Welcome to FIS   Sponsored By
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
Norway
May 25, 23:10 (GMT + 9):
Norwegian salmon hikes led by supply drop and demand growth
Spain
May 25, 23:00 (GMT + 9):
ARVI hope that the delivery of FEMP funds will be unblocked
United States
May 25, 22:00 (GMT + 9):
Eating more seafood could speed up pregnancy
United Kingdom
May 25, 20:20 (GMT + 9):
New eDNA method presented to monitor aquatic diversity
Argentina
May 25, 20:00 (GMT + 9):
INIDEP recommended closing the illex squid fishery
United States
May 25, 19:50 (GMT + 9):
First squid fishery to attain MSC standard
United States
May 25, 19:50 (GMT + 9):
Invasive seaweed could affect fish behaviour
Worldwide
May 25, 19:00 (GMT + 9):
New study: the octopus could have an extraterrestrial origin?
Chile
May 25, 03:00 (GMT + 9):
Patagonian salmon price grows and scares Nordic investors
United Kingdom
May 25, 02:40 (GMT + 9):
Post Brexit fishing policy does not seem to stop fishing investments
Spain
May 25, 01:00 (GMT + 9):
Spanish oceanographic vessel starts fisheries research in the Grand Banks of Newfoundland
Norway
May 25, 00:30 (GMT + 9):
Cermaq achieves high survival rates in Q1, with less antibiotics
Taiwan
May 24, 23:40 (GMT + 9):
Taiwanese fishing industry labour abuse continue, Greenpeace claims
Chile
May 24, 23:30 (GMT + 9):
Navy makes statement on salmon dumping ruling
Norway
May 24, 22:00 (GMT + 9):
Salmon price status at week 20



Lenguaje
FEATURED EVENTS
  
TOP STORIES
Tuna plant restarts operations thanks to Chinese funding
Vanuatu A tuna fish processing plant, located on the outskirts of Port Vila, which has been inactive for over a decade, is to restart production thanks to the USD 9.01 million dollar funding from a Chinese company.
Lobster exporters fear China's retaliation for tariff implementation
United States A group of American seafood exporters are urging federal authorities not to put a tariff on Chinese products for fear of retaliation against US exports.
New MSC standard for seaweed presented
Chile An induction to the Marine Stewardship Council standard in seaweed was carried out in dependencies of Chinquihue Foundation, in Puerto Montt, at the request of the Undersecretariat of Fisheries and Aquaculture.
MSC deems Mexico is Latin America leader in fisheries sustainability
Mexico The work carried out by Mexico in terms of sustainability for more than 10 years has been reflected in the fact that some of its fisheries, in terms of volume, are certified as sustainable by the Marine Stewardship Council.
 
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