Juls
08-13-2007, 07:31 AM
Since the other thread is getting too long, I thought it best to start a new thread.
I have emailed all the DNR's for MN, WI, IA, and IL and have only received info from WI so far. I will post the others as they come in, if they come in.
VHS Advisory May 07.txt Rules regarding VHS:
(Copy/Pasted from a text attachement)
ADVISORY
fish health
MAY 2007
VIRAL
HEMORRHAGIC
SEPTICEMIA
Wisconsin Department of Agriculture, Trade and Consumer Protection Division of Animal Health
Report of Viral Hemorrhagic Septicemia in Wisconsin
Anyone who raises, transports, and/or fishes in Wisconsin needs to be aware of the following information
provided by the Wisconsin Department of Agriculture, Trade and Consumer Protection’s (DATCP) Division
of Animal Health. For more information, contact Dr. Myron Kebus, 608-224-4876,
myron.kebus@datcp.state.wi.us
Where has viral
hemorrhagic
septicemia been
found?
What is viral
hemorrhagic
septicemia?
What species are
susceptible?
Viral hemorrhagic septicemia has been reported for the first time in Wisconsin,
following the 2005 discovery of the disease in the Great Lakes. On May 11, the
Department of Natural Resources and Wisconsin Veterinary Diagnostic Laboratory
reported finding the disease in freshwater drum, or sheepshead, in Little Lake Butte
des Mortes, part of the Lake Winnebago system. Great Lakes waters where VHS has
been detected are:
• Lake Huron • Lake Ontario
• Lake St. Clair • St. Lawrence River
• Lake Erie
VHS is a very serious virus-caused disease of world-wide concern. Fish bleed
internally and the majority of infected fish die. While many believed for years that it
was mainly a concern for trout, the current outbreak is killing other species. This is
apparently a new strain of the virus. There is no evidence of human health risk from
eating infected fish.
45 species of fish are known to be susceptible to VHS, including these species that are
important in Wisconsin:
• Black crappie
• Bluegill
• Bluntnose minnow
• Brown bullhead
• Brown trout
• Burbot
• Channel catfish
• Chinook salmon
• Coho salmon
• Chum salmon
• Emerald shiner
• Freshwater drum
• Gizzard shad
• Grayling
• Haddock
• Herring
• Japanese flounder
• Largemouth bass
• Muskellunge
• Pike
• Pink salmon
• Pumpkinseed
• Rainbow trout
• Redhorse sucker
• Rock bass
• Round goby
• Smallmouth bass
• Turbot
• Walleye
• White bass
• White perch
• Yellow perch
• Rainbow trout
Fish illustrations ©Virgil Beck
What are the signs of
viral hemorrhagic
septicemia?
VHS requirements
for fish farmers
VHS requirements
for anglers
and boaters
Other
recommendations
for anglers
and boaters
Some fish that die from VHS show no external signs. Others show signs that include
bulging eyes, bloated abdomen, inactive or overactive behavior, and hemorrhaging in
the eyes, skin, gills, and at the base of the fins. Infected fish may also have lesions
that look like those caused by many other fish diseases, so it’s necessary to test.
Mortality is highest at low water temperatures (37-54 F).
VHSV transmits easily between fish at all ages. The virus is secreted through bodily
fluids including urine and blood. It may travel with fish or in water, and may survive
for years in fish and days in water. Surviving fish can become lifelong carriers.
If you import live fish or fish eggs to Wisconsin from any of the other seven Great
Lakes states (Michigan, Minnesota, Illinois, Indiana, Ohio, Pennsylvania, New York),
they must be accompanied by a veterinary health certificate that includes negative
VHS test results within the past year. The USDA sets standards for VHS testing.
If you export live fish or fish eggs, your fish must have tested negative for VHS
within the past year. The USDA sets standards for VHS testing.
There is currently no VHS testing requirement for moving fish or fish eggs within
Wisconsin. However, you CANNOT harvest bait fish from the Lake Winnebago
watershed, the Great Lakes, or the Mississippi River. If VHS is found in any other
Wisconsin waters, this ban will be extended statewide.
