Marine algal flora off the coast of Jusan-Hama at Kitakami in Miyagi Prefecture, Japan

Abstract

Marine algal flora off the coast of Jusan-Hama in Kitakami, Miyagi Prefecture was studied from April 1998 to February 1999. 102 species of marine algae were listed, 13 of which belong to Chlorophyta, 28 to Phaeophyta, 61 to Rhodophyta, and one species of sea grass. Over ten species of the small annual algae matured throughout the year. The small perennial algae mainly matured from autumn to winter. Among the large perennial brown algae, those are Hizikia fusiformis, Sargassum micracanthum, S. siliquastrum, S. thunbergii, and S. yezoense of Fucales, and Arame kelp (Eisenia bicyclis) of Laminariales, matured in summer and autumn-winter, respectively.