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


Bacterial bloom south of Fiji formed by cyanobacteria often found in tropical waters. (Photo Credit: NASA Earth Observatory)

Important bacteria strains could be lost due to climate change

WORLDWIDE
Friday, July 05, 2013, 02:10 (GMT + 9)

Climate change may be weeding out the bacteria that form the base of the ocean's food chain, selecting certain strains for survival, according to a new study.

In climate change, as in everything, there are winners and losers. As atmospheric carbon dioxide levels and temperature rise globally, scientists increasingly want to know which organisms will thrive and which will perish in the environment of tomorrow.

The answer to this question for nitrogen-fixing cyanobacteria (bacteria that obtain energy through photosynthesis, or "blue-green algae") turns out to have implications for every living thing in the ocean. Nitrogen-fixing is when certain special organisms like cyanobacteria convert inert – and therefore unusable – nitrogen gas from the air into a reactive form that the majority of other living beings need to survive. Without nitrogen fixers, life in the ocean could not survive for long.

"Our findings show that CO2 has the potential to control the biodiversity of these keystone organisms in ocean biology, and our fossil fuel emissions are probably responsible for changing the types of nitrogen fixers that are growing in the ocean," said David Hutchins, professor of marine environmental biology at the USC Dornsife College of Letters, Arts and Sciences and lead author of an article about this research that appeared in Nature Geoscience this week.

"This may have all kinds of ramifications for changes in ocean food chains and productivity, even potentially for resources we harvest from the ocean such as fisheries production," Hutchins said.

Hutchins and his team studied two major groups of nitrogen-fixing cyanobacteria: Trichodesmium, which forms large floating colonies big enough to see with the naked eye and makes vast "blooms" in the open ocean, and Crocosphaera, which is also very abundant but is a single-celled, microscopic organism.

Previous research showed that these two types of cyanobacteria should be some of the biggest "winners" of climate change, thriving in high CO2 levels and warmer oceans. However, those previous studies only examined one or two strains of the organisms.

That's where USC's unique resource comes into play – the university is home to a massive culture library of strains and species of the organisms assembled by USC Associate Professor Eric Webb.

Using the culture library, the team was able to show that some strains grow better at CO2 levels not seen since the start of the Industrial Revolution, while others will thrive in the future "greenhouse" Earth.

"It's not that climate change will wipe out all nitrogen fixers; we've shown that there's redundancy in nature's system. Rather, increasing atmospheric carbon dioxide changes specifically which nitrogen fixers are likely to thrive," Hutchins said. "And we're not entirely certain how that will change the ocean of tomorrow."

[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