Movement patterns of adult Sakhalin taimen, Parahucho perryi, between stream habitats of the Bekanbeushi River system, eastern Hokkaido, Japan

Honda, Kentaro; Kagiwada, Haruka; Takahashi, Nobuyuki; Miyashita, Kazushi

doi:10.1007/s10228-013-0387-2

Cited by 7 publications

(5 citation statements)

References 38 publications

(50 reference statements)

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“…Sakhalin taimen is known as a long-living freshwater fish, and river connectivity between upstream and estuarine habitats is essential for them to complete their life history (for spawning, growing foraging and wintering. (Fukushima, 1994;Edo et al, 2000;Esteve et al, 2009;Honda et al, 2012Honda et al, , 2014Honda et al, , 2017. According to Fukushima et al (2011), Sakhalin taimen are more likely to persist in rivers with low and flat areas like wetlands or lagoons, and average air temperature combined with agricultural development were cited as seriously contributing to their risk of extinction.…”

Section: Discussionmentioning

confidence: 99%

An Environmental DNA Survey on Distribution of an Endangered Salmonid Species, Parahucho perryi, in Hokkaido, Japan

Mizumoto

Mitsuzuka²,

Araki

2020

Front. Ecol. Evol.

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For protecting endangered species, precise understanding of their distribution is crucial. However, it is often very difficult to estimate at a large scale with conventional methods (e.g., casting nets or electrofishing for aquatic species) because of their low densities in the wild. Sakhalin taimen (Parahucho perryi) is one of the largest and most critically endangered freshwater salmonid fishes in the world. In this study, we applied an environmental DNA (eDNA) detection system for this species to 120 rivers in Hokkaido, the second largest main island of Japan. We successfully detected eDNA from Sakhalin taimen in seven rivers (5.8%). Although these rivers were widely distributed across the island, > 95% of the total amounts of eDNA were detected from region-A and-I, indicating that local populations in the other regions of Hokkaido are very small and on the brink of extinction. In addition, principal component analyses based on the eDNAbased estimation of Sakhalin taimen distribution and GIS revealed their distribution determinants including limited topographic relief of watershed as well as presence of wetlands and lagoons. Our results suggest that eDNA-based detection systems are an efficient means of monitoring the population status of endangered freshwater species at large scales.

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Section: Discussionmentioning

confidence: 99%

An Environmental DNA Survey on Distribution of an Endangered Salmonid Species, Parahucho perryi, in Hokkaido, Japan

Mizumoto

Mitsuzuka²,

Araki

2020

Front. Ecol. Evol.

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“…Passive acoustic telemetry was chosen for the study as it had been previously used successfully to collect in situ fish movement data remotely and under extreme environmental conditions (Bass, Hauhen, & Vøllestad, 2014;Gilroy et al, 2010;Honda, Kagiwada, Takahashi, & Miyashita, 2014;Kaus et al, 2016;Mathes et al, 2010). However, as is the case with most telemetry studies, the detected movements of B. lenok represent a lower-bound estimate of the true extent of individual movements over the study period (Gilroy et al, 2010;Gowan, Young, Fausch, & Riley, 1994).…”

Section: Discussionmentioning

confidence: 99%

Migration and movement profiles of a potadromous fish (Brachymystax lenok Pallas 1773) in a highly connected river system (Mongolia)

Kaus

Büttner

Karthe

et al. 2017

Ecology of Freshwater Fish

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Understanding a species' spatial and temporal movements along with the way these shift under extreme environmental conditions is vital for developing scientifically sound conservation and management strategies. The aim of this research was to describe and quantify the seasonal migration patterns and fine-scale movement profiles of Brachymystax lenok, a threatened, potadromous salmonid that inhabits the highly connected, boreal river basins of Siberia and northern Asia. During this study 21 mature individuals were monitored over a 15 month period in the upper Eroo River basin, Mongolia, using passive acoustic telemetry. Mean (±SD) B. lenok home ranges were 19.1 ± 15.1 km (median = 11.5 km), with maximum longitudinal movements detected > 45.3 km. Two periods of increased movements were identified; the first in late summer/early autumn when 10 B. lenok moved into deeper, overwintering pools, with the second period occurring in late spring and early summer when nine B. lenok were detected entering the surrounding tributaries. Diel activity and depth typically increased during daylight hours followed by decreased activity or resting periods in shallower river sections at night. These results highlight the need to maintain a high level of river connectivity and adequate fishing season closures by implementing and enforcing an expansive spatiotemporal management plan that can better protect and recover the Mongolian B. lenok populations. Such measures should be transferable to other threatened, potadromous fish species residing throughout the world's boreal river basins. K E Y W O R D S acoustic telemetry, Brachymystax lenok, Mongolian fish fauna, potadromous fish, seasonal movements, spatial ecology

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“…For direct approaches, we followed Bowler and Benton's () definition of dispersal as any movement of an individual between habitat patches, irrespective of the distance between them or their underlying causes (e.g., feeding, escape, exploration, reproduction). Although we decided to exclude studies that explicitly focused on migration, we included several studies that reported seasonal variation in movement patterns (e.g., Honda, Kagiwada, Takahashi, & Miyashita, ; Trested, Chan, Bridges, & Isely, ; Walker, Adams, & Adams, ), although the specific reasons were often unclear. We first characterized direct dispersal estimates using the values most commonly reported in the articles, that is, mean dispersal distance between consecutive relocations of all relocalized individuals and maximum dispersal distance of one individual between two consecutive relocations.…”

Section: Methodsmentioning

confidence: 99%

Fish dispersal in flowing waters: A synthesis of movement‐ and genetic‐based studies

Comte

Olden

2018

Fish and Fisheries

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Enhancing our understanding of fish dispersal is central to the success of modern‐day conservation efforts in freshwater ecosystems. However, methods seeking to estimate dispersal are diverse; ranging from direct estimation of individual movements, computation of dispersal kernels, to indirect assessment using measures of gene flow across riverscapes. An important question is whether results from these different approaches provide a consistent picture of the spatial scales of dispersal. Here, we performed a review and meta‐analysis of the literature reporting both individual movements and genetic data to characterize patterns of dispersal for riverine fishes globally. Across all the studies considered (Ndirect = 206; Nindirect = 205), our results suggest restricted magnitudes of dispersal for riverine fishes, but highlight a large heterogeneity among species, taxonomic orders and geographies. For instance, we found that the maximum parent–offspring dispersal distances varied from 69 m to 1,086 km (median = 12 km; Nspecies = 107), whereas the dispersal spread derived from isolation‐by‐distance slopes (σIBD) from genetic data ranged from 19 m to 250 km (median = 1 km; Nspecies = 56). Comparisons of species‐specific values also revealed significant and positive relationships between direct and indirect estimates of dispersal distances, indicating that organismal movement ability often translates into effective transmission of genes. Finally, this global overview pointed to important geographic and taxonomic disparities in the study of dispersal for riverine fishes. We thus encourage researchers to broaden the taxonomic and geographical scope of future investigations and identify emerging research frontiers where new scientific efforts are needed.

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Movement patterns of adult Sakhalin taimen, Parahucho perryi, between stream habitats of the Bekanbeushi River system, eastern Hokkaido, Japan

Cited by 7 publications

References 38 publications

An Environmental DNA Survey on Distribution of an Endangered Salmonid Species, Parahucho perryi, in Hokkaido, Japan

An Environmental DNA Survey on Distribution of an Endangered Salmonid Species, Parahucho perryi, in Hokkaido, Japan

Migration and movement profiles of a potadromous fish (Brachymystax lenok Pallas 1773) in a highly connected river system (Mongolia)

Fish dispersal in flowing waters: A synthesis of movement‐ and genetic‐based studies

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