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


Clams, like other bivalve molluscs, may contain high concentrations of domoic acid. (Photo: Stock File)

Study links 'El Niño' with higher shellfish toxicity

Click on the flag for more information about United States UNITED STATES
Thursday, January 12, 2017, 00:20 (GMT + 9)

A group of researchers discovered that there is a strong correlation between toxic levels of domoic acid in shellfish and the warm-water ocean conditions powered by El Niño events and the Pacific Decadal Oscillation.

The relation was found by scientists at the Oregon State University, the University of Oregon, the National Oceanic and Atmospheric Association (NOAA), and the Oregon Department of Fish and Wildlife.

The work was primarily supported by NOAA, and has been published in the scientific journal Proceedings of the National Academy of Sciences.

The study explains that by using a combination of time-series data spanning two decades, the scientists not only showed a clear link between domoic acid and these larger climatic phenomena, but also developed a new model to predict with some accuracy the timing of domoic acid risks in the Pacific Northwest.

Researchers also pointed out that the findings are particularly timely, given the potential for greater domoic acid outbreak occurrences as oceans continue to warm due to climate change.

Domoic acid is a potent neurotoxin produced by specific types of phytoplankton and ingested by shellfish, can cause serious health effects in humans and some other animals.

In recent years, dangerous levels of these toxins have led to the repeated closure of crab and shellfish harvesting in the Pacific Northwest among others as the problem threatens public health, marine wildlife and can cost millions for coastal economies.

Although it was suspected that these episodes were connected to major climatic forces, it had not been confirmed until now.

The acid is produced by the diatom genus Pseudo-nitzschia, and enters the marine food web when toxic blooms of these micro-algae are ingested by animals such as anchovies and shellfish.

In humans, it is referred to as “amnesic shellfish poisoning,” and symptoms can range from gastrointestinal disturbance to seizures, memory loss or, rarely, death.

Matt Hunter, co-author of the study with the Oregon Department of Fish and Wildlife, explained, “Advance warning of when domoic acid levels are likely to exceed our public health thresholds in shellfish is extremely helpful.”

“Agencies like mine can use this model to anticipate domoic acid risks and prepare for periods of more intensive monitoring and testing, helping to better inform our decisions and ensure the safety of harvested crab and shellfish,” the researcher stressed.


[email protected]
www.fis.com


 Print


Click to know how to advertise in FIS
MORE NEWS
Spain
Jul 26, 22:30 (GMT + 9):
Spanish tuna fleet requests mission against piracy extension in Indian Ocean
Worldwide
Jul 26, 22:10 (GMT + 9):
Walmart chooses BAP to monitor social supplier compliance
Chile
Jul 26, 21:30 (GMT + 9):
Researchers obtain technology patent to replace salmon antibiotics in US
New Zealand
Jul 26, 03:50 (GMT + 9):
IN BRIEF - MPI to host public meeting on proposed changes to aquaculture standards
Zambia
Jul 26, 03:50 (GMT + 9):
IN BRIEF - Govt urged to regulate fish imports – ADAZ
France
Jul 26, 03:50 (GMT + 9):
IN BRIEF - Les Mousquetaires Develops Aquaculture Cooperative
United Kingdom
Jul 26, 03:00 (GMT + 9):
IN BRIEF - Scientists hope fish clues aid spinal cord injury treatment
Canada
Jul 26, 03:00 (GMT + 9):
IN BRIEF - Aquaculture environmental assessment decision has NDP’s support
United States
Jul 26, 03:00 (GMT + 9):
IN BRIEF - Oxygen-sucking algae bloom blamed for fish die-off in south Boulder's Tantra Lake
United States
Jul 26, 03:00 (GMT + 9):
IN BRIEF - U.S. Senate looks to renew ‘Frankenfish’ import ban
United Kingdom
Jul 26, 03:00 (GMT + 9):
IN BRIEF - Marine Harvest seeks to fill posts at Skye factory
Canada
Jul 26, 03:00 (GMT + 9):
IN BRIEF - Premier says government considering appeal of aquaculture ruling
Australia
Jul 26, 03:00 (GMT + 9):
IN BRIEF - Tassal salmon farm at Okehampton Bay 'puts calving southern right whales at risk'
Oman
Jul 26, 03:00 (GMT + 9):
Seafood production grows 6.1 pct in Q1
Chile
Jul 26, 02:50 (GMT + 9):
Scientific vessel starts hake assessment



Lenguaje
FEATURED EVENTS
  
TOP STORIES
INPLF joins a global collaboration to research fishing communities
Indonesia A team of international partners and local stakeholders is to develop a project intended to help build long-term research capability for marine planning in East and Southeast Asia over the next four years and support local coastal communities.
Snow crab fishery closes to protect right whales
Canada Fisheries and Oceans Canada decided the closure of snow crab season in the Southern Gulf of St. Lawrence with the aim of protecting North Atlantic right whales from risks posed by the crustacean fishing gear in the area.
Zebrafish embryo cryopreservation achieved by using gold nanotechnology and laser
United States Researchers at the University of Minnesota and the Smithsonian Conservation Biology Institute have been able to provide the first-ever reproducible evidence for the successful cryopreservation of zebrafish embryos.
Lanzarote and Fuerteventura are the Canary Islands with highest toxic microalgae concentration
Spain A new paper published by scientists from the Oceanographic Centre of Vigo reveals that Lanzarote and Fuerteventura are the islands of the Canarian archipelago where there is the highest concentration of the microalgae producing the toxin that causes ciguatera.
 
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.
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. - 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
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 - 2017 Fish Info & Services Co.Ltd| All Rights Reserved.   DISCLAIMER