Noteworthy phenomena on the marine organisms in the Seto Inland Sea off Yamaguchi Prefecture (Preliminary Report)
2018
Kawano, M. | Baba, T. | Kunimori, T.
Noteworthy phenomena on the marine organisms in the Seto Inland Sea off Yamaguchi Prefecture during 1996-2017 are examined and listed in chronological order. A total of 110 species have been identified including an algae species, six cnidarians, four annelids, eight mollusks, 15 arthropods, an echinoderm, two tunicates, 71 fishes, two reptilians. The total number of identified species conspicuously increased after 2005, which would be caused by the increase of warm water species. These warm water species included poisonous creatures such as Arothron firmamentum, Hippoglossoides pinetorum and Hapalochiaena fasciata. It was considered that most of the warm water and newly immigrated species had immigrated through the Bungo Channel, whereas Gadus microcephalus (cold water species) had immigrated through the Kanmon Strait.
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