Ichthyology and Collection Building in Japan

Nakae, Masanori; Matsuura, Keiichi

doi:10.1007/978-981-16-7427-3_4

Cited by 2 publications

(1 citation statement)

References 91 publications

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“…In the far north, the relatively cold marine waters around Hokkaido (Sea of Japan, Sea of Okhotsk, Pacific coast) are inhabited by 771 species of 51 orders, as listed by Kai [13]. The freshwater fish fauna in Hokkaido has far fewer species, but includes a diverse fauna of diadromous fishes, as well as some resident species (Figure 2; [14,15]); but the number of freshwater species is much lower than in Southern Japan [16]. Hokkaido includes numerous mountain areas and two large flat plain areas with single large drainage systems on the Sea of Japan (Ishikari River) and Pacific (Tokachi River) sides of the island (Figure 1b).…”

Section: Introductionmentioning

confidence: 99%

Environmental DNA Characterization of the Fish Species Composition in the Mukawa River and Adjacent Habitats

Ahn,

Miller

2024

Fishes

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The diverse freshwater fish fauna of the Japanese archipelago is distributed among four main island landmasses, which include Hokkaido in the north, with many diadromous species. One relatively well-preserved river drainage along the southern coast of Central Hokkaido is the Mukawa River. Fish fauna surveys in the Mukawa River were mostly in downstream areas and the fish diversity is not well-documented among the upper, lower river, and coastal environments. Fish communities in the river, estuary, and sea were sampled using eDNA analysis to evaluate upstream and downstream species detections, and tidal and spatial detection variation near the river mouth. The number of species was higher at the river mouth and nearshore sites compared to the river and offshore. Fish detections reflected life history categories (freshwater resident, diadromous, brackish, or marine) and the environments. Similarity analysis showed that fish species compositions were divided into (1) upstream and midstream, (2) downstream and river mouth, (3) adjacent shore, and (4) offshore. Salmonid, cyprinid, loach, and sculpin species were detected in the river, compared to a mixture of species downstream and along the coast. This rapid assessment type study demonstrated that eDNA survey methodology would be effective for multiple river comparative surveys, seasonality studies, or evaluating possible effects of cross-river weirs or dams.

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Section: Introductionmentioning

confidence: 99%

Environmental DNA Characterization of the Fish Species Composition in the Mukawa River and Adjacent Habitats

Ahn,

Miller

2024

Fishes

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Notes on type specimens of Rhinogobius flumineus (Mizuno 1960) (Perciformes: Gobiidae) and Cobitis takatsuensis Mizuno 1970 (Cypriniformes: Cobitidae) in Tokushima Prefectural Museum, Tokushima, Japan

ITO,

SUZAWA,

SATO

2024

Zootaxa

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Rhinogobius flumineus and Cobitis takatsuensis were described as new species by Prof. Nobuhiko Mizuno in 1960 and 1970, respectively. Within the manuscripts, he mentioned that he had preserved the type specimens of these species in his private collection. Professor Mizuno concluded his tenure at Ehime University, Japan, in 1996, and subsequently, Tokushima Prefectural Museum (TKPM) received his collection, which included the type specimens of R. flumineus and C. takatsuensis. However, the whereabouts of his collection is not widely known. Here we provide detailed notes of the holotypes and paratypes of R. flumineus and C. takatsuensis housed in TKPM. The information presented herein will contribute to future taxonomic investigations of East Asian freshwater fishes.

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Ichthyology and Collection Building in Japan

Cited by 2 publications

References 91 publications

Environmental DNA Characterization of the Fish Species Composition in the Mukawa River and Adjacent Habitats

Environmental DNA Characterization of the Fish Species Composition in the Mukawa River and Adjacent Habitats

Notes on type specimens of Rhinogobius flumineus (Mizuno 1960) (Perciformes: Gobiidae) and Cobitis takatsuensis Mizuno 1970 (Cypriniformes: Cobitidae) in Tokushima Prefectural Museum, Tokushima, Japan

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