Welcome to FIS   Sponsored By
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
[email protected]
www.fis.com


 Print


Click to know how to advertise in FIS
MORE NEWS
Norway
Oct 21, 02:30 (GMT + 9):
Haddock quality improves with live storage
United States
Oct 21, 01:50 (GMT + 9):
Walleye could open new aquaculture opportunities at Wisconsin
Spain
Oct 21, 01:40 (GMT + 9):
Galicia and Cape Verde strengthen collaboration on fisheries
United States
Oct 21, 00:20 (GMT + 9):
Live cam could show real Atlantic cod status
United Kingdom
Oct 21, 00:10 (GMT + 9):
Marine Harvest loses 125,000 salmon in Scotland due to disease outbreak
Chile
Oct 20, 23:50 (GMT + 9):
Precautionary closure of wellboat sinking zone ordered in Chiloé
United States
Oct 20, 22:40 (GMT + 9):
ARS researchers develop strep-resistant tilapia
United States
Oct 20, 22:20 (GMT + 9):
IN BRIEF - Salmon sex linked to geological change
Spain
Oct 20, 22:20 (GMT + 9):
Trawling modifies predator-prey relationships
New Zealand
Oct 20, 22:00 (GMT + 9):
IN BRIEF - Study predicts changes in marine ecosystems
Australia
Oct 20, 22:00 (GMT + 9):
IN BRIEF - Queensland to introduce mandatory GPS trackers for commercial fishermen to track sustainable catch
China
Oct 20, 22:00 (GMT + 9):
IN BRIEF - Asia's largest deep-water cage farming base in Hainan
Australia
Oct 20, 22:00 (GMT + 9):
IN BRIEF - Tasmanian seafood production approaches AUD 1 billion
United States
Oct 20, 21:40 (GMT + 9):
Miami offers ideal conditions to produce salmon at large scale
United States
Oct 20, 03:00 (GMT + 9):
IN BRIEF - Shrimp Task Force supports dredging over diversions



Lenguaje
FEATURED EVENTS
  
TOP STORIES
South Pacific RFMO highlights improved horse mackerel biomass
Chile The Undersecretariat of Fisheries and Aquaculture described the announcement of the South Pacific Regional Fisheries Management Organisation on the horse mackerel status as good news.
Haddock quality improves with live storage
Norway Nofima researchers have concluded that if the haddock is caught alive and kept in tanks up to slaughter, high quality products may be produced with all the capture.
WTO panel rules against South Korean ban on Japanese seafood imports
Switzerland South Korea is considering appealing the World Trade Organization panel ruling in favour of Japan over its import restrictions on Japanese seafood after the 2011 Fukushima nuclear disaster.
Over 400 fisheries participate now in MSC program
United Kingdom The Marine Stewardship Council is celebrating its 20th anniversary by releasing a special edition of its Annual Report, showing that more than 400 fisheries, landing 14 per cent of global marine catch by volume, are now engaged in its program.
 
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 - 2017 Fish Info & Services Co.Ltd| All Rights Reserved.   DISCLAIMER