Melatonin is an evolutionarily conserved molecule that serves a time-kee** function in
various species. In vertebrates, melatonin is produced predominantly by the pineal gland …

Arylalkylamine N-acetyltransferase controls daily changes in melatonin production by the
pineal gland and thereby plays a unique role in biological timing in vertebrates …

Abstract Neurons using serotonin (5-HT) as neurotransmitter and/or modulator have been
identified in the central nervous system in representatives from all vertebrate clades …

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 …

Alternation between day and night is a predictable environmental fluctuation that organisms
use to time their activities. Since the invention of artificial lighting, this predictability has been …

The zebrafish represents a fascinating model for studying key aspects of the vertebrate
circadian timing system. Easy access to early embryonic development has made this …

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

Teleost fish are more diverse than any other vertebrate group, and yet only a limited number
of species are fished and farmed globally. Efforts to expand the quantity and diversity of fish …

The zebrafish has become an excellent model for the study of human diseases because it
offers many advantages over other vertebrate animal models. The pineal gland, as well as …

The pineal gland plays an essential role in vertebrate chronobiology by converting time into
a hormonal signal, melatonin, which is always elevated at night. Here we have analyzed the …