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Journal of Experimental Biology 61,455-461 (1974)
Published by Company of Biologists 1974

Thermoacclimatory Variation in the Haemoglobin Systems of Goldfish (Carassius Auratus) and Rainbow Trout (Salmo Gairdneri)

A. H. HOUSTON 1 and D. CYR 1

1 Department of Biological Sciences, Brock University, St Catharines, Ontario, L2S 3A1 Canada

Significant increases in total haemoglobin concentrations, and microhaematocrit values were associated with acclimation of rainbow trout and goldfish to increased temperature. Goldfish held at 2°C were characterized by two haemoglobin components, whereas those acclimated to 20° and 35°C exhibited three. Nine haemoglobin variants were observed in trout at 2°, 10° and 18°C. The data provide evidence that both species selectively alter the concentrations of specific haemoglobin fractions during the thermoacclimatory process.

Submitted on May 6, 1974




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© The Company of Biologists Ltd 1974