Fujimura Hiroyuki

写真a

Title

Professor

Researcher Number(JSPS Kakenhi)

20398308

Current Affiliation Organization 【 display / non-display

  • Duty   University of the Ryukyus   Faculty of Science   Chemistry, Biology and Marine Science   Professor  

External Career 【 display / non-display

  • 2004.10
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    2006.03

    University of the Ryukyus, Faculty of Science, Postdoctoral fellow  

  • 2006.07
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    2009.06

    University of the Ryukyus, Faculty of Science, Department of Chemistry, Biology, and Marine Science, Analytical and Inorganic Chemistry, Assistant Research  

  • 2009.07
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    2020.06

    University of the Ryukyus, Faculty of Science, Department of Chemistry, Biology, and Marine Science, Analytical and Inorganic Chemistry, Associate Professor  

  • 2020.07
     
     

    University of the Ryukyus, Faculty of Science, Department of Chemistry, Biology, and Marine Science, Analytical and Inorganic Chemistry, Associate Professor  

Affiliated academic organizations 【 display / non-display

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    The Japanese-French Oceanographic Society 

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    The Japan Society for Analytical Chemistry 

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    The Geochemical Society of Japan 

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    Japanese Coral Reef Society 

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    International Society for Reef Studies 

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Research Interests 【 display / non-display

  • Biogeochemistry

  • Carbonate Chemistry

  • calcification

  • carbonate

  • antioxidative enzyme

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Research Areas 【 display / non-display

  • Environmental Science/Agriculture Science / Environmental dynamic analysis

  • Nanotechnology/Materials / Analytical chemistry

  • Nanotechnology/Materials / Green sustainable chemistry and environmental chemistry

Research Theme 【 display / non-display

  • Vertical profiles of carbonate system and ocean acidification in east chaina sea

  • Antioxidase activity of coral under heat stress condition

  • Chemical pollutants in costal area and the effects on coral

  • Carbon metabolisms of photosynthesis and calcification in coral reef

Published Papers 【 display / non-display

  • Correction: The Effect of Co-Culture of Two Coral Species on Their Bacterial Composition Under Captive Environments.

    Ide K, Nakano Y, Ito M, Nishikawa Y, Fujimura H, Takeyama H

    Marine biotechnology (New York, N.Y.) ( Marine Biotechnology )    2022.10 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

  • Long-term trends and seasonal variations in environmental conditions in Sesoko Island, Okinawa, Japan

    Singh Tanya, Sinniger Frederic, Nakano Yoshikatsu, Nakamura Shigeo, Kadena Shouhei, Jinza Mori, Fujimura Hiroyuki, Harii Saki

    Galaxea, Journal of Coral Reef Studies ( 日本サンゴ礁学会 )  24 ( 1 ) 121 - 133   2022.01 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

     View Summary

    <p>Knowledge of environmental factors is crucial in understanding biological and ecological processes. Yet information on the environment around Sesoko Island, Okinawa, Japan, one of the main locations for coral reef research in Japan, remains scarce. Data of air and sea surface temperature (SST), wind velocity, wave height, and frequency of typhoons have been manually recorded at Sesoko Station, Tropical Biosphere Research Station, the University of the Ryukyus from September 1990 to November 2021. Here we describe the seasonal and long-term trends in these environmental variables at Sesoko Island. Some of the key findings were that the air temperature and SST fluctuated by ~9-12°C throughout the year. A rise in air temperature and SST between 1990 and 2021 was observed in the winter and autumn season, respectively. The Degree Heating Week (DHW) based on the in-situ data reflected the bleaching observations around Sesoko Station. The DHW exceeded the critical bleaching level of 8°C-week in 1998 and the significant bleaching level of 4°C-week in 2001, 2016, and 2017. Weak southerly winds were dominant in summers, while stronger northeasterly winds were dominant in winters. The frequency of winds between 3.4 to 7.9 m/s and northeastern winds have increased through time. Typhoons generally occur between May and October, and the frequency of typhoons has not increased over the past 30 years. Wave heights never exceeded 0.5 m and were highest between July and September. These findings will provide a reliable baseline of the environment at Sesoko Island for further ecological studies.</p>

  • Final yield of the brown alga Cladosiphon okamuranus (Chordariaceae, Phaeophyceae) may depend on nursery quality

    Sato Y.

    Phycological Research ( Phycological Research )  69 ( 3 ) 159 - 165   2021.07 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

  • Photooxidation Products from a Marine Cadinane Sesquiterpenoid

    Kurnianda Viqqi, Fujimura Hiroyuki, Kanna Yoko, Tanaka Junichi

    Chemistry Letters ( 公益社団法人 日本化学会 )  50 ( 2 ) 220 - 222   2021 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

     View Summary

    <p>To show that artifacts can readily form during research on marine natural products, a common marine sesquiterpenoid <b>1</b> was treated with sunlight in the presence of a pigment. Another set of solutions were prepared and kept in shade under the bench for two weeks as negative controls. As a result, four oxygenated derivatives <b>2</b>–<b>5</b> were obtained. A unique structure of a highly oxidized molecule <b>5</b> was solved by X-ray crystallography.</p>

  • A metabarcoding survey for seasonal picophytoplankton composition in two coral reefs around Sesoko Island, Okinawa, Japan

    Handung Nuryadi, Thi Tra My Nguyen, Michihiro Ito, Naoko Okada, Satoshi Wakaoji, Toru Maruyama, Yoshikatsu Nakano, Hiroyuki Fujimura, Haruko Takeyama, Shoichiro Suda

    Journal of Applied Phycology ( Journal of Applied Phycology )  30 ( 6 ) 3179 - 3186   2018.12 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

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Presentations 【 display / non-display

  • Behavior of Aluminum and DOC in waters of the Gesashi mangrove estuary, Okinawa, Japan

    Kombo Mohamed, Bakari Said, Okada Koichiro, Fujimura Hiroyuki, Shinjo Ryuichi, Tokuyama Akira

    日本地球化学会年会要旨集  2005  -  2005 

    CiNii Research

SDGs 【 display / non-display

  • サンゴの白化現象解明による白化防止およびサンゴの救済