Abstract

The fat content and condition factor of American shad (Alosa sapidissima) and hickory shad (A. mediocris) in the Altamaha River drainage in Georgia are analyzed. The fat content of these anadromous species ranged from 5.1 to 17.8% for American shad and from 3.0 to 12.9% for hickory shad. In contrast to Pacific salmon (Oncorhynchus), fat content did not decrease with distance upstream, probably because of he relatively short and easy passage. The likely decrease in fat content with spawning was not statistically demonstrable because of the small number of spent individuals analyzed. Condition factor was not consistently related to fat content.

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