Excerpt from Yellowstone Lake Trout Creel Censuses, 1950-51 Because of the problem of increased fishing pressure on Yellowstone Lake, the Fish and Wildlife Service, at the request of the National Park Service, initiated an extensive study to learn the effects of the ih crease, and to make recommendations, based on their findings, for a plan for a sustained yield fishery. This report is concerned with the results of the first two years of creel census studies. The study was initiated in 1950 and expanded in 1951 for collecting data for the determination of total annual fishing mortality. Data were collected in such a.manner that fishing effort and success could be analysed for relative annual and intro-seasonal changes, and for differences between.major fishing areas of the lake. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.