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Sayaka NAKATSUKA, Daisuke OCHI, Yukiko INOUE, Hiroshi OHIZUMI, Yasuaki NIIZUMA, Hiroshi MINAMI. The diet composition and ingested plastics of Laysan and Black-footed Albatrosses incidentally captured by the pelagic longline fishery in the Western North Pacific. Ornithological Science. 2021. 20. 2. 129-140
Yoko Mitani, Yuki F. Kita, Shigeo Saino, Motoi Yoshioka, Hiroshi Ohizumi, Fumio Nakahara. Mitochondrial DNA Haplotypes of Killer Whales around Hokkaido, Japan. Mammal Study. 2021. 46. 3. 205-211
Rikiya Takahashi, Mai Sakai, Kazunobu Kogi, Tadamichi Morisaka, Takao Segawa, Hiroshi Ohizumi. Prey Species and Foraging Behaviour of Indo-Pacific Bottlenose Dolphins (Tursiops aduncus) Around Mikura Island in Japan. Aquatic Mammals. 2020. 46. 6. 531-541