Excerpt from Laboratory Evaluation of the 1-on-10 Slope Ice Harbor Fishway Design During overfall flow conditions with feet of head, the fish often moved about the pool considerably before passing to the next pool. Steelhead.-the performance of steelhead under various flow conditions (table 8) was similar to that evidenced in tests with chinook salmon. The increase in head on the weir induced faster ascents when orifices were Open and slower ascents when orifices were closed. The fastest ascent occurred when only orifice flows were present, and the slowest ascents occurred during the overfall-only condition. 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.