“with collaborative support from the BC Salmon Farmers Association (BCSFA.” If it quacks like a duck it’s a duck. So basically these guys are claiming the viruses have little or no harm to sockeye. ‘Guy from DFO is co researcher. This thing smells.
Aquaculture improving?..The Fish Farm Thread
- Thread starter islandboy
- Start date
You
it smells to you because it doesn’t fit your agenda. Check out Tony Farrells credentials ..do you really think he would lie?
I question anything that Marty hasanything to do with.
I think I'll have a read 1st before I make a judgement.
I would say that it is suspicious that if PRv (at least in part) causes HMSI - and HMSI affects the heart and muscles ... I can't see how that would be helpful when a fish needs sustained swimming speeds to escape predators.
In addition, there are 4 more species of Pacific salmon to test, and different life history stages/timing (ocean entrance juvies, spawning, etc.) yet to test, and that all viruses (esp. the RNA ones) mutate naturally - and often made more virulent through the open net-cage environment.
I also know this is DFO's answer to business as usual - trying to say that PRv is not a pathogen in order to circumvent testing for PRv before they transplant Atlantics into cages.
I would say that it is suspicious that if PRv (at least in part) causes HMSI - and HMSI affects the heart and muscles ... I can't see how that would be helpful when a fish needs sustained swimming speeds to escape predators.
In addition, there are 4 more species of Pacific salmon to test, and different life history stages/timing (ocean entrance juvies, spawning, etc.) yet to test, and that all viruses (esp. the RNA ones) mutate naturally - and often made more virulent through the open net-cage environment.
I also know this is DFO's answer to business as usual - trying to say that PRv is not a pathogen in order to circumvent testing for PRv before they transplant Atlantics into cages.
G
gone fishin
Guest
How about posting AGAIN the facts about Atlantic Open Net Pet Salmon Farms and their on going problem controlling Sea Lice and we all know the Sea Lice that they spread far and wide kill salmon smolts!
You can debate PRv and HSMI until the cows come homel
You can debate PRv and HSMI until the cows come homel
G
gone fishin
Guest
Transition has already begun in British Columbia—licenses have been revoked in the Broughton Archipelago and the Discovery Islands. Now it’s time for the rest of BC, including the 20 farms in the Clayoquot Sound UNESCO Biosphere Region.
Please send these government officials a letter today to put the pressure on!
Please send these government officials a letter today to put the pressure on!
Attachments
SpringFever552
Well-Known Member
Ill ask a simple question ?
Does anyone believe a native band will ask the colonial gov for a license to do anything with UNDRIP being implemented?
IMO Once all is said and done I believe it will be the middle finger and say to hell with the UN and any other government that trys to control anything they want to do..
Does anyone believe a native band will ask the colonial gov for a license to do anything with UNDRIP being implemented?
IMO Once all is said and done I believe it will be the middle finger and say to hell with the UN and any other government that trys to control anything they want to do..
SpringFever552
Well-Known Member
^^^ Reread my question
Appreciate the refocus, SF. If the "they" you mention in post #1787 instead refers to FNs (verses the feds) - you do realize that all had ground-up democratic hereditary systems before the colonists set up whatever the hell type of government we all are supposed to buy into today? and you realize the band system is a colonial construct from the Indian Act? and "informed consent" is really what we all want and say we want when we say we have a democratic system?
wildmanyeah
Crew Member
UBC study debunks claims by anti-salmon farming activists
Apocalyptic fearmongering by anti-salmon farming activists dismantled by new scientific study
By Fabian Dawson
SeaWestNews
A new scientific study has dismantled the bogus claims by anti-aquaculture activists, that the piscine reovirus (PRV) is a salmon killer and will devastate the iconic species in British Columbia.
The study, like the ones before, refutes core apocalyptic fearmongering by the activists who tell their mainly urban followers that PRV, allegedly spread from fish farms, cause diseases in wild salmon stocks.
PRV has long been present in wild salmon in Pacific Northwest waters and has been detected in healthy fish, showing that its presence does not mean disease occurs.
Despite the fact that viruses found in salmon (including PRV) are not a risk to human health or wild stocks, the anti-fish farming lobby has mobilised a campaign to oust net-pen farmers in BC, who support 6,500 jobs near rural and remote Vancouver Island, Central Coast, and Sunshine Coast communities.
