On the biology of Rhabdochona rotundicaudatum and R. cascadilla (Nematoda: Thelazioidea) in stream fishes from southern Ontario, Canada
On the biology of Rhabdochona rotundicaudatum and R. cascadilla (Nematoda: Thelazioidea) in stream fishes from southern Ontario, Canada
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加拿大安大略省南部溪流鱼类中圆尾棒状线虫 (Rhabdochona rotundicaudatum) 和卡斯卡迪拉 (R. cascadilla)（线虫纲：吸吮线虫总科）的生物学
DOI：
10.1139/z92-073
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
P. Byrne
中科院分区：
文献类型：
--
作者：
P. Byrne
寄生虫的季节性模式的收购，成熟，并在常见的shiners（Notropis cornutus Mitchill，1817）从埃拉莫萨河在加拿大南部安大略，1918年和Rhabdochona圆尾虫Byrne，1992年的损失，小杆线虫cascadilla Wigdor，1918年，如下。成人河cascadilla和R.晚春大量出现圆尾虫。这两个物种的女性迅速成熟，并在6月和7月含胚卵。R.卡斯卡迪亚在整个夏天逐渐减少，但从未达到零。R.在整个夏季，圆尾龙的数量迅速减少，8月1日之后只有一只成虫恢复。鱼类在春末快速获得蠕虫似乎是由中间和最终主机在空间和时间上的收敛所促进的。与普通的shiner和R.圆尾蜉蝣（Ephemera simulans步行者，1853）是蜉蝣目蜉蝣科（Ephemeroptera）的一种重要害虫，主要发生于5月下旬和5月下旬的溪流浅滩区。
The seasonal pattern of parasite acquisition, maturation, and loss of Rhabdochona cascadilla Wigdor, 1918 and Rhabdochona rotundicaudatum Byrne, 1992 collected in common shiners (Notropis cornutus Mitchill, 1817) from the Eramosa River in southern Ontario, Canada, was followed. Adult R. cascadilla and R. rotundicaudatum appeared in large numbers in late spring. Females of both species matured quickly and contained embryonated eggs in June and July. Prevalence and intensity of R. cascadilla tapered off throughout the summer but never reached zero. Prevalence and intensity of R. rotundicaudatum decreased rapidly through the summer and only one adult was recovered after August 1. Rapid acquisition of worms by fish in late spring seems to be facilitated by the convergence of the intermediate and definitive hosts in space and time. Convergence with common shiner and the intermediate host of R. rotundicaudatum, Ephemera simulans Walker, 1853 (Ephemeroptera), occurs in the stream riffle areas during late May and...