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Diving depths of shags Phalacrocorax aristotelis breeding on the Isle of May

Wanless, S.; Burger, A. E.; Harris, M. P.. 1991 Diving depths of shags Phalacrocorax aristotelis breeding on the Isle of May. Ibis, 133 (1). 37-42. 10.1111/j.1474-919X.1991.tb04807.x

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Abstract/Summary

Information on maximum dive depth and the time spent at various depths was obtained from 49 Shags Phalacrocorax aristotelis. On average, the maximum dive depth was 33–35 m; the overall maximum was 43 m. Shags dived repeatedly to the same depth and spent c. 55% of the time between 25 and 34 m which indicated that they were foraging close to the seabed. About 46% of the time underwater was spent foraging and 54% travelling. Average underwater swimming speed was 1.7-1.9 m per second.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1111/j.1474-919X.1991.tb04807.x
Programmes: CEH Programmes pre-2009 publications > Other
CEH Sections: _ Pre-2000 sections
ISSN: 0019-1019
Additional Keywords: Shags, Phalacrocorax aristotelis, Isle of May
NORA Subject Terms: Zoology
Date made live: 13 Oct 2008 10:08
URI: http://nora.nerc.ac.uk/id/eprint/4536

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