Welcome   Sponsored By
Subscribe | Register | Advertise | Newsletter | About us | Contact us
   


A shoal of fish. (Photo: Stock File)

Ocean-dwelling and freshwater fish sensitivity to climate change varies

WORLDWIDE
Tuesday, September 19, 2017, 22:00 (GMT + 9)

In the first analysis of how vulnerable the world's freshwater and marine fishes are to climate change, researchers at the University of Washington (UW) have found that sensitivity to temperature changes varied greatly between ocean-dwelling and freshwater fish.

Using physiological data to predict how fish species living in oceans and rivers will respond to warming water temperatures in different regions, the researchers reported in Nature Climate Change that marine fish in the tropics and freshwater fish in higher latitudes of the Northern Hemisphere were the most at risk when water temperatures warmed.

With years of data and relying on the fact that many fish species are taxonomically related and tend to share the same thermal limits, the researchers were able to predict the breaking-point temperature for close to 3,000 species. Regional patterns then emerged when those data were paired with climate-model data predicting temperature increases under climate change.

For example, fish in the tropical oceans are already living in water that is approaching the upper range of their tolerance, according to the researchers. They might not have much wiggle room when temperatures increase slightly. By contrast, in freshwater streams in the far north, fish are accustomed to cooler water temperatures but have much less tolerance for warming waters.

Since the effects of climate change are acutely felt in high latitudes, this doesn't bode well for fish in those streams that have a small window for survivable temperatures.

Fish will either migrate, adapt or die off as temperatures continue to warm, the researchers explained.

Given past evolutionary rates of critical thermal limits, it is unlikely that fish will be able to keep up with the rate at which temperatures are increasing, said senior author Julian Olden, a UW professor of aquatic and fishery sciences. The ability to move, then, is imperative for fish that live in the most critical areas identified in this analysis.

Dams and other infrastructure may block fish from getting where they might need to be in the future; fish ladders and other means to allow fish to circumvent these barriers could be more readily used, although the effectiveness of these structures is highly variable. And actions to restore vegetation along the edges of streams and lakes can help shade and reduce water temperature for the benefit of fish.

"Nowhere on Earth are fish spared from having to cope with climate change," Olden said in a news release from UW. "Fish have unique challenges - they either have to make rapid movements to track their temperature requirements, or they will be forced to adapt quickly." 

Source: Xinhua News


editorial@seafood.media
www.seafood.media


 Print


Click to know how to advertise in FIS
MORE NEWS
Japan
Mar 29, 18:30 (GMT + 9):
IN BRIEF - Frozen volume of salmon and trout, both lower than the previous year. Salmon coho Fall
China
Mar 29, 07:40 (GMT + 9):
Southeast Pacific Squid Index: Giant squid (dosidicus gigas)
Canada
Mar 29, 07:10 (GMT + 9):
Cooke Aquaculture Named One of Atlantic Canada’s Top Employers
Indonesia
Mar 29, 07:00 (GMT + 9):
IN BRIEF - EFishery acquihires Indonesian AI-powered IoT startup, to launch AI brand
France
Mar 29, 07:00 (GMT + 9):
Other Media | The Fishing Daily: French Minister Urges Dialogue Over UK Expansion of Marine Protected Areas
Thailand
Mar 29, 07:00 (GMT + 9):
Thai Union Collaborates to Achieve Zero Wastewater Discharge and Establish an Industry Learning Center
Russian Federation
Mar 29, 07:00 (GMT + 9):
Russia and China Combat Illegal Fishing: Electronic Certificates of Legality for Catches
United Kingdom
Mar 29, 07:00 (GMT + 9):
Brexit costs Scotland up to USD 126.09 million-a-year in lost salmon exports
French Guiana
Mar 29, 06:00 (GMT + 9):
IN BRIEF – 'The French vessel that is to come to patrol Guyana’s waters, saving the country $100M through illegal fishing, is yet to dock here'
Japan
Mar 29, 03:00 (GMT + 9):
Driftnet fishing for salmon and trout starts early. Agreement with Russia
Russian Federation
Mar 29, 01:00 (GMT + 9):
Will the Russian Far East be the country with the most snow crabs in 2025?
Viet Nam
Mar 29, 01:00 (GMT + 9):
Shrimp exports from Ecuador are facing many challenges
Japan
Mar 29, 00:50 (GMT + 9):
IN BRIEF - Faced with the Peruvian decline, fishmeal production in India and Oman is increasing rapidly
Australia
Mar 28, 21:10 (GMT + 9):
IN BRIEF - At WTO, Australia seeks details on India's fisheries plan
Croatia
Mar 28, 21:00 (GMT + 9):
IN BRIEF - Cromaris business results in 2023



Lenguaje
FEATURED EVENTS
  
TOP STORIES
Clipfish challenges in Brazil: Port bureaucracy stops millions worth
Brazil More and more clipfish containers are being stopped in Brazilian ports. - Complicated regulations make market access challenging, to say the least, say Norwegian exporters who risk large losses. Bra...
Catches in the Sea of Okhotsk and Bering Sea
Russia Fed. Situational update as of 03/24/2024 Source: Stockfile FIS Sea of Okhotsk (pollock) According to OSM data in the Sea of Okhotsk, pollock catch (industrial and coastal fisheries) as of March 24, 20...
Productive Development of the Fishing Activity
Peru Fishing Sector Bulletin - January 2024 The landing of hydrobiological resources registered a negative interannual variation of 62.7%, as a result of the lower landing of fishing resources for indirec...
NGO Sues UK Government Over International Fishing Quotas
United Kingdom Blue Marine Foundation, a charity dedicated to restoring the ocean to health, has launched legal proceedings over the government’s decision to set fishing opportunities, for more than half UK st...
 

Maruha Nichiro Corporation
Nichirei Corporation - Headquarters
Pesquera El Golfo S.A.
Ventisqueros - Productos del Mar Ventisqueros S.A
Wärtsilä Corporation - Wartsila Group Headquarters
ITOCHU Corporation - Headquarters
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. - Group Headquarters
I&J - Irvin & Johnson Holding Company (Pty) Ltd.
AquaChile S.A. - Group Headquarters
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
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
Brim ehf (formerly HB Grandi Ltd) - Headquarters
Hamburg Süd Group - (Headquearters)
Armadora Pereira S.A. - Grupo Pereira Headquarters
Costa Meeresspezialitäten GmbH & Co. KG
NOAA - National Oceanic and Atmospheric Administration (Headquarters)
Mowi ASA (formerly 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
CJ Corporation  - Group Headquarters
Greenpeace International - The Netherlands | Headquarters
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 - Headquarters
Cooke Inc. - Group Headquarters
AKBM - Aker BioMarine ASA
Seafood Choices Alliance -Headquarter-
Austevoll Seafood ASA
Walmart | Wal-Mart Stores, Inc. (Supermarket) - Headquarters
New Japan Radio Co.Ltd (JRC) -Head Office-
Gulfstream JSC
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
SeaChoice
National Geographic Society
AmazonFresh, LLC - AmazonFresh

Copyright 1995 - 2024 Seafood Media Group Ltd.| All Rights Reserved.   DISCLAIMER