Freezing resistance in some Antarctic fishes

AL DeVries, DE Wohlschlag - Science, 1969 - science.org
AL DeVries, DE Wohlschlag
Science, 1969science.org
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.
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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