Welcome to FIS   Sponsored By
United States
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
South Korea
Dec 22, 03:40 (GMT + 9):
New TLC favours entry of Vietnamese seafood products
Ecuador
Dec 22, 02:30 (GMT + 9):
Shrimp leads non-oil exports for the first time
Latvia
Dec 22, 01:40 (GMT + 9):
EU funds expected to help treble Latvian aquaculture production
Mexico
Dec 22, 00:40 (GMT + 9):
Biotechnology to farm sea cucumber and yellowtail snapper under development
United States
Dec 20, 02:00 (GMT + 9):
IN BRIEF - WSU report says water plan overvalues fish recovery
India
Dec 20, 02:00 (GMT + 9):
IN BRIEF - Vijayawada to be country’s fish capital
United States
Dec 20, 01:50 (GMT + 9):
IN BRIEF - EPA to step in on fish consumption water rules
Australia
Dec 20, 01:50 (GMT + 9):
IN BRIEF - Seafood country-of-origin labelling may be extended to fish and chip shops
New Zealand
Dec 20, 01:50 (GMT + 9):
IN BRIEF - Finfish Farming Plan Goes Belly Up
United Kingdom
Dec 20, 01:50 (GMT + 9):
IN BRIEF - New record for deepest fish
European Union
Dec 20, 01:50 (GMT + 9):
IN BRIEF - Call for fisheries experts for the Joint Scientific Committees within Sustainable Fisheries Agreements
Australia
Dec 20, 01:50 (GMT + 9):
IN BRIEF - Demand for trout increases as people choose fish over ham this Christmas
Australia
Dec 20, 01:50 (GMT + 9):
IN BRIEF - Barramundi: calls to restrict the name to Australian fish
Thailand
Dec 19, 23:50 (GMT + 9):
Better prospects for Thai shrimp in 2015
Chile
Dec 19, 23:40 (GMT + 9):
25 tonnes of illegal hake seized in less than a week



Lenguaje
FEATURED EVENTS
  
TOP STORIES
Arctic warming poses new challenges to fishing
United States Arctic warming is deeply affecting the top of the planet and some of the biggest changes represent a challenge for fisheries in the north.
EUR 800,000 granted to fleet operating in Mauritania
Spain The Ministry of Agriculture, Food and Environment will grant an aid to shipowners of Spanish fishing vessels affected by the suspension of the agreement between the EU and Mauritania.
Lower lobster capture would mean returning to 'typical years'
United States Apparently, the Maine’s 2014 lobster fishing season will result in lower catches compared to the two previous years, which increases the likelihood of rise in market prices.
Spain achieves its aims in TAC negotiations for 2015
Spain For next year Spain has managed to be granted a "record" quota of northern hake, one of the species of high interest for the Spanish fleet, and significant increases for other fisheries.
 
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 (Head Office)
Inmarsat plc - Global Headquarters
Marks & Spencer
Tesco PLC (Supermarket) - Headquarters
Pescanova, S.A. - Group Headquarters
Sea Harvest Corporation (PTY) Ltd.
I&J - Irvin & Johnson Limited
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 ehf - 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-
Grupo Calvo - Luis Calvo Sanz, S.A. (Group 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 - 2014 Fish Info & Services Co.Ltd| All Rights Reserved.   DISCLAIMER