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학술저널

서해산 복족류에 기생하는 흡충류에 관한 연구

A Study on Trematodes Parasitized in the Gastropods of the Yellow Sea

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The main purpose of the present study is to understand distribution area, morphological features and classification of various kinds of cercaria. Six kinds of cercaria were detected through the examination of about ten species of Gastropods in the vicinity :sea of Sol-ri, the estuary of the Keun river of the Yellow Sea from September, 1996 to August, 1997. The mean seawater temperatures of the study area ranged from 7℃ in January and 32℃ in August. Cercaria isoninae was found in Neverita didyma, with the maximum infection rate of 14.2% and the anual average rate of 4.9%. Cercaria yamaguti was found in Cerithidea rizophorarum and Niotha livescens and their average anual infection rates were 13.0% and 4.6%, respectively. The maximum infection rate of Cerithidea rizophorarum was 31% in August and in Niotha livescens was 10% in April, respectively. Cercaria tympanotoni was detected in the gonad of Mitrella bicincta, with the anual average rate of 0.5%. Cercaria opthalmoechinata was in Monodonta labeo and the anual infection rate was 16.8%. these parasites reached the maximum rate of 48% in April and the minium of 3.0% in January. Cercaria of Acanthoparyphium sp. was found in Batiliaria multifomis, and the mean anual infection rate was 6.48%. Cercaria pseudogronifera was found in Rapana thomasiana, and the infection rate was 2.1%. The trematodes found from Gastropods in the present research were classified as follows:

Abstract

I. 서론

II. 재료 및 방법

III. 결과 및 고찰

IV. 요약

V. 참고문헌

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