- 著者
- Frederic Sinniger Ritzelle L. Albelda Rian Prasetia Héloïse Rouzé Erlangga D. Sitorus Saki Harii
- 出版者
- The Japanese Coral Reef Society
- 雑誌
- Galaxea, Journal of Coral Reef Studies (ISSN:18830838)
- 巻号頁・発行日
- pp.G2021_S11N, (Released:2021-11-19)
- 参考文献数
- 23
- 被引用文献数
- 6
Coral reef ecosystems extend beyond the standard SCUBA diving depth. These ecosystems found between approximately 30 and over 150 m are referred to as mesophotic coral ecosystems (MCEs). Mesophotic coral communities have already been reported from Okinawa over 50 years ago. However, since then little additional knowledge has been obtained on the distribution and diversity of mesophotic corals in the region. Here, we provide an overview of the coral communities observed at selected sites in the region around Sesoko Island. Using photo-quadrats, we surveyed coral communities and specifically the contribution of the dominant coral genera to the total coral cover between different sites at depths ranging from 30 to 80 m. We found that deep coral communities around Sesoko Island hold a high potential biodiversity and need to be taken into account into coastal management plans.
- 著者
- Héloïse ROUZÉ Frederic SINNIGER Saki HARII
- 出版者
- The Japanese Coral Reef Society
- 雑誌
- Galaxea, Journal of Coral Reef Studies (ISSN:18830838)
- 巻号頁・発行日
- vol.21, no.1, pp.1-2, 2019 (Released:2019-04-11)
- 参考文献数
- 3
- 被引用文献数
- 1
- 著者
- Rian PRASETIA Frederic SINNIGER Saki HARII
- 出版者
- 日本サンゴ礁学会
- 雑誌
- Galaxea, Journal of Coral Reef Studies (ISSN:18830838)
- 巻号頁・発行日
- vol.19, no.1, pp.5-6, 2017 (Released:2017-08-07)
- 参考文献数
- 7
- 被引用文献数
- 3
- 著者
- Andrew H. Baird Alasdair J. Edwards James R. Guest Saki Harii Masayuki Hatta Liam Lachs Hanaka Mera Frederic Sinniger David Abrego Or Ben-Zvi Omri Bronstein Patrick C. Cabaitan Vivian R. Cumbo Gal Eyal Lee Eyal-Shaham Bar Feldman Joana Figueiredo Jean-François Flot Mila Grinblat Andrew Heyward Michio Hidaka Mamiko Hirose Akira Iguchi Naoko Isomura Robert A. Kinzie Seiya Kitanobo Alyson Kuba Oren Levy Yossi Loya Takuma Mezaki Amin R. Mohamed Masaya Morita Satoshi Nojima Yoko Nozawa Rian Prasetia Eneour Puill-Stephan Catalina Ramirez-Portilla Hanna Rapuano Yaeli Rosenberg Yusuke Sakai Kazuhiko Sakai Tom Shlesinger Tullia I. Terraneo Irina Yakovleva Hiromi H. Yamamoto Kiyoshi Yamazato
- 出版者
- The Japanese Coral Reef Society
- 雑誌
- Galaxea, Journal of Coral Reef Studies (ISSN:18830838)
- 巻号頁・発行日
- pp.G2021_S10O, (Released:2021-11-19)
- 参考文献数
- 27
- 被引用文献数
- 11
Sesoko Station, Okinawa, has been the site of many significant advances in coral reproductive research and it continues to be a preferred destination for both Japanese and international researchers. Consequently, there are decades of spawning observations, which we present and explore here with the aim of making it easier to predict when species spawn at Sesoko Station. The data include over 700 spawning observations from 87 species of reef-building hermatypic corals. Almost all spawning occurred between dusk and dawn, with most spawning activity concentrated in the 2 to 4 hours after sunset. Some phylogenetic patterns were evident: most Acropora species spawn on or around the 6th full moon after December 21st (the northern hemisphere winter solstice); spawning in common species of merulinids and Porites appears to be concentrated around the 7th full moon and spawning in the fungiids around the 8th and subsequent full moons. The night of peak spawning with respect to the night of the full moon varied considerably among years in common Acropora species, but was dependent on the calendar date of the full moon in May or June. Therefore, despite an extended spawning season of over three months and considerable variation in the calendar date of spawning in many species among years, the month and night of spawning are reasonably predictable for many species enhancing the value of Sesoko Station as a site for coral reproductive research.
- 著者
- 米田 しおり 山崎 敦子 渡邉 貴昭 Frederic Sinniger 波利井 佐紀 渡邊 剛
- 出版者
- 一般社団法人日本地球化学会
- 雑誌
- 日本地球化学会年会要旨集
- 巻号頁・発行日
- vol.64, 2017
<p>造礁性サンゴが生息する熱帯・亜熱帯の海で、水深30 m~150 mは浅場の海と区別してメソフォティックゾーン(中有光層:Mesophotic zone)と呼ばれ、環境変動に抗して浅場サンゴ礁とその生態系を保存するrefugiaとして近年関心を集めている。しかし、そこに生息するサンゴの環境適応に関しては未だ解明されていないことが多い。そのため、サンゴ骨格の年輪の解析からサンゴの成長、代謝、そして生育環境を分析することで、メソフォティックゾーンにおけるサンゴの成長と環境適応の履歴を探ることが本研究の目的である。各水深(4m、15m、40m)においてサンゴ骨格中に記録されたSr/Ca比から予想される水温を復元した。また、サンゴ骨格中に記録された酸素同位体比偏差の季節変動を求めた結果、骨格伸長量が小さい2月と8月に酸素同位体比偏差のピークが見られた。このことから、酸素同位体比偏差は伸長量の季節変動を示す指標となり得ることが示唆された。</p>