World's Best Scientists 2026 revealed!
Hajime Kayanne

Hajime Kayanne

D-Index & Metrics

Ecology and Evolution

D-Index
43
Citations
6088
World Ranking
5381
National Ranking
26

Earth Science

D-Index
40
Citations
5648
World Ranking
5871
National Ranking
159

Overview

Hajime Kayanne is a researcher affiliated with the University of Tokyo in Japan, specializing in environmental science with a focus on oceanography and ecology. Their work primarily addresses topics related to coral and marine ecosystem studies, ocean acidification effects and responses, and marine and fisheries research. The researcher has contributed extensively to the understanding of marine environments, particularly within the context of environmental changes and their impacts on marine biodiversity.

The main fields of study in which Kayanne has published include Environmental Science and Earth and Planetary Sciences. More specialized subfields of their research encompass Oceanography, Ecology, Global and Planetary Change, Bioengineering, and Earth-Surface Processes.

Among the research topics Kayanne has explored are:

  • Coral and Marine Ecosystems Studies
  • Ocean Acidification Effects and Responses
  • Marine and fisheries research
  • Marine and coastal plant biology
  • Marine Bivalve and Aquaculture Studies
  • Analytical Chemistry and Sensors
  • Coastal and Marine Management

Kayanne's recent papers demonstrate a focus on marine ecosystem monitoring and conservation challenges in Japan and surrounding regions. Notable publications include:

  • Designing a blueprint for coral reef survival, 2021, Biological Conservation
  • Trajectory to local extinction of an isolated dugong population near Okinawa Island, Japan, 2022, Scientific Reports
  • Unexpected high abundance of aragonite-forming Nanipora (Octocorallia: Helioporacea) at an acidified volcanic reef in southern Japan, 2021, Marine Biodiversity
  • Anthropogenic Anoxic History of the Tuvalu Atoll Recorded as Annual Black Bands in Coral, 2020, Scientific Reports
  • Development of an automated transportable continuous system to measure the total alkalinity of seawater, 2020, Talanta

Kayanne frequently collaborates with other researchers in the marine sciences. Frequent co-authors include Shoji Yamamoto, Hiroya Yamano, Haruko Kurihara, Akihide Hemmi, and Takeshi Hara. These collaborations reflect a network of contributors active in marine ecology and environmental monitoring.

The main publication venues for Kayanne's work feature journals such as Scientific Reports, Galaxea Journal of Coral Reef Studies, Frontiers in Marine Science, Biological Conservation, and Marine Biodiversity. These platforms indicate a focus on both broad scientific communication and specialized coral reef and marine biodiversity research.

Best Publications

  • Spatial community shift from hard to soft corals in acidified water

    Shihori Inoue;Hajime Kayanne;Shoji Yamamoto;Haruko Kurihara

  • Larval survivorship, competency periods and settlement of two brooding corals, Heliopora coerulea and Pocillopora damicornis

    S. Harii;H. Kayanne;H. Takigawa;T. Hayashibara

  • Diurnal Changes in the Partial Pressure of Carbon Dioxide in Coral Reef Water

    Hajime Kayanne;Atsushi Suzuki;Hiroshi Saito

  • Atoll island vulnerability to flooding and inundation revealed by historical reconstruction: Fongafale Islet, Funafuti Atoll, Tuvalu

    Hiroya Yamano;Hiroya Yamano;Hajime Kayanne;Toru Yamaguchi;Yuji Kuwahara

  • Rapid direct determination of organic carbon and nitrogen in carbonate‐bearing sediments with a Yanaco MT‐5 CHN analyzer

    Masumi Yamamuro;Hajime Kayanne

  • Fine-scale mapping of land-derived nitrogen in coral reefs by δ15N in macroalgae

    Yu Umezawa;Toshihiro Miyajima;Masumi Yamamuro;Hajime Kayanne

  • Validation of degree heating weeks as a coral bleaching index in the northwestern Pacific

    Hajime Kayanne

  • Carbon and nitrogen stable isotopes of primary producers in coral reef ecosystems

    Masumi Yamamuro;Hajime Kayanne;Masao Minagawao

  • Designing a blueprint for coral reef survival

    Joan Kleypas;Denis Allemand;Ken Anthony;Andrew C. Baker

  • Recovery of coral populations after the 1998 bleaching on Shiraho Reef, in the southern Ryukyus, NW Pacific

    Hajime Kayanne;Saki Harii;Yoichi Ide;Fujio Akimoto

  • Evaluation of various satellite sensors for waterline extraction in a coral reef environment: Majuro Atoll, Marshall Islands

    Hiroya Yamano;Hiroya Yamano;Hiroto Shimazaki;Tsuneo Matsunaga;Albon Ishoda

  • Net uptake of atmospheric CO2 by coastal submerged aquatic vegetation.

