幼稚魚が流れ藻に伴う機構についての実験的研究-I : 人工流れ藻による実験

概要

論文の詳細を見る
The significance of drifting seaweeds for juvenile fishes was studied through experiments with artificial drifting seaweeds. Aggregations of juvenile fishes were formed under artificial drifting seaweeds in the course of a few hours, both during day time and at night. The juvenile fishes are probably not attracted towards drifting seaweeds by food nor by odor of seaweeds. Fishes once gathered under a mass of drifting seaweeds do not invariably stay there, but the transfer of fishes from one to another mass of seaweeds must take place time and again. Factors other than the reduction of light intensities may also cause the gathering of young fishes under drifting seaweeds.