Basic Information

Faculty

• 農学部

Academic Degree

• 修士（情報学）(京都大学)
• 博士（情報学）(京都大学)

ID,URL

• J-Global ID

  201601013748458024

researchmap URL

• https://researchmap.jp/7000014120

Research

Research Topics, Overview of the research

• Research Topics

  -Molecular ecology of sea turtles
  -Functional morphology and locomotion of turtles
  -Biologging and biotelemetry of aquatic animals

• Overview of the research

  I am trying to understand ecology, behavior, and function of animals through quantifying and visualizing various information of them. Study animals are aquatic animals, mainly sea turtles.

Research Areas

• Environmental science/Agricultural science, Biological resource conservation

Papers

• Gravid green turtles employ a mixed capital-income breeding strategy where food is abundant

  Junichi Okuyama; Narumi Kishida; Hideaki Nishizawa; Yuka Obe; Takuro Mogi; Takuya Koizumi; Takuji Noda; Tohya Yasuda; Yuuki Kawabata; Takashi Yokota; Kotaro Ichikawa; Yasushi Mitsunaga; Nobuaki Arai

  Marine Ecology Progress Series, 15 Jul. 2025, Peer-reviewed

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• Hematological and Blood Biochemical Variations, and Their Correlation with Body Condition in Wild-Foraging Sea Turtles of the Celebes Sea

  Syamsyahidah Samsol; Mohd Uzair Rusli; Jeethvendra Kirishnamoorthie; Nishizawa Hideaki; Hussein Muin; Juanita Joseph

  Sains Malaysiana, 30 Apr. 2025, Peer-reviewed

  
• Updated global conservation status and priorities for marine turtles

  BP Wallace; AN Bandimere; FA Abreu-Grobois; H Acosta; J Akiti; M Akomedi; J Alfaro-Shigueto; CD Allen; D Angenda; I Ayissi; J Azanza Ricardo; KG Barrientos-Muñoz; H Barrios-Garrido; KA Bjorndal; E Bretón Vargas; AC Broderick; R Calderón Peña; C Carreras; SA Ceriani; LP Colman; AA Cortés-Gómez; L Crespo; E Cuevas; A Dah; A de Groene; C Delgado Trejo; S Demetropoulos; A Dias; C Diez; NA Dos Santos; JS Dossou Bodjrenou; MM Early Capistrán; KL Eckert; C Eizaguirre; L Ekanayake; M Escobedo Mondragón; N Esteban; D Feliciano; RS Fernandes; B Ferreira-Airaud; A Foley; LG Fonseca; Y Forneiro Martín-Viaña; S Fossette; MMPB Fuentes; J Gaglo; AR Gaos; D Gidsicki; B Giffoni; A Girard; M Girondot; MH Godfrey; BJ Godley; RJ González Díaz Mirón; M Hamann; JM Hancock; CE Hart; GC Hays; R Herrera; S Hochscheid; S Hoekstra; P Huerta-Rodríguez; G Inteca; T Ishihara; MP Jensen; I Jribi; N Kale; Y Kaska; S Kelez; IK Kelly; S Köhnk; P Lara; M Lasfargue; AM Lauritsen; DZM Le Gouvello; A Liusamoa; M López; MC López-Castro; M Lopez-Mendilaharsu; CMM Louro; T Luna; CA Madden; D Mahabir; A Mancini; M Manoharakrishnan; MA Marcovaldi; RC Martínez-Portugal; A Mastrogiacomo; EIOP Matilde; B Mawunyo Adzagba; S Mbungu; C Miranda; F Moncada; BA Morales-Mérida; JA Mortimer; SKK Murakawa; MA Nalovic; R Nel; R Ngafack; H Nishizawa; M Ogou; A Panagopoulou; AR Patricio; E Peralta Buendía; AD Phillott; NJ Pilcher; MMR Polyak; RIT Prince; EH Raynus; RD Reina; JM Rguez-Baron; AE Robbins; AS Santos; AL Sarti-Martínez; G Schofield; JA Seminoff; I Serrano; BM Shamblin; K Shanker; BA Stacy; G Stahelin; MK Staman; M Stelfox; KR Stewart; A Taxonera; AD Tucker; O Turkozan; RP van Dam; CH van de Geer; S Viera; L West; AU Whiting; SD Whiting; L Wienand; SR Wijntuin; N Wildermann; PM Zárate; P Casale; A DiMatteo; BJ Hurley; BJ Hutchinson; SM Maxwell; ZA Posnik; I Rodriguez; RB Mast

  Endangered Species Research, 04 Apr. 2025, Peer-reviewed

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• Biologging intelligent Platform (BiP): an integrated and standardized platform for sharing, visualizing, and analyzing biologging data

