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
United States
Jan 21, 02:20 (GMT + 9):
Sweden considers other measures to address the issue of American lobsters
Argentina
Jan 21, 01:30 (GMT + 9):
Squid season started earlier than usual
Cambodia
Jan 21, 01:20 (GMT + 9):
Chinese group partners with local holding company to invest in aquaculture project
Spain
Jan 21, 00:40 (GMT + 9):
Unions of Nueva Pescanova reject labour agreement proposal
Canada
Jan 20, 23:50 (GMT + 9):
IN BRIEF - Nutreco expands footprint in Canada and creates new base in US with purchase of Hi-Pro Feeds
Philippines
Jan 20, 23:50 (GMT + 9):
IN BRIEF - Alliance Select taps Malaysian partner for canned tuna production
Canada
Jan 20, 23:40 (GMT + 9):
IN BRIEF - Crawling in crustaceans: Scientists study link between warmer ocean, booming lobster population
Iceland
Jan 20, 23:40 (GMT + 9):
Drugs discovered on board Greenlandic trawler
Spain
Jan 20, 23:20 (GMT + 9):
Nueva Pescanova approves capital increase for more than EUR 300 million
European Union
Jan 20, 22:30 (GMT + 9):
Promising prospects for the economic performance of the EU fleet
Spain
Jan 20, 22:20 (GMT + 9):
Brussels validates Spanish fisheries control system
United States
Jan 20, 22:00 (GMT + 9):
IN BRIEF - FDA/EPA Fish Consumption Advice Misses The Mark
Norway
Jan 20, 22:00 (GMT + 9):
IN BRIEF - Norway Royal Salmon ASA: Mandatory notification of trade - extended TRS agreement
United States
Jan 20, 22:00 (GMT + 9):
IN BRIEF - Bryant Aquaculture Farm Moves Ahead
United Kingdom
Jan 20, 21:30 (GMT + 9):
Scottish fishermen call for fairer deal with Faroe Islands



Lenguaje
FEATURED EVENTS
  
TOP STORIES
Canarian lawmakers call for arrest of vessel transporting fish oil from Sahara
Spain The Port Authority of Las Palmas de Gran Canaria confirmed that Key Bay vessel, which docked on Saturday in the port of La Luz, is transporting fish oil from Western Sahara.
Thai Union urges the UK to commit to sustainability goals
United Kingdom In order to demonstrate its commitment to delivering the UN Sustainable Development Goals (SDGs), the Thai Union Group joined more than 80 leading companies that united in a call on the Government of the United Kingdom.
Oceanic acidification could have a strong impact on Dungeness crab
United States Acidification of the ocean will impact the West Coast seafood network, but not necessarily in the expected way.
Tanner crab season canceled in Alaska
United States The Alaska Board of Fisheries finally decided not to open commercial tanner crab (Chionoecetes bairdi and C. opilio) fishery in the Bering Sea this season, after the last attempt to allow a limited catch failed.
 
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 - 2017 Fish Info & Services Co.Ltd| All Rights Reserved.   DISCLAIMER