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Sea Lice Research


2008, August - A Brief Response to the January 2008 Report "Overview of Sea Lice Issues and Risks to Farmed and Wild Salmon" prepared for Cermaq.
Stan Proboszcz and Dr. Craig Orr from Watershed Watch Salmon Society review an "Overview of Sea Lice Issues and Risks to Farmed and Wild Salmon" prepared by Saksida and Downey for Cermaq (Mainstream). The response addresses the lack of publicly available data in the form needed to effectively evaluate sea lice impacts as well as key published research and management details that Saksida and Downey failed to include in their review.  Full Response. (pdf)

2008, June Map Of Juvenile Pink and Chum Salmon Swimming Near Salmon farms Suffer Higher Levels of Sea Lice Infestation Than Juveniles In Fish Farm-Free Areas Of the B.C. Coast.
A new map, produced by the Living Oceans Society, compiles all the available sea lice sampling from recent years into one geographic representation. The map locates the sampling sites for each study throughout the BC coast in relation to fish farms that were active at the time of the sampling. It separates the sites into three distinct areas where wild juvenile pink and chum salmon were either exposed to, peripheral to or not exposed to active farms and displays the results in pie charts. The size of each pie is based on the size of the samples in each study. The size of each slice of pie shows the prevalence of sea lice infestation found on the wild juvenile salmon by species. “Prevalence” means the percentage of the total sample that has sea lice. Download pdf of map (3.9 MB) or Open jpg of map.

2008, March - Morton, A., R. Routledge, and M. Krkosek. 2008. Sea louse infestation in wild juvenile salmon and Pacific herring associated with fish farms off the east-central coast of Vancouver Island, British Columbia. North American Journal of Fisheries Management. Published online March 31, 2008. (pdf)
The authors report on 2 years of sea louse field surveys of wild juvenile pink and chum salmon, as well as wild sockeye salmon O. nerka and larval Pacific herring Clupea pallasii, in another salmon farming region, the Discovery Islands region of British Columbia. These results suggest that the association of salmon farms with sea lice infestations of wild juvenile fish in Pacific Canada now extends beyond juvenile pink and chum salmon in the Broughton Archipelago.

2008, February - CAAR Review of PSF Sea Lice Science Report
The CAAR review of "Science and Sea Lice: What do we know?" a report released by the BC Pacific Salmon Forum prepared by Brian Harvey, February 2008, reveals the lack of effective evaluation or synthesis of the science. Instead of resolving the "sea lice question," the review muddies the waters of what is clearly a relevant ecological and sociological topic. Link to the Pacific Salmon Forum report (pdf).

2008, January 3 - Andrew A. Rosenberg. The Price of Lice. NATURE. 451:23-24.
Wild salmon stocks in Canadian coastal waters are being severely affected by parasites from fish farms. So intense are these infestations that some populations of salmon are at risk of extinction. (pdf)

2007, December - Salmon Farms Drive Wild Salmon Towards Extinction
A study appearing in the December 14 issue of the journal Science shows, for the first time, that parasitic sea lice infestations caused by salmon farms are driving nearby populations of wild salmon toward extinction. Read the research summary. (pdf)

2005, October - Sea Lice and Salmon: BC Briefing Note. Coastal Alliance for Aquaculture Reform (CAAR). (pdf)
A succinct, 11-page analysis of the problem of sea lice including references for further reading.

2005, September 28 - Backgrounder: Pink Salmon and Sea Lice Chronology of Events. Coastal Alliance for Aquaculture Reform. (pdf)

2005, September 28 -
Backgrounder: Science Summary: Facts About Sea Lice, Fish Farms and Wild Salmon.Coastal Alliance for Aquaculture Reform. (pdf)

Sea Lice Are Real
PDF presentation on sea lice in the eastern Pacific.

2005, March - Transmission dynamics of parasitic sea lice from farm to wild salmon
Proceedings of Royal Society B March 30, 2005 Transmission dynamics of parasitic sea lice from farm to wild salmon. Authors: Martin Krkosek, Mark A. Lewis, John P. Volpe

2004, November 18 - Simon Fraser University Convenors Report: Scientists Roundtable on Sea Lice and Salmon in the Broughton Archipelago Area of British Columbia. Part of the Speaking for the Salmon Dialogue Series that includes sections on recommended research and future management.

2004, April - Sea Lice and Salmon: Elevating the dialogue on the farmed-wild salmon story.
This Watershed Watch report provides overviews of aquaculture, the biology and ecology of sea lice, links between sea lice and salmon farms, the Broughton Archipelago pink salmon collapse, current sea-lice treatments, roles of governments, the people involved, and the merits of conserving the biodiversity of wild salmon. And it does so with a science underpinning and easy-to-read language.

2004, March - Sea lice infection rates on juvenile pink and chum salmon in the nearshore marine environment of British Columbia, Canada. Published in the Canadian Journal of Fisheries and Aquatic Sciences (Vol. 61: 147-157). This study compared sea lice infestation rates on juvenile pink and chum salmon in five nearshore areas of the British Columbia coast selected on the basis of proximity to salmon farms. The authors: Alexandra Morton, Richard Routledge, Corey Peet, and Aleria Ladwig conducted a 10-week study in the Broughton Archipelago that found sea lice were 8.8 times more abundant on wild fish near farms holding adult salmon and 5.0 times more abundant on wild fish near farms holding smolts than in areas distant from salmon farms.

2003 - UBC Science Forum: Sea Lice Review and Summary of Research Priorities (Sea Lice White Paper).
Authors: R.S. McKinley, B. Finstad, P.A. Bjørn and K.J. Hunter.

2003, October 15 - CAAR Critique of Sea Lice White Paper.

2001, December - Salmon Farms, Sea Lice and Wild Salmon: Risk, Responsibility and the Public Interest (PDF). Watershed Watch Salmon Society.

 


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