Growth and Survival of Sockeye Salmon Introduced Into Ruth Lake After Removal of Resident Fish Populations (Classic Reprint)

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Excerpt from Growth and Survival of Sockeye Salmon Introduced Into Ruth Lake After Removal of Resident Fish Populations Survival and growth were considerably greater in the treated lake. The Optimum number of smolts was produced from a fry stock of about per surface hectare in both Little Kitoi and Ruth Lakes. The average survival of fry to the smolt stage in Ruth Lake was considerably higher than survival of fry introduced into other sockeye lakes that maintained populations of predator and competing fishes. The length of time of fresh-water residence of sockeye and the percentage survival appear to be correlated negatively with density of fry, although environmental conditions such as temperature and ice cover probably exert considerable influence during certain years. 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.