Navigation Links
Great white sharks
Date:4/10/2013

MIAMI April 9, 2013 Many terrestrial animals are frequently observed scavenging on other animals whether it is a hyena stealing a lion kill in the Serengeti or a buzzard swooping down on a dead animal. However, documenting this sort of activity in the oceans is especially difficult, and often overlooked in marine food web studies.

In a new study published in PLOS ONE titled, "White sharks (Carcharodon carcharias) scavenging on whales and its potential role in further shaping the ecology of an apex predator," Captain Chris Fallows from Apex Expeditions collaborated with University of Miami (UM) scientists Dr. Neil Hammerschlag and Austin Gallagher, to explore the behaviors of Great white sharks scavenging on dead whales in South Africa. The team documented as many as 40 different sharks scavenging on a carcass over the course of a single day, revealing unique social interactions among sharks.

The study summarized observations based on four scavenging events opportunistically observed over a 10 year period. In each multi-day observation, the team recorded daily evidence of social, aggregative and feeding behaviors observed in the waters off South Africa. They suggest that although the occurrence of coming upon a whale carcass may be sporadic, the shark populations are likely prepared to scavenge on them, and may even rely on their scavenging activities to supplement their regular feeding activities.

"Although rarely seen, we suspect that as white sharks mature, scavenging on whales becomes more prevalent and significant to these species than previously thought," said Hammerschlag, who is director of the R.J. Dunlap Marine Conservation Program at UM.

The team found that sharks showed a clear preference for scavenging on the blubber, probably because these high calorie meals can sustain the sharks for longer periods of time. Interestingly, though, the s
'/>"/>

Contact: Alexandra Bassil
a.bassil@miami.edu
305-284-1092
University of Miami
Source:Eurekalert

Page: 1 2

Related biology news :

