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Tolerance of some cirripede nauplii to fluctuating salinities

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Abstract

The effects of fluctuating salinity on the mortality of newly released nauplii of three species of barnacle, Elminius modestus (Darwin), Balanus balanoides (L) and B. hameri (Ascanius) have been measured. The larvae were exposed to three different types of salinity regime; in all cases, a regime which fluctuated gently between full-strength sea water and a reduced concentration was found to be least damaging. The contributions of the abruptness of salinity shock, and the degree of exposure to reduce salinity, are considered as factors influencing mortality. Survival depends upon the interaction of both these factors, but the abruptness of the shock which the barnacles receive is of major importance in determining their survival range.

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Authors and Affiliations

  1. N.E.R.C. Unit of Marine Invertebrate Biology, Marine Science Laboratories, Menai Bridge, Gwynedd, N. Wales, UK

    D. F. Cawthorne

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  1. D. F. Cawthorne
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Communicated by J. Mauchline, Oban

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Cawthorne, D.F. Tolerance of some cirripede nauplii to fluctuating salinities. Mar. Biol. 46, 321–325 (1978). https://doi.org/10.1007/BF00391403

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  • DOI: https://doi.org/10.1007/BF00391403

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