SEAFDEC/AQDINSTITUTIONAL REPOSITORY
    • Login
    View Item 
    •   SEAFDEC/AQD Institutional Repository Home
    • 03 SEAFDEC/AQD External Publications
    • Journal Articles, Conference Papers and Book Chapters by SEAFDEC Staff
    • Journal Articles
    • View Item
    •   SEAFDEC/AQD Institutional Repository Home
    • 03 SEAFDEC/AQD External Publications
    • Journal Articles, Conference Papers and Book Chapters by SEAFDEC Staff
    • Journal Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Sulphide tolerance and adaptation in the California killifish, Fundulus parvipinnis, a salt marsh resident

    • Global styles
    • APA
    • Elsevier - Harvard
    • Vancouver
    • MLA
    • Help
    Thumbnail
    View/Open
    Request a copy
    Date
    1993
    Author
    Bagarinao, Teodora ORCID
    Vetter, R. D.
    Page views
    990
    Metadata
    Show full item record

    Cited times in Scopus

    
    
    Share 
     
    Abstract
    Hydrogen sulphide is a toxicant naturally produced in hypoxic marine sediments, hydrocarbon and brine seeps and hydrothermal vents. The California killifish, a salt marsh resident, is remarkably tolerant of sulphide. The 50% lethal concentration is 700 μM total sulphide in 96 h, and 5 mM in 8 h (determined in flow-through, oxygenated sea water). Killifish exposed to sulphide produce thiosulphate which accumulates in the blood. The cytochrome c oxidase (a major site of toxicity) of the killifish is 50% inhibited by <1 μM sulphide. Killifish liver mitochondria are poisoned by 50–75 μM sulphide but can oxidize 10–20 μM sulphide to thiosulphate. Sulphide causes sulphhaemoglobin formation (and impairment of oxygen transport) at 1–5 mM in vitro and to a small extent at 2 mM in vivo. Killifish blood neither catalyses sulphide oxidation significantly nor binds sulphide at environmental (low) sulphide concentrations. Exposure to 200 μM and 700 μM sulphide over several days causes significant increases in lactate concentrations, indicating shift to anaerobic glycolysis. However, individuals with the most lactate die. In terms of diffusible H2S, the killifish can withstand concentrations two to three orders of magnitude greater than would poison cytochrome c oxidase. The high sulphide tolerance of the killifish, particularly of concentrations typical of salt marshes, can be explained chiefly by mitochondrial sulphide oxidation. Sulphide tolerance and mitochondrial sulphide oxidation in the killifish have a constitutive basis, i.e. do not diminish in fish held in the laboratory in sulphide-free water for 1–2 months, and are improved by prior acclimation.
    URI
    http://hdl.handle.net/10862/1405
    Suggested Citation
    Bagarinao, T., & Vetter, R. D. (1993). Sulphide tolerance and adaptation in the California killifish, Fundulus parvipinnis, a salt marsh resident. Journal of Fish Biology, 42(5), 729-748.
    DOI
    10.1111/j.1095-8649.1993.tb00381.x
    Type
    Article
    ISSN
    0022-1112
    Subject
    Biochemical composition; Blood; Detoxification; Ecophysiology; Enzymatic activity; Enzyme inhibitors; Fish physiology; Hydrogen sulphide; Salt marshes; Toxicity tolerance; Fundulus parvipinnis
    Collections
    • Journal Articles [1102]


    © SEAFDEC/AQD  2021
    Contact Us | Send Feedback
     

     

    Browse

    All of SAIRCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsKeywordsThis CollectionBy Issue DateAuthorsTitlesSubjectsKeywords

    My Account

    LoginRegister

    Statistics

    View Usage Statistics

    © SEAFDEC/AQD  2021
    Contact Us | Send Feedback
     

     

    Export citations

    Export the current results of the search query as a citation list. Select one of the available citation styles, or add a new one using the "Citations format" option present in the "My account" section.

    The list of citations that can be exported is limited to items.

    Export citations

    Export the current item as a citation. Select one of the available citation styles, or add a new one using the "Citations format" option present in the "My account" section.

    Export Citations

    EXTERNAL LINKS DISCLAIMER

    This link is being provided as a convenience and for informational purposes only. SEAFDEC/AQD bears no responsibility for the accuracy, legality or content of the external site or for that of subsequent links. Contact the external site for answers to questions regarding its content.

    If you come across any external links that don't work, we would be grateful if you could report them to the repository administrators.

    Click DOWNLOAD to open/view the file. Request a copy in case the link we provided don't work.

    Download

    DOCUMENT REQUEST NOT AVAILABLE

    This publication is still available (in PRINT) and for sale at AQD bookstore. The library is currently restricted to send PDF of publications that are still for sale.

    You may contact bookstore@seafdec.org.ph or visit AQD bookstore for orders.

    FILE UNDER EMBARGO

    This file associated with this publication is currently under embargo. This will be available for download after the embargo date.