Research

Interest

I'm interested in phenomena related to disciplines like Ethology, Sclerochronology, Population Ecology, and Community Ecology.  I'm trying to understand how could intensive changes of environments involved in the life history affect parity, plasticity, and migration of organisms, or trophic cascade of coastal community. I'm mainly focusing on "residency/migration", "diadromy" between rivers and the ocean, and "amphibious life-history" between estuary and on-the-mudflat, of "euryhaline fishes" in rivers, estuaries, and semi-closed bays.

Fishes

•    Anguiliformes (Conger eels) and Anguillid eels (Anguilla japonica, A. anguilla)

•    Oxudercine mudskippers (Pseudapocryptes elongatus)

•    Grenadier anchovy (Coilia nasus)

•    Demersal fishes in bays

Techniques

•    Otolith microchemistry  (LA-ICPMS, WDS, SEM)

•    Back-calculation (Otolith annual increment widths)

•    Aging of fish  (Burn&Crack, Grind&Polish)

•    Tracking movements of fishes  (Mark-recapture, etc)

•    Statistical modeling  (GLMMs, etc)