Tetsuya Umino

Redescription and molecular characterization of Mothocya parvostis Bruce, 1986 (Crustacea: Isopoda: Cymothoidae) parasitic on Japanese halfbeak, Hyporhamphus sajori (Temminck & Schlegel, 1846) (Hemiramphidae) with Mothocya sajori Bruce, 1986 placed into synonymy

Hiroki Fujita, Panakkool Thamban Aneesh, Kentaro Kawai, Shin-Ichi Kitamura et autres

This dataset contains the digitized treatments in Plazi based on the original journal article Fujita, Hiroki, Aneesh, Panakkool Thamban, Kawai, Kentaro, Kitamura, Shin-Ichi, Shimomura, Michitaka, Umino, Tetsuya, Ohtsuka, Susumu (2023): Redescription and molecular characterization of Mothocya parvostis Bruce, 1986 (Crustacea: Isopoda: Cymothoidae) …

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Hidden Diversity in a Species Complex of Rockfishes from Japan

Diego Deville, Kentaro Kawai, Tetsuya Umino, Minoru Ikeda

The genus Sebastes comprises around 110 species of marine fish. In Japan, the Sebastes inermis complex includes three sympatric species (S. cheni, S. inermis, and S. ventricosus), and morphotypes that cannot be assigned to any of these three species. We focused on …

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Patrolling males and waiting females: sex-specific reproductive movement patterns of black sea bream in oyster farming areas

Kentaro Kawai, Yosei Nakagoshi, Tatsuki Saika, 伊東 祥太 et autres

Abstract The costs and benefits associated with reproduction differ between males and females, potentially leading to sex-specific movement patterns during spawning. In Hiroshima Bay, black sea bream Acanthopagrus schlegelii predominantly spawns in oyster farming areas (OFAs), where feeding and spawning sites spatially …

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Comments on Seki et al. (2026) “Host preference of an obligate fish parasitic isopod, Mothocya parvostis”

Hiroki Fujita, Kentaro Kawai, Michitaka Shimomura, Tetsuya Umino

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Redescription and molecular characterization of Mothocya parvostis Bruce, 1986 (Crustacea: Isopoda: Cymothoidae) parasitic on Japanese halfbeak, Hyporhamphus sajori (Temminck & Schlegel, 1846) (Hemiramphidae) with Mothocya sajori Bruce, 1986 placed into synonymy

Hiroki Fujita, Panakkool Thamban Aneesh, Kentaro Kawai, Shinichi Kitamura et autres

jp (code pays fourni par la source)

Redescription and molecular characterization of Mothocya parvostis Bruce, 1986 (Crustacea: Isopoda: Cymothoidae) parasitic on Japanese halfbeak, Hyporhamphus sajori (Temminck & Schlegel, 1846) (Hemiramphidae) with Mothocya sajori Bruce, 1986 placed into synonymy

Hiroki Fujita, Panakkool Thamban Aneesh, Kentaro Kawai, Shinichi Kitamura et autres

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Multiple male contributions to sperm storage via spermatangia in the oval squid Sepioteuthis lessoniana (Loliginidae)

Ai Hasegawa, Diego Deville, Yukio Ueta, Tetsuya Umino

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“Lure fishing” strategies by Mothocya parvostis (Isopoda: Cymothoidae): Feeding behavior-mediated infestation on juveniles of black sea bream, Acanthopagrus schlegelii

Hiroki Fujita, Kentaro Kawai, Michitaka Shimomura, Tetsuya Umino

Cymothoidae Leach, 1818 (Isopoda) are parasitic crustaceans that infest fish inhabiting marine, brackish, and freshwater environments. Few studies have examined the strategies Cymothoidae use to parasitize their hosts. In this study, we tested the hypothesis that Mothocya parvostis Bruce, 1986 (Isopoda: Cymothoidae) …

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Contribution to the catch and reproduction of hatchery-reared ayu Plecoglossus altivelis altivelis in the upper reaches of Kagami Dam Lake in the Kagami River, Kochi Prefecture

Atsushi Urabe, Riou Nagaiwa, KAZU SUMIKAWA, Atsushi Tsuyuki et autres

高知県鏡川における鏡ダム湖上流域で陸封したダム湖アユと放流した海産系統の人工アユを側線上方横列鱗数と耳石Sr:Ca比で判別し，人工アユの釣獲と繁殖の貢献を調査した。その結果，2017年5–9月に採集されたアユは8–83％が人工アユであった。次に，ダム湖アユの起源をMS-DNA多型解析で推定したところ，ダム湖アユは琵琶湖産系統と海産系統の交雑集団であった。ダム湖アユのうち，11–12月の産卵に由来する遡上群は23–27％が海産系統に帰属し，人工アユが再生産に少なからず寄与していると考えられた。

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Cultivation of Aurantiochytrium sp. Using Pickle Seasoning Liquid Waste and Application of the Raw Biomass for Fish Aquaculture

Anh Thi Nhat Tran, Qi Deng Sun, S. Nakai, Toshikazu Suenaga et autres

Abstract Aurantiochytrium sp. strain L3W is a heterotrophic microorganism that produces docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), which are essential for the growth of marine fish. In this study, pickle seasoning liquid waste was used for culturing strain L3W and the …

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Quantitative analysis of body colouration in Sebastes rockfishes

Diego Deville, Kentaro Kawai, Tetsuya Umino

Abstract Body colouration, a trait under strong selection, is influenced by the visual background of the environment. The stable influence of depth on visual background dynamics is due to light attenuation along the water column. Depth is also a key factor driving …

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Horizontal movements and home range of black sea bream Acanthopagrus schlegelii in the natural coast of Hiroshima Bay, Japan

Atsushi Tsuyuki, Tetsuya Umino

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