annales de biologie animale biochimie biophysique · 1978 · 24 citations · 3 references
Natural ResourcesEcologyFisheriesFish BiologyFish EcologyFisheries BiologyFish ReproductionFish Reproductive BiologyPhotoperiodic EndocrinologySeasonal ReproductionSpawning BiologySpawning DynamicsFish Spawning DynamicsPhotoperiod Effects On ReproductionPhotoperiod RegulationPhotoperiodic AdaptationPhotoperiodic Reproductive ControlPhotoperiodic Signal TransductionSeasonal Spawning Cycles
Three groups of coho salmon were reared under artificially controlled photo- period regimes. One group was exposed to a normal first, second and third year photoperiod cycle. The other two groups were maintained on a normal first but modified second year cycle designed to advance or delay spawning by 120 days. The third cycle was of normal duration but shifted out of phase to maintain the time differences that had been established during the second altered photoperiod cycle.
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J. E. M., W. B. Scott, E. J. Crossman · Copeia · 1974 · 2.4K citations
Life Sciences, Ecology, Zoology +12