对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。

Digenetic trematodes infection on fish was analyzed in the Bohai Sea from 1983 to 1986.

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对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。

Digenetic trematodes infection on fish was analyzed in the Bohai Sea from 1983 to 1986.

youdao