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 1 
 on: February 01, 2023, 10:16:55 PM 
Started by RalphH - Last post by Darko
I deal with spills every day at work in the neighbouring city to Burnaby !  Hopefully their Env Dept is able to positively trace this source to owner and throw huge fines at them and have that go to re establishing this stream !  Fish kills are not common in most spills so they get A LOT OF MEDIA ATTENTION .  Itís a frustrating job when u canít find a source and you have upside down fingerlings, urban creeks really have it bad

would you mind sharing more info on common spills, where they come from, effects ect? Would be great to know what's effecting us here locally and thanks in advance

 2 
 on: February 01, 2023, 08:11:11 PM 
Started by Fisherbob - Last post by RalphH
Excellent point, one I had not considered.  Not sure if the European strain of PVR causing all the fuss would be considered endemic yet but certainly there would be some form of immunity, thus the zero known mortalities?

how can it be proven there are zero moralities in the wild?

 3 
 on: February 01, 2023, 07:32:55 PM 
Started by Fisherbob - Last post by Dave


PRV is endemic now that's my point it doesn't matter, remove the farms the PRV is still here
Excellent point, one I had not considered.  Not sure if the European strain of PVR causing all the fuss would be considered endemic yet but certainly there would be some form of immunity, thus the zero known mortalities?

 4 
 on: February 01, 2023, 05:36:31 PM 
Started by RalphH - Last post by cammer
I deal with spills every day at work in the neighbouring city to Burnaby !  Hopefully their Env Dept is able to positively trace this source to owner and throw huge fines at them and have that go to re establishing this stream !  Fish kills are not common in most spills so they get A LOT OF MEDIA ATTENTION .  Itís a frustrating job when u canít find a source and you have upside down fingerlings, urban creeks really have it bad

 5 
 on: February 01, 2023, 05:23:25 PM 
Started by Fisherbob - Last post by wildmanyeah
Yes it matters. Contrary to what the Salmon farming industry says there is evidence that PRV transmission from farmed to wild salmon may be harmful particularly among chinook; "PRV has been associated with a different disease in Chinook salmon in which blood cells rupture, leading to kidney and liver damage".

there is midwater shrimp trawlers that kill thousand of juvenile chinook in the SOG every year. Quantifiable

PRV is endemic now that's my point it doesn't matter, remove the farms the PRV is still here

 6 
 on: February 01, 2023, 05:14:28 PM 
Started by Fisherbob - Last post by RalphH
Yes it matters. Contrary to what the Salmon farming industry says there is evidence that PRV transmission from farmed to wild salmon may be harmful particularly among chinook; "PRV has been associated with a different disease in Chinook salmon in which blood cells rupture, leading to kidney and liver damage".

 7 
 on: February 01, 2023, 04:54:17 PM 
Started by Fisherbob - Last post by wildmanyeah
Does it matter anymore, been around for 30 years and the best that any study can say is that it may cause jaundiced is farmed chinook.

farm from a smoking gun for salmon survival that some believe.

Also that's only one example of PVR there is also Native PRV to the pacific not linked to Atlantic.

I don't believe there is anything showing PRV to be causing declines and killing of pacific salmon. Also a virus that old and spread thought out the population for years means the population likely has high natural immunity to it.

I believe  DFO looked at its effects on sockeye population and found that it was not a viral agent in sockeye.

Cristy miller i believe study said it caused jaundice of the liver in farmed chinook. It does however caused deises in farmed Atlantic salmon.

 8 
 on: February 01, 2023, 01:35:50 PM 
Started by Fisherbob - Last post by RalphH
The UBC study actually has different findings than debunking claims by anti-salmon farming advocates:

here is another summary not from a Salmon farming PR mouthpiece:

https://www.sciencedaily.com/releases/2021/05/210526150216.htm

Quote
"Both our genomic and epidemiological methods independently came to the same conclusion, that salmon farms act as a source and amplifier of PRV transmission," said Dr. Gideon Mordecai, a viral ecologist and Liber Ero fellow with UBC Science and researcher with UBC Medicine, who led the study. "Because separate lines of independent evidence all point to the same answer, we're confident in our finding."

Sequencing of 86 PRV genomes helped researchers track the history of PRV emergence in British Columbia. They estimate that the lineage of PRV in the North East Pacific diverged from PRV in the Atlantic Ocean approximately 30 years ago. This suggests that the introduction of PRV to B.C. and infection of wild Pacific salmon is a relatively recent phenomenon, coincident with the growth of salmon aquaculture in the province -- not dating back to early attempts to introduce Atlantic salmon to the region, starting in 1874.
...

Our finding that PRV is transmitted between farmed and wild salmon is particularly relevant given recent field and laboratory studies showing the lineage of PRV in B.C. is likely to cause disease in both Pacific and Atlantic salmon" says Dr. Mordecai. A recent Norwegian study found that a Canadian isolate of the virus causes heart lesions in Atlantic salmon. More importantly to the Pacific ecosystem, PRV has been associated with a different disease in Chinook salmon in which blood cells rupture, leading to kidney and liver damage. These are in contrast to the DFO's assessment that PRV is not a disease agent.

from the State of Alaska Department if fisheries:

https://www.adfg.alaska.gov/static/species/disease/pdfs/fishdiseases/piscine_orthoreovirus.pdf

Quote
PRV is reported from Norway,Denmark, Ireland, Chile, Japan and the Pacific Northwest (WA, AK, BC, Canada) infecting Atlantic salmon, Pacific
salmon and trout (cutthroat, steelhead,sea-run brown). In Alaska, PRV was sequenced from three stocks of coho and one stock of Chinook and unconfirmed
in one stock of chum salmon

Troubling that other governments recognize this when ours does not.

 9 
 on: February 01, 2023, 08:01:34 AM 
Started by Fisherbob - Last post by Fisherbob
https://seawestnews.com/their-aim-is-to-spread-fear-not-facts-about-salmon-farming/

https://seawestnews.com/ubc-study-debunks-claims-by-anti-salmon-farming-activists/

 10 
 on: February 01, 2023, 07:36:14 AM 
Started by Matt - Last post by dennisK
do you have any pictures?







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