Download or read book Temperature Effects on Trinity River California Adult Spring run Chinook Salmon Oncorhynchus Tshawytscha Metabolism and Survival written by Kendall Linn Ross and published by . This book was released on 2007 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water Temperature Effects on Chinook Salmon oncorhynchus Tshawytscha with Emphasis on the Sacramento River written by Gerald L. Boles and published by . This book was released on 1988 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Temperature Flow and Disturbance on Adult Spring run Chinook Salmon written by Elizabeth A. Campbell and published by . This book was released on 1992 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Survival of Captured and Relocated Adult Spring run Chinook Salmon Oncorhynchus Tshawytscha in a Sacramento River Tributary After Cessation of Migration written by Christopher M. Mosser and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The efficacy of the methodology used for capture and upstream relocation of 26 adult spring-run Chinook salmon in Butte Creek, California in 2009 was evaluated. The fish had ceased volitional upstream migration prior to reaching their summer holding habitat. The purpose of the relocation was to move fish upstream of two water diversion dams and release them in a part of the stream from which they could presumably swim to cool summer holding habitat, then spawn in the fall. Fish were netted, transported by truck, given an esophageal radio tag/temperature tag, and released. Radio tagging proved to be a useful technique for determining the survival and movement of relocated fish and temperature tags provide useful information to determine thermal exposure and time of death. Twenty-three tags (88%) were recovered, compared with a 10% tag recovery rate for an earlier study using fin clips. Most tags were recovered within 3.5 km upstream and 1 km downstream of the release site. A single tag was recovered 6 km upstream. No fish were determined to have survived to spawn. Temperature tag data indicate that most of the salmon died within 2-6 days after the relocation operation. After preventative measures have been exhausted, future relocations efforts, in any setting, should consider (1) intervention as soon as fish cease volitional migration but before they are exposed to further deleterious conditions (2) monitoring environmental conditions to choose appropriate release sites (3) evaluation of disease transmission risk, and (4) handling practices that minimize potential stress due to air immersion and thermal shock.
Download or read book Winter run Chinook Salmon in the Sacramento River California with Notes on Water Temperature Requirements at Spawning written by Daniel W. Slater and published by . This book was released on 1963 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Salmon specialists throughout the Pacific Coast indicate that the winter-run Chinook salmon is restricted to California's Sacramento River system. The characteristics and habits of the race are unique in the following respects: Fresh-water holding period, December to April; spawning period, April into July. The up-migration is concurrent with the late segments of the fall run, but the adults are distinguishable by the green condition of the gonads. The down-migration is concurrent with that of the spring-run fry, but the migrants are 2-inch or larger fingerlings. Evidence is lacking to determine whether there is an earlier down-migration of fry. The race appears to hold great promise as a stock to be introduced into areas where May-August temperatures are 42.5 degrees - 57.5 degrees F., for it supports superb angling during the fresh-water holding period. Water temperatures in May through August are seen as the factor limiting the natural extension of the range of the race.
Download or read book Ecology and Conservation of Spring run Chinook Salmon written by Elizabeth A. Campbell and published by . This book was released on 1990 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Summer Stream Temperatures Experienced by Adult Spring run Chinook Salmon Oncorhynchus Tshawytscha written by Danielle J. Cresswell and published by . This book was released on 2004 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Elevated Water Temperature on Some Aspects of the Physiological and Ecological Performance of Juvenile Chinook Salmon Oncorhynchus Ishawytscha written by Keith Richard Marine and published by . This book was released on 1997 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Relationship Between Instream Flow Adult Immigration and Spawning Habitat Availability for Fall run Chinook Salmon in the Upper San Joaquin River California Final Report written by and published by . This book was released on 1994 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Background Investigation and Review of the Effects of Elevated Water Temperature on Reproductive Performance of Adult Chinook Salmon Oncorhynchus Tshawytscha with Suggestions for Approaches to the Assessment of Temperature Induced Reproductive Impairment of Chinook Salmon Stocks in the American River California written by Keith R. Marine and published by . This book was released on 1992 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Temperature on Early life Survival of Sacramento River Fall and Winter run Chinook Salmon written by U.S. Fish and Wildlife Service. Northern Central Valley Fish and Wildlife Office and published by . This book was released on 1999 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book River Estuarine Survival and Migration of Yearling Sacramento River Chinook Salmon Oncorhynchus Tshawytscha Smolts and the Influence of Environment written by Cyril J. Michel and published by . This book was released on 2010 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling the Impact of Temperature on Chinook Salmon Survival written by Jamie Donn Anderson and published by . This book was released on 1994 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Outmigration Survival of Juvenile Spring run Chinook Salmon in Relation to Physicochemical Conditions in the San Joaquin River written by Colby Hause and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extirpation of Central Valley spring-run Chinook salmon ESU (Oncorhynchus tshawytscha) from the San Joaquin River is emblematic of salmonid declines across the Pacific Northwest. Previous telemetry studies monitoring reintroduction of threatened spring-run Chinook salmon to the San Joaquin River revealed low out-migration survival of juveniles from rehabilitated upriver habitats to the ocean. To evaluate the link between overall habitat conditions and survivorship, we combined state-of-the-art habitat mapping approaches (Fast Automated Limnological Measurements or "FLAMe") with classic acoustic telemetry technology along the 270 km emigration corridor in Spring of 2019. We used classification algorithms on FLAMe data to develop a zonation scheme for aquatic habitats along the mainstem San Joaquin River, including a portion of the Delta. Despite elevated flow conditions in 2019, outmigration survival of smolts was again comparatively low (5%). However, our habitat-based classification scheme described variation in survival of acoustic-tagged juvenile spring-run Chinook salmon better than other candidate models based on geography or distance. Two regional mortality sinks were evident along the water quality transect, revealing poor survival in areas with higher temperatures and low levels of chlorophyll-[alpha], fDOM, and turbidity. These findings illustrate an overall value in integrating simple classification frameworks to improve our understanding of habitat variation on survival dynamics of imperiled salmonid populations.
