LTER Georgia Coastal Ecosystems - March 2002 surface water phytoplankton productivity for 10 Georgia Coastal Ecosystems LTER sampling sites

Water samples were collected by Niskin bottle or by hand from just beneath the
surface during low tide surveys at or near 10 GCE-LTER sampling sites in March
2002. The incorporation of radiolabelled bicarbonate in response to varying
levels of illumination was measured using a photosynthetron apparatus.
Photosynthesis-irradiance (P-I) curves constructed from these measurements will
be used in conjunction with algal biomass and PAR versus depth measurements to
estimate instantaneous gross primary production in the water at each GCE
sampling site. This study was part of the GCE-LTER hydrographic monitoring
program, and will be repeated quarterly.

Overall bounding box describing the geographic region within the Georgia
Coastal Ecosystems LTER study domain represented in data set PHP-GCEM-0211a

2002年3月，研究人员在10个佐治亚海岸生态系统长期生态研究（Georgia Coastal Ecosystems Long-Term Ecological Research, GCE-LTER）采样点位及其邻近区域开展低潮期勘测，采用尼斯金采水器（Niskin bottle）或手动方式采集近表层海水样本。采用光合测定仪（photosynthetron）测定了不同光照强度下放射性标记碳酸氢盐的同化过程。基于上述测量结果构建的光合-辐照度（Photosynthesis-irradiance, P-I）曲线，将与藻类生物量、光合有效辐射（Photosynthetically Active Radiation, PAR）随深度变化的测量数据结合使用，以估算各GCE-LTER采样点位处水体的瞬时总初级生产量。本研究为GCE-LTER水文监测计划的组成部分，后续将按季度重复开展。
数据集PHP-GCEM-0211a所表征的佐治亚海岸生态系统LTER研究域内的地理区域，可通过整体边界框（bounding box）进行描述。