魚群擴散移動と漁獲変動との関係

概要

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As regards the flactuation of catches, there are few examples of the discussions about the causes of this fluctuation throngh the view of the diffusive movements of fish schools, although many examples of the discussions about the statistic dealing of the fluctuable results. The author attended to explain, this fluctuation by means of the combination of the movements and tha appearances of fish schools. In the result, it is said that soon after beginning of catch the maximum abundant one appears and then successively the gradually scarce ones continue till the last of one period of catching.
公益社団法人日本水産学会の論文