The Pineal Organ and Circadian Rhythms of Fishes

摘要: Most fishes living under natural conditions express daily rhythms in their behaviour, physiology and biochemistry. Much of what do is temporally organized with respect to the environmental day-night cycle. Investigations timing diel on either a or seasonal basis should consider four major classes criteria: (i) endogenous (circadian) rhythms; (ii) photoperiod; (iii) photoreceptive and; (iv) specific ecological behavioural characteristics species being investigated. The latter category includes responses various chemical physical factors that are discussed this volume. An appreciation circadian controls crucial fully understanding evolutionary history, ontogeny, physiology,