Spawning Escapement of Okanogan River Blueback Salmon (Oncorhynchus Nerka), 1957 (Classic Reprint)
Title | Spawning Escapement of Okanogan River Blueback Salmon (Oncorhynchus Nerka), 1957 (Classic Reprint) PDF eBook |
Author | Donovan R. Craddock |
Publisher | Forgotten Books |
Total Pages | 20 |
Release | 2018-02-24 |
Genre | Business & Economics |
ISBN | 9780484410922 |
Excerpt from Spawning Escapement of Okanogan River Blueback Salmon (Oncorhynchus Nerka), 1957 Channel improvement work in sections B to D was responsible for reducing the flow in the experimental channel to a mere fraction of normal. Consequently, only 88 fish were Observed spawning in this channel compared to for last year. This same channel work seriously reduced the flow in the west channel causing an additional loss of spawning area. 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.
Spawning Escapement of Okanogan River Blueback Salmon (Oncorhynchus Nerka) 1957
Title | Spawning Escapement of Okanogan River Blueback Salmon (Oncorhynchus Nerka) 1957 PDF eBook |
Author | Donovan R. Craddock |
Publisher | |
Total Pages | 16 |
Release | 1958 |
Genre | Salmon |
ISBN |
Special Scientific Report
Title | Special Scientific Report PDF eBook |
Author | |
Publisher | |
Total Pages | 636 |
Release | 1960 |
Genre | Fisheries |
ISBN |
Large-scale Experimental Test of Copper Sulfate as a Control for the Florida Red Tide
Title | Large-scale Experimental Test of Copper Sulfate as a Control for the Florida Red Tide PDF eBook |
Author | George Armytage Rounsefell |
Publisher | |
Total Pages | 682 |
Release | 1958 |
Genre | Copper sulfate |
ISBN |
The first large-scale attempt at controlling the red tide was made in the autumn of 1957. About 16 square miles stretching along 32 miles of shoreline from Anclote Key to Pass-a-grille Beach, off St. Petersburg, Florida, were dusted with copper sulfate (CuSO4·5H2O) at about 20 pounds to the acre by crop-dusting planes. The copper very quickly reduced G̲y̲m̲ṉo̲ḏi̲ṉi̲u̲m̲ ḇṟe̲v̲e̲, the red tide organisms, from several million to practically none per liter relieving the area of the respiratory irritation caused by the airborne toxin of G̲. ḇṟe̲v̲e̲. In 2 out of 5 areas the organisms rose again to concentrations lethal to fish in 10 to 14 days after dusting. This method is not recommended for general control, but will give temporary relief in local situations from the airborne toxin
Sport Fishery Abstracts
Title | Sport Fishery Abstracts PDF eBook |
Author | |
Publisher | |
Total Pages | 530 |
Release | 1962 |
Genre | Fish-culture |
ISBN |
Determinants of Sockeye Salmon Abundance in the Columbia River, 1880's-1982
Title | Determinants of Sockeye Salmon Abundance in the Columbia River, 1880's-1982 PDF eBook |
Author | James W. Mullan |
Publisher | |
Total Pages | 154 |
Release | 1986 |
Genre | Sockeye salmon |
ISBN |
List of Special Scientific Reports and Special Scientific Report--fisheries of the U.S. Fish and Wildlife Service
Title | List of Special Scientific Reports and Special Scientific Report--fisheries of the U.S. Fish and Wildlife Service PDF eBook |
Author | U.S. Fish and Wildlife Service |
Publisher | |
Total Pages | 56 |
Release | 1969 |
Genre | Fisheries |
ISBN |