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Biol Bull 110: 300-305. (June 1956)
© 1956 Marine Biological Laboratory
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ON REGULATION OF CONCENTRATION AND CONTENT OF CHLORIDE IN GOLDFISH

C. BARKER JØRGENSEN 1 and PER ROSENKILDE 1

1 Laboratory of Zoophysiology, University of Copenhagen, Copenhagen, Denmark

Daily changes in chloride content and weight of undisturbed starving goldfish were followed during several weeks. Uptake or loss of chloride often continued for several days or even weeks at the time. Up to 83 and 89 per cent increases in chloride content were measured. Maximum daily gains were 17 per cent, and losses 22 per cent of total chloride content. A statistically significant correlation was found between daily chloride and weight changes. Retention or excretion of 150 to 238 µeq. Cl was followed by retention or excretion of one ml. water.






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Copyright © 1956 by the Marine Biological Laboratory.