The National Marine Mammal's California Current Ecosystem Program and Cascadia Research Collective: Aerial and small boat line transect surveys conducted in waters of Oregon, Washington, and British Columbia, Canada from 1989-07-13 to 2003-08-29 (NCEI Accession 0141100)

The National Marine Mammal Laboratory (NMML), a division of NOAA's Alaska Fisheries Science Center (Seattle, WA) and Cascadia Research Collective (Olympia, WA), conducted aerial and small boat line transects to estimate the abundance of harbor porpoises in waters of Oregon, Washington, and British Columbia, Canada. This dataset contains line transect survey data with effort (line length) and sighting data (species, group size, distance/angle) and associated covariate data.

美国国家海洋哺乳动物实验室（National Marine Mammal Laboratory, NMML，隶属于美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）阿拉斯加渔业科学中心，驻地为华盛顿州西雅图）与卡斯卡迪亚研究集体（Cascadia Research Collective，驻地为华盛顿州奥林匹亚）共同开展了航空与小型船只样线调查，以估算俄勒冈州、华盛顿州以及加拿大不列颠哥伦比亚省海域的港湾鼠海豚种群丰度。本数据集涵盖了带有调查工作量（样线长度）的样线调查数据、目击数据（物种、群大小、距离/角度）以及相关协变量数据。