Lab Mates

To the page of
Invited researchers

Park, Yong Ju (Korea)

He is now a COE postdoc. He studies on influence of cues in reef environments on exertion of rhythmicity (circadian and circalunar) in lunar-synchronized spawner in coral reefs. His present focus is on melatonin receptors (MR1a, b and c).

Sugama, Nozomi (Japan)

She is interested in hormonal regulation of vitellogenin synthesis in hepatocytes. Using a technique of primary hepatocyte cultures, she examines vitellogenin synthesis and vitellogenin gene expression after hormone treatmens.

Nikaido, Yoshiaki (Japan)

He studies about effect of light intensity on melatonin fluctuation in the blood circulation. Using a canulation technique, he takes blood samples from each fish and examines changes in melatonin individually. He is also interested in moonlight intensity on changes in plasma melatonin level.

Nakama, Chihiro (Japan)

She studies on semi-lunar cycle in two Apogonidae species. She collects the fish weekly and monthly, and observes changes in gonadal development histologically. Comparisons between spawning activities and aquatic environments are done.

Abu Bapary (Bangladesh)

He studies on involvement of environmental factors in coral reef in initiation of reproductive activity in damselfishes.

Takeuchi, Uki (Japan)

He is interested in perception and utlization of reef environments by fishes. He starts cloning of clock-related peptide genes in fishes.

Itho, Hitomi (Japan)

She is interested in locomotor activity of tropical wrasse and studying on relationship between expression of clock genes and daily activity in threespot wrasse.

Shibata, Yoriko (Japan)

She is interested in spawning activity of three-spotted wrasse, because the fish spawns around high tide during daytime.

Shimomura, Sayoko (Japan)

She is interested in daily spawning rhythm ans studies on the expression of melatonin receptors in the pituiary of rabbtfishes.

Inoue, Hiroyuki (Japan)

He started to study the reproductive and spawning cycle of tropical damselfish using histological techniques.

Kudo, Sayaka (Japan)

She started to study mechanisms of daily spawning rhythm in tropical wrasses that synchronously spawn around daytime hightide.

Esaka, Yuriko (Japan)

She is interested in daily rhythm of marine invertebrates. She started to study it from ecological aspects.

Mizuno, (Japan)

He studies on perceptionn of moonlight in groupers that spawns once a month around the full moon. He will measure plasma levels of melatonin.