FEEDING OF OTÁRIA-DO-CABO (Arctocephalus pusillus pusillus) IN A ZOO PARK: ENERGY ASPECTS, DIGESTION AND BEHAVIORAL VARIATIONS
نویسندگان
چکیده
منابع مشابه
blubber of Cape fur seals Arctocephalus pusillus pusillus off the Eastern Cape coast of South Africa
The concentration of heavy metals (Cd, Cu, Pb, Ni and Zn) and organochlorine contaminants (PCBs, DDT, DDE and DDD) in the blubber of 12 adult male Cape fur seals, Arctocephalus pusillus pusillus, inadvertently caught in trawl nets off the Eastern Cape coast of South Africa during commercial fishing operations between May 1993 and October 1994, was investigated. The median and range of concentra...
متن کاملBrightness discrimination in the South African fur seal (Arctocephalus pusillus)
Underwater, the contrast between object and background is much larger reduced with increasing distance between object and observer than in air. For marine predators, such as pinnipeds, it would therefore be advantageous to possess a high sensitivity for brightness differences, since this would increase the distance at which prey can be detected visually. Few studies have examined the brightness...
متن کاملIntraguild predation and partial consumption of blue sharks Prionace glauca by Cape fur seals Arctocephalus pusillus pusillus
Intraguild predation and partial consumption of blue sharks Prionace glauca by Cape fur seals Arctocephalus pusillus pusillus C Fallows, HP Benoît & N Hammerschlag To cite this article: C Fallows, HP Benoît & N Hammerschlag (2015) Intraguild predation and partial consumption of blue sharks Prionace glauca by Cape fur seals Arctocephalus pusillus pusillus, African Journal of Marine Science, 37:1...
متن کاملAustralian Fur Seals (Arctocephalus pusillus doriferus) Use Raptorial Biting and Suction Feeding When Targeting Prey in Different Foraging Scenarios
Foraging behaviours used by two female Australian fur seals (Arctocephalus pusillus doriferus) were documented during controlled feeding trials. During these trials the seals were presented with prey either free-floating in open water or concealed within a mobile ball or a static box feeding device. When targeting free-floating prey both subjects primarily used raptorial biting in combination w...
متن کاملTemporal Allocation of Foraging Effort in Female Australian Fur Seals (Arctocephalus pusillus doriferus)
Across an individual's life, foraging decisions will be affected by multiple intrinsic and extrinsic drivers that act at differing timescales. This study aimed to assess how female Australian fur seals allocated foraging effort and the behavioural changes used to achieve this at three temporal scales: within a day, across a foraging trip and across the final six months of the lactation period. ...
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ژورنال
عنوان ژورنال: ENVIRONMENTAL SMOKE
سال: 2018
ISSN: 2595-5527
DOI: 10.32435/envsmoke.201812183