1. Asian carp DNA not widespread in the Great Lakes
2. Notre Dame study finds Asian carp DNA not widespread in the Great Lakes
3. Obama calls Ben-Gurion U. brain research a great idea
4. Are survivors of childhood leukemia and lymphoma at greater risk of chronic fatigue as adults?
5. Paving the way for greater use of ancient medical knowledge
6. Speech emerges in children with autism and severe language delay at greater rate than thought
7. Environmental threat map highlights Great Lakes restoration challenges
8. Mapping effort charts restoration tack for Great Lakes
9. Grant furthers Mercyhurst research for human pathogens in Great Lakes
10. Notre Dame research reveals migrating Great Lakes salmon carry contaminants upstream
11. University of Michigan, Michigan State University award grants for Great Lakes climate change research
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/31/2014)... hazard lurks beneath many of the roughly 156,000 ... hazard is corrosion in parts of underground gas ... and contamination of groundwater, a source of drinking ... states have reported many rapidly corroding gas storage ... are generally associated with use of gasoline-ethanol blends ...
(Date:7/31/2014)... available in German . ... gases similar to a sponge that soaks up liquids. ... hydrogen or greenhouse gases. However, loading of many MOFs ... Technology (KIT) now report in Nature Communications ... MOF surface. This can be prevented by water-free synthesis ...
(Date:7/31/2014)... alters how the brain processes speech, potentially increasing ... neuroscientists at The University of Texas at Dallas. ... Ear and Hearing , researchers demonstrated for ... the brain,s recognition of speech sounds. , Noise-induced ... population, affecting an estimated 15 percent of Americans ...
Breaking Biology News(10 mins):NIST corrosion lab tests suggest need for underground gas tank retrofits 2Free pores for molecule transport 2UT Dallas study reveals effect of loud noises on brain 2
... focus on forestsas opposed to the entire landscapecould ... poor in developing countries, said a Nairobi-based agroforestry ... forest degradation is driven by forces outside forests, ... land uses that involve the whole landscape, not ...
... This release is available in French . ... Laval, in collaboration with Nova Scotia Agricultural College, have discovered ... to double the lifespan of Christmas trees in homes. The ... scientific journal Trees . The researchers have identified ...
... Personality is not just a feature unique to humans ... have revealed that also brown trout have individual characters ... the Department of Zoology at the University of Gothenburg ... trout from watercourses on the west coast of Sweden. ...
Cached Biology News:Towards an efficient, effective and equitable REDD+ 2Towards an efficient, effective and equitable REDD+ 3Towards an efficient, effective and equitable REDD+ 4Researchers discover a way to delay Christmas tree needle loss 2
(Date:7/31/2014)... global market for molecular diagnostics is expected to reach ... study by Grand View Research, Inc. Growing demand for ... advanced cancer diagnostic technologies are expected to be key ... Moreover, the growing global base of geriatric population and ... lifestyle habits such as smoking and excessive alcohol consumption ...
(Date:7/31/2014)... 31, 2014   BioLife Solutions , Inc. (NASDAQ: ... marketer of proprietary clinical grade hypothermic storage ... thermal shipping products for cells and tissues, today ... results will be released on Thursday, August 7, 2014, ... and live webcast at 4:30 p.m. ET that afternoon. ...
(Date:7/31/2014)... July 31, 2014 Boston’s Adult Stem ... flush with innovative adult stem cell biotechnologies. Currently ... and has three additional patent applications currently under examination ... patented inventions address two of the most vexing problems ... Adult stem cells are difficult to identify; and ...
(Date:7/30/2014)... PARIS , July 30, 2014  Regeneron ... NYSE: SNY) today announced that the Companies intend to ... pediatric disease priority review voucher in connection with the ... review voucher entitles the holder to designate a BLA ... review from the filing date instead of the standard ...
Breaking Biology Technology:Molecular Diagnostics Market - Global Industry Size, Share, Trends, Analysis, Players, Opportunity, Outlook and Forecast From 2014 to 2020 2Molecular Diagnostics Market - Global Industry Size, Share, Trends, Analysis, Players, Opportunity, Outlook and Forecast From 2014 to 2020 3Molecular Diagnostics Market - Global Industry Size, Share, Trends, Analysis, Players, Opportunity, Outlook and Forecast From 2014 to 2020 4Molecular Diagnostics Market - Global Industry Size, Share, Trends, Analysis, Players, Opportunity, Outlook and Forecast From 2014 to 2020 5BioLife Solutions to Report Financial Results for Second Quarter 2014 and Provide Business Update on August 7, 2014 2The Adult Stem Cell Technology Center, LLC Launches A Marketing Campaign To License Adult Stem Cell Biotechnologies 2The Adult Stem Cell Technology Center, LLC Launches A Marketing Campaign To License Adult Stem Cell Biotechnologies 3Regeneron and Sanofi Announce Plan to Use Priority Review Voucher For Alirocumab U.S. FDA Submission 2Regeneron and Sanofi Announce Plan to Use Priority Review Voucher For Alirocumab U.S. FDA Submission 3Regeneron and Sanofi Announce Plan to Use Priority Review Voucher For Alirocumab U.S. FDA Submission 4Regeneron and Sanofi Announce Plan to Use Priority Review Voucher For Alirocumab U.S. FDA Submission 5Regeneron and Sanofi Announce Plan to Use Priority Review Voucher For Alirocumab U.S. FDA Submission 6
... of GE Healthcare in Milwaukee, has built the ... , ,The MRI, which is used to study internal anatomy ... magnet. A tesla is a unit of magnetic strength. The ... times the strength of the Earths magnetic field. , ,While ...
... Source: Wisconsin Paper Council APPLETON, Wis. Foreign ... the latest technology and find new marketsor slowly perish. ... a story from 1911. It still serves as an ... newsprint producer in the United States. That dominance faded ...
... serious fight between Apple Computers and Apple Records (of Beatles fame) ... of the ring is Sir Paul McCartney, with the title of ... On the other side, yet another youthful boy wonder, Steve Jobs ... to lead the start of the personal computer revolution. , ,The ...
Cached Biology Technology:Wisconsin's paper industry needs technology, innovation to prosper. 2Wisconsin's paper industry needs technology, innovation to prosper. 3Why you should never name your company after a fruit 2Why you should never name your company after a fruit 3
Mouse monoclonal antibody to PDK2 - pyruvate dehydrogenase kinase, isoenzyme 2...
... cytoplasmic expression of an N-terminal FLAG® fusion ... selection marker from bicistronic mRNA. Two ... MCS2 for transcription of a single message ... useful for protein-protein interaction studies, multi-subunit proteins, ...
Mouse monoclonal antibody raised against a partial recombinant CALCOCO2. NCBI Entrez Gene ID = CALCOCO2...
Mouse polyclonal antibody raised against a partial recombinant KCTD13. NCBI Entrez Gene ID = 253980...
Biology Products: