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An Analysis Of The Prolonged Swimming Performance Of Hatchery And River Juvenile Chinook Salmon Oncorhynchus Tshawytscha From The Lower American River California
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Book Synopsis An Analysis of the Prolonged Swimming Performance of Hatchery and River Juvenile Chinook Salmon (Oncorhynchus Tshawytscha) from the Lower American River, California by : Katherine L. Seefloth
Download or read book An Analysis of the Prolonged Swimming Performance of Hatchery and River Juvenile Chinook Salmon (Oncorhynchus Tshawytscha) from the Lower American River, California written by Katherine L. Seefloth and published by . This book was released on 2003 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Responses of Juvenile Chinook Salmon, Oncorhynchus Tshawytscha, and American Shad, Alosa Sapidissima, to Long Term Exposure to Two-vector Velocity Flows by : Robert M. Kano
Download or read book Responses of Juvenile Chinook Salmon, Oncorhynchus Tshawytscha, and American Shad, Alosa Sapidissima, to Long Term Exposure to Two-vector Velocity Flows written by Robert M. Kano and published by . This book was released on 1982 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Elevated Water Temperature on Some Aspects of the Physiological and Ecological Performance of Juvenile Chinook Salmon (Oncorhynchus Ishawytscha) by : Keith Richard Marine
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:
Book Synopsis Swimming Performance of Hatchery-reared Yearling Chinook Salmon Oncorynchus Tshawytscha Before and After Passage Through the Snake-Columbia River Hydropower System by : Derek S. Fryer
Download or read book Swimming Performance of Hatchery-reared Yearling Chinook Salmon Oncorynchus Tshawytscha Before and After Passage Through the Snake-Columbia River Hydropower System written by Derek S. Fryer and published by . This book was released on 2008 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Canadian Journal of Fisheries and Aquatic Sciences by :
Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 1991 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Straying of Late-Fall-run Chinook Salmon from the Coleman National Fish Hatchery Into the Lower American River, California by : Gina R. Lasko
Download or read book Straying of Late-Fall-run Chinook Salmon from the Coleman National Fish Hatchery Into the Lower American River, California written by Gina R. Lasko and published by . This book was released on 2012 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pacific salmon (Oncorhynchus spp.) are generally anadromous fishes that spawn in fresh water. When young salmon have grown and matured to what is called the smolt stage (ocean ready), they move into the ocean to mature and grow into adulthood. When they have reached sexual maturity, they return to fresh water to spawn and then die. Salmon typically home to their natal streams when returning to fresh water to spawn. Straying, however, is a natural behavior for a small fraction of individuals in a population, and may even have an adaptive advantage under some circumstances. Straying can also occur as a result of various factors including natural habitat disruption, modification of the watershed, or human intervention in salmonid reproduction. In the winter of 2006/2007, tens of thousands of late-fall-run Chinook salmon (Oncorhynchus tshawytscha) reared in the Coleman National Fish Hatchery, a US Fish and Wildlife Service facility on Battle Creek in the upper Sacramento River basin, were released at several downstream locations as part of a Sacramento-San Joaquin River Delta survival study. Two years later, in the winter of 2008/2009, at the end of the annual Department of Fish and Game lower American River escapement survey for fall-run Chinook salmon, a new pulse of fish was found to be spawning in the American River. These fish turned out to be stray late-fall-run Chinook salmon from the Coleman National Fish Hatchery, spawning in the American River where the fall-run Chinook salmon were completing their spawning run. Late-fall-run Chinook salmon have not been known to spawn in the American River and understanding the reason for this unusual behavior was the basis for this project. Currently the only run of Chinook salmon in the lower American River is the fall-run. The Department does not want late-fall-run Chinook salmon to establish themselves in the river because of potential disruption of fall-run Chinook salmon nest success due to an overlap in run timing, potential interbreeding, and limited available spawning habitat. This study was based on the hypothesis that salmon released in close proximity to the mouth of the American River are more likely to stray into the river during their return spawning migration than fish released farther from the river's mouth. Coded-wire tag inland return data from for the 2006 brood year of late-fall-run Chinook collected from 2007/2008 through 2010/2011 were used for this study. The tags were collected primarily from salmon found during river escapement surveys and those that returned to hatcheries in the Sacramento River watershed. The return data were analyzed using Chi-square statistical analyses to determine if there was a difference in the number of salmon straying into the American River with respect to the distance they were released from the mouth of that river, and a Spearman noncollated rank analysis was used to describe the overall relationship between release distance from the American River and percent straying into the river. Results indicated that straying did increase with proximity of release location to the mouth of the American River and with respect to downstream releases in general. No salmon released in the vicinity of the Coleman National Fish Hatchery were recovered in the lower American River. This study indicates that release location should be carefully evaluated if future downstream releases are conducted by Sacramento River watershed hatcheries.
Book Synopsis Biological Opinion [that Address the Potential Effects on Sacramento River Winter-run Chinook Salmon from the Bureau of Reclamation's Proposed Los Vaqueros Project] by :
Download or read book Biological Opinion [that Address the Potential Effects on Sacramento River Winter-run Chinook Salmon from the Bureau of Reclamation's Proposed Los Vaqueros Project] written by and published by . This book was released on 1993 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Factors Influencing the Return of Fall Chinook Salmon (Oncorhynchus Tshawytscha) to Spring Creek Hatchery by : Charles O. Junge
Download or read book Factors Influencing the Return of Fall Chinook Salmon (Oncorhynchus Tshawytscha) to Spring Creek Hatchery written by Charles O. Junge and published by . This book was released on 1963 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Changes in the Swimming Performance, Behavior and Physiology of Juvenile Chinook Salmon (Oncorhynchus Tshawytcha) After Exposure to One, Two Or Three Acute Handling Stresses by : Linda A. Sigismondi
Download or read book Changes in the Swimming Performance, Behavior and Physiology of Juvenile Chinook Salmon (Oncorhynchus Tshawytcha) After Exposure to One, Two Or Three Acute Handling Stresses written by Linda A. Sigismondi and published by . This book was released on 1985 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: The performance of an organism or organismic subsystem is the result of the interaction between the performance capacity of the system and Its environment. Environmental conditions can stress an organism and thus affect it's performance. In this study, three whole organism performances were examined: critical swimming speed, fatigue time and response time to a sudden bright light. In addition, subsystem performances were examined by measuring changes in hematocrit and plasma levels of cortisol, glucose, lactic acid, osmolarity, sodium and potassium. Performance tests were made on juvenile chinook salmon stressed 0, 1, 2 or 3 times, with 1 or 3 h between stresses, and on fish allowed to recover 1, 3, 6, 12 and 24 h after each level of stress. A stress consisted of holding the fish in a dip net in the air for 30 sec. The physiological responses and the swimming tests were conducted on salt water adapted fish while the behavioral response was measured with fish in fresh water. Plasma levels of cortisol, lactic acid, osmolarity and sodium increased cumulatively following several acute handling stresses spaced I h apart, though each parameter returned to control levels in 6-12 h. Plasma glucose rose significantly by 1 h after the first stress and remained higher than control levels at all levels of stress and through 24 h after stress. Plasma potassium increased initially following one and two stresses, dropped below control levels within 1-6 h after the last stress, and then increased above control levels for the remainder of the 24 h. Following three stresses potassium was lower than controls initially and then was similar to the levels for one and two stresses throughout the rest of the 24 h recovery period. There was a decrease in hematocrit 3-6 h after each level of stress followed by a return to control levels within 12 h of the last stress. Critical swimming speed was measured by increasing the water velocity in a flow-through swim tube and noting the velocity at which each fish stopped swimming. Critical swimming speeds after handling were highly variable and no differences were found between stressed fish and unstressed fish at any level of stress or any recovery time. Fatigue time was measured as the time a fish can maintain position in a swim tube at a given constant water velocity (60 cm/sec). Following each fatigue test, fish were killed and blood samples were obtained. Unlike unstressed fish, which all fatigued within13 min, the times to fatigue of stressed fish varied with some fish fatiguing within a few minutes and some fish swimming the 60 min period. There was a depression in fatigue times immediately following one and three handling stresses spaced 1 h apart. Immediately after two stresses and with all groups given time to recover from stress, fatigue times were similar to or higher than for unstressed fish. Plasma levels of cortisol, glucose, osmolarity and sodium were higher in swimming fish than in non-swimming controls. Plasma concentrations of cortisol, glucose and lactic acid were all highly variable in fish following fatigue and no differences were found betweeen fish handled in a dip net and unhandled fish at any level of stress or any time after stress. Plasma osmolarity and sodium levels in fatigued fish immediately after one stress were higher than levels in unstressed fatigued fish. Plasma potassium was higher in fatigued fish than in unstressed fatigued controls at several time periods after one and three stresses. The behavior test consisted of exposing groups of salmon in fresh water to a sudden bright light and measuring the time it took each fish to reach cover. Unstressed fish reached cover within 15 sec. Stressed fish took longer to reach cover, with the greatest delay immediately after stress and a gradual decrease in response time with recovery from stress. Exposure to two and three consecutive stress with 3 h between stresses increased the response times and the recovery times indicating that the effects of stress were cumulative.
