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


Genetic identification of tambaqui. (Photo: Sebrae/RO)

Warnings of fish potential genetic changes and extinction in the Amazon

Click on the flag for more information about Brazil BRAZIL
Monday, April 09, 2012, 00:30 (GMT + 9)

The increased concentration of carbon dioxide (CO2) in the water interferes with fish growth and development in the Amazon basin, an expert in animal physiology stated.

One of the main consequences of these changes is the reduction in the size of fish, up to one third of its average size.

Marise Margareth Sakuragui a specialist, as well as the researchers Alzira Oliveira and Vera Almeida, who are also studying the growth of tambaqui (Colossoma macropomum), argue that the changes may begin to be observed in the coming years.

"When the water pH is altered, the food supply and the development of fish are harmed," Sakuragui explains.

"Younger fish may adjust but their growth will be impaired. They will not be healthy fish but they will be like 'malnourished children.'"

Increased water temperature and the lack of oxygen can make fish be less resistant to disease and to changes in their habitat, and this, in Sakuragui’s view, can cause the extinction of several species.

"We expect changes in the composition of fatty acids and other biochemical changes. Changes may occur, and, according to our research, in fact they are going to take place," Oliveira assured.

Meanwhile, Almeida argues that the changes can have disastrous effects on the lives of coastal communities.

"They will be affected negatively as a result of the reduction in the supply of protein of this species," he warns.

Tambaqui, like pirarucu or paiche (Arapaima gigas), are resistant resources and are really adaptable to climate and habitat changes but other species are more susceptible to these changes.

"The climate is changing and we feel that year after year. If we do not act now, with the reduction of deforestation, in 10 years we will have a different world not only in Amazon but also around the world," warns Sakuragui, according to D24AM.

The researchers participated in a workshop organized by the National Institute of Science and Technology (INCT) at the National Institute of Amazon Research (INPA).

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

 


 Print


Click to know how to advertise in FIS
MORE NEWS
United States
Jul 4, 04:20 (GMT + 9):
IN BRIEF - Commission denies Barham authority to open white-shrimp season
India
Jul 4, 04:20 (GMT + 9):
IN BRIEF - Black tiger shrimp to become the new vannamei
United States
Jul 4, 04:20 (GMT + 9):
IN BRIEF - Louisiana to receive several billion dollars as part of massive BP oil spill settlement with Gulf states
Thailand
Jul 4, 04:20 (GMT + 9):
IN BRIEF - No big impact from moored fishing boats
United States
Jul 4, 04:20 (GMT + 9):
IN BRIEF - La. shrimpers, environmentalists applaud new law
India
Jul 3, 23:50 (GMT + 9):
Seafood exports reach historic record
Mexico
Jul 3, 23:40 (GMT + 9):
Fisheries and aquaculture byproducts become an alternative to feed snappers
Spain
Jul 3, 23:10 (GMT + 9):
Red tide negatively affects mussel supply in Galicia
European Union
Jul 3, 22:50 (GMT + 9):
EU increases minimum size limit for northern sea bass
Chile
Jul 3, 22:20 (GMT + 9):
Blumar does not forecast significant financial impact due to ISA virus
Norway
Jul 3, 21:20 (GMT + 9):
Salmon price status at week 27
European Union
Jul 3, 04:00 (GMT + 9):
Supplementing salmon populations may worsen their decline
United States
Jul 3, 03:30 (GMT + 9):
IN BRIEF - Seafood exporters seek aquaculture master plan
United States
Jul 3, 03:30 (GMT + 9):
IN BRIEF - Marine salmon fishing expands to many areas of Puget Sound and Strait
Ecuador
Jul 3, 03:30 (GMT + 9):
IATTC rejects fishing quota increase to three countries



Lenguaje
FEATURED EVENTS
  
TOP STORIES
Report highlights tuna industry efforts, but also inaction in some fisheries
Worldwide In its latest annual report, ISSF outlines progress and achievements for tuna sustainability in 2014 and lays out the various needs for continuous improvement of global tuna fisheries through collaboration and advocacy.
Supplementing salmon populations may worsen their decline
European Union Supplementing declining salmon populations with fish from other genetically distinct populations may not be the best method of conservation, according to a recent European study.
Tesco's sales fall while Aldi and Lidl consolidate
United Kingdom Britain's biggest supermarket chain Tesco reported a fall in sales amounting to 1.3 per cent in its first quarter, lower than expected, whereas Morrisons, Aldi and Lidl achieved growth in their sales.
Seafood exports reach historic record
India Seafood product exports during the financial year 2014-2015 reached an all-time high of USD 5,511 million, boosted by favourable international market conditions.
 
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-
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