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


Ocean acidification. (Photo Credit: UK Ocean Acidification Research Programme Knowledge Exchange Office)

Acidic oceans will transform ecosystems

WORLDWIDE
Wednesday, July 10, 2013, 00:30 (GMT + 9)

Ocean acidification may create an impact similar to extinction on marine ecosystems, according to a study released today by the University of California, Davis.

The study, published online in the journal Proceedings of the National Academy of Sciences, found that ocean acidification can degrade not only individual species, as past studies have shown, but entire ecosystems. This results in a homogenized marine community, dominated by fewer plants and animals.

"The background, low-grade stress caused by ocean acidification can cause a whole shift in the ecosystem so that everything is dominated by the same plants, which tend to be turf algae," said lead author Kristy Kroeker, a postdoctoral researcher at the Bodega Marine Laboratory at UC Davis.

"In most ecosystems, there are lots of different colourful patches of plants and animals -- of algae, of sponges, of anemones," Kroeker said. "With ocean acidification, you lose that patchiness. We call it a loss of functional diversity; everything looks the same."

In the waters surrounding Castello Aragonese, a 14th century castle off the coast of Italy, volcanic vents naturally release bubbles of carbon dioxide gas, creating different levels of acidity among the marine-animal and plant communities there. These gradients of acidity gave the scientists a glimpse of what a future marked by increasingly acidic ocean waters could look like, and how the creatures and plants living in those environments may react to it.

The researchers selected three reef zones--of low, high and extremely high acidity, representing world ocean conditions for the present day, 2100 and 2500, respectively. Then they removed animals and vegetation from the rocks there. Every few months for three years, Kroeker dived to the study plots to photograph them and watch how the plots in each zone recovered.

By examining how recovery differed among zones, the study found that acidic water reduced the number and variety of species. In the non-acidic plots, many different plants and animals, including turf algae, would colonize and grow. Calcareous species, such as sea urchins and snails, would then eat them, allowing for variety through time.

However, in both the high and extremely high acidic plots, fleshy turf algae increased steadily and overtook the zones, as the urchins and other grazers were either not present or did not graze on the algae while in these zones.

Calcareous grazers play key roles in maintaining the balance within marine ecosystems. They are also considered among the most vulnerable species to ocean acidification.

"Our research is showing that if the role of these grazers changes with ocean acidification, you might expect to see cascading effects of the whole ecosystem," Kroeker said. "If the pattern holds for other calcareous grazers, this has implications for other ecosystems, as well."

[email protected]
www.fis.com


 Print


Click to know how to advertise in FIS
MORE NEWS
Norway
Oct 26, 16:30 (GMT + 9):
The course of pelagic fishing week 43
France
Oct 26, 15:00 (GMT + 9):
Macron lays ground for netting Brexit compromise on fisheries
Canada
Oct 26, 15:00 (GMT + 9):
Yukon legislature passes motion to support Mi’kmaw fishery
United States
Oct 26, 09:00 (GMT + 9):
Alaska scientists doing first studies on Ocean Acidification impacts to salmon, following research done out of state
Colombia
Oct 26, 06:00 (GMT + 9):
The Goliath grouper (Epinephelus itajara) reproduction cycle has been closed in Cartagena waters
Japan
Oct 26, 00:00 (GMT + 9):
Statistics │ Import Food products from the world │ 2014-20
Japan
Oct 26, 00:00 (GMT + 9):
Statistics │ Imports by Origin│ Fish and Shellfish - Meat │ September 2020
Japan
Oct 26, 00:00 (GMT + 9):
Statistics │ Annual imports │ Seafood - Meat │ 2000/20
United States
Oct 25, 23:00 (GMT + 9):
Coast Guard saves sinking fishing vessel near Icy Bay, Alaska
Japan
Oct 25, 00:00 (GMT + 9):
Seafood entry | Tokyo Central Fish Market (Toyosu, Adachi, Ota) | week 42
Japan
Oct 25, 00:00 (GMT + 9):
Volumes and Prices │ Pollock roes (Tarako & Mentaiko)│ Tokyo Central Fish Market │ September-2020
Japan
Oct 25, 00:00 (GMT + 9):
Volumes and Prices │ Crabs │ Tokyo Central Fish Market │ September-2020
Peru
Oct 24, 00:10 (GMT + 9):
Anchovy fishing: they plan to start the second season at the beginning of November
European Union
Oct 23, 16:10 (GMT + 9):
The Briefing: Fishing is the latest issue to get caught up in Brexit’s net
Japan
Oct 23, 12:00 (GMT + 9):
Volume and prices │ Sendai Central Market │ September 2020



Lenguaje
FEATURED EVENTS
  
TOP STORIES
The Briefing: Fishing is the latest issue to get caught up in Brexit’s net
European Union The following is an excerpt from an article published by EuroNews: Our door remains open, no our door is open. Welcome to diplomacy in 2020; both sides in the Brexit drama have essentially ended u...
Statistics │ Exports │ Marine products │ September-2020
Norway Source: FIS.com | Click to enlarge it     [email protected] www.fis.com...
South Georgia and the South Sandwich Islands (GSGSSI) Annual Stakeholder Meeting
South Georgia & South Sandwich Is. The GSGSSI Annual Stakeholder Meeting took place on the 24th September with attendees joining virtually. Her Majesty’s Commissioner Nigel Phillips CBE, Speech to Stakeholders is given below. Th...
COVID-19 crisis: 440 foreign fishermen in isolation, 110 are due to work on Sealord boats
New Zealand Country’s biggest daily toll since spring linked to Russian and Ukrainian crew on flight WELLINGTON - A number of fishing crew who flew into New Zealand on chartered planes have the coronavirus. ...
 
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. - Group Headquarters
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 - 2020 Fish Info & Services Co.Ltd| All Rights Reserved.   DISCLAIMER