Advances in marine biology. Volume 46 [electronic resource] / | University of Toronto Libraries
At higher trophic levels these markers of herbivory are obscured as the degree of carnivory increases, and as the fatty acids originate from a variety of dietary sources. Such differences are highlighted in a PLS regression analysis of fatty acid and fatty alcohol compositional data the components of wax esters accumulated by many marine organisms of key Arctic and Antarctic herbivorous, omnivorous and carnivorous copepod species. The analysis emphasizes how calanoid copepods separate from other copepods not only by their content of microalgal group specific FATM, but also by their large content of long-chain monounsaturated fatty acids and alcohols.
These monounsaturates have been used to trace and resolve food web relationships in, for example, hyperiid amphipods, euphausiids and fish, which may consume large numbers of calanoid copepods. Results like these are extremely valuable for enabling the discrimination of specific prey species utilized by higher trophic level omnivores and carnivores without the employment of invasive techniques, and thereby for identifying the sources of energetic reserves.
A conceptual model of the spatial and temporal dominance of group-specific primary producers, and hence the basic fatty acid patterns available to higher trophic levels is presented. Tell us about a web accessibility problem.
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Advances in Marine Biology, Volume 46
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Marine biology. More Details added author. Fuiman, Lee A.
Southward, Alan J. Tyler, Peter A.
Advances in Marine Biology: Volume 59
Advances in marine biology ; A Look Inside Summaries. Main Description. Advances in Marine Biology was first published in Now edited by A. Fuiman University of Texas, USA , the serial publishes in-depth and up-to-date reviews on a wide range of topics which will appeal to postgraduates and researchers in marine biology, fisheries science, ecology, zoology, oceanography.
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