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


Climate change scenarios affected tiny marine crustaceans called copepods. (Photo: abdn.ac.uk)

Ocean acidification modifies climate change impact on fisheries: study

Click on the flag for more information about Canada CANADA
Thursday, February 23, 2012, 15:30 (GMT + 9)

New projections show that climate change will not benefit nations in cooler waters with richer fisheries and greater biodiversity as previously thought. Instead, when taking into account ocean acidification and deoxygenation, some regions may see lower catch potential by 2050, according to research released this week by University of British Columbia (UBC) researchers.

Previous projections suggested that the effects of warmer water temperature would lead to fish moving toward the poles and cooler waters, resulting in an increase of fish catch potential of as much as 30 per cent in the North Atlantic by 2050.

But new projections that add in the impact of de-oxygenation and ocean acidification show that some regions may see a 20-35 per cent cut in maximum catch potential by 2050 (relative to 2005) depending on the individual species’ sensitivity to ocean acidification.

"What we find is that if we just look at warming, the animals will shift their distribution, because for fish and for some of the shellfish, they like to live in a certain temperature of the water, and if water gets warmer, they will very likely move to a higher latitude or move north, so that they can find cooler water to live," said William Cheung, an assistant professor in UBC’s Fisheries Centre, who presented his research at the Annual Meeting of the American Association for the Advancement of Science (AAAS) in Vancouver.

However, when considering acidification and de-oxygenation, the increase in fisheries catch potential turns to a decrease of 15 per cent, the researchers wrote.

“Loser” regions closer to the equator could become poorer due to scanter resources and need better strategies to alleviate potential food security issues.

Climate change and the related physical and chemical changes in the ocean lead to lower levels of oxygen in the water in some regions. In addition, approximately one-third of the carbon dioxide that humans produce by burning fossil fuels is being absorbed by the oceans and gradually causing them to become more acidic.

"There is a study that shows that more acidic water may affect animals that form shells, specifically, for example, the mussels or the oysters, which form shells when they grow," Cheung explained, NEWS1130 reports.

Cheung believes rebuilding global fisheries could boost the capacity of marine species to cope with the destructive impacts of climate change and ocean acidification.

This will require efforts including curbing overfishing and reducing carbon dioxide emissions, added Cheung.

Separately, research conducted by the University of Aberdeen and Marine Scotland Science stresses that conducting an experiment only once can breed unreliable results. Scientists examined how different climate change scenarios affected tiny marine crustaceans called copepods.

While the first study showed that future global warming and ocean acidification scenarios would lead to a major decline in the number of copepod eggs that successfully hatch, the second study run a week later found that the effect of global warming depends on water temperature and when the eggs were collected, explicated Dr Daniel Mayor, an Independent Research Fellow at the University of Aberdeen’s Oceanlab.

Related article:

-
Corals and molluscs proved to weaken due to ocean acidification

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


 Print


Click to know how to advertise in FIS
MORE NEWS
United Kingdom
Jun 25, 05:00 (GMT + 9):
IN BRIEF - SFF comment on referendum vote to leave the EU
United States
Jun 25, 05:00 (GMT + 9):
IN BRIEF - Personal care products cause damage to Coral Reefs
European Union
Jun 25, 05:00 (GMT + 9):
IN BRIEF - WWF: Brexit brings risks for UK environment and leaves EU weaker
Viet Nam
Jun 25, 05:00 (GMT + 9):
IN BRIEF - Facility allegedly responsible for farm-raised fish deaths in southern Vietnam
United States
Jun 25, 05:00 (GMT + 9):
IN BRIEF - Renowned Marine Biologist Asha de Vos Joins Oceana
India
Jun 25, 04:00 (GMT + 9):
IN BRIEF - Illegal fishing, land grabbing by outsiders add to Tamil fishermen's woes
Myanmar
Jun 25, 04:00 (GMT + 9):
IN BRIEF - Fish farming rules needed to protect biodiversity
Canada
Jun 25, 04:00 (GMT + 9):
IN BRIEF - LeBlanc: LIFO northern shrimp decision coming soon
Netherlands
Jun 25, 02:30 (GMT + 9):
First ambitious ocean-cleansing project presented
Spain
Jun 25, 02:20 (GMT + 9):
Grant regulation approved for market development and seafood promotion campaigns
United Kingdom
Jun 25, 01:20 (GMT + 9):
Brexit victory causes bitter-sweet reactions
European Union
Jun 24, 23:50 (GMT + 9):
EP adopts Baltic pluriannual fisheries plan
Chile
Jun 24, 23:50 (GMT + 9):
Electronic certification for salmon exports to Russia enters final stage
United States
Jun 24, 23:40 (GMT + 9):
Shellfish contagious cancer spread discovered
Australia
Jun 24, 22:40 (GMT + 9):
MSC certifies first recreational and commercial fishery worldwide



Lenguaje
FEATURED EVENTS
  
TOP STORIES
First ambitious ocean-cleansing project presented
Netherlands At a port in The Hague, Dutch environment minister has launched the biggest prototype clean-up boom in an attempt to clear the Pacific of its plastic debris.
Good shrimp landings in May but with low prices
United States The latest statistics on shrimp landings in the Gulf of Mexico published by NOAA indicate that in May 10.3 million pounds of the crustacean were landed, 26.9 per cent below the prior fourteen-year historical average.
'Peru is no longer a reliable supplier of fishmeal and fish oil'
Peru At the level of marine ingredients, Peru has lost leadership in fishmeal production, according to the president of the National Fisheries Society.
Shellfish contagious cancer spread discovered
United States A new study suggests that direct transmission of cancer among some marine animals may be more common than once thought.
 
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