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Changes in lipids during simulated herbivorous feeding by the marine crustacean Neomysis integer

Published online by Cambridge University Press:  11 May 2009

Stuart A. Bradshaw ,
Sean C. M. O'Hara ,
Eric D. S Cornert  and
Geoffrey Eglinton
Stuart A. Bradshaw
Affiliation:
Organic Geochemistry Unit, University of Bristol, Cantock's Close, Bristol, England, BS8 1TS
Sean C. M. O'Hara
Affiliation:
Plymouth Marine Laboratory, Citadel Hill, Plymouth, PL1 2PB
Eric D. S Cornert
Affiliation:
Plymouth Marine Laboratory, Citadel Hill, Plymouth, PL1 2PB
Geoffrey Eglinton
Affiliation:
Organic Geochemistry Unit, University of Bristol, Cantock's Close, Bristol, England, BS8 1TS
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Abstract

A laboratory study simulating herbivorous feeding was carried out with the marine crustacean Neomysis integer (Leach) and the dinoflagellate Scrippsiella trochoidea (Stein). Analyses of the total fatty acids, sterols and fatty alcohols in the food and faecal material, and in the animal tissue, have allowed the detailed changes in the dietary lipids during feeding to be characterised.

The results show this feeding leads to a net decrease in total lipid in the material passing through the gut of the animal, particularly due to the bioassimilation of fatty acids. All fatty acid saturation classes are assimilated but the mono-unsaturated and particularly polyunsaturated fatty acids are preferentially assimilated over others. Herbivorous feeding does, however, lead to the quantitative and relative increase in ‘bacterial’-type odd C number branched-chain fatty acids in the faecal material.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 70 , Issue 1 , February 1990 , pp. 225 - 243
Copyright
Copyright © Marine Biological Association of the United Kingdom 1990

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