Fatty acid composition of the lipids of Puffinus tenuirostris (Temminck) in relation to its diet |
| |
Authors: | David G Bishop David A Ritz Graham W Hosie Janette R Kenrick June Olley |
| |
Institution: | Plant Physiology Unit, CSIRO Division of Food Research and School of Biological Sciences, Macquarie University, North Ryde, Sydney, N.S.W. 2113, Australia;Department of Zoology, The University of Tasmania, Hobart, 7001, Australia;Plant Physiology Unit, CSIRO Division of Food Research and School of Biological Sciences, Macquarie University, North Ryde, Sydney, N.S.W. 2113, Australia;Tasmanian Food Research Unit, CSIRO Division of Food Research, Hobart, 7000, Australia |
| |
Abstract: | The fatty acid composition of lipids isolated from the depot fat, stomach contents, and proventricular oil of adult and chick Puffinus tenuirostris (Temminck) has been analysed. The diet of both adults and chicks is almost exclusively derived from the euphausiid Nyctiphanes australis Sars, and an attempt was made to determine whether dietary lipid affects the composition of depot fat, and whether individual fatty acids in the stomachs and proventricular oil can be used as markers for the origin of the diet. An apparent selectivity in the deposition of fatty acids in the fat depots can be explained by the conversion of fatty alcohols, derived from the euphausiid wax ester, into fatty acids of equivalent chain length and unsaturation. Hexadecadienoic acid appeared to be the only possible marker fatty acid from the euphausiid, but wide variations in its level limits its usefulness as a reliable index of the diet of Puffinus tenuirostris. |
| |
Keywords: | To whom correspondence should be addressed |
本文献已被 ScienceDirect 等数据库收录! |
|