The latest study by researchers at University of BC, Fisheries and Oceans Canada (DFO) and the Ministry of Agriculture, Food and Fisheries found respiratory performance of wild Pacific sockeye salmon functions normally even when infected with piscine orthoreovirus (PRV).
The findings are published in BMC Biology.
“We saw little to no effect on sockeye salmon’s respiratory fitness after PRV-infection and minimal impacts on their ability to sustain the vigorous activity needed to migrate, catch prey and avoid predators,” said Dr. Yangfan Zhang, a post-doctoral researcher in UBC’s faculty of land and food systems and the department of zoology, and the joint lead author of the study.
The nine-week study found no physiological differences between PRV-infected fish and a control group, injected with a salt solution.
“This means PRV poses a very low risk to British Columbia’s population of wild Pacific salmon,” Dr. Zhang said.
“The findings highlight that not all animal viruses cause notable harm during infection,” said joint lead author, Dr. Mark Polinski, a DFO researcher.
PRV infects most farmed Atlantic salmon and just a small proportion of wild Pacific salmon. The study used sockeye salmon to test the respiratory impacts of wild salmon because they migrate near salmon farms.
“This is the first study to show that sockeye salmon can be a carrier of PRV without untoward physiological effects to their respiratory system,” said Dr. Tony Farrell, a professor and Canada Research Chair with UBC’s faculty of land and food systems and the department of zoology, and one of the principal investigators on the study.
The research team ran their experiment on a total of 400 sockeye salmon at the DFO Pacific Biological Station in Nanaimo, BC.
One group of sockeye salmon was injected with a dose of purified PRV to induce a high-dose infection scenario, another with a saline solution, and a third group was injected with the more virulent infectious hematopoietic necrosis virus (IHNV) in a separate positive-control study.
None of the salmon died while carrying the PRV infection. But researchers noted IHNV triggered 30 per cent mortality and a temporarily reduced maintenance metabolism, although survivors were able to resolve the infection within weeks.
Researchers also measured the ability of red blood cells infected with PRV to bind oxygen, as well as the metabolic rate – or oxygen uptake – of infected salmon, to evaluate their ability to maximally use oxygen, recover from exhaustion, and function when oxygen is low.
“The experimental PRV infection of sockeye salmon shows that the virus had no substantial impact on their oxygen use during maximum exercise, or when oxygen is low,” Dr. Farrell said.
“Pacific and Atlantic salmon can resist a PRV infection without a major metabolic cost,” he said, addressing those concerned about the untested impacts of PRV on wild sockeye salmon.
The authors previously performed similar investigations with PRV-infected farmed Atlantic salmon with similar results, published in 2019.
The UBC researchers worked with scientists from the BC Ministry of Agriculture, Food and Fisheries, and Fisheries and Oceans Canada—which funded the study—with collaborative support from the BC Salmon Farmers Association (BCSFA) who did not participate in the study design, data collection, and analysis, preparation of the manuscript, or decision to publish.
In 2019, two similar studies found that the piscine reovirus (PRV) is not a salmon killer in British Columbia,
One study, published in Scientific Reports, was conducted by scientists from the Pacific Biological Station and the provincial government’s Animal Health Centre.
The other, published in Frontiers in Physiology, was conducted by scientists at the University of BC and the Pacific Biological Station.
The studies found that the strain of PRV found in B.C. fish to be benign.
Question and Answer: Piscine Reovirus (PRV)
What is PRV?
Piscine reovirus is a virus that can infect Atlantic and Pacific salmonids. Reoviruses get their name because many are respiratory and enteric orphans. They are called “orphans” because many are viruses without an associated disease.
Is PRV found in British Columbia?
Yes. Research published in 2014 suggests PRV has long been present in wild salmon in Pacific Northwest waters.
What impact does PRV have on salmon?
PRV has been detected in healthy fish in healthy populations, showing that its presence does not mean disease occurs.
But isn’t a virus a disease?
No. Not all viruses in our environment cause disease. There are millions of viruses in every drop of seawater. Viruses are carried by all living things and most never cause disease. Other reoviruses have been found for decades in wild fish and never associated with disease. In British Columbia, there is no link between the presence of PRV and any disease.
