Seasonality is an important adaptive trait in temperate fish species as it entrains or regulates
most physiological events such as reproductive cycle, growth profile, locomotor activity and …

Melatonin is a much conserved feature in vertebrates that plays a central role in the
entrainment of daily and annual physiological rhythms. Investigations aiming at …

Reproduction in most fish is seasonal or periodic, and the spawning occurs in an
appropriate season to ensure maximum survival of the offspring. The sequence of …

Reproduction in fish is cyclical and timed to guarantee the survival of the offspring. Seasonal
variations in reproductive hormones of fish have been deeply investigated in fish over the …

Fish have evolved a biological clock to cope with environmental cycles, so they display
circadian rhythms in most physiological functions including stress response. Photoperiodic …

Kisspeptin, a novel neuropeptide product of the Kiss1 gene, activates the G protein-coupled
membrane receptor G protein-coupled receptor 54 (now termed Kiss1r). Over the last 15 …

Recent studies on several fish species, especially carp, implicated pineal hormone
melatonin (N-acetyl-5-methoxytryptamine) as a potent candidate in the regulatory …

Seasonality is a common feature of teleost reproduction and is most marked at higher
latitudes. Seasonal cycles are principally entrained by photoperiod and temperature but a …

Most organisms modulate their reproductive activity responding to day length by the
nocturnal release of melatonin by the pineal gland. This hormone is also responsible for …

Melatonin, a hormonal output signal of vertebrate circadian clocks, contributes to
synchronizing behaviors and neuroendocrine regulations with the daily and annual …