紅藻胞子の岩面附着に關する二三の實驗

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概要

• 論文の詳細を見る

• 1. The settling of spores of red algae suspending in the sea water on the substratum was investigated with the coralline spores. 2. The number of spores settled on various sorts of glass surfaces having different grades of roughness (Fig. 1) was examined stochastically by means of the Latin Square method. Number of spores was significantly greater on the surface with macroscopic roughness (unevenness of ca 500-750μ) than on the smooth and slightly rough ones (unevenness less than spore diameter) (Tab. 1,2). 3. On the undulated glass surface (Fig. 2) much more number of spores were found in the sunken areas than in the upheaved areas, the proportion being about 10 : 1 (in the tide pool) or 3 : 1 (in the bay) (Tab. 3). 4. The relation between the number of spores and the inclination of glass surfaces was surveyed, with 4 grades (steps) of angles, 0°, 30°, 60°, 90°(Fig. 3). Throughout the survey, the number of spores decreased as the inclination became steeper(Tab. 4,Fig. 4).

• 日本生態学会の論文
• 1954-03-25

著者

• 尾形 英二

  大阪市立大学理工学部

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