Observations on the effects of barite on the gill tissues of the suspension feeder Cerastoderma edule (Linné) and the deposit feeder Macoma balthica (Linné)

M. J. Barlow, P. F. Kingston

    Research output: Contribution to journalArticle

    Abstract

    Barite, an important component of offshore drilling muds, is shown to adversely affect the ctenidia of the suspension feeding bivalve, Cerastoderma edule and the deposit feeder, Macoma balthica. SEM observations showed that exposure to barite caused cilia to shorten and coagulate, and, in some extreme cases, cause the disintegration of the gill structure itself. Using a simple ciliary condition index (CCI) the impact of the barite was quantified and damage rates expressed. The bivalves were treated with daily doses of 1, 2, and 3-mm depth equivalents of barite. In all treatments significant damage to the gills was recorded although, in the case of the 1-mm dose rate, this did not occur for 4 days. In the other two treatments, damage was apparent within a day of exposure with 100% mortality occurring within 12 days. Macoma balthica appeared slightly more tolerant of exposure to barite than C. edule. Copyright © 2001 Elsevier Science Ltd.

    Original languageEnglish
    Pages (from-to)71-76
    Number of pages6
    JournalMarine Pollution Bulletin
    Volume42
    Issue number1
    DOIs
    Publication statusPublished - 2001

    Fingerprint

    Cerastoderma edule
    gills
    Bivalvia
    drilling
    cilia
    dosage
    barite
    tissues

    Keywords

    • Barite
    • Bivalves
    • Drilling mud
    • Offshore engineering
    • Pollution effects

    Cite this

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    title = "Observations on the effects of barite on the gill tissues of the suspension feeder Cerastoderma edule (Linn{\'e}) and the deposit feeder Macoma balthica (Linn{\'e})",
    abstract = "Barite, an important component of offshore drilling muds, is shown to adversely affect the ctenidia of the suspension feeding bivalve, Cerastoderma edule and the deposit feeder, Macoma balthica. SEM observations showed that exposure to barite caused cilia to shorten and coagulate, and, in some extreme cases, cause the disintegration of the gill structure itself. Using a simple ciliary condition index (CCI) the impact of the barite was quantified and damage rates expressed. The bivalves were treated with daily doses of 1, 2, and 3-mm depth equivalents of barite. In all treatments significant damage to the gills was recorded although, in the case of the 1-mm dose rate, this did not occur for 4 days. In the other two treatments, damage was apparent within a day of exposure with 100{\%} mortality occurring within 12 days. Macoma balthica appeared slightly more tolerant of exposure to barite than C. edule. Copyright {\circledC} 2001 Elsevier Science Ltd.",
    keywords = "Barite, Bivalves, Drilling mud, Offshore engineering, Pollution effects",
    author = "Barlow, {M. J.} and Kingston, {P. F.}",
    year = "2001",
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    volume = "42",
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    Observations on the effects of barite on the gill tissues of the suspension feeder Cerastoderma edule (Linné) and the deposit feeder Macoma balthica (Linné). / Barlow, M. J.; Kingston, P. F.

    In: Marine Pollution Bulletin, Vol. 42, No. 1, 2001, p. 71-76.

    Research output: Contribution to journalArticle

    TY - JOUR

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    AU - Barlow, M. J.

    AU - Kingston, P. F.

    PY - 2001

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    N2 - Barite, an important component of offshore drilling muds, is shown to adversely affect the ctenidia of the suspension feeding bivalve, Cerastoderma edule and the deposit feeder, Macoma balthica. SEM observations showed that exposure to barite caused cilia to shorten and coagulate, and, in some extreme cases, cause the disintegration of the gill structure itself. Using a simple ciliary condition index (CCI) the impact of the barite was quantified and damage rates expressed. The bivalves were treated with daily doses of 1, 2, and 3-mm depth equivalents of barite. In all treatments significant damage to the gills was recorded although, in the case of the 1-mm dose rate, this did not occur for 4 days. In the other two treatments, damage was apparent within a day of exposure with 100% mortality occurring within 12 days. Macoma balthica appeared slightly more tolerant of exposure to barite than C. edule. Copyright © 2001 Elsevier Science Ltd.

    AB - Barite, an important component of offshore drilling muds, is shown to adversely affect the ctenidia of the suspension feeding bivalve, Cerastoderma edule and the deposit feeder, Macoma balthica. SEM observations showed that exposure to barite caused cilia to shorten and coagulate, and, in some extreme cases, cause the disintegration of the gill structure itself. Using a simple ciliary condition index (CCI) the impact of the barite was quantified and damage rates expressed. The bivalves were treated with daily doses of 1, 2, and 3-mm depth equivalents of barite. In all treatments significant damage to the gills was recorded although, in the case of the 1-mm dose rate, this did not occur for 4 days. In the other two treatments, damage was apparent within a day of exposure with 100% mortality occurring within 12 days. Macoma balthica appeared slightly more tolerant of exposure to barite than C. edule. Copyright © 2001 Elsevier Science Ltd.

    KW - Barite

    KW - Bivalves

    KW - Drilling mud

    KW - Offshore engineering

    KW - Pollution effects

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