  Katsufumi Sato; Shinichi Watanabe; Takuji Noda; Takuya Koizumi; Ken Yoda; Yuuki Y. Watanabe; Kentaro Q. Sakamoto; Teijiro Isokawa; Makoto A. Yoshida; Kagari Aoki; Akinori Takahashi; Takashi Iwata; Hideaki Nishizawa; Takuya Maekawa; Ryo Kawabe; Yutaka Watanuki

  Movement Ecology, 01 Apr. 2025, Peer-reviewed

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• High Spatiotemporal Diversity of Sand Temperatures and Estimated Hatchling Sex Ratios of Green Turtle in an Important North Pacific Rookery

  Yusuke Sugimoto; Satomi Kondo; Hideaki Nishizawa; Tomoatsu Ijichi; Yoji Yamamoto; Carlos A. Strüssmann; Shohei Kobayashi

  Marine Ecology, 06 Mar. 2025, Peer-reviewed

  
• Efficient wildlife monitoring: Deep learning-based detection and counting of green turtles in coastal areas

  Naoya Noguchi; Hideaki Nishizawa; Taro Shimizu; Junichi Okuyama; Shohei Kobayashi; Kazuyuki Tokuda; Hideyuki Tanaka; Satomi Kondo

  Ecological Informatics, May 2025, Peer-reviewed

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• Effect of seasonal changes and river structures on the behavioral patterns of the hybrid giant salamander in the Kamo River, Japan

  Hara K.; Tabuchi S.; Nishizawa H.; Nishikawa K.; Mitamura H.

  Herpetological Conservation and Biology, 2024, Peer-reviewed

  
• Unraveling fine-scale genetic structure in endangered hawksbill turtle (Eretmochelys imbricata) in Indonesia: implications for management strategies

  Lalu M. Iqbal Sani; Jamaludin; Gunawan Hadiko; Ema Herma; Emi Inoguchi; Michael P. Jensen; Christine A. Madden; Hideaki Nishizawa; Leni Maryani; Achmad Farajallah; Beginer Subhan; Dietriech G. Bengen; Hawis Madduppa

  Frontiers in Marine Science, 02 Apr. 2024, Peer-reviewed

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• Latest and comprehensive mitochondrial DNA haplotype data on green and hawksbill turtles collected in their habitats in Japan

  Tomoko Hamabata; Kazunari Kameda; Ryota Hayashi; Junichi Okuyama; Isao Kawazu; Hideaki Nishizawa

  Frontiers in Marine Science, 28 Mar. 2024, Peer-reviewed

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• Overview of the population genetics and connectivity of sea turtles in the East Asia Region and their conservation implications

  Connie Ka Yan Ng; Takashi Ishihara; Tomoko Hamabata; Hideaki Nishizawa; Min Liu; Jia-hao Song; Tsung Hsien Li; Chia-Ling Fong; Dae Yeon Moon; Il Hun Kim

  Frontiers in Marine Science, 08 Mar. 2024, Peer-reviewed

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• Trophic niche partitioning of Mekong giant catfish Pangasianodon gigas in a tropical reservoir: evidence from stable isotope and fatty acid analyses

  Ayano Medo; Nobuhito Ohte; Keisuke Koba; Nobuaki Arai; Yasushi Mitsunaga; Hideaki Nishizawa; Manabu Kume; Thavee Viputhanumas; Kiattipong Kamdee; Chakrit Saengkorakot; Koki Ikeya; Iroha Yamada; Tatsuya Sugawara; Yuki Manabe; Akiko S. Goto; Ayako Yokoyama; Hiroyuki Yamane; Hiroki Kajitani; Daichi Kojima; Takashi Nose; Hiromichi Mitamura

  Limnology, 24 Feb. 2024, Peer-reviewed

  
• Connectivity between sea turtles off Jeju Island on the Korean Peninsula, and other populations in the western Pacific

  Sook-Jin Jang; Kyungsik Jo; Soojin Jang; Hideaki Nishizawa; Miyeon Kim; George Balazs; Jibin Im; Ho Young Suk; Byung-Yeob Kim; Taewon Kim

  Frontiers in Marine Science, 16 Feb. 2024, Peer-reviewed

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• Effect of noise on sand digging and emergence activities in green turtle (Chelonia mydas) hatchlings

  Yuya Maeda; Hideaki Nishizawa; Satomi Kondo; Tomoatsu Ijichi; Kotaro Ichikawa

  Journal of Experimental Marine Biology and Ecology, Jan. 2024, Peer-reviewed

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• Health status and genetic compositions of green turtles (Chelonia mydas) foraging in Brunei Bay

  Juanita Joseph; Hideaki Nishizawa; Siti Nabilla Jalimin; Rafidah Othman; Saifullah Arifin Jaaman; James Bali; Zhang Xuelei

  PLOS ONE, 09 Nov. 2023, Peer-reviewed

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• Striped catfish (Pangasianodon hypophthalmus) exploit food sources across anaerobic decomposition- and primary photosynthetic production-based food chains

