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


Chilean mussel larvae, Mytilus chilensis, seen with a microscope. (Photo: Cetmis)

Mussel seed recruitment boosted with immunofluorescence

Click on the flag for more information about Chile CHILE
Thursday, December 07, 2017, 21:50 (GMT + 9)

By means of laboratory techniques, it is now possible to know the abundance of Chilean mussel (Mytilus chilensis)  larvae in the natural environment, an advance that will facilitate productive decision-making, such as the installation of collectors.

Chile is the second global mussel producer, after China, and the first exporter of this resource, in an industry made up of seed collectors (juveniles), feeders and processors.

The productive capacity of this sector is subject to obtaining seeds from the natural environment, which is achieved by fixing larvae of this resource on substrates installed by those who collect them. This process is part of a chain whose first link should be to identify and quantify the abundance of larvae present in the environment.

Until a few years ago, mussel larvae quantification was performed almost exclusively by microscopic observation done by an expert person, able to distinguish the different larval species of bivalves present in the plankton. This methodology limits the identification and presents a degree of uncertainty, since in nature there is a great variety of species and sizes of larvae coincide in the same period of time, which makes an accurate characterization extremely difficult.

In view of this situation, Chinquihue Foundation recognized the availability of a technique based on immunodetection for the safe and rapid quantification of Chilean mussel larvae at the University of Vigo (Spain). This technique allows to distinguish with certainty these larvae from those of other bivalves, especially Chilean ribbed mussel (Aulacomya ater) and chorus mussel (Choromytilus chorus), which are undesired species for the mussel industry.

The immunodetection technique considers taking samples in the field through a plankton network and transferring them to the laboratory, where a cleaning process begins through centrifugation with a sugar gradient, to separate the bivalve larvae from microalgae and other planters, such as small crustaceans.

After this cleaning process, bivalve larvae are incubated with two antibodies, the first one "adheres" only to larvae of the Mytilus genus, while the second antibody has a fluorescent yellow fluorochrome that binds to the first one. In this way, if there are Chilean mussel larvae in the sample, they will be "dyed" with a phosphorescent yellow colour, especially at the edge of the mantle, and thus they can be identified and differentiated from larvae of other bivalve species.

Currently, through the Technological Extension Centre for Sustainable Mussel Farming (CETMIS), performed by Chinquihue Foundation and supported by CORFO, larval abundance information is being released in different areas of Los Lagos Region, quantified by the immunodetection technique (http://www.cetmis.cl/home/servicios/informe-larvario/). In this way, information that allows mussel farmers to make productive decisions in an informed manner is made freely available, for example for the installation of seed collectors at the most appropriate time, or to buy collectors from areas where there was a great abundance of mussel larvae over other species.

Source: CETMIS

[email protected]
www.fis.com


 Print


Click to know how to advertise in FIS
MORE NEWS
Peru
Jul 18, 02:10 (GMT + 9):
EU sanitary authority approves control systems for bivalve mollusks
United States
Jul 18, 02:10 (GMT + 9):
Immigrant visa cap crushes Texas shrimp industry
Jamaica
Jul 18, 01:20 (GMT + 9):
US-China trade battle could benefit Jamaican lobster exporters
Rwanda
Jul 18, 01:00 (GMT + 9):
IN BRIEF - Fish farmers decry lack of quality, affordable fish feeds
India
Jul 18, 01:00 (GMT + 9):
IN BRIEF - Fishermen unhappy over poor fish catch
Republic of Ireland
Jul 18, 01:00 (GMT + 9):
IN BRIEF - Thirteen hospitalised after fish factory gas leak
United States
Jul 18, 01:00 (GMT + 9):
IN BRIEF - Are Chesapeake Bay dolphins eating all the fish?
Republic of Ireland
Jul 18, 01:00 (GMT + 9):
IN BRIEF - Over 10,000 protected lamprey fish killed in suspected chemical poisoning
Australia
Jul 18, 01:00 (GMT + 9):
IN BRIEF - Salmon return to destocked Macquarie Harbour Franklin lease after environmental tick
United Kingdom
Jul 18, 01:00 (GMT + 9):
IN BRIEF - Kilkeel fish plant: Two 'stable' after ammonia leak
South Africa
Jul 18, 01:00 (GMT + 9):
Fishing vessel detained under ILO convention
Spain
Jul 18, 00:00 (GMT + 9):
Environmental organizations call for Iberian sardine recovery plan
Viet Nam
Jul 17, 23:50 (GMT + 9):
Brazil attracts Việtnamese seafood exporters' attention
Spain
Jul 17, 23:00 (GMT + 9):
Andalusia approves new fisheries trade decree
European Union
Jul 17, 22:40 (GMT + 9):
EU and Japan sign free trade agreement



Lenguaje
FEATURED EVENTS
  
TOP STORIES
Illegal salmon nets seized in Donegal
United Kingdom Inland Fisheries Ireland has seized 26 untagged salmon in the Glenties area in Donegal and 1100 yards of illegal salmon drift nets off Inishbeg Island.
Post-Brexit UK's fishing proposals promote sustainability
United Kingdom The UK government has released its proposals for the future trade with the European Union after leaving the bloc, next March.
Hvalur hf accused of slaughtering blue whale, angering marine conservationists
Iceland An Icelandic anti-whaling group has accused company Hvalur hf of slaughtering an endangered blue whale in the fjord of Hvalfjordur, which sparked anger among marine conservationists.
Friend of the Sea praises Sri Lanka’s tuna processor for yellowfin tuna conservation efforts
Sri Lanka Non-government organisation Friend of the Sea awarded a Sri Lanka’s tuna processor for its commitment towards yellowfin tuna conservation in the Indian Ocean.
 
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