Chloride Regulation at Low Salinities by Nereis Diversicolor (Annelida, Polychaeta)
Open Access
- 1 August 1970
- journal article
- Published by The Company of Biologists in Journal of Experimental Biology
- Vol. 53 (1) , 93-100
- https://doi.org/10.1242/jeb.53.1.93
Abstract
1. By studies of D2O exchange the apparent permeability of Nereis diversicolor to water has been shown to vary in response to changes of salinity. 2. The hourly water-exchange fraction drops from over 12 in SW nearly to 6 in fresh water. 3. Calculation of the net flux of water indicates potential urine volumes of 0.3 % of body weight/h in SW, a maximum of 2.8 % in 10 % SW, and a reduction to 2.1 % in fresh water. 4. It is calculated that, if such urine volumes are produced, the urine is probably hypotonic in chloride to the coelomic fluid at salinities of 25 % SW and lower.Keywords
This publication has 5 references indexed in Scilit:
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- Chloride Regulation at Low Salinities by Nereis Diversicolor (Annelida, Polychaeta)Journal of Experimental Biology, 1970
- Inorganic Components and Metabolism; Ionic and Osmotic Regulation: Annelida, Sipuncula, and EchiuraPublished by Elsevier ,1969
- OSMOTIC REGULATION AND ADAPTIVE REDUCTION OF WATER-PERMEABILITY IN A BRACKISH-WATER CRAB RHITHROPANOPEUS HARRISI (BRACHYURA, XANTHIDAE)The Biological Bulletin, 1967
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