    Tatsuki Tokoro;Shinya Hosokawa;Eiichi Miyoshi;Kazufumi Tada

  • Heavy metal contamination of coastal lagoon sediments: Fongafale Islet, Funafuti Atoll, Tuvalu.

    Masafumi Fujita;Masafumi Fujita;Yoichi Ide;Daisaku Sato;Paul S. Kench

  • Taking the Metabolic Pulse of the World's Coral Reefs

    Tyler Cyronak;Andreas J. Andersson;Chris Langdon;Rebecca Albright

  • Significance of groundwater nitrogen discharge into coral reefs at Ishigaki Island, southwest of Japan

    Y. Umezawa;T. Miyajima;H. Kayanne;I. Koike

  • Salinity records for the 1997–98 El Niño from Western Pacific corals

    Maki Morimoto;Maki Morimoto;Osamu Abe;Hajime Kayanne;Naoyuki Kurita

  • The mechanism of production enhancement in coral reef carbonate systems: model and empirical results

    Unknown

  • Seasonal and bleaching-induced changes in coral reef metabolism and CO2 flux

    Hajime Kayanne;Hiroshi Hata;Setsuko Kudo;Hiroya Yamano

  • Holocene sea-level changes and barrier reef formation on an oceanic island, Palau Islands, western Pacific

    Hajime Kayanne;Hiroya Yamano;Richard H. Randall

  • Corals mass-cultured from eggs and transplanted as juveniles to their native, remote coral reef

    Unknown

  • Larval dispersal, recruitment, and adult distribution of the brooding stony octocoral Heliopora coerulea on Ishigaki Island, southwest Japan

    S. Harii;S. Harii;H. Kayanne

  • of seagrass leaves for monitoring anthropogenic nutrient increases in coral reef ecosystems

    M. Yamamuro;H. Kayanne;H. Yamano

Frequent Co-Authors

Hiroya Yamano
Hiroya Yamano National Institute for Environmental Studies
Isao Koike
Isao Koike University of Tokyo
Tim R. McClanahan
Tim R. McClanahan Wildlife Conservation Society
Toshio Yamagata
Toshio Yamagata Japan Agency for Marine-Earth Science and Technology
Swadhin K. Behera
Swadhin K. Behera Japan Agency for Marine-Earth Science and Technology
Atsushi Suzuki
Atsushi Suzuki National Institute of Advanced Industrial Science and Technology
Kazuhisa Goto
Kazuhisa Goto University of Tokyo
Teruaki Ishii
Teruaki Ishii Shizuoka University
Kenji Satake
Kenji Satake University of Tokyo
Andrew G. Dickson
Andrew G. Dickson University of California, San Diego

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Exploring Ecology and Evolution opens doors to a range of rewarding career paths. Many students broaden their options by considering flexible online degrees in related fields. For example, a clinical psychology degree online allows you to study behavioral science and mental health—skills valued in both research and applied settings.

Some may prefer a people-centered approach, and a human services online degree can help you quickly gain the credentials needed for community outreach, counseling, or advocacy roles. The flexibility of online learning supports career changes, too.

If you’re interested in moving from teaching to another meaningful career, you might be inspired by the path from teacher to speech language pathologist. This shift combines educational experience with specialized clinical skills, addressing communication disorders in diverse populations.

Additionally, an online architecture school supports students passionate about sustainable design and environmental planning—a natural connection to Ecology studies. With so many online degree options, now is a great time to explore allied careers and interdisciplinary academic pathways.

Best Scientists Citing Hajime Kayanne

Trending Scientists

Recently Published Articles