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Characterizing Migration Behaviour Of Adult Fraser River Sockeye Salmon Oncorhynchus Nerka During Costal And Estuarian Passage Using Acceleration Transmitters
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Book Synopsis Characterizing Migration Behaviour of Adult Fraser River Sockeye Salmon (Oncorhynchus Nerka) During Costal and Estuarian Passage Using Acceleration Transmitters by : Samantha Wilson
Download or read book Characterizing Migration Behaviour of Adult Fraser River Sockeye Salmon (Oncorhynchus Nerka) During Costal and Estuarian Passage Using Acceleration Transmitters written by Samantha Wilson and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Alternative Models of Adult Fraser River Sockeye Salmon (Oncorhynchus Nerka) Migration in Coastal Areas by : Miguel Pascual
Download or read book Evaluation of Alternative Models of Adult Fraser River Sockeye Salmon (Oncorhynchus Nerka) Migration in Coastal Areas written by Miguel Pascual and published by . This book was released on 1989 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Migratory Behavior of Adult Fraser River Sockeye by : Philip Gilhousen
Download or read book Migratory Behavior of Adult Fraser River Sockeye written by Philip Gilhousen and published by New Westminster, B.C.. This book was released on 1960 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Migration of Adult Sockeye Salmon in Puget Sound and Fraser River by : Henry O'Malley
Download or read book Migration of Adult Sockeye Salmon in Puget Sound and Fraser River written by Henry O'Malley and published by Sagwan Press. This book was released on 2018-02-08 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Book Synopsis Migration Rate and Behaviour of Adult Sockeye and Chum Salmon Through Trained and Untrained Sections of the Lower Fraser River by : Canada. Department of Fisheries and Oceans
Download or read book Migration Rate and Behaviour of Adult Sockeye and Chum Salmon Through Trained and Untrained Sections of the Lower Fraser River written by Canada. Department of Fisheries and Oceans and published by . This book was released on 1984 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proposed improvements to the lower Fraser shipping channelthrough further entrainment has raised concern that altered flowcharacteristics of the river may cause migration delays if adultsstray from the main channel and hold or become disoriented in thecalmer waters behind the training structures, or otherwise changetheir migration behaviour through this section of the river. Thepresent study describes migratory behaviour and pathways of adultsockeye and chum (O. keta) salmon ascending the lower river andtheir behavioural responses to existing training structures. Thestudy involved the use of two field techniques: hydroacousticmonitoring and location telemetry and radio-tagged fish.
Author :Canada. Department of Fisheries and Oceans. West Vancouver Laboratory Publisher :West Vancouver, B.C. : Fisheries and Oceans, Canada ISBN 13 : Total Pages :25 pages Book Rating :4.:/5 (161 download)
Book Synopsis Migration Rate and Behaviour of Adult Sockeye and Chum Salmon Through Trained and Untrained Sections of the Lower Fraser River by : Canada. Department of Fisheries and Oceans. West Vancouver Laboratory
Download or read book Migration Rate and Behaviour of Adult Sockeye and Chum Salmon Through Trained and Untrained Sections of the Lower Fraser River written by Canada. Department of Fisheries and Oceans. West Vancouver Laboratory and published by West Vancouver, B.C. : Fisheries and Oceans, Canada. This book was released on 1985 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Relating the Sockeye Salmon(Oncorhynchus Nerka) Spawning Migrating Experience with Offspring Fitness by : David A. Patterson
Download or read book Relating the Sockeye Salmon(Oncorhynchus Nerka) Spawning Migrating Experience with Offspring Fitness written by David A. Patterson and published by . This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adult Pacific salmon arrive at the Fraser River with a finite supply of energy to allocate between reproductive development and river migration, yet it is unknown if environmental conditions experienced by parents cause energetic trade-offs that ultimately affect offspring fitness. This thesis examined populations of Fraser River sockeye salmon (Oncorhynchus nerka) that differed in their mirgration distance (Weaver - 100 km, Gates - 363 km, and Early Stuart - 1086 km) to assess the hypothesis that migratory stress exerts an intergenerational effect on offspring fitness. When compared among three year classes of Early Stuart sockeye salmon, metrics for ovarian development at six locations along the migration route revealed no evidence of facultative adjustments of either egg number or egg size en route. In contrast, significant interannual variation existed for final ovary mass, egg size and egg number over a 16-year period, with reductions in ovary mass and egg size associated with years of high river discharge rate during the migration. Selection against maternal phenotypes with a high ovarian investment strategy was postulated as a mechanism to reconcile both data sets. Maternal and paternal gamete origin significantly influenced offspring survival. However, egg viability did not correlate with phenotypic variation in maternal energetic condition, osmoregulatory status, reproductive hormonal state, egg composition, stress, or moribund condition. Nevertheless, at the population level, migration severity may have impacted overall egg quality because (a) the two populations that experienced more severe migration conditions in 1999 and 2000 had the lowest overall embryo survival (Gates = 77%; Early Stuart = 81%; Weaver = 94%; - artifical fertilizations), and (b) a poor maternal condition (using pre-spawn mortality as surrogate of poor condition and adverse migration conditions) was positively correlated with low egg to fry survival in Early Stuart sockeye salmon over a 15 year period. Given that changes in egg size and the number of surviving offspring associated with parental influences are clear examples of intergenerational effects in sockeye salmon, the weight of evidence suggests that migratory stress associated with the parental spawning migration can contribute to an alteration in intergenerational gene flow and offspring size.
