Faculty list

Dr. Yoko Nozawa

Assistant Research Fellow
Ph.D Kyushu University, Japan, 2006
Research Fields
(1)Reproductive and recruitment ecology of reef corals (2)Population and community ecology of reef corals
Major Research Achievements (2013-2017)
  • Confirmation of the importance of refuge structure on the surface of settlement substrata in survival of reef coral recruits.
  • Quantitative estimation on temporal patterns of larval survivorship and settlement in some major reef coral taxa.
  • Detailed description on the dynamics and reproduction/ recruitment processes of a high-latitude reef coral community.
  • Finding of heat-shock effects in reef coral larvae, enhancing larval settlement rate.
  • Finding of both genetic relationship and maturity state of the allorecognition system affecting contact reactions in juvenile reef corals.
Research Interests
  • Reproduction and recruitment processes of reef corals,
  • Population /community dynamics of reef corals
    Ongoing projects
    • Effects of refuge structure on survival of reef coral recruits
    • Reproduction and recruitment processes of reef corals
    • Dynamics of a high-latitude reef coral community
      Publications (2011-2017)
      1. Yoko Nozawa*, Yu-sin Huang, Euichi Hirose, 2016, “Seasonality and lunar periodicity in sexual reproduction of the coral-killing sponge, Terpios hoshinota”, CORAL REEFS, 35(3), 1071–1081. (SCI) (IF: 3; SCI ranking: 8.7%)
      2. Yoko Nozawa*, N Isomura, H Fukami, 2015, “Influence of sperm dilution and gamete contact time on the fertilization rates of scleractinian corals”, CORAL REEFS, 34, 1199-1206. (SCI) (IF: 3; SCI ranking: 8.7%)
      3. Miriam Schutter *, Yoko Nozawa, Haruko Kurihara, 2015, “The effect of elevated CO2 and increased temperature on in vitro fertilization success and initial embryonic development of single male:female crosses of broad-cast spawning corals at a mid- and high-latitude location”, Journal of Marine Science and Engineering, 3, 216-239. (Others)
      4. Peter Edmunds*, Robert Steneck, Rebecca Albright, Robert Carpenter, Apple Pui Yi Chui, TY Fan, S Harii, H Kitano, H Kurihara, L Legendre, S Mitarai, S Muko, Y Nozawa, J Padillo-Gamino, N Price, Kazuhiko Sakai, G Suzuki, A Yarid, RD Gates, 2015, “Geographic variation in long-term trajectories of change in coral recruitment: a global-to-local perspective”, MARINE AND FRESHWATER RESEARCH, 66, 609-622. (SCI) (IF: 1.583; SCI ranking: 50%,32.7%,49.2%,48.1%)
      5. Yoko Nozawa* and Che-hung Lin, 2014, “Effects of colony size and polyp position on polyp fecundity in Acropora corals”, CORAL REEFS, 33(4), 1057-1066. (SCI) (IF: 3; SCI ranking: 8.7%)
      6. Ling Ming Tsang, Ka Hou Chu, Yoko Nozawa, Benny Kwok Kan Chan*, 2014, “Morphological and host specificity evolution in coral symbiont barnacles (Balanomorpha: Pyrgomatidae) inferred from a multi-locus phylogeny”, MOLECULAR PHYLOGENETICS AND EVOLUTION, 77, 11-22. (SCI) (IF: 3.792; SCI ranking: 27.7%,28.3%,29.1%)
      7. S Muko*, IK Shimatani, Y Nozawa, 2014, “Spatial analyses for nonoverlapping objects with size variations and their application to coral communities.”, JOURNAL OF ANIMAL ECOLOGY, 83(4), 980-990. (SCI) (IF: 4.827; SCI ranking: 12%,1.2%)
      8. Peter J Edmunds*, Yoko Nozawa, Ronald D Villanueva, 2014, “Refuges modulate coral recruitment in the Caribbean and the Pacific”, JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY, 454, 78-84. (SCI) (IF: 1.796; SCI ranking: 42.3%,52.7%)
      9. N Isomura, Y Nozawa, H Fukami*, 2014, “Distribution and reproduction of the temperate-specific morphotype of the coral Favites flexuosa in the subtropical region, Lyudao, Taiwan”, INVERTEBRATE REPRODUCTION & DEVELOPMENT, 58(3), 176-178. (SCI) (IF: 0.486; SCI ranking: 100%,85.1%)
      10. Euichi Hirose*, Yoko Nozawa, Mamiko Hirose, 2014, “First record of a photosymbiotic ascidian Lissoclinum midui (Ascidiacea: Didemnidae) from Lyudao (Green Island), Taiwan”, Marine Biodiversity Records, 7, e42. (Others)
      11. Nami Okubo*, Takuma Mezaki, Yoko Nozawa, Yoshikatsu Nakano, Yi-Ting Lien, Hironobu Fukami, David C Hayward, Eldon E Ball, 2013, “Comparative Embryology of Eleven Species of Stony Corals (Scleractinia)”, PLoS One, 8(12), e84115. (SCI) (IF: 3.057; SCI ranking: 17.5%)
      12. Nozawa Y*, Lin C-H, Chung A-C, 2013, “Bathymetric variation in recruitment and relative importance of pre- and post-settlement processes in coral assemblages at Lyudao (Green Island), Taiwan”, PLoS One, 8(11): e81474. (SCI) (IF: 3.057; SCI ranking: 17.5%)
