Coral Reef Evaluation and Monitoring Project Florida Keys 2000

The purpose of the Coral Reef Evaluation and Monitoring Project (CREMP) is to monitor the status and trends of selected reefs in the Florida Keys National Marine Sanctuary(FKNMS). CREMP assessments have been conducted annually at fixed sites since 1996 and data collected provides information on the temporal changes in benthic cover and diversity of stony corals and associated marine flora and fauna. The core field methods continue to be underwater videography and timed coral species inventories. Findings presented in this report include data from 109 stations at 37 sites sampled from 1996 through 2008 in the Florida Keys and 1999 through 2008 in the Dry Tortugas. The report describes the annual differences (between 2007 and 2008) in the percent cover of major benthic taxa (stony corals, octocorals, sponges, and macroalgae), mean coral species richness and the incidence of stony coral conditions. Additionally, it examines the long-term trends of the major benthic taxa, five coral complex, Montastraea cavernosa, Colpophyllia natans, Siderastrea siderea, and Porites astreoides) and the clionaid sponge, Cliona delitrix.珊瑚礁评估与监测项目（Coral Reef Evaluation and Monitoring Project, 缩写CREMP）的核心目标为监测佛罗里达礁岛群国家海洋保护区（Florida Keys National Marine Sanctuary, 缩写FKNMS）内选定礁群的现状与变化趋势。自1996年起，项目组便在固定监测点位每年开展CREMP评估，所采集的数据可反映石珊瑚及相关海洋动植物的底栖覆盖度与物种多样性的时间序列变化。核心野外调查方法延续采用水下摄像法与定时珊瑚物种清点法。本报告呈现的调查结果涵盖1996年至2008年佛罗里达礁岛群37个点位的109个监测站位，以及1999年至2008年德赖托图格斯群岛的采样数据。报告阐述了2007至2008年间主要底栖生物分类群（包括石珊瑚、八放珊瑚、海绵与大型藻类）的覆盖占比、珊瑚物种平均丰富度，以及石珊瑚病害发生情况的年度差异。此外，报告还分析了主要底栖生物分类群、五大珊瑚类群（含巨形脑珊瑚*Montastraea cavernosa*、扁脑珊瑚*Colpophyllia natans*、星孔珊瑚*Siderastrea siderea*以及星状微孔珊瑚*Porites astreoides*）与侵蚀穿孔海绵*Cliona delitrix*的长期变化趋势。