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


The populations of mussels, salmon and sea lice will be monitored for several years. (Photo: Stock File/FIS)

Sea lice pests could be treated with mussels: study

Click on the flag for more information about United States UNITED STATES
Thursday, June 30, 2011, 23:30 (GMT + 9)

University of Maine researchers have demonstrated that the blue mussel can eat larvae of the parasitic sea louse that has been decimating farmed finfish stocks. The results could be highly useful for Maine’s farmed salmon industry.

The findings were published recently in the journal Aquaculture. If further analysis in the field supports these first findings, mussels could be used as another disease management strategy for weakening the infectious pressure of sea lice in finfish farms, as the pest has become resistant to drugs.

The paper could also be good news for Maine’s development of integrated multi-trophic aquaculture (IMTA), an alternative to the standard mono-culture aquaculture. IMTA lowers the environmental impacts of commercial aquaculture by combining fed species, such as salmon, with extractive species, such as mussels.

“Extractive species are filter-feeding so they’re taking in all the phytoplankton and zooplankton and whatever’s in the water column, but they’re also taking in excess fish food and feces and removing all those organics from the water,” postdoctoral researcher Sally Molloy, a microbiologist in UMaine’s School of Marine Sciences explicated. 

“The idea is hopefully IMTA practices reduce the amount of nutrients that are going into the ecosystem because of the fish farm. It’s sort of a greener version of farming,” she said.

The research into this and other IMTA-related work is being funded by USD 1.6 million in grants from organisations including Maine Sea Grant, the Maine Technology Institute, the National Oceanographic and Atmospheric Administration, and the Maine Aquaculture Innovation Center.

The sea louse feeds on the skin and tissue of its host. Most research focuses on the stages when it has already infected its host. 

UMaine researchers have concentrated on combating the sea louse in its larval stage.

The researchers gathered sea lice egg strings from an infected commercial salmon farm. The eggs hatched and were reared to the copepodid stage. 

Meanwhile, the team got mussels from a local commercial mussel farmer and exposed them to the sea lice copepods for 30 or 60 minutes, after which the contents of the mussels’ stomachs were removed for DNA studies which showed that the mussels had ingested the sea lice copepodids.

The UMaine team later this year will insert a mussel raft into the waters of a salmon farm on the Maine coast to determine if their results hold up on a larger scale. The populations of mussels, salmon and sea lice will be monitored for several years to determine how they affect each other.

Ian Bricknell, professor at UMaine’s School of Marine Sciences, said seaweed could be farmed in a larger area surrounding the mussel rafts to round out the site’s productivity. Seaweed growth is fortified by nitrogen and phosphates found in salmon effluent, Bangor Daily News reports. 

By Natalia Real


editorial@fis.com


www.fis.com


 Print


Click to know how to advertise in FIS
MORE NEWS
United States
Jul 28, 23:00 (GMT + 9):
NAO becomes a tool to boost Atlantic cod management
Ecuador
Jul 28, 21:40 (GMT + 9):
Ban begins to protect tuna populations
Australia
Jul 28, 03:00 (GMT + 9):
IN BRIEF - Scientist in project to scan all fish
Canada
Jul 28, 03:00 (GMT + 9):
IN BRIEF - First Nations group urges feds to stop expansion of fish farms
Zambia
Jul 28, 03:00 (GMT + 9):
IN BRIEF - Kasempa to have aqua park
Micronesia
Jul 28, 03:00 (GMT + 9):
IN BRIEF - Deepest-ever reef survey by divers discovers new fish species
United States
Jul 28, 03:00 (GMT + 9):
IN BRIEF - No typical salmon run: Fish spill across highway in Alaska
Canada
Jul 28, 03:00 (GMT + 9):
IN BRIEF . A shrimp apocalypse? Anything is possible, says DFO scientist
United States
Jul 28, 02:50 (GMT + 9):
Scientist intends to digitize 3D replica of all fish in the world
Canada
Jul 28, 02:10 (GMT + 9):
NL releases aquaculture project in Placentia Bay from environment assessment
Philippines
Jul 28, 02:00 (GMT + 9):
IN BRIEF - Marine Products Corporation Reports Second Quarter 2016 Financial Results
Viet Nam
Jul 28, 02:00 (GMT + 9):
IN BRIEF - ASEAN - the 4th largest importer of Vietnam Pangasius
Viet Nam
Jul 28, 02:00 (GMT + 9):
IN BRIEF - Senamico to hit sales of VND 780 billion in 2016
Canada
Jul 28, 02:00 (GMT + 9):
IN BRIEF - ASF critical of decision to release Placentia Bay aquaculture project from environmental assessment
United Kingdom
Jul 28, 01:10 (GMT + 9):
Ocean acidification alters fish reproductive behaviour



Lenguaje
FEATURED EVENTS
  
TOP STORIES
Officials accused of certifying substandard aquaculture products
Viet Nam Officials from the Centre for Aquaculture Testing were dismissed after an investigation revealed that since 2013 they had forged certificates of aquaculture products, some of which were harmful for consumers’ health.
Reconstruction plan after earthquake and tsunami reaches 95pc
Chile In less than a year after the 8.4 Richter-scale earthquake and subsequent tsunami hitting the Region of Coquimbo and northern central areas of the country, SUBPESCA released a balance of the major reconstruction advances of "Coquimbo Restarts" program.
Does oxidized fish oil pose health risks?
New Zealand There is no evidence of a food safety risk associated with fish oil supplements currently on the New Zealand market, according to the Ministry for Primary Industries and the Ministry of Health.
Patagonian ministers discuss stance in defense of export refunds
Argentina Ministers of Production of Patagonian provinces will meet to discuss the possibility of joint action with the national government for the refunds for producers exporting from the ports of the region to remain in force.
 
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 - 2016 Fish Info & Services Co.Ltd| All Rights Reserved.   DISCLAIMER