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Egg volume regulation in Hediste (Nereis) diversicolor eggs: A rapid bioassay

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Abstract

Hediste diversicolor eggs took in water osmotically in low salinity and lost water to the media in high salinity. Copper ions interfered with the ability of the eggs in regulating their volume. Elevated egg permeability was induced by Cu to the eggs. Two forces were active, namely, the osmotic pressure due to salinity and Cu ion pressure which antagonized the osmotic pressure. The eggs are iso-osmotic at 7.63%o salinity.

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Author notes

  1. P. T. E. Ozoh

    Present address: Biology Programme, Abubakar Tafawa Balewa University, P.M.B. 0248 Bauchi, Bauchi State, Nigeria

Authors and Affiliations

  1. Institute of Estuarine and Coastal Studies, School of Biological Sciences, University of Hull, HU 6 7RX, Great Britain

    P. T. E. Ozoh

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Ozoh, P.T.E. Egg volume regulation in Hediste (Nereis) diversicolor eggs: A rapid bioassay. Water Air Soil Pollut 49, 231–240 (1990). https://doi.org/10.1007/BF00507066

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  • DOI: https://doi.org/10.1007/BF00507066

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