PIROP Northwest Atlantic 1965-1992

Original provider: Canadian Wildlife Service Dataset credits: Falk Huettmann & John W. Chardine, Canadian Wildlife Service Abstract: The PIROP (Programme Intégré de recherches sur les oiseaux pélagiques) data set, Atlantic subset, consists of geo-referenced vessel-based surveys to monitor pelagic seabirds. Most surveys were carried out by R.G. B. Brown from 'vessels of opportunity' supplied by the Bedford Institute for Oceanography (BIO) in Dartmouth/Halifax, but many other platforms and observers were used, too. During these surveys observations other than seabirds were also recorded, e.g. Waterfowl, Waterbirds, Songbirds, Raptors, Owls, Sea Mammals, and other sightings of interest (weather, oceanography, vessel activities, bird behaviour, etc.). The data collection period covers all seasons of 1966-1992, with most surveys being conducted between (late) summers of 1975-1987. The survey protocol originally consisted of unlimited width 10min transects, but was changed appr. 1984 towards a Tasker et al. (1984) type of survey (fixed-width strip transect). However, data and results from the PIROP database need to be interpreted as relative, and not absolute, abundance.原始提供方：加拿大野生动物服务局（Canadian Wildlife Service） 数据集致谢：加拿大野生动物服务局的福克·赫特曼（Falk Huettmann）与约翰·W·查丁（John W. Chardine） 摘要：PIROP（远洋海鸟综合研究计划，法语全称：Programme Intégré de recherches sur les oiseaux pélagiques）数据集大西洋子集，由经地理坐标标注的基于船舶的远洋海鸟监测调查组成。绝大多数调查由R.G. B. 布朗利用达特茅斯/哈利法克斯的贝德福德海洋学研究所（Bedford Institute for Oceanography, BIO）提供的“偶遇船舶”开展，但同时也使用了诸多其他观测平台与观测人员。在上述调查中，除海鸟外的类群观测记录亦被留存，例如水禽、水鸟、鸣禽、猛禽、鸮类、海洋哺乳动物，以及其他值得关注的观测内容（天气、海洋学数据、船舶活动、鸟类行为等）。数据收集时段覆盖1966年至1992年的全季节，其中多数调查开展于1975年至1987年的（晚）夏季。调查方案最初采用无宽度限制的10分钟样线法，约1984年改为遵循Tasker等（1984）提出的固定宽度带状样线调查方案。不过，PIROP数据库的相关数据与结果仅可作为相对丰度进行解读，而非绝对丰度。