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Characteristics of suspensions of Kuwait oil and Corexit 7664 and their short-and long-term effects on Tisbe bulbisetosa (Copepoda: Harpacticoida)

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Abstract

A technique for preparing seawater suspensions of Kuwait oil and Corexit was developed. The resulting hydrocarbon concentrations were analysed by gas-chromatography and spectrofluorometric methods and the stability of the suspensions with time was determined. It was established that the suspensions have an effective stability from Days 3 to 15 after preparation, since in this period the concentration varies within a relatively narrow range. Adult female Tisbe bulbisetosa appeared to be quite tolerant of this type of hydrocarbon suspension, in short-term experiments, especially considering that the concentrations used in the bioassays were about 200 times higher than those measured in a relatively polluted area of the lagoon of Venice. Long-term effects on number of eggs produced, number of nauplii and hatching success for females of the third and fourth generations, subject to continuous exposure, were negligible compared with controls.

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Authors and Affiliations

  1. Istituto di Biologia del Mare, Consiglio Nazionale delle Ricerche, Venezia, Italy

    L. Dalla Venezia & V. U. Fossato

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  1. L. Dalla Venezia
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  2. V. U. Fossato
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Communicated by B. Battaglia, Padua

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Dalla Venezia, L., Fossato, V.U. Characteristics of suspensions of Kuwait oil and Corexit 7664 and their short-and long-term effects on Tisbe bulbisetosa (Copepoda: Harpacticoida). Mar. Biol. 42, 233–237 (1977). https://doi.org/10.1007/BF00397747

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  • DOI: https://doi.org/10.1007/BF00397747

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