Welcome to FIS   Sponsored By
Subscribe to FIS | Register with FIS | Advertise with FIS | Newsletter | About FIS | Contact us
   


A sockeye salmon sample from the Fraser river. (Photo: Jody Eriksson Raincoast Conservation Foundation)

New study links wild sea lice to salmon farms

Click on the flag for more information about Canada CANADA
Friday, February 11, 2011, 03:20 (GMT + 9)

The British Columbia Salmon Farmers Association (BCSFA) has stated that additional research into sea lice and its effect on wild salmon stocks is both important and necessary in response to the findings of a new study that ties salmon farms to wild salmon infected with sea lice.

A new study, “Sea Louse Infection of Juvenile Sockeye Salmon in Relation to Marine Salmon Farms on Canada’s West Coast,” published this week in the Public Library of Science ONE links sea lice on Fraser River Sockeye with salmon farms. The study was conducted by researchers from Raincoast Conservation Foundation, Watershed Watch Salmon Society and the Universities of Victoria and Simon Fraser.

The study genetically identified 30 different stocks of infected Fraser sockeye that swim past open net-pen salmon farms in the Strait of Georgia, such as the endangered Cultus Lake stock. The researchers determined that parasitism of Fraser sockeye increased strongly after the juvenile fish passed by fish farms, and that the same species of lice were present in large numbers on the farms.

Further, after swimming past salmon farms, the juvenile Fraser sockeye hosted an order of magnitude more sea lice than Skeena and Nass River sockeye that migrated along the north coast, which is free of farms. 

Sockeye sampling. (Photo: Stan Proboszcz Watershed Watch Salmon Society)

"The implications of these infections are not fully clear, but in addition to any direct physical and behavioural impacts on juvenile sockeye, sea lice may also serve as vectors of disease or indicators of other farm-origin pathogens" said Michael Price, lead author.

As well, the study recorded the highest lice levels on juvenile sockeye in the Georgia Strait near a farmed salmon processing plant, which intensifies existing concerns regarding the full potential consequences of the salmon farming sector on wild salmon in BC. 

The aquaculture industry agrees with the researchers that more work is needed. 

"Our farmers take very seriously the responsibility of managing sea lice on our fish to ensure they are not putting additional stress on wild salmon," said BCSFA Executive Director Mary Ellen Walling. "Both sea lice and the challenges faced by BC's wild salmon are complicated, multi-layered issues and there is more work to be done."

Juvenile sockeye Okisollo. (Photo: Jody Eriksson Raincoast Conservation Foundation)

The new study notes the factors that remain unknown. These are that the impact of sea lice infestation is blurred and that there is still no explanation for the prominent differences in the types of louse observed on wild salmon.

"We think the genetics research here is interesting -- and will help provide a fulsome view for people looking at the survival of Fraser River Sockeye," said Walling. "But we agree with what the authors of this report say: there are still questions here and more answers will only help make the environment and our industry healthier."

Related articles:

- Global campaign launched against Big Aquaculture 
- Lice infests wild salmon all along BC coast: study 

By Natalia Real
[email protected]
www.fis.com



 Print


Click to know how to advertise in FIS
MORE NEWS
Malaysia
Oct 20, 03:20 (GMT + 9):
Sabah stops mangrove exploitation for shrimp farming
Kenya
Oct 20, 03:00 (GMT + 9):
IN BRIEF - Fishermen welcome import ban, call for modern gear
United States
Oct 20, 03:00 (GMT + 9):
IN BRIEF - UMaine team gets help in battle with salmon-ruining lice
United Kingdom
Oct 20, 03:00 (GMT + 9):
IN BRIEF - With sales at GBP 150m a year fish are good for the economy –and dinner table
Norway
Oct 20, 03:00 (GMT + 9):
IN BRIEF - Marine Harvest ASA: Issuance of shares through partial conversion of bond and registration of share capital increase
Peru
Oct 20, 02:20 (GMT + 9):
Over 2,200 artisanal vessels registered for the formalization process
United States
Oct 20, 02:00 (GMT + 9):
StarKist Co. pleads guilty for canned tuna price fixing
Ghana
Oct 20, 01:20 (GMT + 9):
Tilapia sold in Asutsuare is safe, states Ministry of Fisheries
United Kingdom
Oct 20, 00:10 (GMT + 9):
New study mitigates concerns over imported farmed shrimp
Spain
Oct 19, 23:50 (GMT + 9):
Galician fleet returns from the Falklands after very good squid harvest
European Union
Oct 19, 22:50 (GMT + 9):
EU and Korea join efforts to fight against IUU fishing
Ecuador
Oct 19, 22:10 (GMT + 9):
Shrimp sector will exceed 2017 exports, but for a similar value
Chile
Oct 19, 21:20 (GMT + 9):
Supreme Court confirms sanction to seaweed export plant
Thailand
Oct 19, 04:40 (GMT + 9):
IN BRIEF - Joining forces for fisheries: 300+ delegates to gather for 3rd World Small-Scale Fisheries Congress
European Union
Oct 19, 04:00 (GMT + 9):
IN BRIEF - Study challenges concerns around imported farmed shrimp



