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
[email protected]
www.fis.com

 


 Print


Click to know how to advertise in FIS
MORE NEWS
United States
Dec 6, 07:00 (GMT + 9):
IN BRIEF - FDA: Phil-Am Trading, Inc. Recalls Phil-Am Smoked Mackerel Because of Possible Health Risk
United States
Dec 6, 06:00 (GMT + 9):
IN BRIEF - FDA: Royal Seafood Baza, Inc. Recalls Various Ready to Eat Herring Products | Possible Health Risk
China
Dec 6, 02:20 (GMT + 9):
China’s disappearing fish suggest bigger food-safety concerns
United States
Dec 6, 02:00 (GMT + 9):
Fishing ban in international Arctic waters remains elusive
Japan
Dec 6, 01:10 (GMT + 9):
Volunteer group continues checking fish off Fukushima as radiation levels drop
China
Dec 6, 00:40 (GMT + 9):
U.S. Coast Guard wants a bigger role in patrolling the disputed waters
Worldwide
Dec 6, 00:30 (GMT + 9):
United Nations to vote World Tuna Day this week
Chile
Dec 5, 23:50 (GMT + 9):
More than 100 artisanal shipowners complain against the Undersecretariat of Fisheries
Chile
Dec 5, 23:40 (GMT + 9):
Marine Harvest would add 500 salmon
India
Dec 5, 23:00 (GMT + 9):
IN BRIEF - No formalin in imported fish, says Mizoram health department
United Kingdom
Dec 5, 23:00 (GMT + 9):
IN BRIEF - Mystery as thousands of fish wash up on Cornish beach
Argentina
Dec 5, 23:00 (GMT + 9):
Govt formalizes reimbursement elimination by decree but refunds rise
United Kingdom
Dec 5, 22:50 (GMT + 9):
IN BRIEF - Exposed: the abusive pirates trying to avoid fishing laws
Worldwide
Dec 5, 22:40 (GMT + 9):
Only 9.1 per cent women’s representation at seafood industry senior level
United States
Dec 5, 21:40 (GMT + 9):
Indigenous seafood consumption 15 times higher per capita than national averages



Lenguaje
FEATURED EVENTS
  
TOP STORIES
Pingtan adds two new jiggers to its fleet
China Global fishing company Pingtan Marine Enterprise Ltd. has completed construction on its two squid jigging vessels, which are ready to depart for their fishing designation.
Cadiz Port Authority grants sole farming centre permit
Spain The Port Authority of the Bay of Cadiz has granted the firm Epic Aqua Solea Acuicultura SL an administrative permission for the construction of the first phase of an intensive sole farming centre in El Puerto de Santa Maria.
Maersk Line strengthens growth strategy through Hamburg line acquisition
Denmark Maersk Line is to acquire German container shipping line Hamburg Süd after reaching an agreement with Oetker Group in an attempt to develop its growth strategy and increase transport volumes.
USD 36 million seafood smuggling operation discovered
China A case involving 3,000 tons of smuggled frozen seafood worth USD 36 million was discovered and several suspects are being prosecuted, as it was reported by the customs authority.
 
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