Journal ArticleDOI
Fatty acid metabolism in the calanoid copepodParacalanus parvus: 1. Polyunsaturated fatty acids
Victor J. Moreno,Victor J. Moreno,Julia E. A. De Moreno,Julia E. A. De Moreno,Rodolfo R. Brenner +4 more
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In this paper, the metabolic fate of radioactive linoleate and α-linolenate administered to the South Atlantic copepodParacalanus parvus was studied.Abstract:
The metabolic fate of radioactive linoleate and α-linolenate administered to the South Atlantic copepodParacalanus parvus was studied. The wild copepod was able to incorporate the labeled acids dissolved in seawater. The radioactive linoleate was elongated to 20∶2ω6 and 22∶2ω6 and desaturated by a Δ6 desaturase to 18∶3ω6. α-Linolenate was also desaturated by a Δ6 desaturase to 18∶4ω3 and elongated to 20∶3ω3. The copepod was able to convert α-18∶3 to 20∶5ω3 and 22∶6ω3.read more
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Book ChapterDOI
Fatty acid trophic markers in the pelagic marine environment.
TL;DR: 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 and is based on stratification.
Journal ArticleDOI
Tracing carbon flow in an arctic marine food web using fatty acid-stable isotope analysis.
Suzanne M. Budge,Matthew J. Wooller,Alan M. Springer,Sara J. Iverson,C. P. McRoy,George J. Divoky +5 more
TL;DR: A novel approach to food web studies by combining the two established methods of stable isotope analysis and fatty acid (FA) analysis is investigated, determined the C isotopic composition of individual diatom FA and traced these biomarkers in consumers, and demonstrated the potential value of compound-specific isotopeAnalysis of marine lipids to trace C flow through marine food webs.
Journal ArticleDOI
Status and recommendations on marine copepod cultivation for use as live feed
Guillaume Drillet,Guillaume Drillet,Stephane Frouel,Mie Hylstofte Sichlau,Per Meyer Jepsen,Jonas Kring Højgaard,Alamgir Kabir Joarder,Benni Winding Hansen +7 more
TL;DR: Suggestions to capture value from a copepod product include: 1) optimize cultures by automation and implement recirculation technology for improving water quality; 2) use harpacticoid and cyclopoid copepods in industries that can produce large amounts of these prey on site at any given time.
Journal ArticleDOI
Fatty acid metabolism in young oysters, Crassostrea gigas: polyunsaturated fatty acids
M. J. Waldock,D. L. Holland +1 more
TL;DR: Analysis of the oyster fatty acids showed that oysters were able to incorporate some of the dietary14C label into long-chain fatty acids not supplied in the diet, e.g., C20 and C22 mono- and polyunsaturated fatty acids, and particularly 20∶5ω3.
Journal ArticleDOI
Biochemical and technical observations supporting the use of copepods as live feed organisms in marine larviculture
Guillaume Drillet,Niels O. G. Jørgensen,Thomas Flarup Sørensen,Hans Ramløv,Benni Winding Hansen +4 more
TL;DR: In this study, the sizes, weight and biochemical contents of two copepods and one rotifer species raised on similar algal food conditions were compared and the FAA pattern of the preys tended to be species-speci¢c and its implications from an aquaculture point of view is discussed.
References
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Journal ArticleDOI
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TL;DR: In this paper, the authors described a simplified version of the method and reported the results of a study of its application to different tissues, including the efficiency of the washing procedure in terms of the removal from tissue lipides of some non-lipide substances of special biochemical interest.
Journal ArticleDOI
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Book
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Donald C. Malins,John R. Sargent +1 more
Journal ArticleDOI
Importance of wax esters and other lipids in the marine food chain: Phytoplankton and copepods
TL;DR: Two different metabolic pools are postulate to explain the origin of these long chain alcohols - polyunsaturated alcohols of the wax esters and phospholipid fatty acids, which were not affected by changes in the amount or type of food, probably because of their structural function.
Journal ArticleDOI
The oxidative desaturation of unsaturated fatty acids in animals
TL;DR: The 6-desaturation of fatty acids would be the principal regulatory step in the biosynthesis of polyunsaturated fatty acids in rat microsomes.