Any finding of VHS or suspected VHS must be reported to the U.S. Department of
Agriculture (608-270-4000) or the Wisconsin Department of Agriculture, Trade and
Consumer Protection (608-224-4872).
It is prohibited to move live fish, including bait, and water from the Lake Winnebago
system (see map), the Great Lakes, the Mississippi River, and those waters’
tributaries up to the first dam impassible by fish.
If you fish in these waters, you must use
minnows purchased only from Wisconsin
licensed dealers, or caught in the waters
you’re fishing.
Put your catch on ice and don’t take any
live fish away from the landing or shore,
including unused bait minnows.
Drain water from bilges, bait buckets, live
wells and other containers before leaving.
Use live minnows bought only from
registered bait dealers in Wisconsin or
caught yourself in the same water where
you are fishing.
Before launching and before leaving,
remove all visible plants and animals from
watercraft.
Biosecurity recommendations for fish farms
General guidelines
High-risk activities
Low-risk activities
Fish
Hauling vehicles
Boats
Dead fish
Eggs
Personnel
Equipment
Audits
For more information
Fish farmers need to develop best management practices (BMP) for their specific
farms, consulting with accredited veterinarians and other experts, including
Wisconsin’s fish health veterinarian at the Wisconsin Department of Agriculture, Trade
and Consumer Protection.
In general, best management practices to prevent VHS should include using equipment
and personnel dedicated to one specific site. The next best alternative may be strict,
comprehensive disinfection as a standard operating procedure. Contact with tissues and
fluids from sick and dead fish should always be viewed as high risk, so BMPs should
include practices to prevent transferring the virus via tissues and fluids.
• Introducing new fish
• Sharing gear, equipment, nets and vehicles
• Contact with birds and any other animals besides fish
• Never move fish between VHS-suspect/positive sites and sites with unknown
disease status.
• Test for VHS at least once a year.
• Maintain vehicle-specific gear, equipment and nets.
• If that isn’t possible, disinfect all gear and equipment. (see guidelines on next page)
• All vehicles should be subject to annual third-party biosecurity audits.
• Don’t move boats between VHS-suspect/positive sites and sites with unknown
disease status.
• If this isn’t possible, thoroughly disinfect boats. (see disinfection guidelines)
• Remove dead or sick fish as soon as possible.
• All surfaces that have had contact with tissues and fluids of dead or sick fish should
be subject to strict disinfection. (see disinfection guidelines)
• Don’t use gametes from individual broodstock that test confirmed positive for VHS.
• Require all your workers to perform complete disinfection procedures when arriving
at and leaving a site. (see disinfection guidelines)
• Properly clean and disinfect all equipment after each use. (see guidelines)
• Do not share equipment between sites.
• Do not use cracked or leaky equipment.
• Retire wooden equipment.
• All surfaces that have had contact with tissues and fluids of dead or sick fish should
be subject to strict disinfection. (see disinfection guidelines)
• You should conduct a biosecurity audit at least once a year, consulting with
accredited veterinarians and other experts.
• For more complete information, see chapter 4 of Best Management Practices for
Aquaculture in Wisconsin and the Great Lakes Region, a University of Wisconsin
Sea Grant Institute publication, available at:
http://aqua.wisc.edu/publications/PDFs/AquacultureBMP.pdf
Disinfection guidelines for fish farms
General guidelines
Effective
disinfectants
Egg
disinfection
Equipment
DAH 056
All farms should develop site-specific disinfection programs that address all three phases
of disinfection: cleaning, disinfection and isolation. Disinfection programs should:
• Address all current transmission and infection risks.
• .nclude quality control and assure proper implementation by including components to
ensure all employees recognize the importance of proper disinfection procedures.
• Include adequate documentation to verify consistent implementation and identify
employees responsible for implementation.
• Use cleaning agents and disinfectants only if they’re approved for use by the EPA and
USDA.
