PYGMY SPERM WHALE (KOGIA BREVICEPS) STRANDING RECORD IN TASMANIA, AUSTRALIA, AND DIET OF A SINGLE SPECIMEN - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Papers and Proceedings of the Royal Society of Tasmania Année : 2013

PYGMY SPERM WHALE (KOGIA BREVICEPS) STRANDING RECORD IN TASMANIA, AUSTRALIA, AND DIET OF A SINGLE SPECIMEN

Résumé

This study describes the stranding record of the Pygmy Sperm Whale, Kogia breviceps, in Tasmanian waters, and the diet of a single individual. The Pygmy Sperm Whale is one of the most commonly stranded cetaceans in some parts of Australia, although it occurs infrequently in the Tasmanian stranding record, with only seven known stranding events. Dietary items were investigated from a single juvenile male Pygmy Sperm Whale stranded in southeast Tasmania. The recoverable diet consisted of approximately three kilograms of reconstructed cephalopod prey mass from at least 11 cephalopod species within nine families. Using reconstructed biomass, the most important family was Histioteuthidae (Histioteuthis atlantica and H. miranda: 29% of reconstructed biomass), followed by Ommastrephidae (unknown sp.: 27% of reconstructed biomass), Enoploteuthidae (Enoploteuthis sp): 25% of reconstructed biomass), Cranchiidae (Cranchia scabra and Teuthowenia pellucida), Chiroteuthidae (Chiroteuthis veranyi), Brachioteuthidae (Brachioteuthis linkovskyi), Neoteuthidae (Nototeuthis dimegacotyle), Pyroteuthidae (Pyroteuthis margaritifera) and Sepiolidae (Heteroteuthis sp.). Collection and analysis of biological material from Pygmy Sperm Whale strandings around Australia should be a high priority to better understand the ecology of this poorly known species.
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Dates et versions

hal-00919221 , version 1 (16-12-2013)

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  • HAL Id : hal-00919221 , version 1

Citer

Isabel Beasley, Yves Cherel, Sue Robinson, Emma Betty, Rosemary Gales. PYGMY SPERM WHALE (KOGIA BREVICEPS) STRANDING RECORD IN TASMANIA, AUSTRALIA, AND DIET OF A SINGLE SPECIMEN. Papers and Proceedings of the Royal Society of Tasmania, 2013, 147, pp.25-32. ⟨hal-00919221⟩

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