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


Ocean acidification process. (Photo Credit: NOAA)

More acidic oceans could cause problems to squid

Click on the flag for more information about United States UNITED STATES
Thursday, June 06, 2013, 05:00 (GMT + 9)

Ocean acidification could have a drastic impact on the squid worldwide, warns a group of researchers from Woods Hole Oceanographic Institution (WHOI).

According to a new study, soon to be published in the journal Plos One, due to the ecological and commercial importance of these cephalopods, this fact could have enormous impact on the marine environment and coastal economies.

"Squid are at the center of the ocean ecosystem—nearly all animals are eating or eaten by squid," explains Aran Mooney, WHOI biologist and co-author of the study.

"So if anything happens to these guys, it has repercussions down the food chain and up the food chain," adds the expert.

Research suggests that ocean acidification and its consequences are the new pattern.

During the past 150 years, the world's oceans have been acidifying gradually, mainly due to increased concentrations of carbon dioxide (CO2) in the atmosphere.

Seawater absorbs some of the CO2 and turns it into carbonic acid and other chemical products that lower the pH of the water and makes it more acidic.

If carbon dioxide levels continue to rise, it is expected that the acidity of the oceans will rise too much, and this may affect the species that inhabit the ocean.

Mooney and Max Kaplan, lead author of the study, gathered male and female specimens of Atlantic longfin squid (Loligo pealeii) from the waters of Vineyard Sound, on the US east coast of the Atlantic in the summer of 2011, and placed them into a storage tank in WHOI Environmental Systems Laboratory.

After that squid mated and the female specimens laid their egg capsules (each can contain 200 to 300 fertilized eggs), the researchers divided the capsules between two smaller tanks installed in Vineyard Sound.

These two smaller tanks represented two environments: the ocean today, and more acidic oceans of the future.

One of them was continuously exposed to air pumped from the outside, to simulate the actual interaction of the ocean with the atmosphere, while the other received air that was enriched with higher levels of CO2, which made ell seawater almost three times more acidic.

The scientists then observed how the eggs hatched and how the squid began to develop in each of the two tanks.

Hatching time, body length, and other growth parameters were measured.

"Amazingly, we found effects or changes in all those parameters. Animals raised in high CO2 took longer to develop," stressed Mooney.

The research team, composed also by Daniel McCorkle and Anne Cohen, plans to conduct additional studies to better understand the way the squid can meet the changing ocean conditions.

The scientists also hope to observe and measure the differences in behavior in the squid that is farmed in more acidic seawater in order to better understand how the lives of cephalopods can change as the ocean around them changes.

By Analia Murias
editorial@fis.com
www.fis.com


 Print


Click to know how to advertise in FIS
MORE NEWS
Peru
Jan 29, 01:00 (GMT + 9):
IN BRIEF - Chilean and Peruvian Fishermen make negative statements about The Hague decision
Chile
Jan 29, 00:40 (GMT + 9):
Blumar executive to head up Chile-China salmon alliance
Indonesia
Jan 29, 00:20 (GMT + 9):
IN BRIEF - isheries ministry seizes 14 illegal fishing vessels
Portugal
Jan 29, 00:20 (GMT + 9):
CCMAR researchers sequence seabass genome
Iceland
Jan 29, 00:10 (GMT + 9):
IN BRIEF - HB GRANDI PENS NEW DEAL ON REVOLUTIONARY HANDLING SYSTEMS FOR NEW WETFISH TRAWLERS
United States
Jan 29, 00:00 (GMT + 9):
IN BRIEF - FTC OKs Albertsons-Safeway merger
Argentina
Jan 28, 23:40 (GMT + 9):
Productive projects to drive up aquaculture
Sri Lanka
Jan 28, 22:50 (GMT + 9):
Sea cucumber farming JV with Maldives underway
Peru
Jan 28, 21:30 (GMT + 9):
Technological innovation centre to boost aquaculture
United States
Jan 28, 03:50 (GMT + 9):
Four companies fined after tragic accident in processing plant
Spain
Jan 28, 03:20 (GMT + 9):
Anfaco presents senators the demands and challenges of the sector
Australia
Jan 28, 02:40 (GMT + 9):
Aquaculture leases approval to boost seafood production
United States
Jan 28, 02:10 (GMT + 9):
Gulf of Mexico shrimp landings show slight variation
Netherlands
Jan 28, 01:40 (GMT + 9):
IN BRIEF - Sea Shepherd to spend $12m award on 'dream ship' to patrol Southern Ocean
Chile
Jan 28, 01:30 (GMT + 9):
IN BRIEF - Angelini Group expands business soy in Brazil and commitment to growing North Salmon



Lenguaje
FEATURED EVENTS
  
TOP STORIES
NGOs applaud suspension of fish imports from Sri Lanka
European Union Fisheries Ministers of the EU agreed in Brussels to punish Sri Lanka for not fighting illegal, unreported and unregulated fishing, imposing trade restrictions upon it.
BC company buys 700,000lb of sea cucumber for Chinese market
Canada British Columbia- based aquaculture company Gourmet Ocean Products Inc. announced that it has recently bought about 400,000 pounds of mature sea cucumber.
Pangasius exporters to pay higher tariffs in the US
Viet Nam The Vietnamese tra fish exporters will face higher tariffs for their products to enter the US market.
Dutch Fund announces two 'crucial' investments in aquaculture industry
Worldwide Aqua-Spark investment fund will allocate USD 4 million for "cucial nvestments" in two new business aimed at a more sustainable, clean and healthy way of farming seafood.
 
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 (Head Office)
Inmarsat plc - Global Headquarters
Marks & Spencer
Tesco PLC (Supermarket) - Headquarters
Pescanova, S.A. - Group Headquarters
Sea Harvest Corporation (PTY) Ltd.
I&J - Irvin & Johnson Limited
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 ehf - 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-
Grupo Calvo - Luis Calvo Sanz, S.A. (Group 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 - 2015 Fish Info & Services Co.Ltd| All Rights Reserved.   DISCLAIMER