• Not include any off-label use of cleaning agents and disinfectants.
• Be consistent with product manufacturer recommendations for worker health and
safety.
• Comply with EPA regulations pertaining to the discharge of cleaning agents and
disinfectants.
• Be consistent with the guidelines established by the Wisconsin Department of
Agriculture, Trade and Consumer Protection’s Aquaculture Program, listed below.
These disinfectants are effective against VHS:
• Virkon S (1% solution)
• Sodium hypochlorite (household bleach) (100-1,000 mg/liter of water for minimum of
10 minutes)
• Iodophor (100-250 mg/liter for 10 minutes)
• Formaldehyde (1.0% for 16 hours)
• Formic acid (pH less than 4 for 24 hours);
• Sodium hydroxide (pH greater than 12 for 7 hours)
• Heat (55C or hotter for 5 minutes or longer)
• Ozone (8 mg/liter/min for 3 minutes, corresponding to Redox potential of 600750mV)
• UV radiation (120mJ/cm2)
• Sodium thiosulfate can be used to neutralize chlorine or iodine disinfectants.
Choose disinfectants based on their effectiveness in a particular situation, EPA and
USDA approval for that application, and environmental or worker safety risks.
• Avoid contaminating gametes with urine, feces, blood or other organic matter during
spawning.
• Rinse fertilized eggs thoroughly with fresh water.
• Disinfect pre-hardened eggs as soon as possible after fertilization, using a buffered
iodophor at a concentration of 100 ppm for 10 minutes.
• Take great care to separate pre-disinfection activities (dirty area) from fertilized
disinfected eggs (clean area). Don’t let any equipment or personnel cross these areas.
• Disinfect eyed eggs using iodophor solution to give 100ppm prior to hatch or
movement to another location.
• Thoroughly clean all equipment, removing all residue, before disinfecting.
• Remove debris and organic fouling with a brush and/or high pressure hose.
• Clean equipment using a detergent prior to disinfecting.
• Clean and disinfect all other equipment used in the cages before using in another cage.
• Use separate equipment for separate sites.
I have emailed all the DNR's for MN, WI, IA, and IL and have only received info from WI so far. I will post the others as they come in, if they come in.
VHS Advisory May 07.txt Rules regarding VHS:
(Copy/Pasted from a text attachement)
ADVISORY
fish health
MAY 2007
VIRAL
HEMORRHAGIC
SEPTICEMIA
Wisconsin Department of Agriculture, Trade and Consumer Protection Division of Animal Health
Report of Viral Hemorrhagic Septicemia in Wisconsin
Anyone who raises, transports, and/or fishes in Wisconsin needs to be aware of the following information
provided by the Wisconsin Department of Agriculture, Trade and Consumer Protection’s (DATCP) Division
of Animal Health. For more information, contact Dr. Myron Kebus, 608-224-4876,
myron.kebus@datcp.state.wi.us
Where has viral
hemorrhagic
septicemia been
found?
What is viral
hemorrhagic
septicemia?
What species are
susceptible?
Viral hemorrhagic septicemia has been reported for the first time in Wisconsin,
following the 2005 discovery of the disease in the Great Lakes. On May 11, the
Department of Natural Resources and Wisconsin Veterinary Diagnostic Laboratory
reported finding the disease in freshwater drum, or sheepshead, in Little Lake Butte
des Mortes, part of the Lake Winnebago system. Great Lakes waters where VHS has
been detected are:
• Lake Huron • Lake Ontario
• Lake St. Clair • St. Lawrence River
• Lake Erie
VHS is a very serious virus-caused disease of world-wide concern. Fish bleed
internally and the majority of infected fish die. While many believed for years that it
was mainly a concern for trout, the current outbreak is killing other species. This is
apparently a new strain of the virus. There is no evidence of human health risk from
eating infected fish.
45 species of fish are known to be susceptible to VHS, including these species that are
important in Wisconsin:
• Black crappie
• Bluegill
• Bluntnose minnow
• Brown bullhead
• Brown trout
• Burbot
• Channel catfish
• Chinook salmon
• Coho salmon
• Chum salmon
• Emerald shiner
• Freshwater drum
• Gizzard shad
• Grayling
• Haddock
• Herring
• Japanese flounder
• Largemouth bass
• Muskellunge
• Pike
• Pink salmon
• Pumpkinseed
• Rainbow trout
• Redhorse sucker
• Rock bass
• Round goby
• Smallmouth bass
• Turbot
• Walleye
• White bass
• White perch
• Yellow perch
• Rainbow trout
Fish illustrations ©Virgil Beck
What are the signs of
viral hemorrhagic
septicemia?
VHS requirements
for fish farmers
VHS requirements
for anglers
and boaters
Other
recommendations
for anglers
and boaters
Some fish that die from VHS show no external signs. Others show signs that include
bulging eyes, bloated abdomen, inactive or overactive behavior, and hemorrhaging in
the eyes, skin, gills, and at the base of the fins. Infected fish may also have lesions
that look like those caused by many other fish diseases, so it’s necessary to test.
Mortality is highest at low water temperatures (37-54 F).
VHSV transmits easily between fish at all ages. The virus is secreted through bodily
fluids including urine and blood. It may travel with fish or in water, and may survive
for years in fish and days in water. Surviving fish can become lifelong carriers.
If you import live fish or fish eggs to Wisconsin from any of the other seven Great
Lakes states (Michigan, Minnesota, Illinois, Indiana, Ohio, Pennsylvania, New York),
they must be accompanied by a veterinary health certificate that includes negative
VHS test results within the past year. The USDA sets standards for VHS testing.
If you export live fish or fish eggs, your fish must have tested negative for VHS
within the past year. The USDA sets standards for VHS testing.
There is currently no VHS testing requirement for moving fish or fish eggs within
Wisconsin. However, you CANNOT harvest bait fish from the Lake Winnebago
watershed, the Great Lakes, or the Mississippi River. If VHS is found in any other
Wisconsin waters, this ban will be extended statewide.
Any finding of VHS or suspected VHS must be reported to the U.S. Department of
Agriculture (608-270-4000) or the Wisconsin Department of Agriculture, Trade and
Consumer Protection (608-224-4872).
It is prohibited to move live fish, including bait, and water from the Lake Winnebago
system (see map), the Great Lakes, the Mississippi River, and those waters’
tributaries up to the first dam impassible by fish.
If you fish in these waters, you must use
minnows purchased only from Wisconsin
licensed dealers, or caught in the waters
you’re fishing.
Put your catch on ice and don’t take any
live fish away from the landing or shore,
including unused bait minnows.
Drain water from bilges, bait buckets, live
wells and other containers before leaving.
Use live minnows bought only from
registered bait dealers in Wisconsin or
caught yourself in the same water where
you are fishing.
Before launching and before leaving,
remove all visible plants and animals from
watercraft.
Biosecurity recommendations for fish farms
General guidelines
High-risk activities
Low-risk activities
Fish
Hauling vehicles
Boats
Dead fish
Eggs
Personnel
Equipment
Audits
For more information
Fish farmers need to develop best management practices (BMP) for their specific
farms, consulting with accredited veterinarians and other experts, including
Wisconsin’s fish health veterinarian at the Wisconsin Department of Agriculture, Trade
and Consumer Protection.
In general, best management practices to prevent VHS should include using equipment
and personnel dedicated to one specific site. The next best alternative may be strict,
comprehensive disinfection as a standard operating procedure. Contact with tissues and
fluids from sick and dead fish should always be viewed as high risk, so BMPs should
include practices to prevent transferring the virus via tissues and fluids.
• Introducing new fish
• Sharing gear, equipment, nets and vehicles
• Contact with birds and any other animals besides fish
• Never move fish between VHS-suspect/positive sites and sites with unknown
disease status.
• Test for VHS at least once a year.
• Maintain vehicle-specific gear, equipment and nets.
