气候变化领域集成服务门户(CCPortal): Consistent Negative Correlations Between Parasite Infection and Host Body Condition Across Seasons Suggest Potential Harmful Impacts of Salmincola markewitschi on Wild White-spotted Charr, Salvelinus leucomaenis

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DOI	10.2108/zs230028
	Consistent Negative Correlations Between Parasite Infection and Host Body Condition Across Seasons Suggest Potential Harmful Impacts of Salmincola markewitschi on Wild White-spotted Charr, Salvelinus leucomaenis
	Hasegawa, Ryota; Koizumi, Itsuro
发表日期	2024
ISSN	0289-0003
起始页码	41
结束页码	2
卷号	41 期号:2
英文摘要	Assessing the impacts of parasites on wild fish populations is a fundamental and challenging aspect of the study of host-parasite relationships. Salmincola, a genus of ectoparasitic copepods, mainly infects salmonid species. This genus, which is notorious in aquaculture, damages host fishes, but its impacts under natural conditions remain largely unknown or are often considered negligible. In this study, we investigated the potential impacts of mouth-attaching Salmincola markewitschi on white-spotted charr (Salvelinus leucomaenis) through intensive field surveys across four seasons using host body condition as an indicator of harmful effects. The prevalence and parasite abundance were highest in winter and gradually decreased in summer and autumn, which might be due to host breeding and/or wintering aggregations that help parasite transmissions. Despite seasonal differences in prevalence and parasite abundance, consistent negative correlations between parasite abundance and host body condition were observed across all seasons, indicating that the mouth- attaching copepods could reduce the body condition of the host fish. This provides field evidence suggesting that S. markewitschi has a potential negative impact on wild white- spotted charr.
英文关键词	body condition; host-parasite relationship; parasitic copepod; Salmincola carpionis; Salmincola markewitschi; salmonid
语种	英语
WOS研究方向	Zoology
WOS类目	Zoology
WOS记录号	WOS:001208700600006
来源期刊	ZOOLOGICAL SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/295483
作者单位	Hokkaido University; Hokkaido University
推荐引用方式 GB/T 7714	Hasegawa, Ryota,Koizumi, Itsuro. Consistent Negative Correlations Between Parasite Infection and Host Body Condition Across Seasons Suggest Potential Harmful Impacts of Salmincola markewitschi on Wild White-spotted Charr, Salvelinus leucomaenis[J],2024,41(2).
APA	Hasegawa, Ryota,&Koizumi, Itsuro.(2024).Consistent Negative Correlations Between Parasite Infection and Host Body Condition Across Seasons Suggest Potential Harmful Impacts of Salmincola markewitschi on Wild White-spotted Charr, Salvelinus leucomaenis.ZOOLOGICAL SCIENCE,41(2).
MLA	Hasegawa, Ryota,et al."Consistent Negative Correlations Between Parasite Infection and Host Body Condition Across Seasons Suggest Potential Harmful Impacts of Salmincola markewitschi on Wild White-spotted Charr, Salvelinus leucomaenis".ZOOLOGICAL SCIENCE 41.2(2024).