Navigation Links
Ocean warming causes elephant seals to dive deeper
Date:2/9/2012

Global warming is having an effect on the dive behaviour and search for food of southern elephant seals. Researchers from the Alfred Wegener Institute for Polar and Marine Research in the Helmholtz Association cooperating in a joint study with biologists and oceanographers from the Universities of Pretoria and Cape Town have discovered that the seals dive deeper for food when in warmer water. The scientists attribute this behaviour to the migration of prey to greater depths and now wish to check this theory using a new sensor which registers the feeding of the animals below water.

The southern elephant seals from Marion Island, located in the south western part of the Indian Ocean, are extreme divers in the truest sense of the word. The animals spend more than 65 per cent of their lives in depths of over 100 metres, diving far deeper than their fellow species in southern areas. The maximum dive depth of these seals is over 2000 metres. However, the water masses through which the elephant seals from Marion Island swim in search of food are becoming increasingly warmer due to climate change and are forcing the animals to dive deeper. The Southern Ocean is warmed primarily in the water levels up to a depth of 1000 metres and therefore in those areas in which squid and fish ought to be found. "This prey is moving down to greater depths presumably due to the increasing water temperatures and this is forcing the seals to follow them", explains Dr. Horst Bornemann from the Alfred Wegener Institute.

Over the course of several years he and his colleague Dr. Joachim Pltz together with Dr. Trevor McIntyre and other seal researchers from the Mammal Research Institute (MRI) in South Africa have fitted over 30 elephant seals with satellite transmitters. These transmitters, the size of a fist, are attached to the head of the seals using artificial resin immediately after moulting and measure the dive depth, water temperature and salinity every time the a
'/>"/>

Contact: Sina Lschke
medien@awi.de
49-047-148-312-008
Helmholtz Association of German Research Centres
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Diatom genome helps explain success in trapping excess carbon in oceans
2. NOAA and NSF commission national study of ocean acidification
3. Coral reefs found growing in cold, deep ocean
4. Ecologists use oceanographic data to predict future climate change
5. Mysterious microbe may play important role in ocean ecology
6. Mysterious microbe plays important role in ocean ecology
7. Uncovering secrets of life in the ocean
8. Europe cores in EUROCORES: Ocean drilling in EuroMARC
9. Ocean growing more acidic faster than once thought
10. Ocean acidification from CO2 emissions will cause physiological impairment to jumbo squid
11. Ocean fish farming harms wild fish, study says
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/27/2014)... University of Utah biologist agan Sekercioglu, who campaigns to ... nation,s highest science prize, which is similar to the ... five researchers picked for 2014 the top awards by ... Three researchers won the Science Award and two ... equivalent to the Science Award but for scientists who ...
(Date:8/27/2014)... entering what is described by the Volunteer Wildfire Services ... Eastern Cape provincial government warned residents in certain parts ... and veld fires. A high veld fire danger ... the coast in the Great Kei and Mnquma area. ... during thunderstorms. The thunderstorms bring lightning strikes and ...
(Date:8/27/2014)... is available in German . ... the most common inherited disease affecting the peripheral nervous ... Max Planck Institute of Experimental Medicine and University Medical ... cells is impaired in rats with the disease. These ... known as myelin, which facilitates the rapid transfer of ...
Breaking Biology News(10 mins):University of Utah biologist wins Turkey's top science prize 2Potential therapy for incurable Charcot-Marie-Tooth disease 2
... advice twice is enough for patients to get the significant ... by doctors at St. Michael,s Hospital and the University of ... take their health into their own hands," said Dr. David ... the hospital,s Risk Factor Modification Centre. Dr. Jenkins is also ...
... same University of Washington researcher who used chemical sleuthing ... turned her attention to the scented air wafting from ... the journal Air Quality, Atmosphere and Health, ... scented liquid laundry detergent and scented dryer sheet contains ...
... M M E D I A T E ... Medicine Journal Stem cells derived from human amniotic fluid hold ... Tampa, Fla. (Aug. 24, 2011) Two papers published ... on-line at http://www.ingentaconnect.com/content/cog/ct/ , highlight the rich source of stem cells ...
Cached Biology News:No need to nag: study finds doctors' nutrition advice hits home early 2Scented laundry products emit hazardous chemicals through dryer vents 2Stem cells derived from human amniotic fluid hold promise 2Stem cells derived from human amniotic fluid hold promise 3
(Date:8/27/2014)... 2014 Green & Grow Inc. (GGI) ... funding and secured Otter Capital as a significant new ... commercialization of GGI’s Agriplier™ technology, building on recent compelling ... “Since our first meeting, we have been impressed with ... space,” said Alan Sobba, President and CEO of GGI. ...
(Date:8/27/2014)... 2014 In 2013, Lawrence ... Livermore National Security LLC (LLNS), was awarded ... a state-of-the-art laser system for the European Union's ... construction in the Czech Republic. , When commissioned ... called the " High repetition-rate Advanced Petawatt Laser ...
(Date:8/27/2014)... , Aug. 27, 2014   MSC , a ... safety, today announced the appointment of Mary Beth ... With 28 years of experience preparing companies for rapid ... as Executive Vice President of Corporate Development and Healthcare. ... improvement business , as well as corporate strategy and ...
(Date:8/27/2014)... 2014 The Global and China Trifluoroacetic ... the current state of the Trifluoroacetic Acid industry in ... overview of the industry, including definitions, applications and industry ... analysis are provided with a focus on history, developments, ... between the international and Chinese situation is also offered. ...
Breaking Biology Technology:Green & Grow Inc. Secures $6M Series B Funding from Otter Capital 2Green & Grow Inc. Secures $6M Series B Funding from Otter Capital 3LLNL Synchs up with ELI Beamlines on Timing System 2LLNL Synchs up with ELI Beamlines on Timing System 3MSC names Mary Beth Loesch President and CEO 2Trifluoroacetic Acid Industry (Asia, Europe, North America, ROW) Analysis Report Now Available at ReportsnReports.com 2
... Imaging Diagnostic,Systems, Inc., (OTC Bulletin Board: IMDS), a ... recent study on CTLM is one of the featured,scientific ... Dr. Jin Qi,a radiologist at the Tianjin Medical ... her paper, "CTLM as an Adjunct to Mammography,in the ...
... strong pipeline makes the,Copenhagen Region biotech cluster well prepared for ... development, Denmark,ranks third in Europe. Only United Kingdom and Germany ... Also in term of pipeline growth Denmark has a ... countries in Europe. , ...
... 1 Collexis Holdings, Inc.,(OTC Bulletin Board: ... and,knowledge discovery software, announced today a partnership ... promote BiomedExperts.com,to the association,s 200+ membership base. ... primary professional network for,BioFlorida, helping to facilitate ...
Cached Biology Technology:Imaging Diagnostic Systems CT Laser Mammography (CTLM(R)) System Featured at the 94th Annual Radiological Society of North America (RSNA) Conference 2Imaging Diagnostic Systems CT Laser Mammography (CTLM(R)) System Featured at the 94th Annual Radiological Society of North America (RSNA) Conference 3Ernst & Young Benchmarks Danish Biotech Pipeline Third in Europe 2BioFlorida Selects Collexis' BiomedExperts.com as the Primary Professional Network for its 200 Member Companies and Organizations 2BioFlorida Selects Collexis' BiomedExperts.com as the Primary Professional Network for its 200 Member Companies and Organizations 3BioFlorida Selects Collexis' BiomedExperts.com as the Primary Professional Network for its 200 Member Companies and Organizations 4