• If that isn’t possible, disinfect all gear and equipment. (see guidelines on next page)
• All vehicles should be subject to annual third-party biosecurity audits.
• Don’t move boats between VHS-suspect/positive sites and sites with unknown
disease status.
• If this isn’t possible, thoroughly disinfect boats. (see disinfection guidelines)
• Remove dead or sick fish as soon as possible.
• All surfaces that have had contact with tissues and fluids of dead or sick fish should
be subject to strict disinfection. (see disinfection guidelines)
• Don’t use gametes from individual broodstock that test confirmed positive for VHS.
• Require all your workers to perform complete disinfection procedures when arriving
at and leaving a site. (see disinfection guidelines)
• Properly clean and disinfect all equipment after each use. (see guidelines)
• Do not share equipment between sites.
• Do not use cracked or leaky equipment.
• Retire wooden equipment.
• All surfaces that have had contact with tissues and fluids of dead or sick fish should
be subject to strict disinfection. (see disinfection guidelines)
• You should conduct a biosecurity audit at least once a year, consulting with
accredited veterinarians and other experts.
• For more complete information, see chapter 4 of Best Management Practices for
Aquaculture in Wisconsin and the Great Lakes Region, a University of Wisconsin
Sea Grant Institute publication, available at:
http://aqua.wisc.edu/publications/PDFs/AquacultureBMP.pdf
Disinfection guidelines for fish farms
General guidelines
Effective
disinfectants
Egg
disinfection
Equipment
DAH 056
All farms should develop site-specific disinfection programs that address all three phases
of disinfection: cleaning, disinfection and isolation. Disinfection programs should:
• Address all current transmission and infection risks.
• .nclude quality control and assure proper implementation by including components to
ensure all employees recognize the importance of proper disinfection procedures.
• Include adequate documentation to verify consistent implementation and identify
employees responsible for implementation.
• Use cleaning agents and disinfectants only if they’re approved for use by the EPA and
USDA.
• Not include any off-label use of cleaning agents and disinfectants.
• Be consistent with product manufacturer recommendations for worker health and
safety.
• Comply with EPA regulations pertaining to the discharge of cleaning agents and
disinfectants.
• Be consistent with the guidelines established by the Wisconsin Department of
Agriculture, Trade and Consumer Protection’s Aquaculture Program, listed below.
These disinfectants are effective against VHS:
• Virkon S (1% solution)
• Sodium hypochlorite (household bleach) (100-1,000 mg/liter of water for minimum of
10 minutes)
• Iodophor (100-250 mg/liter for 10 minutes)
• Formaldehyde (1.0% for 16 hours)
• Formic acid (pH less than 4 for 24 hours);
• Sodium hydroxide (pH greater than 12 for 7 hours)
• Heat (55C or hotter for 5 minutes or longer)
• Ozone (8 mg/liter/min for 3 minutes, corresponding to Redox potential of 600750mV)
• UV radiation (120mJ/cm2)
• Sodium thiosulfate can be used to neutralize chlorine or iodine disinfectants.
Choose disinfectants based on their effectiveness in a particular situation, EPA and
USDA approval for that application, and environmental or worker safety risks.
• Avoid contaminating gametes with urine, feces, blood or other organic matter during
spawning.
• Rinse fertilized eggs thoroughly with fresh water.
• Disinfect pre-hardened eggs as soon as possible after fertilization, using a buffered
iodophor at a concentration of 100 ppm for 10 minutes.
• Take great care to separate pre-disinfection activities (dirty area) from fertilized
disinfected eggs (clean area). Don’t let any equipment or personnel cross these areas.
• Disinfect eyed eggs using iodophor solution to give 100ppm prior to hatch or
movement to another location.
• Thoroughly clean all equipment, removing all residue, before disinfecting.
• Remove debris and organic fouling with a brush and/or high pressure hose.
• Clean equipment using a detergent prior to disinfecting.
• Clean and disinfect all other equipment used in the cages before using in another cage.
• Use separate equipment for separate sites.