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
Feb 13, 07:40 (GMT + 9):
IN BRIEF - USDA FSIS Constituent Update - FSIS to Hold Educational Meetings for Importers on Inspection of Siluriformes Fish
Malaysia
Feb 13, 03:00 (GMT + 9):
Sabah relaxes ban on fish exports
Chile
Feb 13, 02:40 (GMT + 9):
Mussels prompted slight growth of aquaculture production in 2015
United Kingdom
Feb 13, 02:00 (GMT + 9):
IN BRIEF - Orkney allocated GBP 482k for fisheries sector
United States
Feb 13, 02:00 (GMT + 9):
IN BRIEF - Ocean Springs' favorite fisheries biologist gets boat named after him
United Kingdom
Feb 13, 01:50 (GMT + 9):
First North Atlantic blue whiting fisheries to bear MSC ecolabel
Sierra Leone
Feb 13, 01:40 (GMT + 9):
IN BRIEF - World Bank poised to put USD 4m into fisheries sector
United Kingdom
Feb 13, 01:40 (GMT + 9):
IN BRIEF - Romantic, sophisticated… and sustainable: Whole Foods first UK retailer to sell MSC certified oysters
United States
Feb 13, 01:40 (GMT + 9):
IN BRIEF - Fire Forces 42 People To Abandon Ship
Australia
Feb 13, 01:30 (GMT + 9):
IN BRIEF - Pacific fishing observer safety measures to be made mandatory
United States
Feb 13, 01:30 (GMT + 9):
IN BRIEF - Port State Measures Agreement Ratification
Spain
Feb 13, 01:20 (GMT + 9):
IN BRIEF - First octopus fishery achieves MSC certification
Norway
Feb 13, 01:20 (GMT + 9):
IN BRIEF - The fishery robot that became a celebrity
European Union
Feb 13, 01:00 (GMT + 9):
IN BRIEF - Illegal eel: black market continues to taint Europe's eel fishery
Viet Nam
Feb 13, 01:00 (GMT + 9):
IN BRIEF - VASEP: Shrimp export to earn VND 3.3 billion in 2016



Lenguaje
FEATURED EVENTS
  
TOP STORIES
Fisheries specialists recommend a greater role for women in aquaculture
India Fisheries scientists recommended a greater role for women self-help groups to boost aquaculture production in the country.
Educational campaign promotes fish consumption
Peru The Peruvian government has announced the launch of a new campaign under the national programme "Let’s eat fish" in order to help reduce levels of overweight and obesity among the Peruvian population.
Harvest strategy can maximise benefits from skipjack tuna
Maldives The Government of the Maldives and the International Pole & Line Foundation brought more than 50 fisheries officials and experts to the Maldives last week to discuss the management of the Indian Ocean’s tuna stocks and to align on an agreed proposal for the implementation of robust harvest control rules in the region.
Ship wanted for toothfish poaching finally caught
Senegal Senegalese government authorities have arrested the Kunlun, a fishing vessel accused of toothfish illegally fishing, which was wanted by the international community.
 
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