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J-GLOBAL ID:201401093411871416 Update date: Sep. 30, 2024

Okuyama Junichi

オクヤマ ジュンイチ | Okuyama Junichi
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Papers (45)

  • Junichi Okuyama, Masahiro Nakagawa, Takeshi Taneda. A rapid increase in tropical species of grouper (Perciformes: Serranidae) in the temperate waters, the Goto Islands, Japan. PLOS ONE. 2024. 19. 9. e0308715-e0308715
  • Takuji Noda, Takuya Koizumi, Naoto Yukitake, Daisuke Yamamoto, Tetsuro Nakaizumi, Kotaro Tanaka, Junichi Okuyama, Kotaro Ichikawa, Takeshi Hara. Animal-borne soundscape logger as a system for edge classification of sound sources and data transmission for monitoring near-real-time underwater soundscape. Scientific reports. 2024. 14. 1. 6394-6394
  • Junichi Okuyama, Masahiro Nakagawa. Seasonal fluctuation in the length-weight relationship of groupers in the Goto Islands, Japan. Thalassas: An International Journal of Marine Sciences. 2023
  • Tohya Yasuda, Junji Kinoshita, Yohei Niino, Junichi Okuyama. Vertical migration patterns linked to body and environmental temperatures in chub mackerel. Progress in Oceanography. 2023. 213. 103017-103017
  • K Fujita, H Nishizawa, J Okuyama, M Arita, S Takuma, T Narazaki, A Watabe. Polymorphic foraging tactics in a marine reptile: insight from horizontal movement and dive behavior analyses. Marine Ecology Progress Series. 2023. 707. 115-129
  • 渡辺 伸一, 野田 琢嗣, 小泉 拓也, 依田 憲, 吉田 誠, 岩田 高志, 西澤 秀明, 奥山 隼一, 青木 かがり, 木村 里子, et al. Biologging intelligent Platform(BiP)により実現する バイオロギングデータの共有と海洋の可視化. 日本生態学会誌. 2023. 73. 1. 9-22
  • Narumi Kishida, Junichi Okuyama, Mamiko Arita, Natsuki Kume, Kento Fujita, Hideaki Nishizawa, Shinsuke Torisawa, Yasushi Mitsunaga. A validation of abstracted dive profiles relayed via the Argos satellite system: a case study of a loggerhead turtle. Animal Biotelemetry. 2022. 10. 1
  • Junichi Okuyama, Akemi Watabe, Shunichi Takuma, Kentaro Tanaka, Kotaro Shirai, Naoko Murakami-Sugihara, Mamiko Arita, Kento Fujita, Hideaki Nishizawa, Tomoko Narazaki, et al. Cover Image. Diversity and Distributions. 2022
  • Junichi Okuyama, Akemi Watabe, Shunichi Takuma, Kentaro Tanaka, Kotaro Shirai, Naoko Murakami-Sugihara, Mamiko Arita, Kento Fujita, Hideaki Nishizawa, Tomoko Narazaki, et al. Latitudinal cline in the foraging dichotomy of loggerhead sea turtles reveals the importance of East China Sea for priority conservation. Diversity and Distributions. 2022. 28. 8. 1568-1581
  • Junichi Okuyama, Tomofumi Yamaguchi. Individual spawning performance and mating pair combinations in captive grouper aggregations. Environmental Biology of Fishes. 2022. 105. 3. 385-401
  • Kohei Tabuki, Hideaki Nishizawa, Osamu Abe, Junichi Okuyama, Shigeo Tanizaki. Utility of carapace images for long-term photographic identification of nesting green turtles. Journal of Experimental Marine Biology and Ecology. 2021. 545. 151632-151632
  • Junichi Okuyama, Scott R. Benson, Peter H. Dutton, Jeffrey A. Seminoff. Changes in dive patterns of leatherback turtles with sea surface temperature and potential foraging habitats. Ecosphere. 2021. 12. 2
  • Junichi Okuyama, Hisakazu Ishii, Shigeo Tanizaki, Tomoko Suzuki, Osamu Abe, Hideaki Nishizawa, Aya Yano, Masako Tsujimura, Takakazu Ishigaki, Takashi Ishigaki, et al. Quarter-Century (1993-2018) Nesting Trends in the Peripheral Populations of Three Sea Turtle Species at Ishigakijima Island, Japan. CHELONIAN CONSERVATION AND BIOLOGY. 2020. 19. 1. 101-110
  • Junichi Okuyama, Maika Shiozawa, Daisuke Shiode. Heart rate and cardiac response to exercise during voluntary dives in captive sea turtles (Cheloniidae). BIOLOGY OPEN. 2020. 9. 2
  • Maika Shiozawa, Daisuke Shiode, Junichi Okuyama, Fuxiang Hu, Tadashi Tokai. Behavioural characteristics of loggerhead turtles (Caretta caretta) in a submerged bag net of a setnet observed in a bycatch simulation and the development of a turtle releasing device. AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS. 2019. 29. 12. 2107-2115
  • Junichi Okuyama, Hirotoshi Shishidou, Takeshi Hayashibara. Post-release horizontal and vertical behavior and philopatry of deepwater longtail red snapper Etelis coruscans around a bank. FISHERIES SCIENCE. 2019. 85. 2. 361-368
  • Nanami, A., Sato, T., Kawabata, Y., Okuyama, J. Spawning aggregation of white-streaked grouper Epinephelus ongus: Spatial distribution and annual variation in the fish density within a spawning ground. PeerJ. 2017. 2017. 2. e3000
  • Junichi Okuyama, Jeffrey A. Seminoff, Peter H. Dutton, Scott R. Benson. Fine-Scale Monitoring of Routine Deep Dives by Gravid Leatherback Turtles during the Internesting Interval Indicate a Capital Breeding Strategy. FRONTIERS IN MARINE SCIENCE. 2016. 3. SEP
  • Junichi Okuyama, Kana Nakajima, Kenta Matsui, Yuichi Nakamura, Kazuaki Kondo, Takahiro Koizumi, Nobuaki Arai. Application of a computer vision technique to animal-borne video data: Extraction of head movement to understand sea turtles' visual assessment of surroundings. Animal Biotelemetry. 2015. 3. 1
  • Noda Takuji, Okuyama Junichi, Kawabata Yuuki, Mitamura Hiromichi, Arai Nobuaki. Harvesting energy from the oscillation of aquatic animals: testing a vibration-powered generator for bio-logging data logger systems. Journal of Advanced Marine Science and Technology Society. 2014. 20. 1. 37-43

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