Do salmon farmers test for PRV?
Yes. BC salmon farmers provided samples for a 2014 scientific study that documents PRV in BC and Alaska salmon without associated disease. BC salmon farmers are providing samples for other scientific studies that are underway. This is being done even though Fisheries and Oceans Canada (DFO), and the Canadian Food Inspection Agency (CFIA), do not have PRV on the list of reportable diseases/pathogens.
What about the suggested link between PRV and heart and skeletal muscle inflammation (HSMI)?
That link refers only to Norwegian strains of PRV in farmed Atlantic salmon. HSMI is common in Norway, but HSMI has never been identified in any wild fish in the Pacific Northwest. Viruses with the same name often occur as different types in different parts of the world. Some types might cause disease whereas others do not. PRV is a good example.
Is there any human health risk associated with PRV?
No. Viruses found in salmon (including PRV) are not a risk to human health.
(Image of Dr. Yangfan Zhang courtesy of University of BC)
wildmanyeah
Crew Member
Physical fitness of wild Pacific sockeye salmon unaffected by PRV
SCIENCE, HEALTH & TECHNOLOGY
Jul 13, 2021 | For more information, contact Collins MainaThe respiratory performance of wild Pacific sockeye salmon functions normally even when infected with piscine orthoreovirus (PRV), according to a new study released today.
The findings by researchers at UBC, Fisheries and Oceans Canada (DFO) and the Ministry of Agriculture, Food and Fisheries are published in BMC Biology.
Dr. Yangfan Zhang
“We saw little to no effect on sockeye salmon’s respiratory fitness after PRV-infection and minimal impacts on their ability to sustain the vigorous activity needed to migrate, catch prey and avoid predators,” said Dr. Yangfan Zhang, a post-doctoral researcher in UBC’s faculty of land and food systems and the department of zoology, and the joint lead author of the study.
The nine-week study found no physiological differences between PRV-infected fish and a control group, injected with a salt solution.
“This means PRV poses a very low risk to British Columbia’s population of wild Pacific salmon,” Dr. Zhang says.
“The findings highlight that not all animal viruses cause notable harm during infection,” says joint lead author, Dr. Mark Polinski, a DFO researcher.
PRV infects most farmed Atlantic salmon and just a small proportion of wild Pacific salmon. The study used sockeye salmon to test the respiratory impacts of wild salmon because they migrate near salmon farms.
“This is the first study to show that sockeye salmon can be a carrier of PRV without untoward physiological effects to their respiratory system,” says Dr. Tony Farrell, a professor and Canada Research Chair with UBC’s faculty of land and food systems and the department of zoology, and one of the principal investigators on the study.
Dr. Tony Farrell
The research team ran their experiment on a total of 400 sockeye salmon at the DFO Pacific Biological Station in Nanaimo, BC.
One group of sockeye salmon was injected with a dose of purified PRV to induce a high-dose infection scenario, another with a saline solution, and a third group was injected with the more virulent infectious hematopoietic necrosis virus (IHNV) in a separate positive-control study.
None of the salmon died while carrying the PRV infection. But researchers noted IHNV triggered 30 per cent mortality and a temporarily reduced maintenance metabolism, although survivors were able to resolve the infection within weeks.
Researchers also measured the ability of red blood cells infected with PRV to bind oxygen, as well as the metabolic rate—or oxygen uptake—of infected salmon, to evaluate their ability to maximally use oxygen, recover from exhaustion, and function when oxygen is low.
“The experimental PRV infection of sockeye salmon shows that the virus had no substantial impact on their oxygen use during maximum exercise, or when oxygen is low,” Dr. Farrell says.
“Pacific and Atlantic salmon can resist a PRV infection without a major metabolic cost,” he says, addressing those concerned about the untested impacts of PRV on wild sockeye salmon.
The authors previously performed similar investigations with PRV-infected farmed Atlantic salmon with similar results, published in 2019.
The UBC researchers worked with scientists from the BC Ministry of Agriculture, Food and Fisheries, and Fisheries and Oceans Canada—which funded the study—with collaborative support from the BC Salmon Farmers Association (BCSFA) who did not participate in the study design, data collection, and analysis, preparation of the manuscript, or decision to publish.
