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Albatross Camera Reveals Fascinating Feeding Interaction With Killer Whale

Date:
October 7, 2009
Source:
British Antarctic Survey
Summary:
Scientists from the UK and Japan have recorded the first observations of how albatrosses feed alongside marine mammals at sea.

Albatross with killer whale.
Credit: Image courtesy of British Antarctic Survey

Scientists from British Antarctic Survey, National Institute of Polar Research, Tokyo, and Hokkaido University, Japan, have recorded the first observations of how albatrosses feed alongside marine mammals at sea.

A miniature digital camera was attached to the backs of four black-browed albatrosses (Thalassarche melanophrys) breeding at colonies on Bird Island, South Georgia in the Southern Ocean. Results are published online this week in the open-access journal PLoS ONE from the Public Library of Science.

The amazing pictures reveal albatrosses foraging in groups while at sea collecting food for their chicks. It also provides the first observation of an albatross feeding with a killer whale – a strategy they may adopt for efficiency.

The camera, developed by the National Institute for Polar Research in Tokyo, is removed when the albatross returns to its breeding ground after foraging trips. It is small (the size of a packet of polo mints*) and weighs 82g. Although the camera slightly changes the aerodynamic shape of the albatross, it didn't affect the breeding success of the study birds.

Dr Richard Phillips from British Antarctic Survey (BAS) says: "These images are really interesting. They show us that albatrosses associate with marine mammals in the same way as tropical seabirds often do with tuna. In both cases the prey (usually fish) are directed to the surface and then it's easy hunting for the birds."

The study took place at the breeding colony of black-browed albatrosses at Bird Island, South Georgia in January 2009, as part of a UK-Japan International Polar Year 2007-9 project.


Story Source:

The above story is based on materials provided by British Antarctic Survey. Note: Materials may be edited for content and length.


Journal Reference:

  1. Sakamoto KQ, Takahashi A, Iwata T, Trathan PN. From the Eye of the Albatrosses: A Bird-Borne Camera Shows an Association between Albatrosses and a Killer Whale in the Southern Ocean. PLoS ONE, 2009; 4(10): e7322

Cite This Page:

British Antarctic Survey. "Albatross Camera Reveals Fascinating Feeding Interaction With Killer Whale." ScienceDaily. ScienceDaily, 7 October 2009. <www.sciencedaily.com/releases/2009/10/091006201350.htm>.
British Antarctic Survey. (2009, October 7). Albatross Camera Reveals Fascinating Feeding Interaction With Killer Whale. ScienceDaily. Retrieved April 24, 2014 from www.sciencedaily.com/releases/2009/10/091006201350.htm
British Antarctic Survey. "Albatross Camera Reveals Fascinating Feeding Interaction With Killer Whale." ScienceDaily. www.sciencedaily.com/releases/2009/10/091006201350.htm (accessed April 24, 2014).

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