底棲魚類の集団解析について

抄録

The eight species of the benthic fish, consisting the important members of the trawler's catch in the northern part of the Sendai Bay, can be classified according to their feeding habits into three types, namely annelids eaters, crustaceans eaters and fish eaters. There can not be found any particular relations by weights in the numerical distributions of the fish species caught per unit haul. But when they are grouped by the feeding habits, the distributions in the abundance of different species within the same group, and also in the total weights among the different groups can precisely be represented by MOTOMURA'S formula (1932).