Sexual photoperiodicity of the cyprinid fish, Notropis bifrenatus (Cope), in relation to the phases of its annual reproductive cycle.
D000223:Adaptation, Psychological; D000818:Animals; D003530:Cyprinidae; D005399:Fishes; D008027:Light; D012098:Reproduction; D012727:Sex Characteristics; D012725:Sexual Behavior
FISH; LIGHT/effects; REPRODUCTION; SEX CHARACTERISTICS