Distribution and Seasonality of Seaweeds in Sakurajima Is., Kagoshima, Japan

A total of 70 benthic marine algal taxa was identified from collections made around Sakurajima Island, Kagoshima Prefecture, Japan. Eighteen species belonging to phylum Chlorophyta, 15 species for Phaeophyta, 34 species for Rhodophyta, 1 species for Cyanophyta and 2 species for sea-grass were reported from collections of 1986. More common genera were Codium, Sargassum, Gelidium and Gracilaria. Fauchea leptophylla SEGAWA (Rhodymeniaceae, Rhodophyta) was a newly reported species from southern part of Japan. This paper dealt with the distribution, seasonal succession and reproductive period of benthic marine algae found in Sakurajima Island.1986年に鹿児島県桜島の海藻相調査を行ない,海産顕花植物2種,藍藻1種,緑藻18種,褐藻15種,紅藻34種の合計70種(sp. 2種を含む)を明らかにした。本海域での優占種は,緑藻ミル属,褐藻ホンダワラ属,紅藻マクサ属およびオゴノリ属であった。また紅藻トゲナシマダラFauchea leptophylla SEGAWA (Rhodymeniaceae)の生育が本海域で新たに確認された。さらに桜島に出現した藻類各種の成熟時期をも明らかにしたのでその結果を報告した