SWFSC Marine Mammal Survey, MOPS 1986, Cruise 0990

Original provider: NOAA Southwest Fisheries Science Center (SWFSC) Dataset credits: Marine Mammal and Turtle Division, Southwest Fisheries Science Center, NMFS, NOAA Abstract: This 1986 eastern tropical Pacific cetacean line-transect survey was the first in a series of annual surveys (1986-1990) designed to monitor and detect trends in populations of dolphins killed in the yellowfin tuna purse seine fishery. This survey was conducted by the NOAA Southwest Fisheries Science Center aboard NOAA ships <i>David Starr Jordan</i> and <i>McArthur</i> for a combined total of approximately 30,000 kilometers surveyed from late July to early December 1986. This dataset provides the time-date and geographical coordinates, by species/stock, of all cetaceans detected during the survey, as well as the daily and intra-daily start and end points of the line-transect survey by the NOAA Ship <i>McArthur</i>.原始提供方：美国国家海洋和大气管理局西南渔业科学中心（Southwest Fisheries Science Center, SWFSC） 数据集致谢：美国国家海洋和大气管理局西南渔业科学中心海洋哺乳动物与海龟分部，美国国家海洋渔业局（NMFS） 摘要：本1986年东热带太平洋鲸类样线调查为1986-1990年度系列调查的首项项目，该系列调查旨在监测并探明黄鳍金枪鱼围网渔业中误捕海豚种群的数量变化趋势。本次调查由美国国家海洋和大气管理局西南渔业科学中心依托NOAA"戴维·斯塔尔·乔丹"号（David Starr Jordan）与NOAA"麦克阿瑟"号（McArthur）两艘科考船开展，1986年7月下旬至12月初期间累计完成约30000公里的勘测航程。本数据集收录了本次调查中所有观测到的鲸类按物种/种群分类的时间与地理坐标信息，同时包含"麦克阿瑟"号科考船执行样线调查时的每日及日内起止航点数据。