SWFSC Marine Mammal Survey, MOPS 1989, Cruise 1268

Original provider:
NOAA Southwest Fisheries Science Center (SWFSC)

Dataset credits:
Marine Mammal and Turtle Division, Southwest Fisheries Science Center, NMFS, NOAA

Abstract:
This 1989 eastern tropical Pacific cetacean line-transect survey was the fourth 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 27,000 kilometers surveyed from late July to early December 1989. 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（NOAA）西南渔业科学中心（SWFSC）

数据集致谢：
美国国家海洋和大气管理局（NOAA）国家海洋渔业局（NMFS）西南渔业科学中心海洋哺乳动物与海龟分部

摘要：
本次1989年东热带太平洋鲸类线样带调查，是1986至1990年年度调查序列的第四次，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组织实施，搭乘NOAA科考船“大卫·斯塔尔·乔丹号”（David Starr Jordan）与“麦克阿瑟号”（McArthur）开展作业，于1989年7月下旬至12月上旬完成总调查航程约27000公里。本数据集收录了本次调查中观测到的所有鲸类的时间日期信息与地理坐标，并按物种/种群分类记录相关信息，同时包含NOAA科考船“麦克阿瑟号”（McArthur）执行线样带调查的每日及日内的起止点位数据。