MCR LTER: Coral Reef: Water Column: Particle sedimentation on the Forereef, Back Reef and Fringing Reef

This data package contains measurements of the sedimentation rate of particulate matter to the seafloor on the forereef, backreef and fringing reef of the north shore of Moorea, French Polynesia, during 2 to 4 seasons per year from August 2005 to January 2011. Measurements include estimates of the accumulation rate of particulate organic carbon (POC), particulate organic nitrogen (PON), and dry mass. Samples were collected with 2 different types of sediment traps. From August, 2005 to January 2008 samples were collected using plastic door matting placed in plastic trays 1 cm deep and 195.5 cm2 in area. From January, 2008 to January, 2011 samples were collected in plastic tubes 5.2 cm inside diameter and 17.5 cm high (21.26 cm2). During each sampling period 3 replicate traps were placed at random on the seafloor and retrieved approximately 24 hours later. See caveats to data interpretation in methods discussion.本数据集包含法属波利尼西亚茉莉雅岛（Moorea）北岸前礁、礁后及岸礁区域海底沉积物颗粒物沉降速率的实测数据，观测时段为2005年8月至2011年1月，每年开展2至4季采样。本次实测内容包括颗粒有机碳（particulate organic carbon, POC）、颗粒有机氮（particulate organic nitrogen, PON）以及干重的累积速率估算值。样品采集采用两种不同类型的沉积物捕集器：2005年8月至2008年1月期间，采样使用置于1厘米深、面积195.5平方厘米塑料托盘内的塑料门垫作为捕集介质；2008年1月至2011年1月期间，则采用内径5.2厘米、高度17.5厘米（面积21.26平方厘米）的塑料圆管作为捕集装置。每个采样周期内，会随机在海底放置3组平行捕集器，并于约24小时后回收。具体的数据解读注意事项详见方法学讨论部分。