Does constant photoperiod inhibit the onset of the reproductive cycle in northern pike (Esox lucius) males?

• Published in: Fish physiology and biochemistry Vol. 44; no. 1; pp. 301 - 310
• Main Authors: Ben Ammar, I., Milla, S., Missaoui, H., Ledoré, Y., Teletchea, F., Fontaine, P.
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.02.2018; Springer Nature B.V; Springer Verlag
• Subjects: Abiotic factors; Animal Anatomy; Animal Biochemistry; Animal Physiology; Biomedical and Life Sciences; Computer Science; Esox lucius; Fish; Freshwater & Marine Ecology; Histology; Life Sciences; Males; Morphology; Photoperiods; Reproductive cycle; Spermatozoa; Steroids; Temperature; Temperature effects; Testosterone; Zoology; Pike males; Constant photoperiod; Onset of reproductive cycle; onset of reproductive cycle; constant photoperiod

For most temperate and arctic fish species, photoperiod is the key abiotic factor determining the onset of the reproductive cycle, and, for many species, constant long photoperiod seems to have an inhibitory effect. Yet, there is no knowledge about the effect of photoperiod on the onset of the repro...