Lenguaje
FEATURED EVENTS
  
TOP STORIES
EU renews fishing partnership agreement with Cape Verde
European Union The EU and Cape Verde have agreed to renew the current Sustainable Fishing Partnership Agreement protocol, which expires at the end of the year.
Ecuadorian FIP accepted onto the IFFO RS Improver Programme
United Kingdom Ecuador small pelagics Fishery Improvement Project has successfully met the criteria for acceptance on to the IFFO RS Improver Programme, IFFO RS reported.
Illegal bluefin tuna trade ring dismantled
Spain The Civil Guard has dismantled a ring that in Spain traded tuna that had been illegally fished in other countries and that, in addition, sometimes had health irregularities.
Irish seafood sales grow, inside and outside the country
Republic of Ireland Irish seafood exports recorded last year in the internal and external market for the first time exceeded the mark of EUR 1 billion, transforming 2017 into "an exceptional year for the country's marine economy".
 
Maruha Nichiro Corporation
Nichirei Corporation -Headquarter-
Pesquera El Golfo S.A.
Ventisqueros - Productos del Mar Ventisqueros S.A
Wärtsilä Corporation -Wartsila Group Headquarter-
ITOCHU Corporation -Headquarter-
BAADER - Nordischer Maschinenbau Rud. Baader GmbH+Co.KG (Head Office)
Inmarsat plc - Global Headquarters
Marks & Spencer
Tesco PLC (Supermarket) - Headquarters
Sea Harvest Corporation (PTY) Ltd. - Group Headquarters
I&J - Irvin & Johnson Holding Company (Pty) Ltd.
Blue Continent Products (Pty) Ltd - (Oceana Group Limited)
Pesquera San Jose S.A.
Nutreco N.V. - Head Office
CNFC China National Fisheries Corporation - Group Headquarters
W. van der Zwan & Zn. B.V.
SMMI - Sunderland Marine Mutual Insurance Co., Ltd. - Headquarters
Icicle Seafoods Inc. -Headquarter-
Starkist Seafood Co. - Headquearters
Trident Seafoods Corp.
American Seafoods Group LLC - Head Office
Marel - Group Headquarters
SalMar ASA - Group Headquarters
Sajo Industries Co., Ltd
Hansung Enterprise Co.,Ltd.
BIM - Irish Sea Fisheries Board (An Bord Iascaigh Mhara)
CEFAS - Centre for Environment, Fisheries & Aquaculture Science
COPEINCA ASA - Corporacion Pesquera Inca S.A.C.
Chun Cheng Fishery Enterprise Pte Ltd.
VASEP - Vietnam Association of Seafood Exporters & Producers
Gomes da Costa
Furuno Electric Co., Ltd. (Headquarters)
NISSUI - Nippon Suisan Kaisha, Ltd. - Group Headquarters
FAO - Food and Agriculture Organization - Fisheries and Aquaculture Department (Headquarter)
Hagoromo Foods Co., Ltd.
Koden Electronics Co., Ltd. (Headquarters)
A.P. Møller - Maersk A/S - Headquarters
BVQI - Bureau Veritas Quality International (Head Office)
UPS - United Parcel Service, Inc. - Headquarters
Hamburg Süd Group - (Headquearters)
Armadora Pereira S.A. - Group Headquarters
NOAA - National Oceanic and Atmospheric Administration (Headquarters)
Omega Protein Corporation -Headquarter-
Marona S.A.
Marine Harvest ASA - Headquarters
Marubeni Europe Plc -UK-
Findus Ltd
Icom Inc. (Headquarter)
WWF Centroamerica
Oceana Group Limited
The David and Lucile Packard Foundation
Ajinomoto Co., Inc. - Headquarters
Friosur S.A. - Headquarters
Cargill, Incorporated - Global Headquarters
Benihana Inc.
Leardini Pescados Ltda
Mitsubishi Corporation Marine Products Depts. D.Team
CJ Corporation  - Group Headquarters
Greenpeace International - The Netherlands | Headquarters
David Suzuki Foundation
Fisheries and Oceans Canada -Communications Branch-
Mitsui & Co.,Ltd - Headquarters
NOREBO Group (former Ocean Trawlers Group)
Natori Co., Ltd.
Carrefour Supermarket - Headquarters
FedEx Corporation -Headquarter-
AKBM - Aker BioMarine ASA
Seafood Choices Alliance -Headquarter-
Austevoll Seafood ASA
Walmart / Wal-Mart Stores, Inc. (Supermarket) -Headquarter-
New Japan Radio Co.Ltd (JRC) -Head Office-
Gulfstream JSC
INVE Group - Head Office
Marine Stewardship Council - MSC Worldwide Headquarters
Royal Dutch Shell plc (Headquarter)
Genki Sushi Co.,Ltd -Headquarter-
Iceland Pelagic ehf
AXA Assistance Argentina S.A.
Caterpillar Inc. - Headquarters
Tiger Brands Limited
Morpol ASA - Group Headquarters
SeaChoice
National Geographic Society
AmazonFresh, LLC - AmazonFresh

Copyright 1995 - 2018 Fish Info & Services Co.Ltd| All Rights Reserved.   DISCLAIMER