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Foraging behaviour of antarctic fur seals during periods of contrasting prey abundance
1. Foraging behaviour of Antarctic fur seals rearing pups at Bird Island, South Georgia, was assessed using at-sea activity patterns measured by electronic time-depth recorders. Information wasExpand
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Milk consumption and growth efficiency in Antarctic fur seal (Arctocephalus gazella) pups
The body composition, milk consumption, and growth efficiency of Antarctic fur seal (Arctocephalus gazella) pups were measured over three consecutive lactation periods (1990- 1992) at Bird Island,Expand
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Measuring the Body Composition of Antarctic Fur Seals (Arctocephalus gazella): Validation of Hydrogen Isotope Dilution
We examined the accuracy of hydrogen isotope dilution (tritium and deuterium) as a means of determining total body water (TBW), and hence body composition, by comparison with whole-carcass chemicalExpand
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Milk fatty acid signatures indicate both major and minor shifts in the diet of lactating Antarctic fur seals
Fatty acid signature analysis is based on the principle that unique arrays of fatty acids within groups of organisms can be transferred, largely unaltered, up the marine food chain and thus may be anExpand
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The relationship between foraging behaviour and energy expenditure in Antarctic fur seals
By using time-depth recorders to measure diving activity and the doubly-labelled water method to determine energy expenditure, the relationship between foraging behaviour and energy expenditure wasExpand
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Temporal patterns of milk production in Antarctic fur seals (Arctocephalus gazella)
The timing of milk production in Antarctic fur seals was studied at Bird Island, South Georgia. Like all lactating otariid seals (Pinnipedia: Otariidae), Antarctic fur seal females alternate betweenExpand
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Noninvasive unmanned aerial vehicle provides estimates of the energetic cost of reproduction in humpback whales
An animal's body condition will affect its survival and reproductive success, which influences population dynamics. Despite its importance, relatively little is known about the body condition ofExpand
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Inter- and Intra-annual Variation in Milk Composition in Antarctic Fur Seals (Arctocephalus gazella)
The inter- and intra-annual variation in milk composition in Antarctic fur seals (Arctocephalus gazella) was investigated over three consecutive lactation periods (1990-1992) at Bird Island, SouthExpand
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Indices of body condition and body composition in female Antarctic fur seals (Arctocephalus gazella)
An attempt was made to develop simple, inexpensive, rapid means of determining body composition in Antarctic fur seals (Arctocephalus gazella). Measurements of total body water (TBW) and total bodyExpand
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Differences in foraging strategy and maternal behaviour between two sympatric fur seal species at the Crozet Islands
Marine top-predators such as marine mammals forage in a heterogeneous environment according to their energetic requirements and to the variation in environmental characteristics. In this study, theExpand
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