Abstract
Abstract An investigation was conducted into the significance of several aspects of diet on the growth and survival of intensively cultured American shad (Alosa sapidissima). Artemia (Artemia salina) nauplii were fed to larval American shad at rates of 12, 18, or 24 nauplii/fish daily. In addition, two commercially prepared diets (Ziegler AP-100 and Bio-Marine Artemia Flakes) were offered as a food supplement to larval fish that received 12 artemia nauplii/fish daily. The feeding rate of 12 nauplii/fish resulted in the lowest growth and survival. Feeding rates of 18 and 24 nauplii had mixed results with insignificant differences in growth and survival. Dry prepared diets (particularly diet AP-100) offered in combination with artemia nauplii enhanced larval fish survival. First-feeding larval American shad (10.4 mm long) accepted the prepared feed and it remained a major portion of the diet. Particle size appeared to have a major influence on acceptance of diets by American shad larvae.
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