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:7/10/2014)... July 2, 2014  Unisys Corporation,s (NYSE: UIS ... Nederland N.V., today announced that it has been selected by ... manage a new Basic Provision Biometrics solution for penitentiaries across ... won the contract with a solution based on its open ... term of the contract is up to seven years, with ...
(Date:7/10/2014)... 2014 NXT-ID, Inc., (OTCQB: NXTD) a biometric authentication company focused ... Gino Pereira was interviewed on July 1 st ... Florida . Mr. Pereira discusses the company,s next generation ... and how the Wocket™ aims to replace a traditional wallet ... Cedric Harris tells Gino he has never heard of ...
(Date:7/10/2014)... DUBLIN , July 3, 2014 ... the addition of the "Global Gesture Recognition ... Market - Forecasts to 2020" report to ... Global Gesture Recognition & Touch-Less Sensing ... been around for a while, but the companies ...
Breaking Biology News(10 mins):Unisys Delivers New Basic Provision Biometrics Solution to Dutch Custodial Institutions Service 2Unisys Delivers New Basic Provision Biometrics Solution to Dutch Custodial Institutions Service 3Security and Your Money: Tampa Bay Radio Host Cedric Harris Talks to NXT-ID CEO Mr. Gino Pereira about the Wocket Smart Wallet 2Security and Your Money: Tampa Bay Radio Host Cedric Harris Talks to NXT-ID CEO Mr. Gino Pereira about the Wocket Smart Wallet 3Security and Your Money: Tampa Bay Radio Host Cedric Harris Talks to NXT-ID CEO Mr. Gino Pereira about the Wocket Smart Wallet 4Global Gesture Recognition & Touch-Less Sensing (2D, 3D, Ultrasonic, IR, Capacitive) Market - Forecasts to 2020 2
... on a pilot study in children with sarcoma, researchers ... immunotherapy could prove beneficial in treating high-risk forms of ... dendritic vaccine as well as a standard flu vaccine ... Their findings, published in the August 1 issue of ...
... Department of Energy (DOE) Under Secretary for Science Dr. ... Research, Education and Economics Gale Buchanan today announced plans ... to accelerate fundamental research in the development of cellulosic ... the best near- to mid-term alternatives we have, on ...
... the soil break down fallen plant matter, a diet "balanced" ... normal release of the greenhouse gas carbon dioxide into the ... twigs, this organic matter slowly becomes part of the soil ... and other microbes. This process adds plant nutrients to the ...
Cached Biology News:Immunotherapy in high-risk pediatric sarcomas shows promising response 2Immunotherapy in high-risk pediatric sarcomas shows promising response 3DOE and USDA announce more than $10 million in bioenergy plant feedstock research 2Microbe diet key to carbon dioxide release 2Microbe diet key to carbon dioxide release 3
(Date:7/10/2014)... Montreal, QC (PRWEB) July 10, 2014 ... comfort and convenience. This rejuvenating device now comes with a ... that develops over time. , The new cup is thinner ... This design works to target rough, thin and uneven surfaces ... original firm cup for a stimulating treatment on areas such ...
(Date:7/10/2014)... 10, 2014  Kainos Capital, a firm specializing in ... that it has acquired the Slim-Fast brand from Unilever. ... Terms of the transaction were not disclosed. ... business that markets ready-to-drink shakes, powders, bars and snacks ... and in the United Kingdom ...
(Date:7/10/2014)... 15, 2014 -- According to the International Atomic ... security comes from terrorists acquiring sufficient quantities of ... a crude nuclear explosive device. The IAEA also ... have involved gram-level quantities, which can be challenging ... to a new study appearing this week in ...
(Date:7/10/2014)... disorders has been extremely challenging because there are many ... to cause disease. Now investigators reporting in the July ... Stem Cell describe a strategy that may help ... risk factors or environmental exposures to affect the development ... variant that may predispose individuals to schizophrenia. , ...
Breaking Biology Technology:Introducing a New Bonus Treatment Cup for EvoDerma’s NOOME Anti-Aging Motion 2Kainos Capital Acquires Slim-Fast From Unilever 2Sensitive detection method may help impede illicit nuclear trafficking 2New strategy could uncover genes at the root of psychiatric illnesses 2
... , Jan. 12 Novavax, Inc. (Nasdaq: ... pre-clinical safety and efficacy study of its RSV vaccine candidate ... support an Investigational New Drug (IND) application to advance this ... into clinical development.  This vaccine candidate is composed of recombinant ...
... ... a standalone Windows® desktop application for viewing eCTD submissions created for any region. ... Marlborough, MA (PRWEB) January 12, ... for the life sciences industry, today announced the release of Datafarm VUE, a new addition ...
... ... VA, will discuss practical approaches to President Obama’s challenges to "find the needle in ... ... connect the dots” on the Christmas bomber in his recent address to the Nation. ...
Cached Biology Technology:NOVAVAX Announces Positive Preclinical Results for its Respiratory Syncytial Virus (RSV) Vaccine Candidate 2NOVAVAX Announces Positive Preclinical Results for its Respiratory Syncytial Virus (RSV) Vaccine Candidate 3NOVAVAX Announces Positive Preclinical Results for its Respiratory Syncytial Virus (RSV) Vaccine Candidate 4NOVAVAX Announces Positive Preclinical Results for its Respiratory Syncytial Virus (RSV) Vaccine Candidate 5Datafarm Releases New Desktop-based Application for Multi-region Viewing of eCTD Submissions: Datafarm VUE 2NDIA's Biometrics Conference to Address Practical Approaches to the President's Challenge of 'Connecting the Dots' and Implementing $1B for New and Additional Security 2
Lysozyme C (W-20)...
Abgene's ALTO-8 is the first automated decapper/capper for Abgene Twist-Lock tubes....
... Jouan B4i ventilated and BR4i refrigerated multifunction centrifuges ... speed operation at a low sound level with ... for biocontainment. Their AUTO-LOCK rotor exchange system without ... for use within seconds. Instant rotor ...
versican (H-56)...
Biology Products: