海水中懸濁粒子の沈降・堆積がワカメ遊走子の着生とその成長に及ぼす阻害作用

概要

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Effects of suspended and accumulated kaolinite particles on the adhesion and the development of Undaria pinnatifida zoospores on the substratum were investigated under the following three types of condition; Case-1: suspended particles together with zoospores, Case-2: zoospores released after accumulation of particles on the substratum, and Case-3 : accumulated particles on zoospores adhered on the substratum.Case-2 was the most effective inhibition for the adhesion of zoospores, and 50% of effective concentration of particles (EC50) was 29 μg·cm-2. It was difficult for gametophytes to develop to sporophytes in Case-3. Furthermore, in comparing Undaria zoospores with Porphyra conchospores, the zoospores showed higher tolerance to suspended particles.
社団法人　日本水環境学会の論文
1998-10-10