  Ayano Medo; Nobuhito Ohte; Hiroki Kajitani; Takashi Nose; Yuki Manabe; Tatsuya Sugawara; Yuji Onishi; Akiko S. Goto; Keisuke Koba; Nobuaki Arai; Yasushi Mitsunaga; Manabu Kume; Hideaki Nishizawa; Daichi Kojima; Ayako Yokoyama; Toshiro Yamanaka; Thavee Viputhanumas; Hiromichi Mitamura

  Scientific Reports, 26 Aug. 2023, Peer-reviewed

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• Marine turtle nesting and hatching in Tun Mustapha Park, Malaysia, revealed by community-based monitoring. Herpetological Conservation and Biology

  Jolis G; Joseph J; Nishizawa H; Isnain I; Muin H

  Herpetological Conservation and Biology, Aug. 2023, Peer-reviewed

  
• Variations in body condition of green turtles (Chelonia mydas) in two nearby foraging grounds indicate their sensitivity to foraging habitats

  Hideaki Nishizawa; Juanita Joseph; Gavin Jolis; Irwan Isnain; Hussien Muin; Sofia Johari; Ejria Saleh

  Aquatic Conservation: Marine and Freshwater Ecosystems, 17 Nov. 2023, Peer-reviewed

  
• Illegal tortoiseshell harvest of hawksbill turtles (Eretmochelys imbricata) in Southeast Asia: Evidence from Baturua Reef, Semporna, Sabah, Malaysia

  Jeethvendra K; Nishizawa H; Alin J; Muin H; Joseph J

  Journal of Sustainability Science and Management, Jul. 2023, Peer-reviewed

  
• Polymorphic foraging tactics in a marine reptile: insight from horizontal movement and dive behavior analyses

  K Fujita; H Nishizawa; J Okuyama; M Arita; S Takuma; T Narazaki; A Watabe

  Marine Ecology Progress Series, 09 Mar. 2023, Peer-reviewed

  
• 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

  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; 坂本 健太郎; 高橋 晃周; 前川 卓也; 楢崎 友子; 三田村 啓理; 佐藤 克文

  日本生態学会誌, 2023, Peer-reviewed

  
• Differences in the morphological body condition index of sea turtles between species and size classes

  Hideaki Nishizawa; Juanita Joseph

  Journal of the Marine Biological Association of the United Kingdom, 11 Oct. 2022

  
• A validation of abstracted dive profiles relayed via the Argos satellite system: a case study of a loggerhead turtle

  Narumi Kishida; Junichi Okuyama; Mamiko Arita; Natsuki Kume; Kento Fujita; Hideaki Nishizawa; Shinsuke Torisawa; Yasushi Mitsunaga

  Animal Biotelemetry, Dec. 2022, Peer-reviewed

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• Latitudinal cline in the foraging dichotomy of loggerhead sea turtles reveals the importance of East China Sea for priority conservation

  Junichi Okuyama; Akemi Watabe; Shunichi Takuma; Kentaro Tanaka; Kotaro Shirai; Naoko Murakami‐Sugihara; Mamiko Arita; Kento Fujita; Hideaki Nishizawa; Tomoko Narazaki; Yoshiya Yamashita; Kazunari Kameda

  Diversity and Distributions, Aug. 2022, Peer-reviewed

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• Does photographing green turtles (Chelonia mydas) under different environmental media reduce their identification accuracy?

  Kohei Tabuki; Hideaki Nishizawa; Satomi Kondo

  Marine Turtle Newsletter, Jul. 2022, Peer-reviewed

  
• Morphology, Diet, and Reproduction of Coastal Hydrophis Sea Snakes (Elapidae: Hydrophiinae) at Their Northern Distribution Limit

  Kanta Fujishima; Takahide Sasai; Yusuke Hibino; Hideaki Nishizawa

  Zoological Science, 02 Sep. 2021, Peer-reviewed

  
• Sand Particle Size Influences Nest Site Selection of Green Turtles (Chelonia mydas) Differently in East and West Peninsular Malaysia

  Sarahaizad Mohd Salleh; Hideaki Nishizawa; Shahrul Anuar Mohd Sah; Ahmed Jalal; Khan Chowdhury; Mohd Uzair Rusli

  Herpetological Conservation and Biology, Dec. 2021, Peer-reviewed

  
• Utility of carapace images for long-term photographic identification of nesting green turtles

  Kohei Tabuki; Hideaki Nishizawa; Osamu Abe; Junichi Okuyama; Shigeo Tanizaki

  Journal of Experimental Marine Biology and Ecology, Dec. 2021, Peer-reviewed

  
• Attraction of an artificial reef: a migratory demersal flounder remains in shallow water under high temperature conditions in summer

  Hiromichi Mitamura; Hideaki Nishizawa; Yasushi Mitsunaga; Kotaro Tanaka; Junichi Takagi; Takuji Noda; Hirotaka Tsujimura; Hiroaki Omi; Ryo Sakurai; Masaaki Sato; Nobuaki Arai; Masakazu Hori

  Environmental Biology of Fishes, 27 Sep. 2021

  
• Sensing underground activity: diel digging activity pattern during nest escape by sea turtle hatchlings

  Hideaki Nishizawa; Yuichiro Hashimoto; Mohd Uzair Rusli; Kotaro Ichikawa; Juanita Joseph

  Animal Behaviour, Jul. 2021, Peer-reviewed

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• Boldness–exploration behavioral syndrome in wild sub-adult green sea turtles caught at Oita, Japan

  Hiromi Kudo; Hideaki Nishizawa; Kei Uchida; Katsufumi Sato

  Applied Animal Behaviour Science, Mar. 2021, Peer-reviewed

  
• Quarter-Century (1993-2018) Nesting Trends in the Peripheral Populations of Three Sea Turtle Species at Ishigakijima Island, Japan

  Junichi Okuyama; Hisakazu Ishii; Shigeo Tanizaki; Tomoko Suzuki; Osamu Abe; Hideaki Nishizawa; Aya Yano; Masako Tsujimura; Takakazu Ishigaki; Takashi Ishigaki; Masahiro Kobayashi; Hiroyuki Yanagida

  CHELONIAN CONSERVATION AND BIOLOGY, Jun. 2020, Peer-reviewed

  
• Gut morphometry represents diet preference to indigestible materials in the largest freshwater fish, Mekong giant catfish (Pangasianodon gigas)

  Medo A; Nishizawa H; Yokoyama A; Kume M; Mitsunaga Y; Arai N; Yamane H; Ikeya K; Viputhanumas T; Mitamura H

  Zoological Science, 2020

  
• Reproductive seasonality and environmental effects in green turtle (Chelonia mydas) nesting at Penang Island, Malaysia

  Mohd Salleh S; Nishizawa H; Mohd Sah SA; Khan Chowdhury AJ

  Journal of the Marine Biological Association of the United Kingdom, 2020, Peer-reviewed

  
• Mass sea turtle slaughter at Pulau Tiga, Malaysia: Genetic studies indicate poaching locations and its potential effects

  Joseph J; Nishizawa H; Alin JM; Othman R; Jolis G; Isnain I; Nais J

  Global Ecology and Conservation, 2019, Peer-reviewed

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• Record of fishes sampled in Kita-no-ura cove (Lützow-Holm Bay, East Antarctica) in January 2019

  Nishizawa H; Ichikawa K; Asai S; Arai N; Mitamura H; Miyamoto Y; Iwami T

  Antarctic Record, 2019, Peer-reviewed

  
• A rare species of Uropterygius (Anguilliformes, Muraenidae) found in the stomach content of a yellow-lipped sea krait from Japan

  Fumihito Tashiro; Runa Tabata; Hideaki Nishizawa; Hiromichi Mitamura

  Check List, 19 Jan. 2018, Peer-reviewed

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• Comparison of the rookery connectivity and migratory connectivity: insight into movement and colonization of the green turtle (Chelonia mydas) in Pacific-Southeast Asia

  Nishizawa H; Joseph J; Chong YK; Syed Kadir SA; Isnain I; Ganyai TA; Jaaman S; Zhang X

  Marine Biology, 2018, Peer-reviewed

  
• Importance of Sand Particle Size and Temperature for Nesting Success of Green Turtles in Penang Island, Malaysia

  Mohd Salleh S; Nishizawa H; Ishihara T; Mohd Sah SA; Jalal KCA

  Chelonian Conservation and Biology, 2018, Peer-reviewed

  
• Assessing tag loss and survival probabilities in green turtles (Chelonia mydas) nesting in Malaysia

  Nishizawa H; Joseph J; Chew VY-C; Liew H-C; Chan E-H

  Journal of the Marine Biological Association of the United Kingdom, 2018, Peer-reviewed

  
• Spatiotemporal preferences in nesting of the hawksbill turtle (Eretmochelys imbricata) in Melaka, Malaysia

  Mohd Salleh S; Nishizawa H; Mohd Sah SA; Safri MF

  Journal of the Marine Biological Association of the United Kingdom, 2018, Peer-reviewed

  
• Intra-specific variation in skull morphology of juvenile Chelonia mydas in the southwestern Atlantic Ocean

  Coelho VF; Domit C; Broadhurst MK; Prosdocimi L; Nishizawa H; Almeida FS

  Marine Biology, 2018, Peer-reviewed

  
• Electronic tag retention and survival of giant salamanders after surgical implantation

  Tabata R; Nishizawa H; Hori T; Seki S; Nishikawa K; Mitamura H

  Current Herpetology, 2018, Peer-reviewed

  
• Stock composition of green turtles (Chelonia mydas) foraging in the Ryukyu Archipelago differs with size class

  Hamabata T; Nishizawa H; Kawazu I; Kameda K; Kamezaki N; Hikida T

  Marine Ecology Progress Series, 2018, Peer-reviewed

  
• Utilization of Brunei Bay (Malaysia) as a developmental and foraging habitat for hawksbill turtle (Eretmochelys imbricata)

  Juanita Joseph; Hideaki Nishizawa; Marina Hassan; Mohd Ihwan bin Zakariah; Saifullah A. Jaaman; Zhang Xuelei

  REGIONAL STUDIES IN MARINE SCIENCE, Nov. 2017, Peer-reviewed

  
• Stomach contents of three sea kraits (Hydrophiinae: Laticauda spp.) in the Ryukyu Islands, Japan

  Runa Tabata; Fumihito Tashiro; Hideaki Nishizawa; Junichi Takagi; Noriko Kidera; Hiromichi Mitamura

  Current Herpetology, 01 Aug. 2017, Peer-reviewed

  
• Differences in Vocalisation Patterns of Dugongs Between Fine-Scale Habitats Around Talibong Island, Thailand

  Kotaro Tanaka; Kotaro Ichikawa; Hideaki Nishizawa; Kongkiat Kittiwattanawong; Nobuaki Arai; Hiromichi Mitamura

  ACOUSTICS AUSTRALIA, Aug. 2017, Peer-reviewed

  
• Ventilatory and behavioural responses of the marbled sole Pseudopleuronectes yokohamae to progressive hypoxia

  H. Nishizawa; Y. Kono; N. Arai; J. Shoji; H. Mitamura

  JOURNAL OF FISH BIOLOGY, Jun. 2017, Peer-reviewed

  
• Genetic stock compositions and natal origin of green turtle (Chelonia mydas) foraging at Brunei Bay

  Juanita Joseph; Hideaki Nishizawa; Wahidah M. Arshaad; Syed Abdullah S. Kadir; Saifullah A. Jaaman; James Bali; Noorul Azliana Jamaludin; Masaya Katoh

  GLOBAL ECOLOGY AND CONSERVATION, Apr. 2016, Peer-reviewed

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• Genetic structure and diversity of green turtles (Chelonia mydas) from two rookeries in the South China Sea

  Joseph J; Nishizawa H

  Journal of Sustainability Science and Management, 2016, Peer-reviewed

  
• Behavioral changes of Japanese flounder Paralichthys olivaceus in response to decrease in dissolved oxygen

  Kono Yuka; Nishizawa Hideaki; Arai Nobuaki; Mitamura Hiromichi

  Journal of Advanced Marine Science and Technology Society, 2016, Peer-reviewed

  
• Spatio-temporal patterns of mitochondrial DNA variation in hawksbill turtles (Eretmochelys imbricata) in Southeast Asia

  Hideaki Nishizawa; Juanita Joseph; Yee Kuen Chong

  JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY, Jan. 2016, Peer-reviewed

  
• Body size distribution demonstrates flexible habitat shift of green turtle (Chelonia mydas)

  Ryota Hayashi; Hideaki Nishizawa

  GLOBAL ECOLOGY AND CONSERVATION, Jan. 2015, Peer-reviewed

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• Feeding kinematics of freshwater turtles: what advantage do invasive species possess?

  Hideaki Nishizawa; Runa Tabata; Tomoya Hori; Hiromich Mitamura; Nobuaki Arai

  ZOOLOGY, Oct. 2014, Peer-reviewed

  
• Juvenile green turtles on the northern edge of their range: mtDNA evidence of long-distance westward dispersals in the northern Pacific Ocean

  Hideaki Nishizawa; Tomoko Narazaki; Takuya Fukuoka; Katsufumi Sato; Tomoko Hamabata; Masato Kinoshita; Nobuaki Arai

  ENDANGERED SPECIES RESEARCH, 2014, Peer-reviewed

  
• Genetic composition of loggerhead turtle feeding aggregations: migration patterns in the North Pacific

  Hideaki Nishizawa; Tomoko Narazaki; Takuya Fukuoka; Katsufumi Sato; Tomoko Hamabata; Masato Kinoshita; Nobuaki Arai

  ENDANGERED SPECIES RESEARCH, 2014, Peer-reviewed

  
• Composition of green turtle feeding aggregations along the Japanese archipelago: implications for changes in composition with current flow

  Hideaki Nishizawa; Yuta Naito; Hiroyuki Suganuma; Osamu Abe; Junichi Okuyama; Koichi Hirate; Shinichi Tanaka; Emi Inoguchi; Koji Narushima; Kiyoshige Kobayashi; Hisakazu Ishii; Shigeo Tanizaki; Masato Kobayashi; Akira Goto; Nobuaki Arai

  MARINE BIOLOGY, Oct. 2013, Peer-reviewed

  
• Decision tree classification of behaviors in the nesting process of green turtles (Chelonia mydas) from tri-axial acceleration data

  Hideaki Nishizawa; Takuji Noda; Tohya Yasuda; Junichi Okuyama; Nobuaki Arai; Masato Kobayashi

  Journal of Ethology, Sep. 2013, Peer-reviewed

  
• Ontogenetic Scaling of the Humerus in Sea Turtles and Its Implications for Locomotion

  Hideaki Nishizawa; Masakazu Asahara; Naoki Kamezaki

  ZOOLOGICAL SCIENCE, Mar. 2013, Peer-reviewed

  
• Mitochondrial DNA variation in hawksbill turtles (Eretmochelys imbricata) nesting on Ishigaki Island, Japan

  Nishizawa H; Okuyama J; Abe O; Kobayashi M; Arai N

  Marine Turtle Newsletter, 2012, Peer-reviewed

  
• Population genetic structure and implications for natal philopatry of nesting green turtles Chelonia mydas in the Yaeyama islands, Japan

  Hideaki Nishizawa; Osamu Abe; Junichi Okuyama; Masato Kobayashi; Nobuaki Arai

  Endangered Species Research, 2011, Peer-reviewed

  
• Differences in the skull morphology between juvenile and adult green turtles: Implications for the ontogenetic diet shift

  Nishizawa H; Asahara M; Kamezaki N; Arai N

  Current Herpetology, 2010, Peer-reviewed

  
• Ontogenetic changes in the flipper-beating behavior in free-ranging versus tank-housed green turtle (Chelonia mydas) juveniles

  Nishizawa H; Okuyama J; Abe O; Kobayashi M; Yoseda K; Arai N

  Coastal Marine Science, 2010, Peer-reviewed

  
• Comparative Phylogeny and Historical Perspectives on Population Genetics of the Pacific Hawksbill (Eretmochelys imbricata) and Green Turtles (Chelonia mydas), Inferred from Feeding Populations in the Yaeyama Islands, Japan

  Hideaki Nishizawa; Junichi Okuyama; Masato Kobayashi; Osamu Abe; Nobuaki Arai

  ZOOLOGICAL SCIENCE, Jan. 2010, Peer-reviewed

  
• Ontogeny of the dispersal migration of green turtle (Chelonia mydas) hatchlings

  Junichi Okuyama; Osamu Abe; Hideaki Nishizawa; Masato Kobayashi; Kenzo Yoseda; Nobuaki Arai

  JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY, Oct. 2009, Peer-reviewed

  

Misc.

• Sea Turtles of Southeast Asia

  Abdul Rahman R.; Amey T.; Ballamu F.; Benson S.; Braz J.; Chea P.; Cuon CT; Dichaves J.; Dunbar S.; Gearheart G.; Glue M.; Hamann M.; Hemelíková A.; Hennicke J.; Hien BTT; Inoguchi E.; Ith SO; Joseph J.; Linn NN; Long SL; Lontoh D.; Mast R.; Lin SMNN; Mortimer JA; Myint K.; Ngan NLT; Nishizawa H.; Oo MT; Pakiding F.; Pilcher N.; Putra KS; Reischig T.; Rog S.; Sem S.; Srisiri S.; Tak C.; Tiong RHY; Tiwari M.; Trono R.; Tum S.; Zai M.; Zohar K.; Zoubek P.

  SWOT Report, 2024

  
• 水圏生物の行動情報の取得 11 石垣島・西表島周辺におけるエラブウミヘビ属3種の胃内容物分析

  田畑瑠那; 田城文人; 西澤秀明; 高木淳一; 木寺法子; 三田村啓理; 三田村啓理

  日本水産学会大会講演要旨集, 2017

  
• Differences in Vocalisation Patterns of Dugongs Between Fine-Scale Habitats Around Talibong Island, Thailand

  Kotaro Tanaka; Kotaro Ichikawa; Kotaro Ichikawa; Hideaki Nishizawa; Kongkiat Kittiwattanawong; Nobuaki Arai; Nobuaki Arai; Hiromichi Mitamura; Hiromichi Mitamura

  Acoustics Australia, 01 Aug. 2017

  
• Contribution of chemoautotrophic bacteria to food source of freshwater megafish in a reservoir using multiple stable isotopes

  目戸綾乃; 大手信人; 能勢貴司; 梶谷浩希; 大西雄二; 木庭啓介; 荒井修亮; 光永靖; 久米学; 西澤秀明; 児嶋大地; 横山綾子; VIPUTHANUMAS Thavee; 三田村啓理

  日本生態学会大会講演要旨(Web), 2022

  
• バイオロギングによる水圏生物の行動情報の取得-7 アオウミガメの自動個体識別における背甲画像の有効性の検証

  田吹耕平; 西澤秀明; 三田村啓理; 阿部寧; 奥山隼一; 谷崎樹生

  日本水産学会大会講演要旨集, 2020

  
• バイオテレメトリーによる水圏生物の行動情報の取得-8 脂肪酸分析を用いたカイヤンの食性解析

  梶谷浩希; 目戸綾乃; 真鍋祐樹; 菅原達也; 後藤(桜井)晶子; 久米学; 西澤秀明; 荒井修亮; 光永靖; 三田村啓理

  日本水産学会大会講演要旨集(CD-ROM), 2021

  
• Behavior of the nototheniid fish, Trematomus spp., under the sea ice around the Syowa Station in Antarctica

  Kotaro Ichikawa; Hideaki Nishizawa; Saki Asai; Nobuaki Arai; Hiromichi Mitamura; Yoshinori Miyamoto

  5th International Conference on Fish Telemetry, Jun. 2019, Peer-reviewed

  
• 音はウミガメ幼体の同期的な孵化脱出行動の手がかりとなるか？―ウミガメ幼体の発する音および生息地の環境音の特定―

  橋本優一郎; 西澤秀明; Rusli MU; 市川光太郎; Joseph J

  平成30年度日本水産学会春季大会, Mar. 2018

  
• 鴨川下流域における交雑オオサンショウウオの移動範囲の解明

  原廣史朗; 西澤秀明; 三田村啓理; 西川完途; 荒井修亮

  平成30年度日本水産学会春季大会, Mar. 2018

  
• Dive behavior during post-nesting migration of loggerhead turtles nesting in Japan

  Fujita K; Nishizawa H; Okuyama J; Takuma S; Narazaki T; Watabe A

  38th International Sea Turtle Symposium, Feb. 2018

  
• Change in the species composition of sea turtles nesting at Ishigaki Island, Japan where the edges of nesting areas of three species are overlapped

  Okuyama J; Ishii H; Tanizaki S; Suzuki T; Abe O; Nishizawa H; Yano A; Tsujimura M; Ishigaki T; Ishigaki T; Kobayashi M; Kobayashi A; Maekawa S; Yanagida H; Sagawa T; Fujikura Y

  38th International Sea Turtle Symposium, Feb. 2018

  
• Foraging dynamics of green turtles around Japanese waters and distribution boundary observed between subtropical and temperate waters

  Hamabata T; Nishizawa H; Kawazu I; Kameda K; Kamezaki N; Hikida T

  38th International Sea Turtle Symposium, Feb. 2018

  
• Does historical connectivity reflect contemporary connectivity of green turtle (Chelonia mydas)? – A case in Pacific-Southeast Asia

  Nishizawa H; Joseph J; Chong YK; Syed Kadir SA; Isnain I; Ganyai TA; Jaaman S; Zhang X

  38th International Sea Turtle Symposium, Feb. 2018

  
• Spawning and post-spawning movement and behavior of marbled flounder (Pseudopleuronectes yokohamae) in Tokyo Bay, Japan

  Nishizawa H; Mitamura H; Ishii M; Kajiyama M; Arai N; Hori M

  10th International Flatfish Symposium, Nov. 2017

  
• マレーシア・ペナン島におけるアオウミガメ産卵巣数の変動

  西澤秀明; Mohd Salleh S・Mohd Sah SA

  平成29年度日本水産学会春季大会, Mar. 2017

  
• マレーシア・レダン島で産卵するアオウミガメにおける標識脱落率の推定

  西澤秀明; Joseph J・Chew VYC・Liew HC; Chan EH

  平成28年度日本水産学会春季大会, Mar. 2016

  

External funds: Kakenhi

• アオウミガメの初期生活史における温度ストレスへの耐性の評価

  Grant-in-Aid for Scientific Research (C)

  Basic Section 39060:Conservation of biological resources-related

  Kyoto University

  西澤 秀明

  From 01 Apr. 2023, To 31 Mar. 2026, Granted

  アオウミガメ;心拍計測;温度;ウミガメ類;心拍;温度ストレス

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23K05273/

Education

Teaching subject(s)

• From 01 Apr. 2025, To 31 Mar. 2026

  Field Analysis

  X728, Spring, Graduate School of Engineering, 2
• From 01 Apr. 2025, To 31 Mar. 2026

  Information system Analysis

  3250, Spring, Graduate School of Management, 2
• From 01 Apr. 2025, To 31 Mar. 2026

  Biosphere Informatics

  3224, Fall, Graduate School of Informatics, 2
• From 01 Apr. 2025, To 31 Mar. 2026

  Information System Analysis

  3220, Spring, Graduate School of Informatics, 2
• From 01 Apr. 2025, To 31 Mar. 2026

  Laboratory Course in Animal Science II

  5363, Fall, Faculty of Agriculture, 6
• From 01 Apr. 2025, To 31 Mar. 2026

  Laboratory Course in Animal Science I

  5361, Spring, Faculty of Agriculture, 6
• From 01 Apr. 2025, To 31 Mar. 2026

  Bioresource and Environmental Informatics I

  6805, Spring, Faculty of Agriculture, 2
• From 01 Apr. 2025, To 31 Mar. 2026

  Bioresource and Environmental Informatics II

  6807, Fall, Faculty of Agriculture, 2
• From 01 Apr. 2024, To 31 Mar. 2025

  Field Analysis

  X728, Spring, Graduate School of Engineering, 2
• From 01 Apr. 2024, To 31 Mar. 2025

  Information system Analysis

  3250, Spring, Graduate School of Management, 2
• From 01 Apr. 2024, To 31 Mar. 2025

  Biosphere Informatics

  3224, Fall, Graduate School of Informatics, 2
• From 01 Apr. 2024, To 31 Mar. 2025

  Information System Analysis

  3220, Spring, Graduate School of Informatics, 2
• From 01 Apr. 2024, To 31 Mar. 2025

  Laboratory Course in Animal Science II

  5363, Fall, Faculty of Agriculture, 6
• From 01 Apr. 2024, To 31 Mar. 2025

  Bioresource and Environmental Informatics I

  6805, Spring, Faculty of Agriculture, 2
• From 01 Apr. 2024, To 31 Mar. 2025

  Bioresource and Environmental Informatics II

  6807, Fall, Faculty of Agriculture, 2
• From 01 Apr. 2023, To 31 Mar. 2024

  Information system Analysis

  3250, Spring, Graduate School of Management, 2
• From 01 Apr. 2023, To 31 Mar. 2024

  Field Analysis

  X728, Spring, Graduate School of Engineering, 2
• From 01 Apr. 2023, To 31 Mar. 2024

  Biosphere Informatics

  3224, Fall, Graduate School of Informatics, 2
• From 01 Apr. 2023, To 31 Mar. 2024

  Information System Analysis

  3220, Spring, Graduate School of Informatics, 2
• From 01 Apr. 2023, To 31 Mar. 2024

  Bioresource and Environmental Informatics II

  6807, Fall, Faculty of Agriculture, 2
• From 01 Apr. 2023, To 31 Mar. 2024

  Bioresource and Environmental Informatics I

  6805, Spring, Faculty of Agriculture, 2
• From 01 Apr. 2022, To 31 Mar. 2023

  Bioresource and Environmental Informatics I

  6805, Spring, Faculty of Agriculture, 2
• From 01 Apr. 2022, To 31 Mar. 2023

  Information system Analysis

  3250, Spring, Graduate School of Management, 2
• From 01 Apr. 2022, To 31 Mar. 2023

  Field Analysis

  X728, Spring, Graduate School of Engineering, 2
• From 01 Apr. 2022, To 31 Mar. 2023

  Information System Analysis

  3220, Spring, Graduate School of Informatics, 2
• From 01 Apr. 2022, To 31 Mar. 2023

  Biosphere Informatics

  3224, Fall, Graduate School of Informatics, 2
• From 01 Apr. 2022, To 31 Mar. 2023

  Bioresource and Environmental Informatics II

  6807, Fall, Faculty of Agriculture, 2
• From Apr. 2016, To Mar. 2017

  Practice of Basic Informatics (Faculty of Agriculture)

  Fall, 全学共通科目
• From Apr. 2020, To Mar. 2021

  Biosphere Informatics

  Fall, 情報学研究科
• From Apr. 2021, To Mar. 2022

  Field Analysis

  Spring, 工学研究科
• From Apr. 2021, To Mar. 2022

  Information system Analysis

  Spring, 経営管理教育部
• From Apr. 2021, To Mar. 2022

  Bioresource and Environmental Informatics I

  Spring, 農学部
• From Apr. 2021, To Mar. 2022

  Bioresource and Environmental Informatics II

  Fall, 農学部
• From Apr. 2021, To Mar. 2022

  Biosphere Informatics

  Fall, 情報学研究科
• From Apr. 2021, To Mar. 2022

  Biosphere Informatics

  Fall, 情報学研究科

Administration

Faculty management (title, position)

• From 01 Apr. 2025, To 31 Mar. 2026

  システム運用WG委員
• From 01 Apr. 2025, To 31 Mar. 2026

  計算機小委員会委員
• From 01 Apr. 2025, To 31 Mar. 2026

  情報セキュリティWG委員
• From 01 Apr. 2025, To 31 Mar. 2026

  情報セキュリティ作業委員会委員
• From 01 Apr. 2024, To 31 Mar. 2025

  基盤整備委員会　安全衛生担当
• From 01 Apr. 2022, To 31 Mar. 2023

  計算機小委員会委員
• From 01 Apr. 2022, To 31 Mar. 2023

  情報セキュリティ作業委員会委員
• From 01 Apr. 2020, To 31 Mar. 2021

  情報セキュリティ委員会副技術責任者
• From 01 Apr. 2020, To 31 Mar. 2021

  情報セキュリティ作業委員会委員
• From 01 Apr. 2020, To 31 Mar. 2021

  情報セキュリティWG委員
• From 01 Apr. 2020, To 31 Mar. 2021

  計算機小委員会委員
• From 01 Apr. 2020, To 31 Mar. 2021

  システム運用WG委員
• From 01 Apr. 2021, To 31 Mar. 2022

  広報WG委員