Seasonal dynamics of Dactylogyrus species (Monogenea: Dactylogyridae) on wild and farmed goldfish (Carassius auratus): Implication for prevention of dactylogyriasis
文献类型： 外文期刊
作者： Li, Wenxiang 1 ; Yang, Baojuan 2 ; Cheng, Jiangwen 1 ; Zou, Hong 1 ; Li, Ming 1 ; Wang, Guitang 1 ;
作者机构： 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Wuxi 214081, Peoples R China
关键词： Carassius auratus; Seasonal occurrence; Population dynamic; Dactylogyrus species
期刊名称：AQUACULTURE REPORTS （ 影响因子：3.385； 五年影响因子：3.645 ）
ISSN： 2352-5134
年卷期： 2022 年 26 卷
页码：
收录情况： SCI
摘要： Dactylogyrid is the common parasite on the gills of goldfish (Carassius auratus). Seasonal dynamics of the dac-tylogyrids on goldfish were investigated from March 2011 to February 2012 in the Liangzi Lake and a fish pond in Shishou, China. Six Dactylogyrus species were found, i.e. D. vastator, D. intermedius, D. arcuatus, D. baueri, D. formosus and D. inexpectatus. The highest mean abundance was recorded for D. arcuatus (4.39) on the wild goldfish, while the highest for D. vastator (0.27) on the farmed goldfish. In Liangzi Lake, except for D. inexpectatus with low infection, prevalence and mean abundance of the other five species of Dactylogyrus exhibited significant seasonal changes (P < 0.05). Three seasonal patters were observed, three peaks in spring, summer and autumn, such as D. vastator; two peaks in winter and summer, such as D. formosus; one peak in spring, such as D. intermedius, D. arcuatus and D. baueri. Despite of the different seasonal patters, high prevalence and mean abundance were observed for D. vastator, D. intermedius, D. arcuatus and D. formosus in February or March with low water temperature. In the pond, only the D. vastator exhibited high prevalence and mean abundance, and similar seasonal dynamic as that in the lake, which suggested that it was appropriate to prevent and control disease caused by D. vastator in February in goldfish farming.
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