Abstract
The mean maximum dive depth from 49 foraging bouts by northern rockhopper penguins, measured using capillary-tube depth gauges, was 66±4 m (12–168 m). There were no differences in the maximum dive depths between male and female penguins. Northern rockhopper penguins dived deeper in early than in late creche stages (83±7 vs 57±4 m), and this was associated with probable dietary changes, squid dominating the diet by mass (44%) in November, and fish (64%) in December 1994 at Amsterdam Island.
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Received: 10 January 1996/Accepted: 31 March 1996
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Tremblay, Y., Guinard, E. & Cherel, Y. Maximum diving depths of northern rockhopper penguins (Eudyptes chrysocome moseleyi) at Amsterdam Island. Polar Biol 17, 119–122 (1997). https://doi.org/10.1007/s003000050113
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DOI: https://doi.org/10.1007/s003000050113