Read the study on BMC Biology.
So - other than importing infected eggs (again) - how does a FW Atlantic salmon hatchery that feeds the net-cage industry end up with ISA:
vocm.com
Testing Underway After Grieg Identifies Suspect Case of Infectious Salmon Anemia in Marystown
A presumptive positive case of Infectious Salmon Anemia (ISA) in farmed fish in Marystown was discovered as pa...
vocm.com
wildmanyeah
Crew Member
Lobster fishermen oppose plans to build land-based salmon farm in Yarmouth County
Social Sharing
Boreal Salmon Inc. looking to build facility on Chebogue Point, south of Yarmouth
Emma Smith, Phlis McGregor · CBC News · Posted: Jul 15, 2021 1:43 PM AT | Last Updated: 1 hour ago
Roy White and Bernie Berry say they worry the proposed salmon farm could damage wetland along the coast of southwest Nova Scotia. They want local leaders to reject the project. (Phlis McGregor/CBC)
Two southwest Nova Scotia lobster fishermen say an aquaculture company's proposal to build a land-based salmon farm south of Yarmouth, N.S., could threaten the region's coastal environment and economy.
They want the Municipality of the District of Yarmouth to reject an application by Boreal Salmon Inc. to build a facility on wetland in Chebogue Point.
The New Brunswick-based company, backed by Chilean investors, has already bought about 22 hectares in the area and a public meeting about their proposed project is scheduled for July 20.
"This is simply not the right place," Bernie Berry told CBC Radio's Information Morning during an interview near the site this week.
"I'm not sure if there is a right place for a land-based, open farm. There's just too many questions, unanswered questions for the small economic impact we believe this could create."
In an initial application to the municipality, Boreal Salmon Inc. proposes building the facility on and around a strip of land between Big Pond and the ocean. (Municipality of the District of Yarmouth website)
Land-based fish farms grow fish in tanks on land and are different from open-net farms, which are set up in the water.
According to an application to the municipality, Boreal Salmon's initial plan is to use a "flow-through system" that would pipe seawater into the tanks, then filter the water that's used before it's returned to the sea.
Berry, a member of the Coldwater Lobster Association, said he worries about substances ending up in the ocean and harming local industries, such as lobster fishing, clamming and tourism.
Information Morning - NS14:06Some people in Yarmouth County are concerned about fish plant plans
Chilean aquaculture developers have their sights set on building a land-based fish farm at Chebogue Point. We hear why those plans aren't sitting well with some people in the community. 14:06
Company proposes building dozens of tanks
Boreal Salmon's first stage would see the construction of about 40 large tanks and 16 smaller tanks near the shore, on a piece of land around and between a pond and the ocean.The company's application notes that by the second stage, the facility would produce up to 5,500 metric tonnes a year of Atlantic salmon and/or sea trout, which is a maximum of about 1.5 million fish. The project would require up to $60 million to go ahead.
Municipal council would also need to rezone the area and amend its planning strategy to allow for this kind of open-flow facility that draws in water from the ocean and returns it. Staff have already recommended that the changes be made, according to a municipal report about the company's application.
White says the wetland that Boreal Salmon Inc. has purchased is rich with wildlife, including eastern painted turtles, American eels, deer and ducks. (Phlis McGregor/CBC)
CBC News reached out to Boreal Salmon but the company declined to comment at this time.
The proposed site sits near a residential area and can be seen from the popular Cape Forchu lighthouse, which is located just down the coast.
"It's awful disheartening to see ... our coastal communities getting smaller all the time," said lobster fisherman Roy White. "It's getting a little bit too industrial and money isn't everything, and I don't think it's a good thing for Yarmouth at all."
White, who has lived in the area all of his life, said he felt sick to his stomach after thinking of the space being overtaken by a fish farm.
"It's a wetland and to fill this in is going to be terrible to the landscape and everything," he said.
There has been opposition to other fish farms in Nova Scotia in the past. Last year, Norwegian-based Cermaq abandoned its plans to expand in the province after it couldn't get enough support to set up 15 to 20 open-net farms in several coastal communities.
