Unsaturated hydrocarbons in muscle and hepatopancreas of two crab species, Chionoecetes opilio and Hyas coarctatus

J. Hellou*, C. Upshall, D. Taylor, P. O'Keefe, V. O'Malley, Teofilo Abrajano

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    14 Scopus citations

    Abstract

    Polycyclic aromatic hydrocarbon (PAH) contaminants and biogenic unsaturated hydrocarbons were identified in muscle and hepatopancreas of two crab species, collected nearshore and offshore the island of Newfoundland. A correlation was made between the compounds present in hepatopancreas and in surface sediments collected from Conception Bay, Newfoundland. The bioaccumulation of unsaturated compounds differed slightly with species, while a large variation was noticed between tissues. Relatively greater levels of fluorescing compounds (PAC) were present in hepatopancreas than in muscle of the spider crab (Hyas coarctatus) or snow crab (Chionoecetes opilio), while a larger number of PAH was also present in that tissue. The unsaturated hydrocarbons fraction separated from the hepatopancreas extracts was quantified in terms of gravimetry, by ultraviolet/fluorescence (uv/f, four standards), gas chromatography-mass spectrometry (GC-MS) analysis of a series of 25 PAC (GC-MS-SIM), as well as by the analysis of the predominant compounds (GC-MS-TIC). Results obtained by gravimetry were highest (20 μg g-1, dry wt), levels of total fluorescing compounds (uv/f, 1.1 μg g-1, in terms of chrysene units), of four unsaturated biogenic hydrocarbons (< 10 μg g-1) and of detectable parental and alkylated PAH (0.67 μg g-1) were relatively lower. As could be expected, these various concentrations in hepatopancreas samples were not equivalent, but reasonably complementary.

    Original languageEnglish (US)
    Pages (from-to)482-488
    Number of pages7
    JournalMarine Pollution Bulletin
    Volume28
    Issue number8
    DOIs
    StatePublished - Jan 1 1994

    ASJC Scopus subject areas

    • Oceanography
    • Aquatic Science
    • Pollution

    Cite this