Abstract
In order to observe the driving and intercepting effects on Therdpon servus, Apogon notatus, Gerres erythrourus, Chromis notata and Trachurus trachurus, some laboratory experiments on the bubble-net were done with the method mentioned in the previous report. As the result of that experiment some effects of the bubble-net on these fishes were observed, furthermore it was ascertained that these effects were to be influenced by the air amount of the bubble-net and the visional response ability of the fish toward the air-amount, and as to the air-amount which is necessary to bring forth any intercepting effects, no good result was to be obtained, both when there was too much air-amount and when too little.
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