Several signs opposing the company's proposal have gone up in the Chebogue Point area. (Phlis McGregor/CBC)
Signs have started going up in the Chebogue Point area from residents who oppose Boreal Salmon's proposed project and a protest was planned for Wednesday morning.
Berry said many residents are upset that they only learned of the company's application about two weeks ago.
The deputy warden for the area said the company submitted its application in May and it was reviewed by planning staff in the middle of June.
White is a commercial lobster fisherman who has lived on Chebogue Point his entire life. (Phlis McGregor/CBC)
"There's certainly time, you know, for folks to be involved in the process, both proponents and detractors of any potential development, and we're certainly wanting to hear from everybody," said Trevor Cunningham, who is also chair of the planning advisory committee.
After the public meeting on July 20 the issue will come before the planning advisory committee on July 26, which will either recommend or not recommend that council take a look at it.
"There is a requirement for a development agreement signed by any company looking at this type of activity and that certainly mitigates environmental harm, unsightliness, those types of things," Cunningham said.
- VIDEO
Salmon farming giant Cermaq abandons controversial Nova Scotia expansion - Amid opposition to N.S. salmon farms, minister touts benefits of aquaculture industry
But Berry has made up his mind. He doesn't want to see any kind of fish farming in Yarmouth County.
"I realize that rural municipalities do need industry but this is simply the wrong type of industry," he said.
OldBlackDog
Well-Known Member
And the winner is:
Which brings us back to New Zealand. The idea of using native B.C. salmon, farmed in an open ocean on the other side of the world, might sound highly counterintuitive to many, especially when you add up all the carbon miles accumulated along the way.
But this isn’t the vilified Atlantic farmed salmon that might or might not be having a devastating impact on local wild stocks in B.C. – depending on which study you read and believe.
This is Big Glory Bay king salmon, raised in deep waters and fast-running tidal bays around Rakiura, also known as Stewart Island, 30 kilometres from the southern tip of New Zealand’s south island.
New Zealand’s remote salmon farms, which include the famed Ora King salmon from Marlborough Sounds, have achieved Best Aquaculture Practices certification from the Global Aquaculture Alliance. And they were the first open-net ocean-farmed salmon farms to achieve the green “best choice” rating from Monterey Bay Aquarium’s Seafood Watch Program.
www.theglobeandmail.com
Which brings us back to New Zealand. The idea of using native B.C. salmon, farmed in an open ocean on the other side of the world, might sound highly counterintuitive to many, especially when you add up all the carbon miles accumulated along the way.
But this isn’t the vilified Atlantic farmed salmon that might or might not be having a devastating impact on local wild stocks in B.C. – depending on which study you read and believe.
This is Big Glory Bay king salmon, raised in deep waters and fast-running tidal bays around Rakiura, also known as Stewart Island, 30 kilometres from the southern tip of New Zealand’s south island.
New Zealand’s remote salmon farms, which include the famed Ora King salmon from Marlborough Sounds, have achieved Best Aquaculture Practices certification from the Global Aquaculture Alliance. And they were the first open-net ocean-farmed salmon farms to achieve the green “best choice” rating from Monterey Bay Aquarium’s Seafood Watch Program.
B.C. restaurants remove wild salmon from their menus as a political statement about over-fishing
As wild salmon stocks collapse, B.C. restaurateurs remove the beleaguered fish species from their menus to help promote sustainability
www.theglobeandmail.com
Last edited:
Mowi Farming Canada East hit with €15 million loss in Q2
The salmon giant said it was mainly related to harvesting out ISA fish in Newfoundland. Mowi posted its Q2 results on Tuesday morning. Operational EBIT for the group was EUR 137 million, up from EUR 99 million in Q2 2020. Blended Farming cost per kg harvested was EUR 4.50 (EUR/kg 4.47 in Q2...
salmonbusiness.com
Whole in the Water
Well-Known Member
LOL Fabian Dawson - we can trust this industry mouthpiece to be as objective as CEO of a tobacco company!
wildmanyeah
Crew Member
B.C. restaurants remove wild salmon from their menus as a political statement about over-fishing
As wild salmon stocks collapse, B.C. restaurateurs remove the beleaguered fish species from their menus to help promote sustainability
www.theglobeandmail.com
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