      13. Yoko Nozawa*, 2012, “Annual variation in the timing of coral spawning in a high-latitude environment: influence of temperature”, BIOLOGICAL BULLETIN, 222(3), 192-202. (SCI) (IF: 1.522; SCI ranking: 44.2%,49%)
      14. Yoko Nozawa*, 2012, “Effective size of refugia for coral spat survival”, JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY, 413, 145-149. (SCI) (IF: 1.796; SCI ranking: 42.3%,52.7%)
      15. Yuka Irei, Yoko Nozawa, James Davis Reimer , 2011, “Distribution patterns of five zoanthid species in Okinawa Island, Japan”, ZOOLOGICAL STUDIES, 50(4), 426-433. (SCI) (IF: 0.885; SCI ranking: 56.5%)
      16. Reimer JD*, Nozawa Y, Hirose E, 2011, “Domination and disappearance of the black sponge: a quarter century after the initial Terpios outbreak in southern Japan.”, ZOOLOGICAL STUDIES, 50(3), 394. (SCI) (IF: 0.885; SCI ranking: 56.5%)
      17. James Davis Reimer*, Masami Obuchi, Yuka Irei, Takuma Fujii, Yoko Nozawa, 2011, “Shallow water brachycnemic zoanthids (Cnidaria: Hexacorallia) from Taiwan: a preliminary survey”, ZOOLOGICAL STUDIES, 50(3), 363-371. (SCI) (IF: 0.885; SCI ranking: 56.5%)
      18. Yoko Nozawa*, Mamiko Hirose, 2011, “When does the window close: the onset of allogeneic fusion 2-3 years post settlement in the scleractinian coral, Echinophyllia aspera.”, ZOOLOGICAL STUDIES, 50(3), 396. (SCI) (IF: 0.885; SCI ranking: 56.5%)
      19. Huang YA, Hsieh HJ, Huang SC, Meng PJ, Chen YS., Keshavmurthy S, Nozawa Y, Chen CA*, 2011, “Nutrient enrichment caused by marine cage culture and its influence on subtropical coral communities in turbid waters”, MARINE ECOLOGY PROGRESS SERIES, 423, 83-93. (SCI) (IF: 2.361; SCI ranking: 24.6%,38%,22.1%)
      20. Yoko Nozawa*, Nami Okubo, 2011, “Survival dynamics of reef coral larvae with special consideration of larval size and the genus Acropora”, BIOLOGICAL BULLETIN, 220, 15-22. (SCI) (IF: 1.522; SCI ranking: 44.2%,49%)
      21. Yoko Nozawa*, Kouki Tanaka, James D Reimer, 2011, “Reconsideration of surface structure of settlement plates used in coral recruitment studies.”, ZOOLOGICAL STUDIES, 50(1), 53-60. (SCI) (IF: 0.885; SCI ranking: 56.5%)
      22. Mamiko Hirose, Yoko Nozawa, Euichi Hirose*, 2010, “Genetic isolation among the morphotypes within the Photosymbiotic Didemnid Didemnum molle (Ascidiacea, Tunicata) from the Ryukyus and Taiwan.”, ZOOLOGICAL SCIENCE, 27, 959-964. (SCI) (IF: 0.814; SCI ranking: 62.1%)
      23. Yoko Nozawa*, 2010, “Survivorship of fast-growing coral spats depend less on refuge structure: the case of Acropora solitaryensis.”, Galaxea, JCRS, 12, 31-36. (J-stage)
      24. Euichi Hirose*, Yoko Nozawa, 2010, “Photosymbiotic ascidians from Kenting and Lyudao in Taiwan.”, ZOOLOGICAL STUDIES, 49, 681-687. (SCI) (IF: 0.885; SCI ranking: 56.5%)
      25. Shusuke Ono, James Davis Reimer*, Yoko Nozawa, Junzo Tsukahara, 2010, “Long-term changes of infra-littoral zooxanthellate cnidarians in the Taisho Lava Field, Sakurajima, Kagoshima, Japan.”, Galaxea, JCRS, 12, 15-22. (J-stage)
      26. Nozawa Y (2008) Micro-crevice structure enhances coral spat survivorship. Journal of Experimental Marine Biology and Ecology 367: 127-130
      27. Nozawa Y, Harrison PL (2008) Temporal patterns of larval settlement and survivorship of two broadcast-spawning acroporid corals. Marine Biology 155: 347-351
      28. Nozawa Y, Tokeshi M, Nojima S (2008) Structure and dynamics of a high-latitude scleractinian coral community in Amakusa, southwestern Japan. Marine Ecology Progress Series 358: 151-160
      29. Nozawa Y, Harrison PL (2007) Effects of elevated temperature on larval settlement and post-settlement survival in scleractinian corals, Acropora solitaryensis and Favites chinensis. Marine Biology 152:1181-1185
      30. Nozawa Y, Tokeshi M, Nojima S (2006) Reproduction and recruitment of scleractinian corals in a high-latitude coral community, Amakusa, southwestern Japan. Marine Biology 149:1047-1058
      31. Nozawa Y, Harrison PL (2005) Temporal settlement patterns of larvae of the broadcast spawning reef coral Favites chinensis and the broadcast spawning and brooding reef coral Goniastrea aspera from Okinawa, Japan. Coral Reefs 24:274-282
      32. Nozawa Y, Loya Y (2005) Genetic relationship and maturity state of the allorecognition system affect contact reactions in juvenile scleractinian corals. Marine Ecology Progress Series 286:115-123