 100% of the females
whose eggs are to be transferred and kidney/spleen tissue at the 2% APPL level from
either sex. If there is a positive history of IPNV (detected within the past three
spawning cycles) in the originating watershed, then the high testing regime will
require testing kidney/spleen tissues from all of the parents (both male and female)
whose eggs are to be transferred and ovarian fluid samples at the 5% APPL.
1 Note: If milt is the only gamete that is to be transferred from a broodstock to
another watershed, then an alternative testing regime to that described above for
the parental broodstock population is to test kidney/spleen tissue from 100% of the
male parents.
33
Salnwnid Disease Control Policy - Revised July 2006
8.4.2. Sampling Table based on the Assumed Pathogen Prevalence Level (APPL)
(Ossiander and Wedemeyer 1973):
APPL = ~ APPL = ~
Lot Size SamDle Lot Size Samote Lot Size Samole Lot Size Samole
under 50 1 000/0 160 97 30 25 70 41
50 50 170 99 32 26 80 42
52 51 180 101 34 27 85 43
54 52 190 103 36 28 90 44
56 53 200 104 38 29 100 45
58 55 250 112 40 30 120 47
fo-----,.,
60 56 300 117 42 31 125 48
"-
65 59 400 125 44 32 150 49
70 62 500 130 46 33 160 50
75 65 550 132 48 34 200 51
--,
80 68 600 134 50 35 250 52
85 70 700 136 52 35 300 53
90 73 800 138 54 36 400 54
95 75 900 139 56 37 500 55
100 77 1 ,000 140 58 38 800 56
T.
120 85 1 ,500 140 60 39 1 ,000 56
125 86 2,000 145 65 40 ;:::2,000 60
140 91 1 0,000 145
145 93 ~1 00,000 150
150 95
10.---,
34
Salmonid Disease Control Policy - Revised July 2006
8.5. RISK ASSESSMENT FORMAT
A new detection of a reportable pathogen in a stock to be transferred to another
watershed requires the sending and receiving Fish Health Inspectors to provide the
relevant Co-Managers with a brief written assessment of the risk posed by the transfer.
For the purposes of this Salmonid Disease Control Policy, a "new" detection is any
reportable pathogen that has not been detected in a stock within the past three consecutive
spawning cycles.
The risk assessment should address the following two questions:
· How likely is it that the proposed transfer of gametes, fertilized eggs, live fish, or
carcasses will result in the introduction and establishment of the reportable pathogen
in the receiving watershed? and,
· What would be the consequences to cultured and free-ranging fish populations in the
receiving watershed if the pathogen did become established?
The suggested, but not required, format to follow in completing the risk assessment posed
by a proposed transfer includes a two step process:
Hazard Identification Step (The description of the reportable pathogen that could be
introduced by the proposed action.)
· Identification of the reportable pathogen that could be introduced to the receiving
watershed by the stock to be transferred.
· Impact the pathogen has had in the stock (pathogen prevalence in population,
severity, and overall mortality.
· Measures that have been implemented such as treatments to control the
infection/disease.
· What is known about the presence of the pathogen in the receiving hatchery and
watershed.
Risk Assessment Step: (The evaluation of the likelihood and consequences associated
with the introduction and establishment of a reportable pathogen from the proposed
transfer)
· Release Assessment: The likelihood that the proposed transfer will introduce or
release the reportable pathogen into the receiving watershed.
· Exposure Assessment: The likelihood that susceptible organisms/stocks in the
receiving watershed will be exposed to the reportable pathogen and of the spread or
establishment of the pathogen in the watershed.
· Consequence Assessment: Description of possible consequences of exposure to the
reportable pathogen ranging from no effect to adverse and possibly irreversible
consequences to the receiving watershed.
· Risk Estimation: Estimation of the risk that the pathogen will be released and become
established in the receiving watershed and cause negative consequences to cultured or
wild fish.
35
/..'}almonid Disease Control Policy - Revised July 2006
8.6. SPECIFIC PATHOGEN CONTROL PLANS
Specific Pathogen Control Plans (SPCPs) are strategies that have proven to be effective at
reducing the severity of serious diseases in cultured fish populations that are caused by fish
pathogens that may, or may not, have widespread distribution in Washington State. They are
intended to address the following policy goals:
· To reduce the biological impact of specific pathogens known to adversely impact
salmonids; and,
· To minimize the amplification of pathogens resulting from management activities that
can adversely affect both free-ranging and cultured fish populations.
The SPCPs are recommended to be implemented on high risk fish stocks but are not required.
The decision to implement these plans will be made by the relevant Co-Managers and Co-
Operators. As new plans are developed, they will be added to the policy.
8.6.1. Bacterial Kidney Disease Control Plan
8.6.1.1.Background: Renibacterium salmoninarum, the causative agent of bacterial kidney
disease (BKD), is known to cause significant disease, mortality, and reduced productivity
in several species of salmonids. The pathogen is especially prevalent in certain species
and stocks of fish collected, transported, and reared within facilities in the Washington
State. It is known to be vertically transmitted from the adult female to her eggs and
horizontally transmitted from fish to fish. Although various antibiotic treatments are
utilized to help control expression and mortality, many of these treatments have failed to
contain the disease. In addition, antibiotics that are used to control BKD are not currently
registered for use on fish and are only available through a specific Investigational New
Animal Drug (INAD) permit or veterinary prescription. Although this pathogen is not
regulated or reportable within the context of this policy, the following plan is strongly
recommended and endorsed by the Co-Managers of the State of Washington.
8.6.1.2.Determination of Application of Control Measures: The receiving Co-Manager or
Co-Operator working closely with their fish health staff will be responsible for
determining when to invoke the following control measures for those affected stocks.
Species that may benefit the most from the control measures include, but are not limited
to, spring Chinook and sockeye salmon.
8.6.1.3.Specific Control Plan:
· The recommended control strategy focuses on reducing levels of BKD in adult females
and screening all female parents for the soluble antigen produced by Renibacterium
salmoninarum using the Enzyme Linked Immunosorbent Assay (ELISA) (Pascho and
Mulcahy 1987).
· It is recommended that all females that are to be spawned are injected with an
appropriate erythromycin compound (Rogers et al. 2002). Injections should be within
10 - 30 days prior to spawn with 12-20 mg/kg fish weight. Additional prior injections
can be done at approximately 30 day intervals (Lee and Evelyn 1994). Known
acceptable injection sites are the anterior dorsal sinus and intraperitoneally posterior to
the pelvic fin.
36
I.~almonid Disease Control Policy -.- Revised July 2006
· At spawning, kidneys from all female parents are to be individually sampled and tested
for the soluble antigen using the approved ELISA-BKD procedure in the AFS PHS
Blue Book (AFS-FHS 2004 or current edition).
· Segregate fertilized eggs/fish based upon the optical density (OD) profiles of their
female parent (Meyers et al. 2003). Fertilized eggs/progeny from parents that exceed
one of the following two recommended criteria should not be used for yearling
programs or be transferred to another facility:
c:> Fertilized eggs/progeny from females with an 00 equal to, or greater than, 0.12; or,
~ Fertilized eggs/progeny from females with OD equal to or greater than, 5 logz OD
units above reagent blanks.
· In cases of imperiled or extremely high priority stocks, progeny from parents with ODs
higher than those mentioned above may be used for sub yearling releases within the
originating watershed or used in special yearling release situations. In those cases, the
fish stock should be reared under low stress culture conditions, monitored frequently
for BKD signs, and treated with antibiotics to minimize the impact ofBKD.
37