Acoustic-trawl Abundance Estimates , Arctic Integrated Ecosystem Research Program, 2017

These data are part of the Arctic IES component of the Arctic Integrated Ecosystem Research Program (IERP), sponsored by the North Pacific Research Board (NPRB), Collaborative Alaskan Arctic Studies Program (formerly the North Slope Borough/Shell Baseline Studies Program), Bureau of Ocean Energy Management (BOEM), and the Office of Naval Research Marine Mammals and Biology Program. To investigate the distribution, life history, and interactions of biological communities in the U.S. Continental Region of the NE Chukchi Sea a survey was conducted from August - September 2017. This dataset contains acoustic-trawl estimates of abundance for key pelagic species. Fish abundances were estimated by combining backscatter measurements and size and species composition information from trawl samples. This dataset contains fish abundances in 0.5 nautical mile transect segments, and presented here in CSV format with interval and GPS identifiers.

本数据集隶属于北极综合生态研究计划（Arctic Integrated Ecosystem Research Program, IERP）的北极IES组分，由北太平洋研究委员会（North Pacific Research Board, NPRB）、阿拉斯加北极联合研究计划（前身为北坡自治市/壳牌基线研究计划）、海洋能源管理局（Bureau of Ocean Energy Management, BOEM）以及海军研究办公室海洋哺乳动物与生物学项目资助。为探究美国东北楚科奇海大陆区域内生物群落的分布格局、生活史特征及种间相互作用，研究团队于2017年8月至9月开展了专项科考调查。本数据集包含关键中上层鱼类（pelagic species）种群丰度的声学-拖网评估结果。鱼类丰度通过结合背散射测量数据与拖网样本获取的体长组成及物种分类信息进行估算。该数据集以0.5海里为单位划分调查断面并记录对应鱼类丰度，以CSV格式存储，包含断面标识与GPS标识符。