Diorama Behavior Team (A01-1)

This team leaders are Dr. Shikata, who is investigating the diurnal vertical migration of harmful red tide algae in Diorama and Panoramic environments, and Dr. Shiba, who is studying the flagellar motion of sperm as they change direction toward the egg. They are responsible for supplying experimental data to other groups, as needed.

Research Subject

Algorithm for the accumulation of harmful red tide algae in Diorama and Panoramic environments

Red tides are formed by the growth and accumulation of microalgae in the ocean and have significant negative impacts on fishery industry. In this study, we will approach and elucidate the accumulation process of red-tide algae, which is currently a black box, from both biological and physical points of view to develop a precise prediction for the mitigation of damage caused by red tides. We will construct a diurnal vertical migration algorithm that consists of kinetic parameters (e.g., migration speed) and physiological parameters (e.g., photosynthetic activity) through indoor experiments with red-tide-algae cultures. We will also develop a dynamic model of red tides that incorporates the diurnal vertical migration algorithm into a physical ocean model. In addition, we validate the dynamic model of red tides using a large amount of accumulated and newly acquired environmental data.

Diorama Behavior Team (A01-1)Diorama Behavior Team (A01-1)

A red-tide dinoflagellate Karnia mikimotoi displays the systematic vertical migration
to accumulate in the depth of layers where light intensity is optimum for photosynthesis.

Diorama Behavior Team (A01-1)Diorama Behavior Team (A01-1)

A red-tide raphidophyte Chattonella antiqua escapes from blue light. However, this behavior disappears
when green or orange light is mixed with blue light. Ecological significance of these behaviors is unsolved.

movie

Diorama Behavior Team (A01-1)
member

Tomoyuki Shikata

Senior Scientist, Fisheries Technology Institute, Japan Fisheries Research and Education Agency
Tomoyuki Shikata

Completed Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University in 2009 (Ph.D. in Agriculture).
D. in Agriculture from Kyushu University in 2009. Worked as a research assistant at the laboratory of the Prefectural University of Kumamoto, a research fellow (PD) at the Japan Society for the Promotion of Science, a fixed-term researcher at the Japan Fisheries Research and Education Agency, and a researcher at the present position.
Specialized in physiological ecology of marine microalgae.

Lab. HP

Yoshitaka Nishiyama

Saitama University Graduate School
Science and Engineering
ProfessorYoshitaka Nishiyama

Lab. HP

Tsuyoshi Onizuka

Research Institute of Fisheries Science, Fisheries Research and Education Organization
Group ManagerTsuyoshi Onizuka

Lab. HP

Kazuhiro Aoki

Research Institute of Fisheries Science, Fisheries Research and Education Organization
Director ResearcherKazuhiro Aoki

researchmap

Hiroshi Yoshikawa

Kyoto University Graduate School
Science
ProfessorHiroshi Yoshikawa

Lab. HP

Saho Kitatsuji

Research Institute of Fisheries Science, Fisheries Research and Education Organization
Director ResearcherSaho Kitatsuji

Lab. HP

Mitsutaka Yuasa

Research Institute of Fisheries Science, Fisheries Research and Education Organization
Tenured ResearcherMitsutaka Yuasa

researchmap

Kouichi Sugimatsu

Research Institute of Fisheries Science, Fisheries Research and Education Organization
Director Researcher
Kouichi Sugimatsu

Lab. HP

Ikuo Uchiyama

National Institute for Basic Biology
Associate Professor
Ikuo Uchiyama

Lab. HP

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