is a Japanese

ichthyologist Ichthyology is the branch of zoology devoted to the study of fish, including bony fish ( Osteichthyes), cartilaginous fish (Chondrichthyes), and jawless fish (Agnatha). According to FishBase, 33,400 species of fish had been described as of Octobe ...

specializing in

elasmobranch Elasmobranchii () is a subclass of Chondrichthyes or cartilaginous fish, including sharks (superorder Selachii), rays, skates, and sawfish (superorder Batoidea). Members of this subclass are characterised by having five to seven pairs of gil ...

s, especially

shark Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimo ...

s. He graduated from

Hokkaido University , or , is a Japanese national university in Sapporo, Hokkaido. It was the fifth Imperial University in Japan, which were established to be the nation's finest institutions of higher education or research. Hokkaido University is considered ...

's Laboratory of Marine Zoology with a PhD in Fisheries Science. He is an editor of Japan's ''

Ichthyological Research ''Ichthyological Research'' is a quarterly peer-reviewed scientific journal covering various aspects of ichthyology research. It is published by Springer Science+Business Media and was established in 1988. The editor-in-chief is Tomoyuki Kokita ...

'' journal and author of the book, ''Squalean Phylogeny''. He died at the age of 63 on September 9, 2020.

Taxon described by him

*See :Taxa named by Shigeru Shirai

References

4. 白井　滋さんを偲んで
Japanese Society for Elasmobranch Studies
Vol.53. March 2021. Japanese ichthyologists Japanese scientists Living people Year of birth missing (living people) {{japan-scientist-stub