Comparative studies of inorganic substances in the blood of fishes from the Scagerac Sea |
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Authors: | Ragnar Fäunge Ulf Lidman Åke Larsson |
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Institution: | Department of Zoophysiology, University of Göteborg, Fack, S-400 33 Göteborg, Sweden;The National Environmental Protection Board, Brackish Water Toxicology Laboratory Studsvik, Fack, 611 01 Nyköping, Sweden |
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Abstract: | The concentrations of the main plasma inorganic electrolytes Na+, K+, Ca2+, Mg2+, Cl- and and PO43- have been determined for different orders of marine fishes. For Na+ and Cl- a typical decrease was found when passing from cyclostomes, holocephalans and elasmobranchs to teleosts. The concentrations of K+, Ca2+ and Mg2+ showed a similar trend except that there was a rise in the teleost group, which showed a large range of variation for these three ions. In the case of PO43- no significant differences between groups were found. |
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