Navigation Links
What do killer whales eat in the Arctic?
Date:1/29/2012

Killer whales (Orcinus orca) are the top marine predator, wherever they are found, and seem to eat everything from schools of small fish to large baleen whales, over twice their own size. The increase in hunting territories available to killer whales in the Arctic due to climate change and melting sea ice could seriously affect the marine ecosystem balance. New research published in BioMed Central's re-launched open access journal Aquatic Biosystems has combined scientific observations with Canadian Inuit traditional knowledge to determine killer whale behaviour and diet in the Arctic.

Orca have been studied extensively in the northeast Pacific ocean, where resident killer whales eat fish, but migrating whales eat marine mammals. Five separate ecotypes in the Antarctic have been identified, each preferring a different type of food, and similar patterns have been found in the Atlantic, tropical Pacific, and Indian oceans. However, little is known about Arctic killer whale prey preference or behaviour.

Traditional Ecological Knowledge (TEK) is increasingly being used to supplement scientific observations. Researchers from Manitoba visited 11 Canadian Nunavut Inuit communities and collated information from over 100 interviews with hunters and elders.

The Inuit reported that killer whales would 'eat whatever they can catch', mainly other marine mammals including seals (ringed, harp, bearded, and hooded) and whales (narwhal, beluga and bowhead). However there was no indication that Arctic killer whales ate fish. Only seven of the interviewees suggested that killer whales ate fish, but none of them had ever seen it themselves.

The type of reported prey varied between areas. Most incidences of killer whales eating bowhead whales occurred in Foxe Basin and narwhal predation was more frequent around Baffin Island. Inuit were also able to describe first-hand how killer whales hunted, including several reports of
'/>"/>

