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AN ECOLOGICAL STUDY ON ACANTHOCEPHALANS PARASITIC IN THE INTESTINE OF PSEUDOBAGRUS EUPOGON IN HUANG ZHOU SECTION OF THE YANGTZE RIVER
Author(s): FANG Jianping, ZHAN Huoyuan, LEI Guilan
Pages: 279-
283
Year: 2004
Issue:
3
Journal: ACTA HYDROBIOLOGICA SINICA
Keyword: 长须黄颡鱼; 长江丽棘虫; 鲇异棘虫; 种群生态;
Abstract: 解剖检查了133尾捕自长江黄州江段的长须黄颡鱼,发现寄主感染长江丽棘虫的感染率为48.9%,感染强度为5.4(虫/尾),平均密度为2.6(虫/尾),感染鲇异棘虫的感染率为21.8%,感染强度为5.5(虫/尾),平均密度为1.2(虫/尾),两种棘头虫在长须黄颡鱼种群中均为聚集分布;当两种棘头虫共同寄生在宿主肠道内时,其感染强度和单独感染时相比没有显著差异,但是,各自的生态位宽度均变小;两种棘头虫的正关联关系显著.
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