三重県早田浦の海藻植生

概要

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The algal flora and coastal environments were investigated in May at 10 stations in Haidaura, 1999. The number of species identified was 71 including 8 species of Chlorophyceae, 14 species of Phaeophyceae, 49 species of Rhodophyceae. Considering the algal flora and their distribution, Haidaura was divided into 2 areas, i.e. inner sea area and open sea area. In the inner sea area, there were a few algal species. The “isoyake” areas were found at most inner parts of the bay. The open sea area was characterized by developed Sargassum zone. S. micracanthum was the dominant species in this zone. The decline of floristic diversty in the inner sea area of Haidaura was probably related to self-pollution by fish culture.1999年5月に尾鷲市早田浦の10地点において海藻植生，海岸線の状況について調査を行った。採集された海藻は緑藻綱8種，褐藻綱14種，紅藻綱49種の計71種であった。海藻植生から考察した結果，早田浦は内海域，外海域の2つに区分された。海藻相は内海域，特に湾奥部で貧弱で磯焼けも見られた。外海域では海藻相は豊富でトゲモクが優占するガラモ場が湾口部で広がっていた。湾奥部における海藻植生衰退の原因の1つとして魚類養殖の影響が考えられた。
三重大学の論文