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


In mid August there will be another research survey to update data on the 'dead zone.' (Photo: Nancy Rabalais/LUMCON/NOAA)

This year's hypoxic zone is fourth-smallest recorded

Click on the flag for more information about United States UNITED STATES
Monday, July 30, 2012, 22:40 (GMT + 9)

National Oceanic and Atmospheric Administration- (NOAA) supported scientists have found the size of this year’s Gulf of Mexico oxygen-free ‘dead zone’ to be the fourth-smallest since mapping of the annual hypoxic, or oxygen-free area began in 1985. Measuring approximately 2,889 sqmi, the 2012 area is slightly larger than Delaware.

The survey also found a patchy distribution of hypoxia across the Gulf differing from any previously recorded. This is in stark contrast to last year, when flood conditions, carrying large amounts of nutrients, resulted in a dead zone measuring 6,770 sqmi.

The last time the dead zone was this small was in 2000 when it measured 1,696 sqmi.

“A smaller area was expected because of drought conditions and the fact that nutrient output into the Gulf this spring approached near the 80-year record low,” said Nancy Rabalais, PhD, executive director of the Louisiana Universities Marine Consortium (LUMCON), who led the survey cruise.

“What wasn’t expected was how the scattered distribution of hypoxia areas differed from any others documented in the past. Confirmed, however, is the strong relationship between the size of the hypoxic zone and the amount of fresh water and nutrients carried to the Gulf by the Mississippi River.”

The smallest recorded dead zone to date measured 15 sqmi in 1988. The largest dead zone, also called a hypoxic zone, measured to date occurred in 2002 encompassing more than 8,400 sqmi.

The average size of the dead zone over the past five years has been 5,684 sqmi, more than twice the 1,900 sqmi-goal set by the Gulf of Mexico/Mississippi River Watershed Nutrient Task Force.

Hypoxia is fuelled by nutrient runoff from agricultural and other human activities in the Mississippi River watershed, which stimulates an overgrowth of algae that sinks, decomposes and consumes most of the life-giving oxygen supply in bottom waters.

The hypoxic zone off the coast of Louisiana and Texas forms each summer and threatens valuable commercial and recreational Gulf fisheries. In 2010, the dockside value of commercial fisheries in the Gulf was USD 639 million.

Earlier this summer, NOAA-sponsored forecast models had issued conflicting forecasts for the hypoxic zone, ranging from a small 1,197 sqmi to a moderate 6,213 sqmi. The forecast of the larger zone hinged on the possibility that organic matter stored in Gulf sediments from large algal blooms during the 2011 flood would act as an additional carbon source for the development of hypoxia this year.

The small size of this year’s hypoxic zone suggests only a limited role for this “carryover effect” in hypoxia formation under the current low flow conditions.

Texas A&M will be conducting a follow-up cruise in mid-August to provide an update.

[email protected]
www.fis.com


 Print


Click to know how to advertise in FIS
MORE NEWS
United States
Jan 16, 11:30 (GMT + 9):
IN BRIEF - Bering Sea snow crab fishing underway
United Kingdom
Jan 16, 11:00 (GMT + 9):
IN BRIEF - European parliament to decide future of pulse fishing
Philippines
Jan 16, 03:00 (GMT + 9):
IN BRIEF - Scientists cite solutions to arrest alarming fisheries decline
United States
Jan 16, 03:00 (GMT + 9):
AquaBounty expects to raise USD 12 million in public offering
China
Jan 16, 02:30 (GMT + 9):
Two new Pingtnam jiggers capture squid in southwest Atlantic
United Kingdom
Jan 16, 02:00 (GMT + 9):
IN BRIEF - Marine Harvest fishes for a global ERP catch with Infor
United States
Jan 16, 02:00 (GMT + 9):
IN BRIEF - Board of Fisheries weighs proposals protecting Chinook stocks in Southeast
Argentina
Jan 16, 01:30 (GMT + 9):
Chubut and NGO sign agreement to achieve international shrimp certification
Indonesia
Jan 16, 01:20 (GMT + 9):
Fishing sector fails to reach its objectives since 2015, as association denounces
Chile
Jan 16, 01:10 (GMT + 9):
Normal to moderately cold sea conditions detected in the southeast Pacific
Viet Nam
Jan 15, 23:30 (GMT + 9):
Vietnam files a complaint to WTO against the US for anti-dumping duties
Spain
Jan 15, 23:10 (GMT + 9):
General Fisheries Commission for the Mediterranean to open subregional office in Fuengirola
Seychelles
Jan 15, 22:50 (GMT + 9):
New project seeks to refloat aquaculture in Seychelles
Ecuador
Jan 15, 21:40 (GMT + 9):
CNP warns danger of catching wild shrimp larvae
United Kingdom
Jan 13, 21:00 (GMT + 9):
IN BRIEF - Pre-takeover jump in sales for historic Aberdeen smokehouse



Lenguaje
FEATURED EVENTS
  
TOP STORIES
Brussels and UK dispute over fishing quotas
United Kingdom Brussels is preparing to face any attempt by the UK Government to renegotiate fishing quotas in British waters during the two-year transition period after Brexit.
NOAA presents new charges against Codfather
United States The National Oceanic and Atmospheric Administration presented a document in which it adds more sanctions and civil restrictions to businessman Carlos Rafael and several commercial entities related to the New Bedford executive.
Swiss government bans cooking live lobsters in boiling water
Switzerland As part of its animal protection program, the Swiss government has decided to ban the practice of cooking live lobsters in boiling water. Otherwise, it established that the crustaceans should be stunned first and then killed.
Calming message given to sector involved in EU-Morocco fisheries agreement
Spain The General Secretary of Fisheries has tried to give a message of tranquility about the situation of the EU-Morocco fishing agreement, following the warning of a legal adviser to the European Court of Justice on its possible illegality.
 
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.
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
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