PSEA-10-01 Zooplankton abundance

This dataset contains zooplankton abundance measurements for selected stations during U.S Coast Guard Cutter Polar Sea cruise PSEA1001. Samples were collected with a 0.5 m diameter, 64 micro-m mesh ring net towed vertically from just above the bottom to the surface. These were preserved in buffered formalin and counted. All large copepods and chaetognaths in each sample were identified and enumerated. Smaller zooplankton were subsampled with a Stemple pipet and identified and enumerated. Data are presented as number of organisms per square meter of water column. Because of ice, no current meter was used. Volume filtered was calculated from the net mouth open area and the depth over which the net was hauled. There was no clogging because of the very low phytoplankton abundance (Chl a less than 0.6 mg/m3). Data were collected during the Bering Sea Ecosystem Study-Bering Sea Integrated Ecosystem Research Program (BEST-BSIERP). BEST-BSIERP together are the Bering Sea project.

本数据集收录了美国海岸警卫队极地海巡航PSEA1001期间，于选定站点的浮游动物丰度测量数据。样本通过直径0.5米的64微米网孔环网垂直从海底上方至水面进行采集。采集的样本以缓冲甲醛保存并进行计数。每个样本中的大型桡足类和鳃口动物均被鉴定并计数。较小的浮游动物则通过Stemple移液管进行子样本采集，并进行鉴定和计数。数据以每平方米水柱中的生物个体数呈现。由于冰层存在，未使用流速计。过滤体积通过网口开放面积和网具吊捞深度计算得出。由于浮游植物丰度极低（叶绿素a含量低于0.6 mg/m3），未出现堵塞现象。数据收集于白令海生态系统研究-白令海综合生态系统研究计划（BEST-BSIERP）期间。BEST-BSIERP共同构成了白令海项目。