2021~現在: Structure of Populations, Levels of Abundance and Status of Humpback whales version 2 (SPLASH-2) project 運営委員
論文・レポート・報告書
Higa S, Omata M, Nakamura M, Kobayashi N, Ueda K, Kawazu I. Long-term monitoring of semen quality and serum testosterone concentration in a captive male false killer whale. Mammal Study. (in press)
Cheeseman T, Barlow J, Acebes JM, Audley K, Bejder L, Birdsall C,...Kobayashi N, Lammers M, Lyman E, …Okabe H,…Clapham P. (2024). Bellwethers of change: population modelling of North Pacific humpback whales from 2002 through 2021 reveals shift from recovery to climate response. Royal Society Open Science, 11(2), 231462.
Cheeseman T, Southerland K, Acebes JM, Audley K, Barlow J, Bejder L, Birdsall C, Bradford A,…Kobayashi N, Lyman E, Malleson M,…Okabe H,…Clapham P. (2023). A collaborative and comprehensive photo-ID dataset. Scientific reports, 13(1), 10237.
Stephanie S, Kobayashi N, Okabe H, Ozawa S. Studying the behavioral impacts of commercial whale watch and swim-with-whale tours on humpback whales in Okinawa, Japan. IWC scientific committee report, SC/69A/WW/04
Higa S, Mitani Y, Ikeshima S, Kobayashi N, Ueda K, Kawazu I. 2023. Parturition and Nursing
Events in a Cephalic Birth of a False Killer Whale (Pseudorca crassidens) in Managed Care.
Aquatic Mammals. 49(3): 217-222.
Kobayashi N, Kondo S, Tsujii K, Oki K, Hida M, Okabe H, Yoshikawa T, Ogawa R, Lee C, Higashi N, Okamoto R, Ozawa S, Uchida S, Mitani Y. 2022. Interchanges and movements of humpback whales in Japanese waters: Okinawa, Ogasawara, Amami, and Hokkaido, using an automated matching system. PLoS ONE 17(11): e0277761.
Yoshikawa T, Hida M, Lee C, Okabe H, Kobayashi N, Ozawa S, Saito H, Kan M, Date S, Shimojo S. 2021. Identification of over one thousand individual wild humpback whales using fluke photos. Proceedings of the 17th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications. 4: ISBN 978-989-758-555-5, ISSN 2184-4321, 957-967.
Takahashi R, Kobayashi N, Higa S, Sakai M. The passage time of prey through the digestive tract of Indo-Pacific bottlenose dolphin (Tursiops aduncus). 2021. Japanese Journal of Zoo and Wildlife Medicine. 26(4):149-152.
Ikeshima S, Higa S, Mitani Y, Omata M, Kobayashi N, Ueda K, Kawazu I. 2021. First Observation of Pregnancy and Parturition in a Captive Pantropical Spotted Dolphin (Stenella attenuata). Mammal Study, 46(4): 1–6.
Kobayashi N, Okabe H, Higashi N, Miyahara H, Uchida S. 2021. Diel patterns in singing activity of humpback whales in a winter breeding area in Okinawa (Ryukyuan) waters. Marine Mammal Science. 2021: 1-11.
Kobayashi N, Ozawa S, Hanahara N, Tokutake K, Kaneshi T, Inoue K, Okabe H, Miyamoto K, Ueda K. 2021. The first record of a Longman’s beaked whale (Indopacetus pacificus) newborn neonate found on Miyako Island, Okinawa, Japan. Marine Biodiversity Records. 14:4.
Kobayashi N, Tokutake K, Yoshida H, Okabe H, Miyamoto K, Ito H, Kawazu I, Ueda K. 2021. The First Stranding Record of Longman’s Beaked Whale (Indopacetus pacificus) in Okinawa, Japan. Aquatic Mammals. 47(2): 153-174.
Acebes J. M. V, Okabe H, Kobayashi N, Nakagun S, Sakamoto T, Hirney B, Higashi N, Uchida S. 2021. Interchange and movements of humpback whales (Megaptera novaeangliae) between western North Pacific winter breeding grounds in northern Luzon, Philippines and Okinawa, Japan. Journal of cetacean research and management. 22(1): 39-53.
Mitani Y, Kobayashi N, Okabe H. 2020. The North-South migration of humpback whales: Photo-identification match of an individual from the Pacific coast of eastern Hokkaido and breeding areas in Okinawa. Mammalian Science. 60(2): 170.
Hill M. C, Bradford A. L, Steele D, Baker C. S, Ligon A. D, Acebes J. M. V, Filatova O. A, Hakala S, Kobayashi N, Morimoto Y, Okabe H, Okamoto R, Rivers J, Sato T, Titova O. V, Uyeyama R. K, Oleson E. M. 2020. Found: a missing breeding ground for endangered western North Pacific humpback whales in the Mariana Archipelago. Endangered Species Research. 41: 91-103.
Okabe H, Kobayashi N, Higashi N, Tokutake K, Miyahara H, Uchida S. 2019. Strandings and bycatches of humpback whales (Megaptera novaeangliae) between 1996 and 2018 around Okinawa Island, Japan. Fauna Ryukyuana. 49: 13-22.
Oka S, Kobayashi N, Sato T, Ueda K, Yamagishi M. 2019. Sound production in the coconut crab, the largest terrestrial crustacean. Zoology. 137: 125710.
Titova O. V, Filatova O. A, Fedutin I. D, Ovsyanikova E. N, Okabe H, Kobayashi N, Acebes J. M. V, Burdin A. M, Hoyt E. 2018. Photo-identification matches of humpback whales (Megaptera novaeangliae) from feeding areas in Russian Far East seas and breeding grounds in the North Pacific. Marine Mammal Science. 34: 100-112.
Kobayashi N, Okabe H, Kawazu I, Higashi N, Kato K, Miyahara H, Nakamura G, Kato H, Uchida S. 2017. Distribution and Local Movement of Humpback Whales in Okinawan Waters Depend on Sex and Reproductive Status. Zoological Science. 34: 58-63.
Kawazu I, Okabe H, Kobayashi N. 2017. Direct Observation of Mating Behavior Involving One Female and Two Male Loggerhead Turtles in the Wild. Current Herpetology 36 (1): 69-72.
Kobayashi N, Okabe H, Kawazu I, Higashi N, Miyahara H, Kato H, Uchida S. 2016. Peak Mating and Breeding Period of the Humpback Whale (Megaptera novaeangliae) in Okinawa Island, Japan. Open Journal of Animal Sciences, 6: 169–179.
Kobayashi N, Okabe H, Kawazu I, Higashi N, Miyahara H, Kato H, Uchida S. 2016. Spatial distribution and habitat use patterns of humpback whales in Okinawa, Japan. Mammal Study 41: 207–214.
Nakashima T, Kobayashi N, Yamada H, Katsumata T, Yoshida R, Kato H, Okabe H, Kawazu I, Yanase Y, Omine M, Terada M, Sugioka H, Kyo M. 2015. Repellence Effect of the New Sound for Underwater Speaker of Hydrofoil. TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation 9: 207–211.
Yamada H, Kobayashi N, Nakashima T, Kato H. 2015. Development of the Effective Underwater Speaker Sound Modulated by Audible Sound Frequency Range of Large Cetaceans for Avoidance with Ship Collision. TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation 9: 213–217.
2023年4月: 国際学術誌Marine Mammal Science掲載論文が同誌で最も引用された論文の1編として”Wiley Top Cited Article 2021-2022”を受賞 (Diel patterns in singing activity of humpback whales in a winter breeding area in Okinawan (Ryukyuan) waters)