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


A team of scientists is studying the effects of radioactive contamination in several species of seafish and shellfish. (Photo: Greenpeace)

Researchers focus on radiation's effects on marine life

Click on the flag for more information about Japan JAPAN
Tuesday, September 27, 2011, 22:40 (GMT + 9)

Japanese authorities want to study how radioactive cesium impacts marine life to determine how they can replenish local fish stocks harmed by the Fukushima nuclear disaster that exploded earlier this year.

Starting next month, the prefectural fisheries experiment station in Iwaki will begin an experiment study to see how fish and shellfish absorb cesium and how long it will be take to lower the effects of cesium. Researchers will keep marine life in cesium-laced water tanks during the study.

Coastal fishing off Fukushima has been suspended; the study aims to secure the safety of marine life for the future recovery of the prefecture’s fisheries.

A survey finished earlier this month by the prefectural fisheries experiment station found that levels of radioactive cesium surpassing the government's provisional safety limit of 500 becquerels per kg were identified in 18 out of 94 types of fish and shellfish caught off Fukushima, Mainichi Japan reports.

However, cesium in white bait was not detected in September even though 850 becquerels of cesium were found in the fish in May. Meanwhile, levels of cesium three times the provisional limit have been observed in some flatfish.

Why the effect of cesium differs depending on fish species and even individual fish remains a mystery.

The Oceanographic Society of Japan believes the government should release radiation readings in sea water even if it is below the minimum measurement level, because even then the radioactive elements may be dangerous when concentrated in seafood, Bloomberg reports.

“Depending on the species, fish have been known to accumulate as much as 100 times the amount of pollutants in the environment,” pointed out Jota Kanda, a professor at Tokyo University of Marine Science and Technology specializing in marine environment.

The fisheries experiment station will conduct the research with the Fisheries Research Agency, a Yokohama-based independent administrative institution.

They have already started keeping red sea bream and will begin gathering several other species including flatfish, abalone and sea urchin.

Scientists will hold uncontaminated fish and shellfish in radiation-contaminated water and keep contaminated fish in uncontaminated seawater. They hope to establish the relationship between the concentration of contamination in seawater and the level of resulting contamination and also how long it will take to reduce it.

"If we could reveal how radiation affects marine products, we can establish the means to secure seafood safety. We are committed to producing results that can help the recovery of local fisheries," said Satoshi Igarashi, head of the fisheries experiment station.

Although the ban on offshore fishing was lifted in Fukushima in June, coastal and trawl fishing remain suspended out of radiation contamination concerns.

Fukushima’s federation of fisheries cooperative associations decided last week that the ban will continue through October, but it did begin to consider resuming on an experimental basis the fishing of octopus, squid and other species whose levels of cesium are within the safety limit.

Related articles:

-
Govt must release more data on radiation in seafood: oceanographic group

-
Radioactive caesium found in whales 

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

Photo Courtesy of FIS Member  Greenpeace International - The Netherlands
 Print


Click to know how to advertise in FIS
MORE NEWS
United Kingdom
Sep 2, 03:50 (GMT + 9):
EU’s largest wild eel fishery to be boosted
Peru
Sep 2, 03:10 (GMT + 9):
Trout production in Puno bordering 30,000 tonnes
Ghana
Sep 2, 02:30 (GMT + 9):
Concerns expressed over tilapia import ban
Spain
Sep 2, 01:50 (GMT + 9):
Pescanova earns EUR 1,790 million in the first half
Iceland
Sep 2, 01:40 (GMT + 9):
IN BRIEF - HB Grandi has signed a contract for the construction of three wetfish trawlers
United States
Sep 2, 01:40 (GMT + 9):
IN BRIEF - Value of World Aquafeed Market Growing at 12.3% CAGR to 2019
India
Sep 2, 01:40 (GMT + 9):
IN BRIEF - Floating sensor buoy saves aqua farmers from ‘drowning’
Republic of Ireland
Sep 2, 01:30 (GMT + 9):
IN BRIEF - Environmental lobby threatens legal action over escaping salmon
Marshall Islands
Sep 2, 01:30 (GMT + 9):
IN BRIEF - Fisheries projects good news for Marshall Islands economy
Canada
Sep 2, 01:20 (GMT + 9):
IN BRIEF - Halibut-tracking test hopes to prove quota increase needed
South Korea
Sep 2, 00:50 (GMT + 9):
SK Telecom validates IoT-based management system at eel farm
Spain
Sep 1, 23:50 (GMT + 9):
Anchovy fishery closure surprises Galician fishermen
European Union
Sep 1, 23:30 (GMT + 9):
Europêche complains about Damanaki's inaction on Russian import ban
Norway
Sep 1, 23:00 (GMT + 9):
Ground-breaking study on pesticide resistance in sea lice
Peru
Sep 1, 22:10 (GMT + 9):
Growing demand for Peruvian scallops in EU



Lenguaje
FEATURED EVENTS
  
TOP STORIES
Govt plans to limit Pacific bluefin tuna catch
Japan The Japanese Government intends to reduce the catch of immature Pacific bluefin tuna and prevent overfishing of the high-priced fish by implementing common regulations internationally, out of criteria currently adopted independently by Japan.
High supply and low prices boost octopus fishing ban
Mauritania For three months octopus will not be allowed to be caught in Mauritanian waters, following the ban enacted by the Government of this country from 21 August.
Galicia reopens some raft polygons and shellfish beds
Spain The presence of the lipophilic toxin in the Galician estuaries is subsiding significantly, which has contributed to the opening of six mussel farming polygons.
Banks to refinance Pescanova’s aquaculture macro-plant in Mira
Portugal The creditor banks of the Portuguese fish farm belonging to Pescanova in Mira finally desisted from recovering EUR 100 million owed by the company through the exercise of their right to sell the assets.
 
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
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