Lau, Danny C P
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences
- Umeå University
Abstract
Algae-produced long-chain polyunsaturated fatty acids (LC-PUFA; with >= 20 carbon atoms) are key biomolecules for consumer production and animal health. They are transferred to higher trophic levels and accumulated in food chains. However, LC-PUFA accumulation in consumers and their trophic transfer vary with the diet quality and the physiological demand for LC-PUFA of consumers. The goal of this study was to investigate spatial and taxonomic differences in LC-PUFA retention of coastal fish predators that potentially differ in their habitat use (benthic versus pelagic) and prey quality. We analyzed the fatty acid (FA) composition of common fish species, namely roach and European perch, as well as their potential prey from benthic and pelagic habitats in three bays of the northern Baltic Sea. We then assessed whether the fish LC-PUFA retention differed between species and among the study bays with different diet quality, that is, LC-PUFA availability. Our data indicated taxon-specific differences in the retention of LC-PUFA and their precursor FA in fish (i.e., short-chain PUFA with
Keywords
Baltic Sea; benthic macroinvertebrates; DHA; perch; polyunsaturated fatty acids; roach; trophic transfer; zooplankton
Published in
Ecology and Evolution
2023, volume: 13, number: 6, article number: e10158
Publisher: WILEY
SLU Authors
UKÄ Subject classification
Ecology
Publication identifier
- DOI: https://doi.org/10.1002/ece3.10158
Permanent link to this page (URI)
https://res.slu.se/id/publ/122701