Journal ArticleDOI
A polyunsaturated hydrocarbon (3, 6, 9, 12, 15, 18-heneicosahexaene) in the marine food web
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TLDR
The presence of HEH in marine vertebrates suggests that, within the animal lipids, hydrocarbons are remarkably stable.Abstract:
An olefinic hydrocarbon (all-cis-3,6,9,12,15,18-heneicosahexaene, “HEH”)_was islated from marine planktonic plants and animals. Its structure was established by ultraviolet, infrared and mass spectrometry in combination with chemical techniques. The olefin occurs in many species of marine planktonic algae and is probably derived from the corresponding docosahexaenoic acid. Rhincalanus nasutus accumulates HEH nonselectively from its algal food together with the triglyceride lipids. Other, related copepods contain little or no HEH even when grown in cultures of algae that provide R. nasutus with that olefin. The presence of HEH in marine vertebrates suggests that, within the animal lipids, hydrocarbons are remarkably stable. This work has practical implications for studies of the marine food web and of marine pollution with persistent chemicals.read more
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Fatty acid and lipid composition of 10 species of microalgae used in mariculture
TL;DR: Fatty acids were four to six times more abundant than Chl a in most species but triacyglycerols were abundant only in Chaetoceros gracilis, Isochrysis sp.
Journal ArticleDOI
Hydrocarbons of marine phytoplankton
TL;DR: Hydrocarbon analysis of marine algae should provide a tool for the investigation of the dynamics of the marine food chain and provides the background needed for distinguishing between hydrocarbons of recent biogenic origin and hydrocarbon pollutants from fossil fuels.
Journal ArticleDOI
Microbial lipids of an intertidal sediment—I. Fatty acids and hydrocarbons
TL;DR: In this article, a detailed study was made of the solvent extractable monocarboxylic, dicarboxylated and hydroxylated fatty acids and n-alkanes in a surface intertidal sediment, and the distributions compared to microorganisms cultured from the sediment.
Journal ArticleDOI
Polycyclic aromatic hydrocarbons in the environment: homologous series in soils and recent marine sediments☆
W. W. Youngblood,Max Blumer +1 more
TL;DR: In this article, it is suggested that polycyclic aromatic hydrocarbons are formed in natural fires, are dispersed and mixed by air transport and eventually deposited into surface sediments.
Journal ArticleDOI
Long-chain alkenes and alkenones in the marine coccolithophorid Emiliania huxleyi
TL;DR: Analysis of three different forms of the alga indicated that these ketones are formed throughout the growth cycle with only minor variations in the relative proportions of the individual compounds, which may be useful biological markers for E. huxleyi input to sediments.
References
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Journal ArticleDOI
Studies of marine planktonic diatoms: i. cyclotella nana hustedt, and detonula confervacea (cleve) gran.
TL;DR: Bacteria-free clones of the small centric diatom Cyclotella nana Hustedt were isolated, three from estuarine localities, one from Continental Shelf waters, and one from the Sargasso Sea as mentioned in this paper.
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Marine Phytoplankter Fatty Acids
TL;DR: It is suggested that 5,8,11,14,17-eicosapentaenoic acid, found to be a common algal longer-chain polyunsaturated fatty acid, is characteristically deposited in the lipids of filter-feeders ingesting unicellular algae.
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DISTRIBUTION OF n-PARAFFINS IN MARINE ORGANISMS AND SEDIMENT1
R. C. Clark,M. Blumer +1 more
TL;DR: Differences in the hydrocarbon distribution patterns of various classes of benthic algae may be of taxonomic value and suggest that the normal paraffins of recent marine sediments are largely derived from sources other than the organisms studied.
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Hydrocarbon pollution of edible shellfish by an oil spill
Max Blumer,G. Souza,J. Sass +2 more
TL;DR: Gas chromatography demonstrates the presence of No. 2 fuel oil in the sediments of the affected area and in whole oysters Crassostrea virginica and in the adductor muscle of the scallop Aequipecten irradians.
Journal ArticleDOI
Pristane in Zooplankton.
TL;DR: The hydrocarbon pristane (2,6,10,14-tetramethylpentadecane) occurs in unusually high concentrations in the three copepods Calanus finmarchicus, C. glacialis, and C. hyperboreus, and appears to be the primary source of the pristsane in liver oils of sharks and whales.