Book Synopsis Migratory Routes of Adult Sockeye Salmon, Oncorhynchus Nerka, in the Eastern Bering Sea and Bristol Bay (Classic Reprint) by : Richard R. Straty
Download or read book Migratory Routes of Adult Sockeye Salmon, Oncorhynchus Nerka, in the Eastern Bering Sea and Bristol Bay (Classic Reprint) written by Richard R. Straty and published by Forgotten Books. This book was released on 2017-03-29 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Migratory Routes of Adult Sockeye Salmon, Oncorhynchus Nerka, in the Eastern Bering Sea and Bristol Bay The establishment of fishing areas, the determination when fishing may be permitted, and the effect of exploiting simultaneously several stocks of sockeye salmon require knowledge of the migratory pattern of the individual stocks comprising the run to Bristol Bay during spaw ning migration. Various mark-and-recapture experiments and exploratory fishing in the eastern Bering Sea and Bristol Bay provide a picture of the migratory pattern of Bristol Bay sockeye salmon from approximately long. 17ow to the head of Bristol Bay. 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.
Book Synopsis Reconstructing the Summer Thermal History for the Lower Fraser River, 1941 to 2006, and Implications for Adult Sockeye Salmon (Oncorhynchus Nerka) Spawning Migration by : D. A. Patterson
Download or read book Reconstructing the Summer Thermal History for the Lower Fraser River, 1941 to 2006, and Implications for Adult Sockeye Salmon (Oncorhynchus Nerka) Spawning Migration written by D. A. Patterson and published by . This book was released on 2007 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :J. S. Macdonald Publisher :Burnaby, B.C. : Fisheries and Oceans Canada, Science ISBN 13 : Total Pages :117 pages Book Rating :4.:/5 (47 download)
Book Synopsis The Influence of Extreme Water Temperatures on Migrating Fraser River Sockeye Salmon (Oncorhynchus Nerka) During the 1998 Spawning Season by : J. S. Macdonald
Download or read book The Influence of Extreme Water Temperatures on Migrating Fraser River Sockeye Salmon (Oncorhynchus Nerka) During the 1998 Spawning Season written by J. S. Macdonald and published by Burnaby, B.C. : Fisheries and Oceans Canada, Science. This book was released on 2000 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Canada. Department of Fisheries and Oceans. Science Publisher :Burnaby, B.C. : Fisheries and Oceans Canada, Science ISBN 13 : Total Pages :120 pages Book Rating :4.:/5 (455 download)
Book Synopsis Mortality During the Migration of Fraser River Sockeye Salmon (Oncorhynchus Nerka) : a Study of the Effect of Ocean and River Environmental Conditions in 1997 by : Canada. Department of Fisheries and Oceans. Science
Download or read book Mortality During the Migration of Fraser River Sockeye Salmon (Oncorhynchus Nerka) : a Study of the Effect of Ocean and River Environmental Conditions in 1997 written by Canada. Department of Fisheries and Oceans. Science and published by Burnaby, B.C. : Fisheries and Oceans Canada, Science. This book was released on 2000 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Migration Rates and Behaviour of Adult Sockeye and Chum Salmon Through Trained and Untrained Sections of the Lower Fraser River by : G. E. Rosberg
Download or read book Migration Rates and Behaviour of Adult Sockeye and Chum Salmon Through Trained and Untrained Sections of the Lower Fraser River written by G. E. Rosberg and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Migration of Adult Sockeye Salmon in Puget Sound and Fraser River... - Primary Source Edition by : Henry O'Malley
Download or read book Migration of Adult Sockeye Salmon in Puget Sound and Fraser River... - Primary Source Edition written by Henry O'Malley and published by Nabu Press. This book was released on 2013-10 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: ++++ Migration Of Adult Sockeye Salmon In Puget Sound And Fraser River; Issue 873 Of Bureau Of Fisheries Document; Document (United States. Bureau Of Fisheries); United States Bureau Of Fisheries Henry O'Malley, Willis H. Rich Govt. Print. Off., 1919 Nature; Fish; Fishes; Nature / Fish; Sockeye salmon
Book Synopsis Summary of Fraser River Sockeye Salmon (Oncorhynchus Nerka) Ecology to Inform Pathogen Transfer Risk Assessments in the Discovery Islands, BC by : S. C. H Grant
Download or read book Summary of Fraser River Sockeye Salmon (Oncorhynchus Nerka) Ecology to Inform Pathogen Transfer Risk Assessments in the Discovery Islands, BC written by S. C. H Grant and published by . This book was released on 2018 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Canada. Department of Fisheries and Oceans Publisher :Nanaimo, B.C. : Fisheries and Oceans, Canada ISBN 13 : Total Pages :75 pages Book Rating :4.:/5 (236 download)
Book Synopsis Effects of the Fishery and of Obstacles to Migration on the Abundance of Fraser River Sockeye Salmon (Oncorhynchus Nerka) by : Canada. Department of Fisheries and Oceans
Download or read book Effects of the Fishery and of Obstacles to Migration on the Abundance of Fraser River Sockeye Salmon (Oncorhynchus Nerka) written by Canada. Department of Fisheries and Oceans and published by Nanaimo, B.C. : Fisheries and Oceans, Canada. This book was released on 1987 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Role of Life History and the Environment in Population Dynamics of Sockeye Salmon (Oncorhynchus Nerka) by : Douglas Clifford James Braun
