Download or read book Pink Salmon Oncorhynchus Gorbuscha Tagging Experiments in Southeastern Alaska 1938 42 and 1945 written by Roy E. Nakatani and published by . This book was released on 1975 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: A total of 20, 532 pink salmon (Oncorhynchus gorbuscha) were tagged and released in southeastern Alaska north of Sumner Strait during the years of 1938 to 1942 inclusive, and in 1945. The recovery of 7, 027 of these tags in the fish traps confirmed the findings of other investigators that the pink salmon stocks of the northern part of southeast Alaska are separate from those in the southern part. They also show that pink salmon enter the northern part of southeast Alaska through two paths: (1) through Icy Strait, and (2) through the lower end of Chatham Strait. No evidence was found of movement through Peril Strait from Salisbury Sound into Chatham Strait. The centers of density of each group of tags appeared to move in a consistent manner, but a smaller number of tags from each release were dispersed throughout the northern part of southeastern Alaska. Differences were noted between the movements of fish in odd and even years. Also a larger proportion of earlier tagged fish moved to recovery locations father [sic] inland. In all areas and in all years the fishing season closed about the time of the greatest abundance of fish in the fishery, therefore the later parts of the runs were not studied. Apparently the 1941 run was the largest and that in 1945 the smallest. Migration rates were studied by plotting the catch per trap as well as by the recovery of tags. The latter showed movements of 9.05 to 33.37 miles per day. Survival rates computed for thirty releases with total tag recovery periods of two or more weeks averaged 0.384. Weekly exploitation rates varied from 0.142 to 0.452 averaging 0.250. The weekly F exponential rate of fishing averaged 0.514. Recoveries of tags from seines were not used since their proportion of tags recovered was less than one-half their proportion of the catch. Recommendations are made for future tagging experiments based upon the results of this analysis.
Download or read book Pink Salmon Oncorhynchus Gorbuscha Tagging Experiments in Southeastern Alaska 1938 42 and 1945 written by Roy E. Nakatani and published by . This book was released on 1975 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pink Salmon Oncorhynchus Gorbusha i e Gorbuscha Tagging Experiments in Southeastern Alaska 1938 42 and 1945 written by Roy E. Nakatani and published by . This book was released on 1975 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pink Salmon Oncorhynchus Gorbusha written by Roy E. Nakatani and published by Forgotten Books. This book was released on 2018-02-24 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Pink Salmon, Oncorhynchus Gorbusha: Tagging Experiments in Southeastern Alaska, 1938-42 and 1945 Tagged pink salmon released in Icy Strait moved eastward and then southward in Chatham Strait to Frederick Sound. In Frederick Sound they traveled eastward and then northward. Most of the pink salmon released in lower Chatham Strait during mid July moved into Frederick Sound, and those released in early August moved north into upper Chatham Strait and south into Sumner Strait. Fish released in Frederick Sound in early August distributed themselves throughout Frederick Sound and along Stephens Passage. 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.
Download or read book Pink Salmon Oncorhynchus Aorbuscha Tagging Experiments in Southeastern Alaska 1938 42 and 1945 written by United States. National Marine Fisheries Service and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pink Salmon Oncorhynchus Gorbuscha Tagging ExperimentsinSoutheastern Alaska 1938 42 and 1945 written by R. E. Nakatani and published by . This book was released on 1975 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book Analysis of Past Alaskan Pink Salmon Tagging Experiments 1938 1945 written by Roy E. Nakatani and published by . This book was released on 1961* with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book Ichthyoplankton Composition and Plankton Volumes from Inland Coastal Waters of Southeastern Alaska April November 1972 written by Chester R. Mattson and published by . This book was released on 1978 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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