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


Professor Christopher J Gobler. (Photo: SOMAS/Miriam Godfrey, NIWA)

Vitamins may advance harmful algal blooms: study

Click on the flag for more information about United States UNITED STATES
Monday, December 06, 2010, 00:30 (GMT + 9)

Vitamins B-1 and B-12 may promote harmful algal blooms (HAB’s), according to a study by Stony Brook University scientists recently published in Proceedings of the National Academy of Sciences (PNAS).

Professor Christopher J Gobler, PhD, research scientist Ying Zhong Tang and PhD candidate Florian Koch of the School of Marine and Atmospheric Sciences at Stony Brook ran experiments to learn whether the species of phytoplankton that constitute HAB’s need B-vitamins to develop. The blooms are formed by phytoplankton and adversely affect coastal ecosystems and fisheries across the globe, costing the US alone hundreds of millions of dollars yearly. 

In recent decades, HAB’s and their effects have worsened. 

Most research has concentrated on chemical nutrients such as nitrogen and phosphorus as the cause, and “the importance of coenzymes and particularly vitamins (vitamins B-1, B-7 and B-12) in regulating and stimulating harmful algal blooms has rarely been considered,” the researchers wrote. 

“[HAB’s] can harm humans by causing poisoning from shellfish contaminated with algal toxins and can damage marine ecosystems by killing fish and other marine life,” Gobler said. “The distribution, frequency and intensity of these events have increased across the globe and scientists have been struggling to determine why this is happening.” 

Every US coastal state suffers from harmful algal blooms, he told. 

“New methods have recently been developed to measure concentrations of vitamins B-1 and B-12 in the ocean and we discovered that vitamin levels were co-varying with the occurrence of HABs,” Gobler continued. 

The scientists looked at more than 40 harmful algal bloom species in the laboratory and said that all but one of the species tested (96 per cent) required vitamin B-12 to grow, and that 20 of 27 (74 per cent) required vitamin B-1. Further, the toxic algae was found to need higher concentrations of vitamins B-1 and B-12 than those reported in the past for other phytoplankton. 

Scientists found that the concentrations measured as needed for growth correspond to vitamin concentrations observed in coastal waters, implying that HAB demands for vitamins may deplete their available supply in hours to days, they said. 

The vitamin requirements of HAB’s were larger than expected partly because most such blooms are caused by algae called dinoflagellates, which often devour large organic molecules like amino acids and proteins which are similar to vitamins. 

“Vitamins are among a suite of organic compounds dinoflagellates exploit for growth. Since dinoflagellates are notorious for the ability to form HAB’s, this study suggests vitamins are key organic compounds that may influence the occurrence of HAB’s of dinoflagellates,” the authors wrote. 

But discovering the chief source of vitamins to HAB’s may be challenging, Gobler warned. 

Related articles:

- Early salmon harvest due to appearance of harmful algae 
- Project to destroy harmful algal blooms gets underway 

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

 


 Print


Click to know how to advertise in FIS
MORE NEWS
Republic of Ireland
Sep 19, 23:50 (GMT + 9):
New control measures stir opposition
Spain
Sep 19, 23:40 (GMT + 9):
Pescanova possibly settling Lafonia sale
Norway
Sep 19, 23:30 (GMT + 9):
IN BRIEF - Belarus Helps Norway's Fish Farmers Skirt Russia's Food Import Ban
United Kingdom
Sep 19, 23:30 (GMT + 9):
IN BRIEF - Analysis: What does the No vote mean for the fishing industry?
United Kingdom
Sep 19, 23:20 (GMT + 9):
IN BRIEF - New Report Reveals Extent of Cetacean Bycatch in Western and Central Indian Ocean
Philippines
Sep 19, 23:20 (GMT + 9):
IN BRIEF - Manila shut down as storm brings heavy downpours to Philippine capital, thousands forced to flee homes
Viet Nam
Sep 19, 23:20 (GMT + 9):
IN BRIEF - VN seafood nets buyers in Moscow
Faroe Islands
Sep 19, 23:20 (GMT + 9):
IN BRIEF - Faroe Islands, Greenland replace Western fish imports banned in Russia
Viet Nam
Sep 19, 23:20 (GMT + 9):
IN BRIEF - Filipino investors do roaring trade in Vietnam
Canada
Sep 19, 23:20 (GMT + 9):
IN BRIEF - Three men rescued from collapsed building on wharf in southwestern N.S.
United Kingdom
Sep 19, 23:20 (GMT + 9):
IN BRIEF - Iceland: Don't expect an increase in fish supplies to Grimsby
New Caledonia
Sep 19, 23:10 (GMT + 9):
Some tuna longliners found to be targeting depleted sharks
European Union
Sep 19, 22:30 (GMT + 9):
EC helps Portugal to enforce fisheries rules
Peru
Sep 19, 22:10 (GMT + 9):
Artisanal fisheries quay modernised
Denmark
Sep 19, 21:40 (GMT + 9):
IN BRIEF - High levels of seafood fraud revealed in Danish fishmongers



Lenguaje
FEATURED EVENTS
  
TOP STORIES
TUF buys Norwegian sardine canner to strengthen its global leadership
Thailand Thai Union Frozen Products Public Company Limited has announced that it has entered into an agreement to acquire 100 per cent of the assets and the trademark of the world's top ten seafood brand: King Oscar.
New codes to boost seafood labels and sustainable supply
United Kingdom The Sustainable Seafood Coalition has announced their two codes of conduct will be launched at the Humber seafood summit, a gathering of industry representatives, in Grimsby.
21 illegally caught bluefin tuna specimens intervened
Spain Under the Fisheries Act of the State, Fisheries Inspection Service personnel intervened 21 bluefin tuna (Thunnus thynnus) specimens in the Strait of Gibraltar that had been captured illegally.
Seafood exports grow 3.9 per cent in first half
Argentina In the first six months of this year, Argentina exported fisheries products for USD 778.8 million, a figure which shows an increase of USD 30 million, or 3.9 per cent, over the same period of 2013.
 
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