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首页> 外文期刊>Journal of Parasitology >COMMUNITY STRUCTURE AND SEASONAL DYNAMICS OF DACTYLOGYRUS SPP. (MONOGENEA) ON THE FATHEAD MINNOW (PIMEPHALES PROMELAS) FROM THE SALT VALLEY WATERSHED, LANCASTER COUNTY, NEBRASKA
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COMMUNITY STRUCTURE AND SEASONAL DYNAMICS OF DACTYLOGYRUS SPP. (MONOGENEA) ON THE FATHEAD MINNOW (PIMEPHALES PROMELAS) FROM THE SALT VALLEY WATERSHED, LANCASTER COUNTY, NEBRASKA

机译：DACDYLOGYRUS SPP的群落结构和季节动态。内布拉斯加州兰开斯特县盐谷流域的盐沼小头虱（小菜蛾）

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摘要

The gill monogene communities of Pimephales promelas (fathead minnow) in 3 distinct sites on converging streams were investigated from 2004 to 2006 in 3 different seasons. Thirty collections of A promelas were made in southeastern Nebraska along 3 converging tributaries: Elk Creek (40.88534 degrees N, 96.83366 degrees W), West Oak Creek (40.9082 degrees N, 96.81432 degrees W), and Oak Creek (40.91402 degrees N, 96.770583 degrees W), Lancaster County, Nebraska. In all, 103 P. promelas were collected from Elk Creek, 115 from West Oak Creek, and 78 from Oak Creek and examined for gill monogenes. Among the A promelas collected, 93.5% were infected with up to 3 species of Dactylogyrus, including Dactylogyrus simplex Mizelle, 1937, Dactylogyrus hychowskyi Mizelle, 1937, and Dactylogyrus pectenatus Mayes, 1977. Mean intensities at Elk Creek, West Oak Creek, and Oak Creek were 17.6, 22.8, and 25.1, and prevalences 88, 95, and 97%, respectively. At these 3 sites: (1) P. promelas does not share Dactylogyrus species with Semotilus atromaculatus (Creek chub) or Notropis stramineus (Sand shiner); (2) fish size and sex are not predictive of Dactylogyrus infection; (3) Dactylogyrus spp. vary (not always predictably) in their seasonal occurrence; (4) populations of Dactylogyrus spp. respond to environmental differences among sites; and (5) the community structure of Dactylogyrus spp. (order of abundance) is independent of environment.
机译：2004年至2006年的3个不同季节，对聚合流中3个不同位点的Pimephales promelas（f头now鱼）的mono单基因群落进行了调查。在内布拉斯加州东南部沿3个汇合支流收集了30种A牛pro子：Elk Creek（北纬40.88534度，西经96.83366度），West Oak Creek（北纬40.9082度，西经96.81432度）和Oak Creek（北纬40.91402度，96.770583度） W），内布拉斯加州兰开斯特县。总共从麋鹿溪收集了103个P. promelas，从西橡树溪收集了115个，从橡树溪收集了78个，并检查了mono单基因。在收集的A早熟种中，有93.5％的细菌被3种细菌感染，其中包括1937年的单一细菌Dactylogyrus Mizelle，1937年的细菌Dactylogyrus hychowskyi Mizelle和1977年的果蝇Dactylogyrus pectenatus Mayes。克里克分别为17.6、22.8和25.1，患病率分别为88％，95％和97％。在这3个地点：（1）淡色疟原虫不与Semotilus atromaculatus（小溪）或Notropis stramineus（沙光）共享拟杆菌属; （2）鱼的大小和性别不能预测乳杆菌感染; （3）拟杆菌属。季节性变化（并非总是可以预测）; （4）拟杆菌属的种群。应对站点之间的环境差异; （5）Dactylogyrus spp的群落结构。 （丰度顺序）与环境无关。

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