Digenetic trematodes infection on fish was analyzed in the Bohai Sea horn 1983 to 1986.The results showed that the infection value in inner sea was higher than outer sea.
摘要1983~1986年采集于渤海的鱼类感染复殖吸虫进行分析，结果表明：从外海到内海鱼类感染强度呈现加重的趋势。
Trematode infection
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Trematoda
Trematoda is a class within the phylum Platyhelminthes. It includes two groups of parasitic flatworms, known as flukes.
They are internal parasites of molluscs and vertebrates. Most trematodes have a complex life cycle with at least two hosts. The primary host, where the flukes sexually reproduce, is a vertebrate. The intermediate host, in which asexual reproduction occurs, is usually a snail.
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