Basic coral distribution data for long term monitoring at Sekisei Lagoon
Basic coral distribution data for long term monitoring at Sekisei Lagoon
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用于石星泻湖长期监测的基本珊瑚分布数据
DOI：
10.1109/oceans.2000.881796
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
S. Morita
中科院分区：
文献类型：
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作者：
M. Okamoto;T. Sato;S. Morita
Sekisei Lagoon是日本最大的珊瑚海，位于东经124度，北纬20度。它的大小是20公里的25倍。该地区被选为当地和全球环境变化的生物指标。作为第一步，使用两种技术对整个地区的活珊瑚宽度进行了调查。分别进行了50米长分潜测和长绳巡航测。1996年2月至1997年11月，在整个关成礁湖成功地进行了135次潜水调查和45次巡航调查。这个泻湖在1998年6月至8月发生了全球性的珊瑚白化。白化后，在10条巡航调查线和26个潜水调查点开始定期监测珊瑚分布。并对整个环礁湖的水质、浮游动物数量、叶绿素等进行了测量。根据白化前的巡航调查数据，建立了珊瑚覆盖数据库。此外，还从数据库中对Sekisei泻湖的珊瑚覆盖率和暂定珊瑚图进行了检查。
Sekisei Lagoon is the largest coral sea in Japan that is located at 124/spl deg/E, 24/spl deg/20'N. It is 25/spl times/20 km in size. This area was selected as a bioindicator of local and global environmental changes. As a first step, the width of live coral around the whole area was surveyed using two techniques. They were 50-m lengths minute diving survey and cruising survey for long line. 135 diving surveys and 45 cruising surveys were carried out successfully over whole Sekisei Lagoon between February 1996 and November 1997. This lagoon suffered global scale coral bleaching on June to August 1998. After the bleaching, periodical monitoring of coral distribution was started at 10 cruising survey lines and 26 diving survey sites. Also, water quality, number of zooplankton, chlorophyll, etc. were measured around the whole lagoon. From the data obtained by cruising survey before the bleaching, coral cover database was made. Also, coral coverage rate and tentative coral map at Sekisei Lagoon are examined from the database.