Navigation Links
Record number of whales, krill found in Antarctic bays
Date:4/27/2011

DURHAM, N.C. Scientists have observed a "super-aggregation" of more than 300 humpback whales gorging on the largest swarm of Antarctic krill seen in more than 20 years in bays along the Western Antarctic Peninsula.

The sightings, made in waters still largely ice-free deep into austral autumn, suggest the previously little-studied bays are important late-season foraging grounds for the endangered whales. But they also highlight how rapid climate change is affecting the region.

The Duke University-led team tracked the super-aggregation of krill and whales during a six-week expedition to Wilhelmina Bay and surrounding waters in May 2009. They published their findings today (April 27) in the online science journal PLoS ONE.

"Such an incredibly dense aggregation of whales and krill has never been seen before in this area at this time of year," says Duke marine biologist Douglas Nowacek. Most studies have focused on whale foraging habitats located in waters farther offshore in austral summer.

Nowacek and his colleagues observed 306 humpback whales or about 5.1 whales per square kilometer, the highest density ever recorded in Wilhelmina Bay. They measured the krill biomass at about 2 million tons. Small, floating fragments of brash ice covered less than 10 percent of the bay. The team returned in May 2010 and recorded similar numbers. Smaller but still higher-than-normal counts were also reported in neighboring Andvord Bay.

Advancing winter sea ice used to cover much of the peninsula's bays and fjords by May, protecting krill and forcing humpback whales to migrate elsewhere to find food, Nowacek says. But rapid climate change in the area over the last 50 years has significantly reduced the extent, and delayed the annual arrival, of the ice cover, says Nowacek, who is the Repass-Rodgers University Associate Professor of Conservation Technology.

