Dorosoma cepedianum (Lesueur, 1818)
American gizzard shad
Species recognized by R Froese & D Pauly (eds),
in 
Table Of Contents
Behavior
During the first year of Dorosoma cepedianum's life, the juveniles live in a school together, making the shad more susceptible to larger prey. After this year, the group separates and live solitary lives until it is spawning season again. This fish tends to migrate towards brackish waters sometimes, but is not nomadic for the most part. It will, however, move according to environmental conditions. Also, throughout its life, Dorosoma cepedianum is nocturnal. As an adult, there are not a lot of predators of Dorosoma cepedianum, but there are bird predators and larger fish predators of the larval and juvenile stage gizzard shad. This fish matures and grows very quickly, so these predators will not present a problem very long.
(Konrad 2001, SCBASS Federation 2001, Klingel 1990)
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