感染仔虫の寄生するカタクチイワシの分布について (養殖ハマチに寄生する嚢虫に関する研究-6,7-)

概要

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In order to know the distribution of the anchovy worm, 79 samples (17, 235 fishes in total) of Engraulis japonica (HOUTTUYN) were collected from 65 localities along the coast of Japan, except the Bungo Channel, the Hyuga Sea and the Hokkaido Sea Region. Of the 79 samples, only 27 which were collected from the western half of Japan, viz., the Seto Inland Sea, the west coast of Kyushu and the north coast of Chugoku were found to carry the worm (incidence: 0.5-19.1%). When results of the earlier work (VI) were also considered, the incidence was highest in the Bungo Cchannel and the western part of the Seto Inland Sea. These facts seem to show the existence of a distributional center of the worm in these areas. On the basis of these findings discussion was made on the possibility that the worm may be used as an indicator of the local populations of the anchovy.
日本水産學會の論文