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


Two commensal amphipods on a sponge stem in the Mariana Trench. (Photo: NOAA Office of Exploration and Research)

High levels of pollutants found in the deepest parts of the ocean

WORLDWIDE
Tuesday, February 14, 2017, 23:50 (GMT + 9)

“Extraordinary” high levels of toxic pollution have been discovered in the most remote and inaccessible place on the planet – the 10km deep Mariana trench in the Pacific Ocean.

By using a robotic submarine, scientist could capture small crustaceans that live in the pitch-black waters of the trench, which were contaminated with 50 times more toxic chemicals than crabs that survive in heavily polluted rivers in China.

"Pollutants were there in every single sample, regardless of depth, regardless of species," lead author Alan Jamieson, of Newcastle University in the UK, said.

The team of researchers verified that tiny crustaceans, such as yellowish Hirondellea gigas living in darkness about 10,000 meters down in the Pacific Ocean, were found to be polluted by PCBs, used in electric transformers or paints, and PBDE chemicals used as flame retardants, Reuters reported.

These industrial chemicals were banned in the late 1970s and do not break down in the environment, therefore, they are known as persistent organic pollutants (POPs).

These substances have previously been found at high levels in Inuit people (inhabitants of the Arctic regions) in the Canadian Arctic and in killer whales and dolphins in Western Europe.

The results of the research, published in the journal Nature Ecology and Evolution, suggests that the POPs infiltrate the deepest parts of the oceans as dead animals and particles of plastic fall downwards.

POPs accumulate in fat and are therefore concentrated in creatures up the food chain. They are also water-repellent and so stick to plastic waste.

Jamieson explained that although it was somehow expected that some POPs would be found in the deepest parts of the oceans, as when they sink there, it is impossible for them to move, the surprise was the extraordinary high levels of contamination.

[email protected]
www.fis.com


 Print


Click to know how to advertise in FIS
MORE NEWS
Qatar
Sep 19, 22:20 (GMT + 9):
Bahrain accused of escalating diplomatic Gulf dispute
Worldwide
Sep 19, 22:00 (GMT + 9):
Ocean-dwelling and freshwater fish sensitivity to climate change varies
Falkland Islands
Sep 19, 21:40 (GMT + 9):
Falklands mint coin to celebrate 30 years of Department of Fisheries
Zimbabwe
Sep 19, 21:30 (GMT + 9):
Illegal hunters deemed to have caused most veld fires
Spain
Sep 19, 02:50 (GMT + 9):
Spanish Gov should be responsible for quotas required by the Galician fleet
United Kingdom
Sep 19, 02:30 (GMT + 9):
Novel technique used to boost salmon spawning routes
Worldwide
Sep 19, 02:20 (GMT + 9):
New study shows fish rich diets may increase mercury toxic levels in women
Spain
Sep 19, 02:00 (GMT + 9):
Galician fleet aims to improve hake quota in Mauritania fishing grounds
Argentina
Sep 19, 00:00 (GMT + 9):
'Pirate' fishing vessels strengthen pressure on giant squid and shrimp in the South
United States
Sep 19, 00:00 (GMT + 9):
Growing shellfish to help save the bay and a seafood trade deficit
Norway
Sep 18, 23:30 (GMT + 9):
Aquaculture’s effect on wild marine fish reviewed
Spain
Sep 18, 22:00 (GMT + 9):
Fisheries Department to implement quota allocation per boat in sardine plan
Worldwide
Sep 18, 21:50 (GMT + 9):
Research report explores canned salmon market for forecast period 2016 – 2024
United States
Sep 18, 21:40 (GMT + 9):
Alaska’s salmon catch exceeds the forecast by 9 million
United Kingdom
Sep 18, 21:30 (GMT + 9):
Atlantic salmon production drops 5.2 pct in Scotland in 2016



Lenguaje
FEATURED EVENTS
  
TOP STORIES
Police & Sea Shepherd raid shark Chinese fishing fleet of 15 vessels
East Timor A joint operation conducted on September 9 by the marine conservation group Sea Shepherd Global and the East Timor National Police resulted in the capture of the Hong Long Fisheries / Pingtan Marine Enterprises fishing fleet at anchor off the coast of Com, East Timor.
On The Hook: UK supermarkets caught in 'unsustainable tuna scandal'
United Kingdom The campaign On The Hook, with Hugh Fearnley-Whittingstall, global retailers, academics, MPs, and charities is exposing Tesco, Asda and Morrison’s, for selling “unsustainable tuna&rdq...
Peru trade deal could expand to include seafood
China China is expected to open its market soon for seafood imports from Peru amid the two countries' joint efforts to upgrade their free trade agreement in line with the consensus reached by their leaders, said the Peruvian ambassador to China.
Small-scale fisheries have big impact on oceans
Philippines A new UBC study has found that small-scale fisheries may have a much larger impact on ocean ecosystems than previously thought, due to a lack of data on their development over time.
 
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+Co.KG (Head Office)
Inmarsat plc - Global Headquarters
Marks & Spencer
Tesco PLC (Supermarket) - Headquarters
Sea Harvest Corporation (PTY) Ltd.
I&J - Irvin & Johnson Holding Company (Pty) Ltd.
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 - 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. - Headquarters
Friosur S.A. - Headquarters
Cargill, Incorporated - Global Headquarters
Benihana Inc.
Leardini Pescados Ltda
Mitsubishi Corporation Marine Products Depts. D.Team
CJ Corporation  - Group Headquarters
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 - 2017 Fish Info & Services Co.Ltd| All Rights Reserved.   DISCLAIMER