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


Sea lice. (Photo: Friends of the Irish Environment)

Sea lice kill 1pc of salmon at sea: study

Click on the flag for more information about Republic of Ireland REPUBLIC OF IRELAND
Tuesday, February 05, 2013, 02:50 (GMT + 9)

Sea lice infestation is not one of the factors most likely to influence the conservation status of salmon stocks, according to a study by the Marine Institute and the National University of Ireland Galway (NUIG).

This definitive long-term study, told the Irish Sea Fisheries Board (BIM), involved more than 350,000 fish released into eight different rivers in 28 separate experiments over a nine-year period. The study analysed the impact of sea lice on the marine mortality of Irish salmon smolts and assessed to what extent Irish Atlantic salmon stocks are facing sea lice-induced mortality.

The findings were published in the latest edition of Journal of Fish Diseases.

The researchers treated one group of salmon smolts with a commercial agent that shields them against sea lice infestation for eight weeks after going to sea. The return rates of control or unprotected mirror groups of fish were set against those of the treated fish to check for any additional sea lice induced mortality following their release. 

The research considered the results of a similar but much smaller study done by Inland Fisheries Ireland.

Researchers determined that the level of marine mortality attributable to sea lice infestation was approximately 1 per cent in absolute terms. 

“At these levels, it is unlikely to influence the conservation status of stocks and is not a significant driver of marine mortality,” the article reads. 

Further, the paper suggests that some researchers have reached different conclusions, but that it is only because their experimental design contained serious flaws.

The article notes the powerful trend in climbing marine mortality up to 2008.

“[But] there is no evidence to suggest that this trend is influenced by sea lice infestation levels of outwardly migrating smolts as treated and control fish are equally affected,” the study concludes.

Donal Maguire Director of Aquaculture Development Services of BIM, welcomed the study. 

“This is confirmation of the validity of the approach that we have taken with regard to the development of this industry. The scare stories in relation to sea lice being a threat to wild salmon put out by the opponents of salmon farming have no basis in scientific fact,” he stated. 

“Ireland is uniquely blessed in having an environment naturally suited to salmon farming and all stakeholders should now unite to realise the opportunities this represents and to deliver the much needed economic and employment benefits to coastal communities around Ireland,” Maguire declared.

Professor Phil Thomas, Chairman of Scottish Salmon Producers’ Organisation (SSPO), called the findings “rigorous, definitive and unequivocal.”

“They scientifically expose those who would use speculation and advocacy-based arguments as if they were facts. It is important now for salmon conservation to focus research on the true causes of mortality and the practical ways that they may be addressed or avoided,” he added.

Related article:

- Lice kill large numbers of salmon in Northeast Atlantic Ocean: study 

By Natalia Real
editorial@fis.com
www.fis.com


 Print


Click to know how to advertise in FIS
MORE NEWS
Chile
Feb 18, 04:40 (GMT + 9):
New World Currents satisfied with its results and perspectives
South Korea
Feb 18, 04:00 (GMT + 9):
Vietnamese frozen shrimp subject to inspection in South Korea
Australia
Feb 18, 03:50 (GMT + 9):
Australian authorities detain 29 Vietnamese fishermen
Viet Nam
Feb 18, 02:50 (GMT + 9):
A certain group seeks to take advantage of an environmental incident, says Vasep
Spain
Feb 18, 01:50 (GMT + 9):
Fluorescent polymer detects mercury contamination in fish
Worldwide
Feb 18, 01:10 (GMT + 9):
IN BRIEF - We could eat 90% of the fish we feed other fish
Canada
Feb 18, 01:00 (GMT + 9):
IN BRIEF - IOF Seminar Series: Global Atlas of Marine Fisheries - live-streamed on Facebook IN FEW HOURS!
New Zealand
Feb 18, 01:00 (GMT + 9):
IN BRIEF - NZ flagged vessels should employ New Zealanders - NZ First
Peru
Feb 18, 00:40 (GMT + 9):
Fishing activity would grow to 40pc in 2017
Spain
Feb 18, 00:40 (GMT + 9):
The president of Nueva Pescanova defended pangasius
Spain
Feb 17, 23:30 (GMT + 9):
Galicia, the community that imported more pangasius in 2016
Norway
Feb 17, 22:40 (GMT + 9):
Aker commissions new krill fishing vessel to Norwegian shipyard
Canada
Feb 17, 21:40 (GMT + 9):
Nova Scotia to further boost its live lobster online trade
Germany
Feb 17, 21:00 (GMT + 9):
IN BRIEF - World's oceans losing oxygen, threatening marine life, study finds
New Zealand
Feb 17, 21:00 (GMT + 9):
IN BRIEF - Albacore tuna gets second sustainability tick



Lenguaje
FEATURED EVENTS
  
TOP STORIES
First investment fund in sustainable fisheries launched
United States Investment funds Zoma Capital and Encourage Capital announced the launch of the first-ever sustainable seafood investment holding company, called Pescador Holdings.
Global fisheries lose more than USD 80 billion a year, according to study
Worldwide A new report by the World Bank confirms that overexploitation is not a good strategy to manage a renewable natural resource like fish stocks, for steady profits, reliable jobs and long-term growth.
Government proposes plan to resolve fishermen's strike
Iceland The Minister of Fisheries and Agriculture met with negotiating committees of Icelandic fishermen and representatives of fisheries after a full day of negotiations.
Fluorescent polymer detects mercury contamination in fish
Spain Researchers at the University of Burgos have manufactured a fluorescent polymer, called JG25, capable of detecting the presence of mercury, in both organic and inorganic form, in fish.
 
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
Nueva Pescanova, S.L. - Group Headquarters
Sea Harvest Corporation (PTY) Ltd.
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.
Food Project (Siam) Co., 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. -Headquarter-
Friosur S.A. - Headquarters
Cargill, Incorporated - Global Headquarters
Benihana Inc.
Leardini Pescados Ltda
Mitsubishi Corporation Marine Products Depts. D.Team
CJ Corporation  -Holding Headquarter-
Greenpeace International - The Netherlands
David Suzuki Foundation
Fisheries and Oceans Canada -Communications Branch-
Mitsui & Co.,Ltd - Headquarters
Ocean Trawlers Group - Ocean Trawlers HK Ltd.
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 - 2017 Fish Info & Services Co.Ltd| All Rights Reserved.   DISCLAIMER