"The lack of sea ice is good news for the whales in the short
'/>"/>

Contact: Tim Lucas
tdlucas@duke.edu
919-613-8084
Duke University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. UCLA researchers engineer E. coli to produce record-setting amounts of alternative fuel
2. Fossils record ancient migrations and trilobite orgies
3. The most genes in an animal? Tiny crustacean holds the record
4. Record-high greenhouse gas concentrations
5. Possible discovery of earliest animal life pushes back fossil record
6. Discovery of possible earliest animal life pushes back fossil record
7. IRSF lauds record turn-out for annual Rett Syndrome Symposium
8. ScriptRx and DigitalPersona Team Up to Secure Emergency Room and Urgent Care Electronic Medical Records
9. Bats echolocation recorded for human exploit
10. Call Recording Enhances Performance at UK Gloucestershire Police
11. Innovalight Establishes New Record With Silicon Ink Solar Cells
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/29/2014)... a large cohort of kidney cancer patients in Europe ... -- and reveals an apparent link between exposure to ... Romania. , The research, by an international team led ... Innovation Centre in Montreal, underscores the importance of investigating ... found in plants of the Aristolochia genus, also has ...
(Date:10/28/2014)... (NIH) announced awards to expand the Office of ... for Advancing Translational Sciences (ORDR-NCATS) collaborative Rare Diseases ... physician scientists at 22 consortia will work with ... and investigate new treatments for patients with rare ... million in fiscal 2014 funding from NIH. , ...
(Date:10/28/2014)... and juices are associated with a lower risk of ... University of East Anglia (UEA). , Research published ... and flavanones (both subclasses of dietary flavonoids) significantly decrease ... cause of cancer death among women. , The ... aged between 25 and 55 for more than three ...
Breaking Biology News(10 mins):Study sheds light on genetic architecture of kidney cancer 2Study sheds light on genetic architecture of kidney cancer 3NIH's ORDR-NCATS RDCRN & NICHD awards U54 cooperative agreement for natural history study 2NIH's ORDR-NCATS RDCRN & NICHD awards U54 cooperative agreement for natural history study 3Tea and citrus products could lower ovarian cancer risk, new UEA research finds 2
... WASHINGTON Synthetic biology promises to enable cheap, lifesaving ... suffer from malaria, and to create innovative biofuels that ... the science and its applications are raising questions: ... purposely changing the definition of what is life? ...
... Carolina, there are five strange looking "patches" cleared out ... circles carved by aliens. , They,re actually budding longleaf ... St. Louis and their collaborators at North Carolina State ... Washington have created these ecological patches with the help ...
... French . Plant researchers from ... announced a major breakthrough in a developmental process called ... reversal of what is called epigenetic silencing in plants. ... better understanding of gene regulation in the continuing quest ...
Cached Biology News:Synthetic biology: Is ethics a showstopper? 2Study on wildlife corridors shows how they work over time 2Study on wildlife corridors shows how they work over time 3Study on wildlife corridors shows how they work over time 4Plants display 'molecular amnesia' 2Plants display 'molecular amnesia' 3
(Date:10/30/2014)... 2014 SoundConnect , an ... Office 365 end users the key to turning ... system by adding voice enablement and hybrid audio ... Online, a communication tool that includes presence, instant ... voice, O365 becomes a comprehensive unified communications solution. ...
(Date:10/30/2014)... October 30, 2014 James Sherley says he ... adult tissue stem cell technology since his days as a ... Philadelphia in the late 1990’s. Sherley founded the ASCTC ... company holds all the intellectual property developed in Sherley’s research ... the Massachusetts Institute of Technology (MIT), and more recently as ...
(Date:10/30/2014)... New York, NY (PRWEB) October 30, 2014 ... investment plan for its ICH Stability Testing and Package ... companies, this investment centers on a dramatic increase in ... larger volume of stability, storage and aging samples to ... first stage of this major capital expenditure has already ...
(Date:10/30/2014)... Grace Century portfolio project, Provia Laboratories ... of the Board, to the National Stem Cell Ethics ... made by the Ministry of Health on behalf of the ... , More than a year after Bahamian Parliament passed the ... Perry Christie said the government has completed the accompanying regulations ...
Breaking Biology Technology:SoundConnect Launches Voice Enablement and Hybrid Audio Conferencing for Office 365 2SoundConnect Launches Voice Enablement and Hybrid Audio Conferencing for Office 365 3Boston’s Adult Stem Cell Technology Center, LLC Introduces A New Technology for Monitoring Previously Elusive Adult Stem Cells 2Boston’s Adult Stem Cell Technology Center, LLC Introduces A New Technology for Monitoring Previously Elusive Adult Stem Cells 3Boston’s Adult Stem Cell Technology Center, LLC Introduces A New Technology for Monitoring Previously Elusive Adult Stem Cells 4Whitehouse Labs Announces Major Capital Investment in Stability and Storage Testing Capacity 2Whitehouse Labs Announces Major Capital Investment in Stability and Storage Testing Capacity 3Grace Century’s Stem Cell Biobank Project Announces Chairman’s Appointment to National Stem Cell Ethics Committee of The Bahamas 2Grace Century’s Stem Cell Biobank Project Announces Chairman’s Appointment to National Stem Cell Ethics Committee of The Bahamas 3
... amounts are in U.S. dollars, QUEBEC CITY, May ... TSX: AEZ), a global biopharmaceutical company focused on,endocrinology and ... quarter ended March 31, 2008., First Quarter ... second efficacy trial of the Phase ...
... Calif., May 6 Finesse Solutions, LLC,Santa ... control solutions for,life sciences process applications, announced ... of Software. Basil brings over 19 years ... a focus on,implementing high efficiency engineering, resource ...
... Genta,Incorporated (OTC Bulletin Board: GNTA) announced today ... Regulatory Authority (FINRA, formerly,the NASD) has cleared a ... stock on the Over-the-Counter Bulletin Board (OTCBB). As ... for the Company,s,common stock will begin on Wednesday, ...
Cached Biology Technology:AEterna Zentaris Reports First Quarter 2008 Financial and Operating Results 2AEterna Zentaris Reports First Quarter 2008 Financial and Operating Results 3AEterna Zentaris Reports First Quarter 2008 Financial and Operating Results 4AEterna Zentaris Reports First Quarter 2008 Financial and Operating Results 5AEterna Zentaris Reports First Quarter 2008 Financial and Operating Results 6AEterna Zentaris Reports First Quarter 2008 Financial and Operating Results 7Basil Zimmo Joins Finesse Solutions as Vice-President of Software 2Genta Announces Transfer of its Common Stock to the OTC Bulletin Board 2Genta Announces Transfer of its Common Stock to the OTC Bulletin Board 3
... traps a wide variety of solvent vapors that can ... flask (GCF400) allows for the collection of liquid into ... time minimizes waiting period., Ultra low -104 ... , Digital Display of ...
... RCT series of refrigerated cold traps offers ... of low volatility/aqueous solvents or high volatility ... other vacuum concentrators/centrifugal evaporators. Also used for ... such as used in electron microscopes. Can ...
... Trap is specifically designed for efficient ... as DMSO and DMF in the ... refrigeration system set at -5 o ... DMSO, while completely eliminating the risk ...
96 Well Plate Sterile, RE bottom; consistent medium binding affinity for hydrophobic complexes and proteins....
Biology Products: