Encyclopedia of Reproduction. Photoperiodism in Fish

TitleEncyclopedia of Reproduction. Photoperiodism in Fish
Publication TypeBook Chapter
Year of Publication2024
AuthorsFalcón, J, Muñoz-Cueto, JA
Book TitleEncyclopedia of Reproduction
Volume6
Edition3rd edition
PublisherElsevier
Abstract

Fish reproduction is a rhythmic process occurring at particular times of day and year. Photoperiod is the most predictable and powerful environmental synchronizer of reproduction and entrains biological clocks, which allow anticipating the variations of this environment. Temperature is another rhythmic factor used by fish to adjust their metabolic and physiological processes. The pineal organ plays a key role in transducing photoperiod and temperature cycles and controlling the daily and annual reproductive rhythms. We review here how the pineal photoreceptors integrate photo-thermo-periodic information, and produce rhythmic neural and neuroendocrine messengers, including melatonin, which modulate the daily and seasonal production of brain/pituitary/gonad hormones involved in fish reproduction.

 

Catégorie HCERES
CH - Book chapters
Publication coopération et recherche SUD
Non