Download or read book The Role of Life History and the Environment in Population Dynamics of Sockeye Salmon (Oncorhynchus Nerka) written by Douglas Clifford James Braun and published by . This book was released on 2012 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Processes linking the environment and life histories are central to our understanding of population dynamics. This thesis combines life history theory and environmental variation to explain recruitment dynamics among populations in Fraser River sockeye salmon (Oncorhynchus nerka). I first explore relationships between spawning stream characteristics and spawning densities and show that streams with more cover have higher spawning densities. Next, I use a 21-year time series for three of these populations to explore hypotheses about how maternal life history traits and migration conditions, experienced during upstream migrations to their spawning grounds, influence reproductive investment. Maternal body size is strongly linked to total reproductive investment and both egg mass and fecundity; however, migration difficulty only influences egg mass and not fecundity. Using the same dataset, I show that egg mass and incubation temperatures influence juvenile fitness-related traits including length, mass and emergence timing. The main finding from these analyses, that warmer incubation temperatures result in lighter juveniles that emerge earlier, led to hypotheses about how incubation temperature might select for egg size among populations. I tested these hypotheses by comparing 16 populations and confirmed the prediction that in streams with warmer water, fish would produce heavier eggs. I then asked if these same maternal traits and environmental conditions would relate to adult recruitment dynamics. Populations spawning in streams with deeper water had higher maximum population growth rates and less variable recruitment. In addition, populations in streams with larger gravel exhibited stronger density-dependence. Finally, I develop a novel framework for evaluating how habitat data, combined with the cost of collecting such information, can be used in developing cost-effective surveys. I demonstrate this general framework with a simple example using the relationships between stream characteristics and sockeye densities, considering the costs and effectiveness of stream variables. Overall, this demonstration of the joint role of maternal traits and environmental conditions in recruitment dynamics supports the potential use of such variables as indicators of population dynamics in the absence of long-term demographic data. Furthermore, it supports the development of cost-effective surveys, which is important as human impacts on populations increase, and as monitoring resources decline.
Book Synopsis Migration and Survival of Juvenile Spring Chinook Salmon and Sockeye Salmon Determined by a Large-scale Telemetry Array by :
Download or read book Migration and Survival of Juvenile Spring Chinook Salmon and Sockeye Salmon Determined by a Large-scale Telemetry Array written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis documents the use a large-scale acoustic telemetry array to track hatchery-reared salmon smolts during their seaward migration, presents estimates of early marine survival, and describes migration behaviour in the ocean of two species of Pacific salmon from the Columbia and Fraser River basins. In the Columbia River basin, it is hypothesized that seaward migrating Snake River spring Chinook salmon suffer from "delayed mortality" due to passage through eight hydropower dams or "differential delayed mortality" from transportation via barge around the dams. I tested these hypotheses by comparing survival of in-river migrating smolts from the Snake River basin to 1) a Yakima River population that migrated past only four dams and 2) a Snake River group that was transported around all dams. Early marine survival estimates of non-transported Snake and Yakima smolts from the mouth of the Columbia River to Vancouver Island (a 485 km, one month journey) was equal in both 2006 and 2008 (2007 estimates were not available), which contradicts the delayed mortality theory. Early marine survival for the transported groups was slightly higher than for the in-river migrants, again contradicting the differential delayed mortality theory. These measurements form the first direct experimental test of key theories concerning juvenile fish survival in the coastal ocean. Cultus Lake sockeye salmon are a genetically unique population from the Fraser River basin and are now endangered due to the very low return of adults in recent years. Mean survivorship of smolts (2004-7) from release to the northern Strait of Georgia ranged from 10-50%, while survivorship to the final sub-array in Queen Charlotte Strait ranged from 7-28%. Cultus Lake smolts displayed four migratory behaviours: northward migration to enter the Pacific Ocean via Queen Charlotte Strait; westward migration through the Strait of Juan de Fuca; migration into Howe Sound before continued the migration north; and migra.
