HOME >> BIOLOGY >> NEWS
Changing ocean conditions led to decline in Alaska's sea lion population

A new study out of Alaska points out the impacts of climate change on marine ecosystems, and the need for increased research and stronger science based management to address future concerns.

Studies by a team of scientists at the North Pacific Universities Marine Mammal Research Consortium http://www.marinemammal.org/ revealed that a sudden ocean climate change 30 years ago changed todays Alaska marine ecosystems, and may be a leading factor in the decline of Alaskas endangered western stock of Steller sea lions.

Theories why the Steller sea lion population declined by more than 80 percent during the 1980s include pollution, commercial fishing, and subsistence harvesting. The new study points instead to a climate regime shifta natural event in the oceans climatic cyclein the late 1970s that may be responsible for current regional population of about 40,000, compared with 235,000 in the 1970s.

The publication, entitled Bottom-up forcing and the decline of Steller sea lions in Alaska: assessing the ocean climate hypothesis found that climate change affected water temperatures and ocean currents determining the abundance of available fish for the sea lions to eat. Changes in prey led to a decline in the sea lion population. Using interdisciplinary research methods was key in determining the root cause of the sea lion decline.

The need for such research is echoed in a related report: "Conserving Alaskas Oceans," prepared by Natural Resources Consultants. The report outlines 30 years of improved ocean conservation in the waters off Alaska with recommendations for future action. The report makes ten recommendations for continued improvement, including the need to address climate impacts, embrace the goals of ecosystem based fishery management, and the need to strengthen science programs to address future uncertainty.


'"/>

Contact: Andrew Trites
trites@zoology.ubc.ca
604-822-8182
Marine Conservation Alliance
22-Mar-2007


Page: 1

Related biology news :

1. Changing climate will challenge Northeast agriculture, CU expert warns
2. How the Biotech Revolution Is Changing the Way We Fight Disease
3. Changing length of days reverses how estrogen affects aggressiveness in mice
4. Overcoming Health Disparities: The Changing Landscape
5. Changing Face of Chemical Engineering Education
6. Changing ecosystems
7. 1 of deep oceans most turbulent areas has big impact on climate
8. Proteaceae spread by continental drift and transoceanic dispersal
9. Antarctic icebergs -- Hotspots of ocean life
10. Salty oceans provide early warning for climate change
11. A living memory chip, black holes on the loose, and a clearer picture of ocean currents

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/5/2020)... Fla. (PRWEB) , ... August 05, 2020 , ... Regenative ... cover two new innovations, CoreText™ and ProText™, making them the first Wharton’s jelly allografts ... defect using a syringe. The company’s solutions are the first Wharton’s jelly allograft product ...
(Date:7/22/2020)... ... July 21, 2020 , ... USDM ... technology and compliance, announces a new solution to manage regulated workloads on Microsoft ... of their technology stack complies with FDA and global regulations. USDM's new managed ...
(Date:7/10/2020)... CHICAGO (PRWEB) , ... July 09, 2020 , ... Today ... Umami Advantage, which will share insight on the “fifth taste” phenomenon that is revolutionizing ... snacks. The Umami Advantage will be live on Monday, July 13, 2020 at11:00 AM ...
Breaking Biology News(10 mins):
(Date:9/1/2020)... ... September 01, 2020 , ... ... and diagnostics companies, has announced the placement of Julianne Averill , CPA, ... for leading all financial operations and implementing key business strategies to accelerate Alveo’s ...
(Date:8/15/2020)... Ore. (PRWEB) , ... August 13, 2020 , ... ... the creation of its Scientific Advisory Board (SAB) to research the medical potential ... cannabis can be enhanced when combined with terpenes. The board is focused on expanding ...
(Date:8/12/2020)... ... August 11, 2020 , ... The FSHD ... Facioscapulohumeral Muscular Dystrophy Clinical Trial Research Network (FSHD CTRN), with consideration ... is a consortium of academic research centers in the United States and Europe ...
(Date:8/12/2020)... FARMS, Mich. (PRWEB) , ... August 12, 2020 ... ... Consulting Group, Inc. (EMMA International), a global leader in FDA compliance consulting ... of the nation’s fastest-growing private companies. The list represents a unique look at ...
Breaking Biology Technology:
Cached News: