Peer Reviewed Journal Papers
Peer Reviewed Journal Papers
★は研究指導・指導補助をおこなった学生を主著者とする論文です
65. Okuyama J, Kishida N, Nishizawa H, Obe Y, Mogi T, Koizumi T, Noda T, Yasuda T, Kawabata Y, Yokota T, Ichikawa K, Mitsunaga Y, Arai N (2025) Gravid green turtles employ a mixed capital–income breeding strategy where food is abundant. Marine Ecology Progress Series 764: 175–188 Link
64. Samsol S, Rusli MU, Jeetvendra K, Nishizawa H, Muin H, Joseph J (2025) Hematological and blood biochemical variations, and their correlation with body condition in wild-foraging sea turtles of the Celebes Sea. Sains Malaysiana 54: 958–974 Link
63. Sato K, Watanabe S, Noda T, Koizumi T, Yoda K, Watanabe YY, Sakamoto KQ, Isokawa T, Yoshida MA, Aoki K, Takahashi A, Iwata T, Nishizawa H, Maekawa T, Kawabe R, Watanuki Y (2025) Biologging intelligent Platform (BiP): an integrated and standardized platform for sharing, visualizing, and analyzing biologging data. Movement Ecology 13: 23 Link
62. Sugimoto Y, Kondo S, Nishizawa H, Ijichi T, Yamamoto Y, Strüssmann CA, Kobayashi S (2025) High spatiotemporal diversity of sand temperatures and estimated hatchling sex ratios of green turtle in an important North Pacific rookery. Marine Ecology 46: e70004 Link
61. Wallace BP, Bandimere AN, Abreu-Grobois A, Acosta H, Akiti J, Akomedi M, Alfaro-Shigueto J, Allen CD, Angenda D, Ayissi I, Azanza Ricardo J, Barrientos-Muñoz KG, Barrios-Garrido H, Bjorndal KA, Bretón Vargas E, Broderick AC, Calderón Peña R, Carreras C, Ceriani SA, Colman L, Cortés-Gómez A, Crespo L, Cuevas E, Dah A, de Groene A, Delgado Trejo C, Demetropoulos S, Dias A, Diez C, Dos Santos NA, Dossou Bodjrenou JS, Early Capistrán MM, Eckert KL, Eizaguirre C, Ekanayake L, Escobedo Mondragón M, Esteban N, Feliciano D, Fernandes RdS, Ferreira-Airaud B, Foley A, Fonseca LG, Fossette S, Fuentes MMPB, Gaglo J, Gaos A, Gidsicki D, Guffoni B, Girard A, Girondot M, Godfrey MH, Godley BJ, de Jesus González Díaz Mirón R, Hamann M, Hancock JM, Hart CE, Hays GC, Herrera R, Hochscheid S, Hoekstra S, Huerta-Rodríguez P, Inteca G, Ishihara T, Jensen MP, Jribi IJ, Kale N, Kaska Y, Keléz S, Kelly IK, Köhnk S, Lara PL, Lasfargue M, Lauritsen AM, Le Gouvello DZM, Liusamoa AL, López M, López-Castro MC, Lopez-Mendilaharsu M, Louro CMM, Luna T, Madden CA, Mahabir D, Mancini A, Manoharakrishnan M, Marcovaldi MA, Martín Y, Martínez-Portugal RC, Mastrogiacomo A, Matilde EIOP, Mawunyo Adzagba B, Mbungu S, Miranda C, Moncada F, Morales-Mérida BA, Mortimer JA, Murakawa SKK, Nalovic MA, Nel R, Ngafack R, Nishizawa H, Ogou M, Panagopoulou A, Patricio AR, Peralta Buendía E, Phillott AD, Pilcher NJ, Polyak MMR, Prince RIT, Raynus EH, Reina RD, Rguez-Baron JM, Robbins AE, dos Santos AS, Sarti-Martínez AL, Schofield G, Seminoff JA, Serrano I, Shamblin BM, Shanker K, Stacy BA, Stahelin G, Staman MK, Stelfox M, Stewart KR, Taxonera A, Tucker AD, Turkozan O, van Dam RP, van de Geer CH, Viera S, West L, Whiting AU, Whiting SD, Wienand L, Wijntuin SR, Wildermann N, Zárate PM, Casale P, DiMatteo A, Hurley BJ, Hutchinson BJ, Maxwell SM, Posnik ZA, Rodriguez I, Mast RB (2025) Updated global conservation status and priorities for marine turtles. Endangered Species Research 56: 247–276 Link
60. ★Noguchi N, Nishizawa H, Shimizu T, Okuyama J, Kobayashi S, Tokuda K, Tanaka H, Kondo S (2025) Efficient wildlife monitoring: Deep learning-based detection and counting of green turtles in coastal areas. Ecological Informatics 86: 103009 Link
59. ★Hara K, Tabuchi S, Nishizawa H, Nishikawa K, Mitamura H (2024) Effect of seasonal changes and river structures on the behavioral patterns of the hybrid giant salamander in the Kamo River, Japan. Herpetological Conservation and Biology 19: 13–22 Link
58. Sani LMI, Jamaludin, Hadiko G, Herma E, Inoguchi E, Jensen MP, Madden CA, Nishizawa H, Maryani L, Farajallah A, Subhan B, Bengen DG, Madduppa H (2024) Unraveling fine-scale genetic structure in endangered hawksbill turtle (Eretmochelys imbricata) in Indonesia: implications for management strategies. Frontiers in Marine Science 11: 1358695 Link
57. Hamabata T, Kameda K, Hayashi R, Okuyama J, Kawazu I, Nishizawa H (2024) Latest and comprehensive mitochondrial DNA haplotype data on green and hawksbill turtles collected in their habitats in Japan. Frontiers in Marine Science 11: 1328101 Link (Data Report)
56. Ng CKY, Ishihara T, Hamabata T, Nishizawa H, Liu M, Song J-H, Li TH, Fong CL, Moon DY, Kim IH (2024) Overview of the population genetics and connectivity of sea turtles in the East Asia Region and their conservation implications. Frontiers in Marine Science 11: 1325849 Link (Mini Review)
55. ★Medo A, Ohte N, Koba K, Arai N, Mitsunaga Y, Nishizawa H, Kume M, Viputhanumas T, Kamdee K, Saengkorakot C, Ikeya K, Yamada I, Sugawara T, Manabe Y, Goto AS, Yokoyama A, Yamane H, Kajitani H, Kojima D, Nose T, Mitamura H (2024) Trophic niche partitioning of Mekong giant catfish Pangasianodon gigas in a tropical reservoir: evidence from stable isotope and fatty acid analyses. Limnology 25: 199–210 Link
54. Jang S-J, Jo K, Jang S, Nishizawa H, Kim M, Balazs G, Im J, Suk HY, Kim B-Y, Kim T (2024) Connectivity between sea turtles off Jeju Island on the Korean Peninsula, and other populations in the western Pacific. Frontiers in Marine Science 11:1281897 Link
53. ★Maeda Y, Nishizawa H, Kondo S, Ijichi T, Ichikawa K (2024) Effect of noise on sand digging and emergence activities in green turtle (Chelonia mydas) hatchlings. Journal of Experimental Marine Biology and Ecology 570: 151974 Link 解説
52. Nishizawa H, Jolis G, Joseph J, Isnain I, Muin H, Johari S (2024) Variations in body condition of green turtles (Chelonia mydas) in two nearby foraging grounds indicate their sensitivity to foraging habitats. Aquatic Conservation: Marine and Freshwater Ecosystems 34: e4038 Link
51. Joseph J, Nishizawa H, Jalimin SN, Othman R, Jaaman SA, Bali J, Zhang X (2023) Health status and genetic compositions of green turtles (Chelonia mydas) foraging in Brunei Bay. PLOS ONE 18(11): e0293979 Link
50. ★Medo A, Ohte N, Kajitani H, Nose T, Manabe Y, Sugawara T, Onishi Y, Goto AS, Koba K, Arai N, Mitsunaga Y, Kume M, Nishizawa H, Kojima D, Yokoyama A, Yamanaka T, Viputhanumas T, Mitamura H (2023) Striped catfish (Pangasianodon hypophthalmus) exploit food sources across anaerobic decomposition‑ and primary photosynthetic production‑based food chains. Scientific Reports 13: 13992 Link
49. Jolis G, Joseph J, Nishizawa H, Isnain I, Muin H (2023) Marine turtle nesting and hatching in Tun Mustapha Park, Malaysia, revealed by community-based monitoring. Herpetological Conservation and Biology 18: 275–289 Link
48. Jeethvendra K, Nishizawa H, Alin J, Muin H, Joseph J (2023) Illegal tortoiseshell harvest of hawksbill turtles (Eretmochelys imbricata) in Southeast Asia: Evidence from Baturua Reef, Semporna, Sabah, Malaysia. Journal of Sustainability Science and Management 18:54–67 Link
47. 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 (2023) 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 73: 9–22 Link
46. ★Fujita K, Nishizawa H, Okuyama J, Arita M, Takuma S, Narazaki T, Watabe A (2023) Polymorphic foraging tactics in a marine reptile: insight from horizontal movement and dive behavior analyses. Marine Ecology Progress Series 707: 115–129 Link
45. Nishizawa H, Joseph J (2022) Differences in the morphological body condition index of sea turtles between species and size classes. Journal of the Marine Biological Association of the United Kingdom 102: 479–485 Link 解説
44. ★Tabuki K, Nishizawa H, Kondo S (2022) Does photographing green turtles (Chelonia mydas) under different environmental media reduce their identification accuracy? Marine Turtle Newsletter 165: 39–42 Link
43. Kishida N, Okuyama J, Arita M, Kume N, Fujita K, Nishizawa H, Torisawa S, Mitsunaga Y (2022) A validation of abstracted dive profiles relayed via the Argos satellite system: A case study of a loggerhead turtle. Animal Biotelemetry 10: 21 Link
42. Okuyama J, Watabe A, Takuma S, Tanaka K, Shirai K, Murakami-Sugihara N, Arita M, Fujita K, Nishizawa H, Narazaki T, Yamashita Y, Kameda K (2022) Latitudinal cline in the ratio of foraging dichotomy in the North Pacific population of loggerhead turtles revealed a priority conservation area. Diversity and Distribution 28: 1568–1581 Link
41. Yokoyama A, Arai N, Mitamura H, Nishizawa H, Mitsunaga Y, Yamane H, Viputhanumas T (2021) Movements and horizontal distribution of hatchery-reared, one-year-old Mekong giant catfish Pangasianodon gigas by ultrasonic telemetry in Kaeng Krachan Reservoir, Thailand. Aquaculture Science 69: 237–244 Link
40. Mitamura H, Nishizawa H, Mitsunaga Y, Tanaka K, Takagi J, Noda T, Tsujimura H, Omi H, Sakurai R, Sato M, Arai N, Hori M (2022) Attraction of an artificial reef: A migratory demersal flounder remains in shallow water under high temperature conditions in summer. Environmental Biology of Fishes 105: 1953–1962 Link
39. Mohd Salleh S, Nishizawa H, Mohd Sah SA, Khan Chowdhury AJ, Rusli MU (2021) Sand Particle Size Influences Nest Site Selection of Green Turtles (Chelonia mydas) Differently in East and West Peninsular Malaysia. Herpetological Conservation and Biology 16: 671–680 Link
38. ★Tabuki K, Nishizawa H, Abe O, Okuyama J, Tanizaki S (2021) Utility of carapace images for long-term photographic identification of nesting green turtles. Journal of Experimental Marine Biology and Ecology 545: 151632 Link 解説
37. ★Fujishima K, Sasai T, Hibino Y, Nishizawa H (2021) Morphology, diet, and reproduction of the coastal Hydrophis sea snakes (Elapidae: Hydrophiinae) at their northern distribution limit. Zoological Science 38: 405–415 Link
36. Nishizawa H, Hashimoto Y, Rusli MU, Ichikawa K, Joseph J (2021) Sensing underground activity: Diel digging activity pattern during nest escape by sea turtle hatchlings. Animal Behaviour 177: 1–8 Link 解説
35. Kudo H, Nishizawa H, Uchida K, Sato K (2021) Boldness-exploration behavioral syndrome in wild sub-adult green sea turtles caught at Oita, Japan. Applied Animal Behaviour Science 236: 105216 Link
34. ★Medo A, Nishizawa H, Yokoyama A, Kume M, Mitsunaga Y, Arai N, Yamane H, Ikeya K, Viputhanumas T, Mitamura H (2020) Gut morphometry represents diet preference to indigestible materials in the largest freshwater fish, Mekong giant catfish (Pangasianodon gigas). Zoological Science 37: 444–449
33. Mohd Salleh S, Nishizawa H, Mohd Sah SA, Khan Chowdhury AJ (2020) Reproductive seasonality and environmental effects in green turtle (Chelonia mydas) nesting at Penang Island, Malaysia. Journal of the Marine Biological Association of the United Kingdom 100: 645–650
32. Okuyama J, Ishii H, Tanizaki S, Suzuki T, Abe O, Nishizawa H, Yano A, Tsujimura M, Ishigaki T, Ishigaki T, Kobayashi M, Yanagida H (2020) Quarter-century (1993–2018) nesting trends in the peripheral populations of three sea turtle species at Ishigakijima Island, Japan. Chelonian Conservation and Biology 19: 101–110
31. 西澤秀明・市川光太郎・浅井咲樹・荒井修亮・三田村啓理・宮本佳則・岩見哲夫 (2019) 2019年1月に北の浦（リュツォホルム湾・東南極）で採集された魚類の記録．南極資料 63: 20–26
30. Joseph J, Nishizawa H, Alin JM, Othman R, Jolis G, Isnain I, Nais J (2019) Mass sea turtle slaughter at Pulau Tiga, Malaysia: Genetic studies indicate poaching locations and its potential effects. Global Ecology and Conservation 17: e00586
29. Coelho VF, Domit C, Broadhurst MK, Prosdocimi L, Nishizawa H, Almeida FS (2018) Intra-specific variation in skull morphology of juvenile Chelonia mydas in the southwestern Atlantic Ocean. Marine Biology 165: 174
28. ★Tabata R, Nishizawa H, Hori T, Seki S, Nishikawa K, Mitamura H (2018) Electronic tag retention and survival of giant salamanders after surgical implantation. Current Herpetology 37: 133–142.
27. Hamabata T, Nishizawa H, Kawazu I, Kameda K, Kamezaki N, Hikida T (2018) Stock composition of green turtles (Chelonia mydas) foraging in the Ryukyu Archipelago differs with size class. Marine Ecology Progress Series 600: 151–163.
26. Nishizawa H, Joseph J, Chong YK, Syed Kadir SA, Isnain I, Ganyai TA, Jaaman S, Zhang X (2018) Comparison of the rookery connectivity and migratory connectivity: insight into movement and colonization of the green turtle (Chelonia mydas) in Pacific-Southeast Asia. Marine Biology 165: 77 解説
25. Tashiro F, Tabata R, Nishizawa H, Mitamura H (2018) A rare species of Uropterygius (Anguilliformes, Muraenidae) found in stomach contents of a yellow-lipped sea krait from Japan. Check List 14 (1): 163–166.
24. Mohd Salleh S, Nishizawa H, Ishihara T, Mohd Sah SA, Jalal KCA (2018) Importance of Sand Particle Size and Temperature for Nesting Success of Green Turtles in Penang Island, Malaysia. Chelonian Conservation and Biology 17: 116–122.
23. Mohd Salleh S, Nishizawa H, Mohd Sah SA, Safri MF (2018) Spatiotemporal preferences in nesting of the hawksbill turtle (Eretmochelys imbricata) in Melaka, Malaysia. Journal of the Marine Biological Association of the United Kingdom 98: 2145–2152.
22. Nishizawa H, Joseph J, Chew VY-C, Liew H-C, Chan E-H (2018) Assessing tag loss and survival probabilities in green turtles (Chelonia mydas) nesting in Malaysia. Journal of the Marine Biological Association of the United Kingdom 98: 961–972.
21. Nishizawa H, Kono Y, Arai N, Shoji J, Mitamura H (2017) Ventilatory and behavioural responses of the marbled sole Pseudopleuronectes yokohamae to progressive hypoxia. Journal of Fish Biology 90: 2363–2374.
20. ★Tanaka K, Ichikawa K, Nishizawa H, Kittiwattanawong K, Arai N, Mitamura H (2017) Differences in vocalisation patterns of dugongs between fine-scale habitats around Talibong Island, Thailand. Acoustics Australia 45: 243–251.
19. ★Tabata R, Tashiro F, Nishizawa H, Takagi J, Kidera N, Mitamura H (2017) Stomach contents of three sea kraits (Hydrophiinae: Laticauda spp.) in the Ryukyu Islands, Japan. Current Herpetology 36: 127–134.
18. Joseph J, Nishizawa H, Hassan M, Zakariah MI, Jaaman SA, Zhang X (2017) Utilization of Brunei Bay (Malaysia) as a developmental and foraging habitat for hawksbill turtle (Eretmochelys imbricata). Regional Studies in Marine Science 16: 304–307.
17. Nishizawa H, Joseph J, Chong YK (2016) Spatio-temporal patterns of mitochondrial DNA variation in hawksbill turtles (Eretmochelys imbricata) in Southeast Asia. Journal of Experimental Marine Biology and Ecology 474: 164–170.
16. Joseph J, Nishizawa H, Wahidah MA, Syed Abdullah SK, Jaaman SA, Bali J, Noorul Azliana J, Katoh M (2016) Genetic stock compositions and natal origin of green turtle (Chelonia mydas) foraging at Brunei Bay. Global Ecology and Conservation 6: 16–24.
15. 河野友香・西澤秀明・荒井修亮・三田村啓理（2016）溶存酸素量の低下に対するヒラメParalichthys olivaceusの行動変化．海洋理工学会誌 22: 39–45
14. Joseph J, Nishizawa H (2016) Genetic structure and diversity of green turtles (Chelonia mydas) from two rookeries in the South China Sea. Journal of Sustainability Science and Management. Special Issue: the International seminar on the straits of Malacca and the South China Sea. 11: 41–47
13. Hayashi R, Nishizawa H (2015) Body size distribution demonstrates flexible habitat shift of green turtle (Chelonia mydas). Global Ecology and Conservation 3: 115–120.
12. Nishizawa H, Tabata R, Hori T, Mitamura H, Arai N (2014) Feeding kinematics of freshwater turtles: what advantage do invasive species possess? Zoology 117: 315–318.
11. Nishizawa H, Narazaki T, Fukuoka T, Sato K, Hamabata T, Kinoshita M, Arai N (2014) Juvenile green turtles in the northern edge of their range: mtDNA evidence of long-distance westward dispersals in the northern Pacific Ocean. Endangered Species Research 24: 171–179.
10. Nishizawa H, Narazaki T, Fukuoka T, Sato K, Hamabata T, Kinoshita M, Arai N (2014) Genetic composition of loggerhead turtle feeding aggregations: migration patterns in the North Pacific. Endangered Species Research 24: 85–93.
9. Nishizawa H, Noda T, Yasuda T, Okuyama J, Arai N, Kobayashi M (2013) Decision tree classification of behaviors in the nesting process of green turtles (Chelonia mydas) from tri-axial acceleration data. Journal of Ethology 31: 315–322.
8. Nishizawa H, Naito Y, Suganuma H, Abe O, Okuyama J, Hirate K, Tanaka S, Inoguchi E, Narushima K, Kobayashi K, Ishii H, Tanizaki S, Kobayashi M, Goto A, Arai N (2013) Composition of green turtle feeding aggregations along the Japanese Archipelago: implications for changes in composition with current flow. Marine Biology 160: 2671–2685.
7. Nishizawa H, Asahara M, Kamezaki N (2013) Ontogenetic scaling of the humerus in sea turtles and its implications for locomotion. Zoological Science 30: 211–216.
6. Nishizawa H, Okuyama J, Abe O, Kobayashi M, Arai N (2012) Mitochondrial DNA variation in hawksbill turtles (Eretmochelys imbricata) nesting on Ishigaki Island, Japan. Marine Turtle Newsletter 132: 1–2.
5. Nishizawa H, Abe O, Okuyama J, Kobayashi M, Arai N (2011) Population genetic structure and implications for natal philopatry of nesting green turtles (Chelonia mydas) in the Yaeyama Islands, Japan. Endangered Species Research 14: 141–148.
4. Nishizawa H, Asahara M, Kamezaki N, Arai N (2010) Differences in the skull morphology between juvenile and adult green turtles: Implications for the ontogenetic diet shift. Current Herpetology 29: 85–89.
3. Nishizawa H, Okuyama J, Abe O, Kobayashi M, Yoseda K, Arai N (2010) Ontogenetic changes in the flipper-beating behavior in free-ranging versus tank-housed green turtle (Chelonia mydas) juveniles. Coastal Marine Science 34: 7–12.
2. Nishizawa H, Okuyama J, Kobayashi M, Abe O, Arai N (2010) 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. Zoological Science 27: 14–18.
1. Okuyama J, Abe O, Nishizawa H, Kobayashi M, Yoseda K, Arai N (2009) Ontogeny of the dispersal migration of green turtle (Chelonia mydas) hatchlings. Journal of Experimental Marine Biology and Ecology 379: 43–50.
7. 西澤秀明（2025）日本において淡水ガメはどう報道されてきたか？—新聞記事の計量テキスト分析から探る．御亀楽 3: 17–23
6. 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 (2024) Sea Turtles of Southeast Asia. SWOT Report 19: 22–37. Link
5. 西澤秀明（2016）アオウミガメの産卵は大仕事．バイオロギング2 ー動物たちの知られざる世界を探るー．（日本バイオロギング研究会 編）京都通信社．pp. 202–205
4. 西澤秀明（2013）日本のアオウミガメはどこから来たのか．海は百面相．（京都大学総合博物館企画展「海」実行委員会 編）京都通信社．pp. 161–163
3. 西澤秀明（2013）新刊書紹介：ウミガメの自然誌 産卵と回遊の生物学．日本水産学会誌 79: 250
2. 西澤秀明（2010）遺伝からみる日本のウミガメ類の集団構造．海洋と生物 32: 419–423
1. 西澤秀明・奥山隼一（2009）子ガメの未来は測れるか．バイオロギング ー最新科学で解明する動物生態学ー．（日本バイオロギング研究会 編）京都通信社．pp. 32–35