Download or read book Counting Errors in Aerial Surveys of Spawning Salmon microform Some Effects on Long term Management Performance and Economic Benefit from Wood River Sockeye Salmon Oncorhynchus Nerka written by Paul Standish Higgins and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1990 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evaluates the performance of fishery management based on escapement information gained from aerial surveys of spawning sockeye salmon in Bristol Bay, Alaska, river systems.