Aleutian Islands Coastal Resources Inventory and Environmental Sensitivity Maps: INVERT (Invertebrate Polygons)

This data set contains biological resource data for crabs and bivalves in the Aleutian Islands, Alaska. Vector polygons in this data set represent locations of invertebrate concentration areas. Species-specific abundance, seasonality, status, life history, and source information are stored in relational data tables (described below) designed to be used in conjunction with this spatial data laye...

本数据集收录了阿留申群岛，阿拉斯加州螃蟹和双壳类的生物资源数据。该数据集中所采用的矢量多边形代表了无脊椎动物密集区的位置。针对不同物种，数据表中存储了其丰度、季节性、状态、生命周期以及来源信息，这些数据表旨在与该空间数据层协同使用（具体描述见下文）。