Time/area distribution and composition of the incidental kill of small cetaceans in the U.S. purse-seine fishery for tuna in the eastern tropical Pacific during 1982 and 1983

Data on the incidental kill and sex composition, by time and area, were collected by both IATTC and NMFS fishery technicians aboard United States-registered vessels. The sampling scheme used to place observers aboard vessels was described in Smith (1979). The field data form used by NMFS technicians to collect kill and sex composition data was shown in Perrin and Oliver (1982) and is the source of what is referred to as "tally data" (Oliver et al. 1983). Similar data, collected by IATTC technicians on kill and sex composition, were not available. The field data form used by both IATTC and NMFS technicians to collect data on the sex composition, reproductive condition, and length frequencies of the kill was shown in Perrin and Oliver (1982); these data are referred to as "life history data" (Oliver et al. 1983). 1984 NMFS (National Marine Fisheries Service) SWFSC (Southwest Fisheries Science Center) Library Public Domain 1930

美洲热带金枪鱼委员会（Inter-American Tropical Tuna Commission, IATTC）与国家海洋渔业局（National Marine Fisheries Service, NMFS）的渔业技术人员，在美国注册渔船上收集了按时间和区域划分的兼捕致死量与性别组成数据。向渔船派遣观察员的抽样方案已在Smith（1979）的研究中予以说明。国家海洋渔业局技术人员用于收集兼捕致死量与性别组成数据的野外数据记录表，已在Perrin与Oliver（1982）的文献中展示，该记录表亦是"计数数据"（tally data）的来源（Oliver et al. 1983）。美洲热带金枪鱼委员会技术人员收集的同类兼捕致死量与性别组成数据，目前尚未获取到。美洲热带金枪鱼委员会与国家海洋渔业局技术人员用于收集兼捕个体性别组成、繁殖状况与体长频率数据的野外数据记录表，已在Perrin与Oliver（1982）的文献中展示；此类数据被称为"生活史数据"（life history data，Oliver et al. 1983）。1984年，该数据集由国家海洋渔业局（National Marine Fisheries Service, NMFS）西南渔业科学中心（Southwest Fisheries Science Center, SWFSC）图书馆归档，属于公有领域，馆藏编号1930。