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Journal Article

Freezing Resistance in Some Antarctic Fishes

Arthur L. DeVries and Donald E. Wohlschlag
Science
New Series, Vol. 163, No. 3871 (Mar. 7, 1969), pp. 1073-1075
Stable URL: http://www.jstor.org/stable/1726105
Page Count: 3
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Abstract

Measurements of serum freezing points in three Antarctic marine fishes indicated that they do not freeze in the -1.87° C seawater because their blood is isosmotic to seawater. Concentrations of sodium chloride, urea, and free amino acids in the serum accounted for only half of the freezing-point depression of the serum. A protein containing carbohydrate was isolated which accounted for 30 percent of the freezing-point depression of the serum.

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