Contact: Dr. Hilary Glover
hilary.glover@biomedcentral.com
44-203-192-2370
BioMed Central
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Dinosaurs with killer claws yield new theory about flight
2. Scientific sleuths pinpoint the guilty coral killers
3. Antarctic killer whales may seek spa-like relief in the tropics
4. From mild-mannered to killer plague
5. Paternity testing helps fill in family tree for Puget Sounds killer whales
6. How killer immune cells avoid killing themselves
7. Scientists track evolution and spread of deadly fungus, one of the worlds major killers
8. NOAA scientists find killer whales in Antarctic waters prefer weddell seals over other prey
9. Natural (born) killers: What do they really do?
10. Killer paper for next-generation food packaging
11. Monitoring killer mice from space
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
What do killer whales eat in the Arctic?
(Date:3/17/2015)... 17, 2015  MecklerMedia Corporation (OTCQX: MECK) announced ... service robots ever held in New ... May 11-13, 2015 at the Javits Convention Center. ... event include: Acorn Product Development; Axis NJ; c-Link ... Robotics; Littler; NewBotic Corporation; Neya Systems LLC; Reliabotics; ...
(Date:3/12/2015)... 12, 2015 Beta Systems ... and access management (IAM) solution for a fixed ... Beta System,s new IAM package, customers benefit from ... from multiple IAM implementations across different industries. The ... well as any necessary services and consulting. It ...
(Date:3/10/2015)...  Continuing its 167-year history of offering the Best, ... The Eye Scanning Password Authenticator , a device that ... websites or sensitive data. Employing the same ... the device has a small camera that scans and ... converting them into an encrypted ID that cannot be ...
Breaking Biology News(10 mins):MecklerMedia's RoboUniverse New York Announces Sponsors and Exhibitors, May 11-13, 2015 2Beta Systems Fast Forward IAM Available Now: a Standardized IAM Package at a Fixed Price 2Hammacher Schlemmer Introduces The Eye Scanning Password Authenticator 2
... burn crop residues and get the land ready for ... image from the MODIS instrument on the Aqua satellite. ... fires can be found at this URL: http://www.nasa.gov/mission_pages/fires/main/world/20130326-indochina.html ... the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the Aqua ...
... genes to living human tissue, the odds of success come ... used to bring new genetic material into a cell ... process will simplify non-viral transfection, providing a method researchers and ... deliver genes to cells. Developed by William Murphy, ...
... led by Dr. Suresh Alahari, Professor of Biochemistry and Molecular ... first to report that two specific tumor suppressor genes work ... tumor cells to the lungs. The research is published this ... Working in a mouse model, the LSUHSC research team studied ...
Cached Biology News:Material screening method allows more precise control over stem cells 2LSUHSC research discovers new drug target for metastatic breast cancer 2
(Date:3/27/2015)... (PRWEB) March 27, 2015 Earlier this ... the promotion of hair regrowth in adult men and ... I-II or Norwood Hamilton classifications of IIa-V and Fitzpatrick ... industry plagued by products that over-promise and under-deliver, FDA ... renewing faith and confidence among more than 80 million ...
(Date:3/27/2015)... , March 27, 2015   SurePure, Inc ... photopurification, announced today that the Company has completed ... continued trading of SurePure ("SURP") securities on OTCQB, ... for entrepreneurial and development stage companies. ... standards and eligibility requirements designed to improve marketplace ...
(Date:3/27/2015)... March 27, 2015  CASI Pharmaceuticals, Inc. (Nasdaq: ... development and commercialization of innovative therapeutics addressing cancer and ... a commercial focus on China , ... months ended December 31, 2014.  The ... ($0.05) per share, for the three months ended December ...
(Date:3/26/2015)... TORONTO , March 26, 2015 /PRNewswire/ - SQI ... SQIDF) announced that after dealing with certain matters, including ... of shareholders held on March 26, 2015 (the "Meeting") ... until April 8, 2015 at 11:00 a.m. ( ... Meeting has been changed from that previous disclosed. The ...
Breaking Biology Technology:Dr. Robert Leonard Applauds FDA Clearance of Capillus272Pro™ Hair Loss Laser Cap 2SurePure Completes Verification and Approved for Trading on the OTCQB Marketplace 2CASI Pharmaceuticals Reports 2014 Fourth Quarter And Full Year Financial Results 2CASI Pharmaceuticals Reports 2014 Fourth Quarter And Full Year Financial Results 3CASI Pharmaceuticals Reports 2014 Fourth Quarter And Full Year Financial Results 4CASI Pharmaceuticals Reports 2014 Fourth Quarter And Full Year Financial Results 5CASI Pharmaceuticals Reports 2014 Fourth Quarter And Full Year Financial Results 6SQI Diagnostics Inc. Announces Adjournment of Meeting 2
... Replikins Ltd. published a FluForecast(R) warning in April 7th, ... H1N1 cases. The company was able to state the ... Count(TM) genomics technology, which examines specific regions in virus ... 2008 announcement, attached below as published on the Web, ...
... cells to combat aging and help support healing , ... ... Aesthetics , a division of Histogen focused on providing unique, clinically ... launch of the ReGenica™ Rejuvenation System for anti-aging and post-resurfacing. ...
... Mass., April 27 LaVoie Group, a life science-focused ... selected as investor relations agency of record for Pegasus ... LaVoie Group, commented, "Pegasus has the opportunity to capture ... The Company is changing the standard of care in ...
Cached Biology Technology:Biotechnology Company, Replikins Ltd., Provided Advance Warning of Mexican H1N1 'Swine Flu' Virus Outbreak 2Biotechnology Company, Replikins Ltd., Provided Advance Warning of Mexican H1N1 'Swine Flu' Virus Outbreak 3Histogen Aesthetics Launches ReGenica Rejuvenation System 2Histogen Aesthetics Launches ReGenica Rejuvenation System 3Histogen Aesthetics Launches ReGenica Rejuvenation System 4LaVoie Group Adds Bio-Surgery Company, Pegasus Biologics, to Its Life Sciences Agency Roster 2
Request Info...
Goat polyclonal to MLH3 Immunogen: Synthetic peptide: RQSLQQSMPPCEPP (Human) from C Terminus of the protein sequence according to NP_055196....
IRF7 Immunogen: Synthetic peptide corresponding to residues E(463) G T Q R E G V S S L D S S S(477) of human IRF7. Storage: -20 C, Avoid Freeze/Thaw Cycles...
Rabbit polyclonal to NMDAR1 e/f/g/h ( Abpromise for all tested applications)....
Biology Products: