K
Katsumi Tsukamoto
Researcher at University of Tokyo
Publications - 418
Citations - 15348
Katsumi Tsukamoto is an academic researcher from University of Tokyo. The author has contributed to research in topics: Japanese eel & Anguillidae. The author has an hindex of 63, co-authored 415 publications receiving 14099 citations. Previous affiliations of Katsumi Tsukamoto include Nihon University & Indonesian Institute of Sciences.
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Discovery of the spawning area for Japanese eel
TL;DR: The spawning location of the Japanese eel A. japonicain in the Pacific Ocean has eluded researchers for over 60 years as mentioned in this paper, and the discovery of their spawning location was made by measuring oceanographic conditions and collecting the transparent leaf-like eel larvae, termed leptocephali.
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Do all freshwater eels migrate
TL;DR: It is shown that Atlantic and Pacific eels collected in the ocean have spent their entire lifetime there and have never migrated into fresh water, indicating that freshwater eels need not be catadromous, and that populations from the sea contribute primarily to future recruitment.
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Facultative catadromy of the eel, Anguilla japonica, between freshwater and seawater habitats
Katsumi Tsukamoto,Takaomi Arai +1 more
TL;DR: In this article, X-ray electron microprobe analysis of the otoliths of 69 yellow and silver eels, collected from 10 localities in seawater and freshwater habitats around Japan, and classified their migratory histories.
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Oceanic spawning ecology of freshwater eels in the western North Pacific
Katsumi Tsukamoto,Seinen Chow,Tsuguo Otake,Hiroaki Kurogi,Noritaka Mochioka,Michael J. Miller,Jun Aoyama,Shingo Kimura,Shun Watanabe,Tatsuki Yoshinaga,Akira Shinoda,Akira Shinoda,Mari Kuroki,Machiko Oya,Tomowo Watanabe,Kazuhiro Hata,Shigeho Ijiri,Yukinori Kazeto,Kazuharu Nomura,Hideki Tanaka +19 more
TL;DR: The first collection of Japanese eel eggs near the West Mariana Ridge where adults and newly hatched larvae were also caught shows that spawning occurs during new moon periods throughout the spawning season, suggesting that this type of spawning may reduce predation and facilitate reproductive success.
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Basal actinopterygian relationships: a mitogenomic perspective on the phylogeny of the "ancient fish".
TL;DR: Mitogenomic data strongly supported not only the monophyly of the teleosts (osteoglossomorphs and above), but also a sister-group relationship between theteleosts and a clade comprising the acipenseriforms, lepisosteids, and Amia, with the polypteriforms occupying the most basal position in the actinopterygian phylogeny.