Yuki Kondo, Kotori Okamoto, Yuto Kitamukai, Yasunori Koya, Satoshi Awata. Medaka (Oryzias latipes) initiate courtship and spawning late at night: Insights from field observations. PLOS ONE. 2025. 20. 2. e0318358-e0318358
Gen Ito, Naoto Koyama, Ryota Noguchi, Ryoichi Tabata, Seigo Kawase, Jyun-ichi Kitamura, Yasunori Koya. Phylogeography and genetic population structure of the endangered bitterling Acheilognathus tabira tabira Jordan & Thompson, 1914 (Cyprinidae) in western Honshu, Japan, inferred from mitochondrial DNA sequences. Nature Conservation. 2024. 56. 19-36
Yasunori Koya, Ryotaro Morishita, Gen Ito. Process of gametogenesis in golden venus chub, Hemigrammocypris neglecta (Cyprinidae), with special regard to the comparison in initiation pattern of gametogenesis with other cyprinids. Ichthyological Research. 2024. 71. 3. 410-421
Yuki Kondo, Masanori Kohda, Yasunori Koya, Satoshi Awata. Sperm allocation in relation to male-male aggression and courtship in an externally fertilizing fish, the medaka. ANIMAL BEHAVIOUR. 2023. 202. 9-19
Takeshi Ito, Masaya Morita, Seiya Okuno, Kazuo Inaba, Kogiku Shiba, Hiroyuki Munehara, Yasunori Koya, Mitsuo Homma, Satoshi Awata. Fertilization modes and the evolution of sperm characteristics in marine fishes: Paired comparisons of externally and internally fertilizing species. Ecology and Evolution. 2022. 12. 12
2013/10 - 日本魚類学会 論文賞 Comparative studies of testicular structure and sperm morphology among copulatory and non-copulatory sculpins (Cottidae: Scorpaeniformes: Teleostei)