2017
DOI: 10.1017/pao.2017.12
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Spatial aggregation in small spring-fed tributaries leads to a potential metapopulation structure in a parasitic fish leech

Abstract: Large-bodied ectoparasites are often observed only in low numbers in the field. How such rarely found parasites persist and maintain viable populations has been an intriguing question inadequately addressed. The simplest hypothesis is the existence of distribution hot spots, and another, but not mutually exclusive, possibility is a form of metapopulation structure where local populations are effectively connected via dispersal. In this study, we conducted an intensive epidemiological survey of a piscicolid lee… Show more

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Cited by 4 publications
(3 citation statements)
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References 69 publications
(137 reference statements)
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“…), Salmonema ephemeridarum (von Linstow, 1872) (as Cystidicoloides ephemeridarum), Rhabdochona oncorhynchi (Fujita, 1921), and Rhabdochona sp. (Seki 1975;Ito et al 1987)-and a leech Taimenobdella amurensis (Epshtein, 1964) (Katahira et al 2017). Another subspecies of Dolly Varden, Miyabe charr, Salvelinus malma miyabei Oshima, 1938, also occurs on Hokkaido Island and is endemic to Lake Shikaribetsu (Maekawa 1984;Dunham et al 2008: 539).…”
Section: Discussionmentioning
confidence: 99%
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“…), Salmonema ephemeridarum (von Linstow, 1872) (as Cystidicoloides ephemeridarum), Rhabdochona oncorhynchi (Fujita, 1921), and Rhabdochona sp. (Seki 1975;Ito et al 1987)-and a leech Taimenobdella amurensis (Epshtein, 1964) (Katahira et al 2017). Another subspecies of Dolly Varden, Miyabe charr, Salvelinus malma miyabei Oshima, 1938, also occurs on Hokkaido Island and is endemic to Lake Shikaribetsu (Maekawa 1984;Dunham et al 2008: 539).…”
Section: Discussionmentioning
confidence: 99%
“…In the past parasitological papers, several scientific names were used for southern Asian Dolly Varden from Japan [Salvelinus malma (Walbaum, 1792) (Seki 1975;Ito et al 1987;Shedko and Shedko 2002); S. m. krascheninnikovi (Katahira et al 2017)] and the Russian Far East [S. malma (Shedko and Shedko 2002); S. curilus (Pallas, 1814) (Shedko et al 2005)], but S. m. krascheninnikova is herein used based on WoRMS Editorial Board (2020). Following Dunham et al (2008: 539), "southern Asian Dolly Varden" is used as the common name of S. malma krascheninnikova.…”
Section: Methodsmentioning
confidence: 99%
“…The flow rate, which is another major factor in the stream environment, is also strongly influenced by groundwater. In addition, because groundwater flow is affected by not only geological conditions but also geomorphological conditions, it is possible to separate streams with high and low groundwater discharge even in the same geological watershed (e.g., Katahira et al 2017), indicating that the elimination of correlations between distance and environment is also possible in smaller-scale studies.…”
Section: Discussionmentioning
confidence: 99%