抄録
In the present paper, the author analysed ecologicaly the fish population taken by the stopping-net in the coastal waters of Tomioka, Amakusa Islands during the three years from 1958 to 1960.
The results obtained from this study are as follows:
1) Both the inner and outer bay serve as the nursery ground and the fish populations there consist mainly of the small-size (young) fishes (Table 1).
2) The catches per fishing and the coefficients of their variation of Mugil cephalus, Gerres oyena and Lateolabrax japonicus are about 19, 11 and 4 in kg., and 1.3, 2.0 and 1.5, respec-tively. This fact seems to demonstrate the characteristics of this net (Fig. 1 and Table 2).
3) The net is used mostly for the feeders, specially the Mugild fishes, Mugil cephalus in winter (Fig. 2).
Further, based on the information given in the previous and present papers, the stopping-net fishery was analysed from the standpoints of the amount of catch, fishery ground and fish population.
