Predation on Gonatus antarcticus by Falkland Islands seabirds

Recent studies of Falkland Islands seabird diets have found that Gonatus antarticus is a major prey item for a number of penguin species. Rockhopper ( Eudyptes chrysocome ), gentoo ( Pygoscelis papua ) and Magellanic ( Spheniscus magellanicus ) penguins breeding in the Falklands are estimated to con...

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Bibliographic Details
Published in:Antarctic Science
Main Author: Thompson, K.R.
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 1994
Subjects:
Geology
Ecology, Evolution, Behavior and Systematics
Oceanography
Antarc*
Antarctic Science
antarcticus
antartic*
Pygoscelis papua
Online Access:http://dx.doi.org/10.1017/s0954102094000404
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102094000404
Description
Summary:Recent studies of Falkland Islands seabird diets have found that Gonatus antarticus is a major prey item for a number of penguin species. Rockhopper ( Eudyptes chrysocome ), gentoo ( Pygoscelis papua ) and Magellanic ( Spheniscus magellanicus ) penguins breeding in the Falklands are estimated to consume several thousand million Gonatus per annum, with mean dorsal mantle lengths of 28–42 mm. Aspects of the distribution and growth of the G. antarcticus stock in the vicinity of the Falkland Islands are discussed.

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