SC/D06/J23 Interactions between oceanography, krill and baleen whales in

A joint survey of the R/V Kaiyo Maru and the Japanese Whale Research Program under Special Permit in the Antarctic (JARPA) was carried out to study an interaction between oceanography as environmental condition, distribution of krill as prey and baleen whales as predators in the Ross Sea and its adj...

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Bibliographic Details
Main Authors: Y. Watanabe, T. Yabuki, Y. Yoda, Y. Noiri, M. Kuga, K. Yoshikawa, N. Kokubun, K. Matsuoka, K. Ito
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
Antarctic
Austral
Ross Sea
The Antarctic
Antarc*
Antarctic Krill
Antarctica
baleen whales
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.463.2270
http://www.icrwhale.org/pdf/SC-D06-J23.pdf
Description
Summary:A joint survey of the R/V Kaiyo Maru and the Japanese Whale Research Program under Special Permit in the Antarctic (JARPA) was carried out to study an interaction between oceanography as environmental condition, distribution of krill as prey and baleen whales as predators in the Ross Sea and its adjacent waters, Antarctica, in austral summer of 2004/05. Results indicated close interactions between the oceanography, krill and baleen whales. The oceanography of the surface layer was summarized as an oceanographic environmental index that integrated temperature mean from 0 to 200 m in depth (ITEM-200). Distribution of ITEM-200 was used as background information for comparing with distribution patterns of each species. Antarctic krill mainly distributed in the Antarctic Surface Water (ASW) area (ITEM-200 = 0 to-1oC) and extended in the Shelf Water (SW) area (less than-1oC). Ice krill clearly distributed in SW but not ASW.

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