Sexual photoperiodicity of the cyprinid fish, Notropis bifrenatus (Cope), in relation to the phases of its annual reproductive cycle

@inproceedings{Harrincton1957SexualPO,
  title={Sexual photoperiodicity of the cyprinid fish, Notropis bifrenatus (Cope), in relation to the phases of its annual reproductive cycle},
  author={Robert Whiting Harrincton},
  year={1957}
}