Photoperiodic mechanisms and rhythms of reproduction in the female rainbow trout

  title={Photoperiodic mechanisms and rhythms of reproduction in the female rainbow trout},
  author={James Duston and Dr. Niall Bromage},
  journal={Fish Physiology and Biochemistry},
The present work investigates the importance of circadian and circannual rhythms in the photoperiodic control of reproduction in the rainbow trout. Maintenance of groups of 20–30 female trout under continuous light (LL), constant long (18L:6D) or short (6L:18D) days and conditions of constant temperature (8.5–9.0°C) and feeding rates (0.5% body weight, day−1), starting in February, produced markedly different spawning periodicities during the first and subsequent years of treatment. At the end… CONTINUE READING

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