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


Click to know how to advertise in FIS
Viet Nam
Oct 27, 03:30 (GMT + 9):
Vietnamese seafood exports forecast to exceed USD 7b this year
Oct 27, 02:50 (GMT + 9):
Anchovy second season could begin in November
United States
Oct 27, 02:40 (GMT + 9):
NGO warns Trans-Pacific deal increases seafood trade risks
United States
Oct 27, 01:50 (GMT + 9):
Cargill launches 'revolutionary' shrimp feed
Oct 27, 01:00 (GMT + 9):
Nueva Pescanova R&D centre to position Galicia as world aquaculture leader
United Kingdom
Oct 27, 01:00 (GMT + 9):
GBP 4.1 million funding granted to Scottish fishing sector
United States
Oct 27, 00:00 (GMT + 9):
IN BRIEF - SE legislators seek inclusion in pink salmon disaster request
United States
Oct 27, 00:00 (GMT + 9):
IN BRIEF - An Upside to Hurricane Matthew: Bigger Shrimp Being Caught
Oct 27, 00:00 (GMT + 9):
IN BRIEF - Cuba’s Fish Farming Industry Seeks to Double Output by 2030
United Kingdom
Oct 26, 23:50 (GMT + 9):
Brexit talks renew Scottish Fishermen's Federation’s hopes
Oct 26, 23:10 (GMT + 9):
Artisanal fishermen stage demonstrations against Fisheries Act
Oct 26, 23:00 (GMT + 9):
Conservation group declines Grieg’s salmon project
Oct 26, 21:40 (GMT + 9):
New controls on canned tuna processors
Oct 26, 03:20 (GMT + 9):
Action Plan to mass mortalities at salmon farming industry
Viet Nam
Oct 26, 02:50 (GMT + 9):
Consumer group inspected after controversial fish sauce quality

Shrimp exports maintain a growing trend
Viet Nam Vietnamese shrimp exports maintained a growing trend thanks to the stable demand from major markets and to the global shrimp price also on the rise amid the decline in the global supply of the resource.
Galicia and Cape Verde strengthen fisheries ties
Spain The Undersecretariat of Marine Affairs of Galicia and the Government of Cape Verde pledged to strengthen commercial and fisheries ties.
Thai Union nominated for 2016 'Stop Slavery Award'
Thailand Thai Union has been nominated for Thomson Reuters Foundation's inaugural Stop Slavery Award in recognition to its efforts to ensure that those working in the industry at large are also protected.
Climate change may make fish swim towards predators
United Kingdom Marine biologists at the University of Exeter have concluded that climate change is disrupting the sensory systems of fish and can even make them swim towards predators, instead of away from them.
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
National Geographic Society
AmazonFresh, LLC - AmazonFresh

Copyright 1995 - 2016 Fish Info & Services Co.Ltd| All Rights Reserved.   DISCLAIMER