Book Synopsis Swimming Performance and Muscle Function in Juvenile California Salmon by : Shana Michelle Katzman
Download or read book Swimming Performance and Muscle Function in Juvenile California Salmon written by Shana Michelle Katzman and published by . This book was released on 2001 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Determination of the Energetic Cost of Swimming from the Analysis of Growth Rate and Body Composition in Juvenile Chinook Salmon Oncorhynchus Tshawytscha by : James Roger White
Download or read book Determination of the Energetic Cost of Swimming from the Analysis of Growth Rate and Body Composition in Juvenile Chinook Salmon Oncorhynchus Tshawytscha written by James Roger White and published by . This book was released on 1978 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Residence of Juvenile Chinook Salmon, Oncorhynchus Tshawytscha, in the Smith River Estuary, California by : David Zajanc
Download or read book Residence of Juvenile Chinook Salmon, Oncorhynchus Tshawytscha, in the Smith River Estuary, California written by David Zajanc and published by . This book was released on 2003 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Transmitter Type, Tagging Method, Body Size, and Temperature on Behavior, Physiology, and Swimming Performance of Juvenile Chinook Salmon (Oncorhynchus Tshawytscha) by : Russell W. Perry
Download or read book Effects of Transmitter Type, Tagging Method, Body Size, and Temperature on Behavior, Physiology, and Swimming Performance of Juvenile Chinook Salmon (Oncorhynchus Tshawytscha) written by Russell W. Perry and published by . This book was released on 2018 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Analysis of Juvenile Chinook Salmon Outmigration Speed and Survival in Response to Habitat Features: Sacramento River from Knights Landing to Sacramento, California by : Natalie N McNair
Download or read book An Analysis of Juvenile Chinook Salmon Outmigration Speed and Survival in Response to Habitat Features: Sacramento River from Knights Landing to Sacramento, California written by Natalie N McNair and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Outmigration is an important life stage for Chinook salmon (Oncorhynchus tshawytscha) survival in the Sacramento River, and yet our understanding of their behavior and needs during this time is limited. To gain a better understanding of their survival and movement rates during outmigration, late fall run Chinook salmon smolts were tracked using acoustic telemetry techniques. Habitat features were measured and quantified throughout the study area to evaluate how Chinook salmon respond to key levee features including shade, instream woody material, and aquatic vegetation. The overall average movement speed through the entire study area was 0.77 m/s with an overall survival of 86%. Based on multiple linear regressions, vegetation was found to have the largest effect on speed with fish slowing down with increased vegetation cover. Shade, river mile, and velocity also had significant effects on movement speeds, but instream woody material was not significant. The result for woody material was surprising since it was anticipated to have a large impact on movement speeds. A positive correlation was found between faster fish movement speeds and higher survival. No evidence of diel movement patterns was found after releasing the fish. These finding can help managers create sites better designed to help Chinook salmon in the Sacramento River system. Results from this paper indicate that the type of woody material being installed might not be appropriate for this life stage of salmon.
Book Synopsis Early Life History of Fish by : E. Kamler
Download or read book Early Life History of Fish written by E. Kamler and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: Among the fishes, a remarkably wide range of biological adaptations to diverse habitats has evolved. As well as living in the conventional habitats of lakes, ponds, rivers, rock pools and the open sea, fish have solved the problems of life in deserts, in the deep sea, in the cold Antarctic, and in warm waters of high alkalinity or of low oxygen. Along with these adaptations, we find the most impressive specializations of morphology, physiology and behaviour. For example we can marvel at the high-speed swimming of the marlins, sailfish and warm-blooded tunas, air breathing in catfish and lungfish, parental care in the mouth-brooding cichlids and viviparity in many sharks and toothcarps. Moreover, fish are ofconsiderable importance to the survival ofthe human species in the form of nutritious and delicious food of numerous kinds. Rational exploitation and management of our global stocks of fishes must rely upon a detailed and precise insight of their biology. The Chapman and Hall Fish and Fisheries Series aims to present timely volumes reviewing important aspects of fish biology. Most volumes will be of interest to research workers in biology, zoology, ecology and physiology, but an additional aim is for the books to be accessible to a wide spectrum ofnon specialist readers ranging from undergraduates and postgraduates to those with an interest in industrial and commercial aspects of fish and fisheries.
Book Synopsis Recovery Plan for the Sacramento/San Joaquin Delta Native Fishes by :
Download or read book Recovery Plan for the Sacramento/San Joaquin Delta Native Fishes written by and published by . This book was released on 1996 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Microhabitat Utilization by Juvenile Chinook Salmon (Oncorhynchus Tshawytscha) in Relation to Stream Discharges in the Lower American River of California by : Terry A. Jackson
Download or read book Microhabitat Utilization by Juvenile Chinook Salmon (Oncorhynchus Tshawytscha) in Relation to Stream Discharges in the Lower American River of California written by Terry A. Jackson and published by . This book was released on 1992 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Habitats for juvenile chinook salmon (Oncorhynchus tshawytscha) were observed at a high flow during the spring of 1989 and at a low flow during the spring of 1991 in the lower American River of California. Parameters of microhabitats in eight macrohabitats were measured. Mean column water velocity and total water depth variables were used to statistically compare juvenile chinook salmon microhabitat distributions between and among macrohabitat type/reach and flow combinations. Using mean column water velocity and total water depth as independent variables, each macrohabitat type/reach appeared to be unique. Mean column water velocity seemed to be a better descriptor of juvenile chinook salmon habitat selection than was total water depth. Riffles appeared to be the preferred macrohabitats for large non-schooling chinook salmon at both flow levels. Root wads, woody debris, and submerged terrestrial vegetation were utilized extensively and provided a significant cover for schooling chinook salmon during the high flow period. Habitat utilization by chinook salmon appears to be influenced by nonhydraulic variables. Application of models in current instream flow studies need to include factors such as water temperature and aquatic insect production.
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