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Okinawa Churashima RESEARCH CENTER

Research on marine organisms

Research staff profile

Masanori Nonaka, Ph.D.

Masanori Nonaka, Ph.D.

(Vice Director)

Area of expertise Biology and Taxonomy of Octocorals
Research content Systematic studies of Japanese Precious Corals. Reproductive biology of Precious Corals in Ryukyu archipelago
Keiichi Ueda

Keiichi Ueda, Ph.D.

(Laboratory Manager& Senior researcher, Zoological Laboratory)

Area of expertise Clinical veterinary of the small cetaceans
Research content Research on surgical procedure of aquatic animals
Research on fungal infections concerning the small cetaceans
Shinichiro Oka, Ph.D.

Shin-ichiro Oka, Ph.D.

(Chief researcher, Zoological Laboratory)

Area of expertise Life history of fishes
Research content Fish ecology and morphology of early life stages
Life history of fishes and crustaceans
Hiromi Yamamoto

Hiromi Yamamoto

Area of expertise Cora Reef Ecology
Research content The Dynamics of the Reef-building Coral Community and its Recovery from Disturbance
The Plasticity of the Skeletal Morphology and Reproduction Cycle of Acropora Coral Under long captivity
Kei Miyamoto

Kei Miyamoto

Area of expertise Ichthyology
Research content Management of zoological collection
Taxonomy of fishes
Ryo Nozu

Ryo Nozu, Ph.D.

Area of expertise Reproductive physiology on fishes
Research content Reproductive physiology on chondrichthian fishes (sharks and rays)
Sexual plasticity and sex change in fishes
Haruna Okabe

Haruna Okabe

Area of expertise Cetacean Ecology
Research content Sighting survey of cetaceans & study on stranded cetaceans
Management of zoological collection

Nozomi Kobayashi, Ph.D.

Area of expertise Cetacean ecology, Cetacean acoustics
Research content Life history and behavioral acoustics of cetacean
Kei Miyamoto, Ph.D.

Taketeru Tomita, Ph.D.

Area of expertise Biology of chondrichthyan fishes (sharks, batoids and chimaeras)
Research content Functional morphology and evolutionary biology of chondrichthyan fishes

Zoological Laboratory & Okinawa Churaumi Aquarium

Keiichi Sato

Keiichi Sato, Ph.D.

Area of expertise Chondrichthyan fish biology
Research content Ecology, physiology and reproductive biology of chondrichthyan fishes (sharks and rays)
Systematics of chondrichthyan fishes based on comparative anatomy.
Isao Kawazu

Isao Kawazu, Ph.D.

Area of expertise Reproductive biology and ecology of sea turtles
Research content Reproductive biology and research on artificial insemination of sea turtles
Reproductive ecology of sea turtles
Makio Yanagisawa

Makio Yanagisawa

Area of expertise The anesthesia od the aquatic animal, Clinical veterinary Medicine of the small cetaceans
Research content The anesthesia of the small cetacean, The pharmacokinetics of the aquatic animal, The nutrition of the aquatic animal
Rui Matsumoto

Rui Matsumoto

Area of expertise Biology of chondrichthyan fishes (sharks and rays)
Research content Growth and reproduction of chondrichthyan fishes Whale shark migration
Systematis of chondrichthyan fishes (sharks and rays) based on comparative anatomy


Masaru Nakamura

Masaru Nakamura, Ph.D.

Area of expertise Reproductive physiology of fishes
Research content Research on sex differentiation and determination mechanism of cartilaginous fish (sharks and rays)
Research on mechanisms of the sex change in fish, Research on the sexual maturation of coral, Research on the sterilization of fish