Seto Marine Biological Laboratory mainly has been carried out taxonomy and phylogeny of marine invertebrates for a long time. Especially regarding Cnidaria, Ctenophore, Mollusca, Arthropoda, Chaetognatha and Chordata has been studied well. In addition, ecological survey such as distribution, life history, species interaction and ethology of marine plankton and benthos also has been done.

The main subjects of the current staffs of the laboratory are as follows:

  • Study of Crustaceans and Other Invertebrates (ASAKURA, Akira: Professor)
    • Behavioral ecology, population dynamics, and competition among co-occurring species of crustaceans
    • Intertidal community ecology of macro-benthic invertebrates
    • Diversity, systematics and biogeography of crustaceans and other invertebrates (Fig. 1, 2)
    • Conservation biology of marine and freshwater invertebrates

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  • [Fig. 1. Dardanus robustus Asakura, 2006, from the Ogasawara Islands (Photo by Hiroyuki Tachikawa)]

    [Fig. 2. Pseudopaguristes bollandi Asakura & McLaughlin, 2003, from Okinawa (Photo by Robert F. Bolland)]

  • Study of Crustaceans (SHIMOMURA, Michitaka: Associate professor)
    • Taxonomy, systematics and biogeography of deep-sea crustaceans (Fig. 1)
    • Taxonomy, behavior and life cycle of parasitic crustaceans (Fig. 2)
    • Biodiversity of crustaceans in cryptic environments
    • Taxonomy of shallow-water crustaceans

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  • [Fig. 1. Deep-sea isopod Bathycopea dicarina Shimomura, 2008, from 500 m deep, Tosa Bay. Body length: 4 mm]

    [Fig. 2. Scanning electron micrograph of female and male of parasitic isopod Aspidophryxus izuensis Shimomura, 2017, from 35 m deep, Izu-Oshima Island. Body length: 1.3 mm]

  • Study of Mollusca (NAKANO, Tomoyuki: Senior lecturer)
    • Molecular Phylogeny of Patellogastropoda (Fig. 1)
    • Phylogeography of limpet genus Cellana
    • Species boundaries of Patelloida saccarina
    • Fine scale endemism of Scutellastra flexuosa

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  • [Fig. 1. Dispersal process of Patellogastropoda, based on phylogenetic tree and fossil records]

  • Phylogeny, taxonomy, and symbiosis of marine invertebrates (GOTO, Ryutaro: Assistant professor)
    • Evolutionary biology, ecology, taxonomy of marine organisms
    • Evolutionary ecology of symbiotic relationships such as mutualism, commensalism, and parasitism
    • DNA-based phylogenic analysis

    »Member's introduction page

  • Natural history of marine invertebrates (YAMAMORI, Luna: Assistant professor)
    • Symbiotic biota in sea urchin pits
    • Loss of coiling in gastropods
    • Goose barnacles modifying the shell of its hosts
    • Ecology and phylogeny of case-baring polychaetes

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  • [Fig. 1. A pit bored by Echinostrephus molaris]

    [Fig. 2. Broderipia iridescens, an obligate symbiont of sea urchin pits]