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


The four subregions of the northeast shelf large marine ecosystem. (Photo Credit: NOAA)

Warming sea temperatures drive fish stocks northward

Click on the flag for more information about United States UNITED STATES
Monday, April 29, 2013, 22:50 (GMT + 9)

Sea surface temperatures in the Northeast Shelf Large Marine Ecosystem during 2012 were the highest recorded in 150 years, according to the latest Ecosystem Advisory issued by the National Oceanic and Atmospheric Administration’s (NOAA) Northeast Fisheries Science Centre (NEFSC). These high sea surface temperatures (SSTs) are the latest in a trend of above average temperature seen during the spring and summer seasons, and part of a pattern of elevated temperatures occurring in the Northwest Atlantic, but not seen elsewhere in the ocean basin over the past century.

According to the advisory's reports on conditions in the second half of 2012, sea surface temperature for the Northeast Shelf Ecosystem reached a record high of 14 degrees Celsius (57.2 °F) in 2012, exceeding the previous record high in 1951. Average SST has typically been lower than 12.4 °C (54.3 F) over the past three decades.

Sea surface temperature in the region is based on both contemporary satellite remote-sensing data and long-term ship-board measurements, with historical SST conditions based on ship-board measurements dating back to 1854. The temperature increase in 2012 was the highest jump in temperature seen in the time series and one of only five times temperature has changed by more than 1 °C (1.8 °F).

The Northeast Shelf's warm water thermal habitat was also at a record high level during 2012, while cold water habitat was at a record low level. Early winter mixing of the water column went to extreme depths, which will impact the spring 2013 plankton bloom. Mixing redistributes nutrients and affects stratification of the water column as the bloom develops.

Temperature is also affecting distributions of fish and shellfish on the Northeast Shelf. The advisory provides data on changes in distribution, or shifts in the centre of the population, of seven key fishery species over time.

The four southern species - black sea bass, summer flounder, longfin squid and butterfish - all showed a northeastward or upshelf shift. American lobster has shifted upshelf over time but at a slower rate than the southern species. Atlantic cod and haddock have shifted downshelf.

"Many factors are involved in these shifts, including temperature, population size, and the distributions of both prey and predators," said Jon Hare, a scientist in the NEFSC's Oceanography Branch.

A number of recent studies have documented changing distributions of fish and shellfish, further supporting NEFSC work reported in 2009 that found about half of the 36 fish stocks studied in the Northwest Atlantic Ocean, many of them commercially valuable species, have been shifting northward over the past four decades.

The Northeast US Continental Shelf Large Marine Ecosystem (LME) extends from the Gulf of Maine to Cape Hatteras, North Carolina.

"Changes in ocean temperatures and the timing and strength of spring and fall plankton blooms could affect the biological clocks of many marine species, which spawn at specific times of the year based on environmental cues like water temperature," Kevin Friedland, a scientist in the NEFSC Ecosystem Assessment programme, said.

[email protected]
www.fis.com


 Print


Click to know how to advertise in FIS
MORE NEWS
Hong Kong
Mar 29, 02:50 (GMT + 9):
Two subsidiaries of Pacific Andes request to be declared bankrupt
Argentina
Mar 29, 02:10 (GMT + 9):
Shrimp assessment survey concluded
New Zealand
Mar 29, 02:10 (GMT + 9):
King Salmon requests mussel farm consent
Canada
Mar 29, 01:10 (GMT + 9):
DFO and fishermen disagree over cod fishery expansion
Canada
Mar 29, 01:00 (GMT + 9):
IN BRIEF - Fisheries union calling for 'significant' quota increases amid growth of northern cod stocks
Canada
Mar 29, 01:00 (GMT + 9):
IN BRIEF - Coalition Pushing For Aquaculture Reform
Philippines
Mar 29, 01:00 (GMT + 9):
IN BRIEF - Extreme weather hits tilapia output
Iceland
Mar 29, 00:40 (GMT + 9):
IN BRIEF - Changes planned to groundfish processing at HB Grandi
Spain
Mar 29, 00:40 (GMT + 9):
Andalusia promotes marine microalgae biorefinery development
Malta
Mar 29, 00:30 (GMT + 9):
WWF advocates for new Mediterranean fisheries management approach
Viet Nam
Mar 29, 00:00 (GMT + 9):
IN BRIEF - Mass shrimp deaths in Tra Vinh
New Zealand
Mar 29, 00:00 (GMT + 9):
IN BRIEF - King Salmon lodges consent for mussel farm in outer Pelorus Sound
Faroe Islands
Mar 29, 00:00 (GMT + 9):
IN BRIEF - BAKKAFROST: Confirmation of pathogenic ISA-virus at A-73 Hvannasund Norður
Gambia
Mar 29, 00:00 (GMT + 9):
IN BRIEF - Senegal, Gambia sign fisheries agreement
Spain
Mar 28, 23:50 (GMT + 9):
New fishing technology is 'a double-edged sword'



Lenguaje
FEATURED EVENTS
  
TOP STORIES
Shellfish industry hit by norovirus outbreak in BC oysters
Canada The outbreak of a mysterious norovirus that made hundreds of Canadians sick led to the closure of seven coastal oyster farms in British Columbia.
Tilapia sausages reach Oxaca market
Mexico To directly benefit the regional productive sector, through the University of Papaloapan, the State University System of Oaxaca supported a project that involves tilapia conservation techniques to obtain derived products.
'Coastal Niño' favours presence of mackerel, skipjack and bonito
Peru The climatic phenomenon known as the "coastal Niño" has favoured the greatest availability of some hydrobiological species of warm water, such as mackerel, skipjack, bonito, among others, according to the Ministry of Production.
Gulf of Maine scallop fishery season closed amid disputes
United States The scallop fishery season was closed in the northern Gulf of Maine after three weeks that pitted the interests of part-time, small-boat fishermen from Maine against large, full-time scallop operators.
 
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. - Headquarters
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 - 2017 Fish Info & Services Co.Ltd| All Rights Reserved.   DISCLAIMER