Download or read book Adult Chinook Salmon Heat Stress and Reproductive Consequences in Southcentral Alaska written by Madeline L. Lee and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis explores the causes and potential fitness consequences of heat stress on spawning Chinook salmon (Oncorhynchus tshawytscha) in an era of rapid warming in Alaska. Cook Inlet, Southcentral Alaska, accounts for nearly half of the state’s total sport, personal use, and subsistence harvest of hatchery-produced Chinook salmon. Southcentral Alaska provides an excellent opportunity to understand the potential for hatcheries to interact with climate warming and increasing habitat alteration with human development. The first objective of this thesis is to improve understanding of the factors associated with heat stress responses among and within Chinook salmon populations in relation to water temperatures. Extensive field surveys were conducted on prespawn adult Chinook salmon in two adjacent rivers in Southcentral Alaska to collect a known biomarker heat shock protein 70 (HSP70) as a non-lethal tool for thermal stress quantification. The research team for this study quantified HSP70 abundance in 39 female Chinook salmon of both hatchery and wild origin in the relatively cool, glacial-fed Crooked Creek in 2020 and in 144 wild and hatchery Chinook salmon, majority female, in the warmer groundwater-fed Ninilchik River in 2020 and 2021. We also sampled an additional 130 broodstock Chinook salmon immediately after gamete collection and extended holding in raceways and handling next to the Ninilchik River. To compare HSP70 expression across river populations, rearing conditions, and hatchery broodstock holding, we used generalized additive models that allow for non-linear responses between heat stress and temperature. I, with help of a larger research team, found that Ninilchik River Chinook salmon exhibited lower HSP70 levels at a given temperature than Crooked Creek Chinook salmon, in part challenging the notion that the relatively warm system would result in greater heat stress. We also found a hatchery effect, with wild individuals expressing higher HSP70 than those with hatchery origins from both rivers. Our most prominent and consistent result was a significant difference in HSP70 between the Ninilchik River Chinook salmon that were handled for gamete collection and those that were not, showing that the additional handling for associated hatchery programs in these rivers appears to elevate the HSP70 response without heat stress-inducing temperatures. My second goal is to quantify the impact of heat stress on aspects of reproductive performance. I was able to quantify a prespawn mortality rate in female Chinook salmon as well as calculate an average number of days that wild Chinook salmon spent on the Ninilchik River spawning grounds. I also analyzed reproductive success in the hatchery by associating Ninilchik River Chinook salmon HSP70 levels to their progeny’s egg survival to the eyed stage under controlled conditions. We found that there was no significant relationship between HSP70 concentration and egg survival to the eyed stage. Managers have consistently observed low egg survival of Ninilchik River hatchery fish, and this work suggests temperature effects and heat stress are unlikely to be the primary cause of that mortality. Applied aspects of the work suggest managers should focus efforts on limiting handling and holding stressors while collecting broodstock in the Ninilchik River rather than focusing on temperature per se. While the ultimate consequences of heat stress for the reproductive success of Chinook salmon remain unclear, taken as a whole, this work sheds light on some of the factors that may facilitate or impede adaptive responses to warming conditions by adults of this species.
Download or read book Winter Run Chinook Salmon in the Sacramento River California With Notes on Water Temperature Requirements at Spawning Classic Reprint written by Daniel W. Slater and published by Forgotten Books. This book was released on 2016-08-02 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Winter-Run Chinook Salmon in the Sacramento River, California, With Notes on Water Temperature Requirements at Spawning Since water of Battle Creek, on which Cole man Hatchery is located, is too warm for winter-run fish, those trapped at Keswick Dam (table 2) are now hauled to Spawning areas in the main Sacramento River down stream from Redding; no other suitable water is available for them. 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 Final Report written by Roger A. Barnhart and published by . This book was released on 1994 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
