1972•Journal of the Fisheries Research Board of CanadaRequires access

Food Availability and Consumption by Young Connecticut River Shad Alosa sapidissima

Raymond C. Levesque, Roger J. Reed

Abstract

Food habits of young American shad (Alosa sapidissima) were studied in the Connecticut River above Holyoke, Massachusetts, 1969. Diurnal feeding data revealed a peak in stomach content volume at 8:00 PM during midsummer. Larval shad fed mainly on aquatic crustaceans and tendipedid larvae and pupae. Juveniles ingested the most abundant organisms: crustaceans, tendipedid larvae and pupae, hydropsychid larvae and adult insects. Electivity data indicated positive selection for tendipedid pupae and crustaceans and negative selection for hydropsychid larvae and tendipedid larvae. Selection of Trichoptera larvae by young shad in significant amounts was documented for the initial time.

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Key concepts: Alosa, Larva, Pupa, Crustacean, Fishery, Biology, Instar, Ecology