. Earth Science News .

Arctic marine mammals and fish populations on the rise
by Staff Writers
Montreal (AFP) April 23, 2012

Arctic marine mammals and fish populations are on the rise, according to a report released on Monday by the the Arctic Council's biodiversity working group at a Montreal conference.

In fact fish populations have risen dramatically, according to the findings of the Circumpolar Biodiversity Monitoring Program, the Zoological Society of London, and the World Wildlife Fund.

The three organizations collaborated on the analysis, looking at 890 populations of 323 species of Arctic vertebrates.

The Arctic wildlife population changes, they said in a statement, are linked to "Arctic climate oscillations and changes in commercial harvest" in neighboring waters.

The report identified that fish living close to the surface of the water as opposed to near the ocean bottom were most susceptible to climate change, including such commercially important species as Pacific herring, ocean perch and Arctic cisco.

Some mammals were found to be recovering from exploitation, but rising populations of gray whales, bowhead whales and Greenlandic walruses have not returned to historical levels.

Sea ice species ringed seal, beluga whale, and thick-billed guillemot, meanwhile, have declined.

As well, marine birds continued a slow and steady decline that started in the late 20th century. The report said this "may be related to changes in climate, sea ice and food availability" and may be the beginning of a longer-term decline.

The effects of Arctic warming also were not restricted to the far north. The Atlantic Ocean is experiencing a decline in vertebrates thought to be driven by Arctic climate shifts, as well as commercial fishing.

In contrast, the Pacific Ocean has experienced a dramatic increase in vertebrates, amid warmer sea temperatures.

Related Links
Beyond the Ice Age

Get Our Free Newsletters Via Email
Buy Advertising Editorial Enquiries


. Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

Scientists call for Arctic fishing moratorium, rules
Ottawa (AFP) April 21, 2012
Scientists on Monday urged Arctic rim nations to set fishing regulations for the Arctic Ocean, and order a moratorium on fishing until stocks are assessed, before trawlers soon start dropping nets in the pristine waters. "A commercial fishery in the central Arctic Ocean is now possible and feasible," said more than 2,000 scientists from 67 countries in an open letter to Canada, Denmark, Norw ... read more

European body sees broad failures in Libya migrant deaths

Helicopter transport improves trauma patient survival compared to ground transport

Desolation of Pakistan avalanche site

Lawyer to take over at Fukushima plant operator

US commission says iPhone infringes Motorola patent

Skype debuts on PlayStation Vita game handsets

Google joins 'cloud' data storage trend

Mechanical tests for SHEFEX

Planned dams in Amazon may have largely negative ecosystem impact

Bangladesh faces water problems

7,000 workers strike at Brazil's Amazon dam project

Sunlight plus lime juice makes drinking water safer

Breaking the Ice on Icebergs

Arctic marine mammals and fish populations on the rise

Arctic Ocean could be source of greenhouse gas: study

Scientists call for Arctic fishing moratorium, rules

Genetically modified corn affects its symbiotic relationship with non-target soil organisms

Global famine if India, Pakistan unleash nukes: study

Study finds evidence nanoparticles may increase plant DNA damage

Warming set to make corn prices pop

Hundreds evacuated as Russian village flooded

Rumbling Mexican volanco keeps locals awake

Kenya flash food kills one, six missing

New research puts focus on earthquake, tsunami hazard for southern California

Stench of death in Heglig, where Sudan says 1,200 died

Mali junta yet to return to barracks: groups

G.Bissau will 'defend itself' if foreign troops sent: junta

Diarra: launch of NASA scientist into Mali politics

Meat eating led to earlier weaning, helped humans spread across globe

Chimpanzee ground nests offer new insight into our ancestors descent from the trees

Genetic adaptation of fat metabolism key to development of human brain

Majority-biased learning

Memory Foam Mattress Review

Newsletters :: SpaceDaily Express :: SpaceWar Express :: TerraDaily Express :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News


The content herein, unless otherwise known to be public domain, are Copyright 1995-2012 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement