Download or read book Juvenile Salmonid Survival Passage and Egress at McNary Dam During Tests of Temporary Spillway Weirs 2009 written by Noah S. Adams and published by . This book was released on 2010 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Juvenile Salmonid Survival Passage and Egress at McNary Dam During Tests of Temporary Spillway Weirs 2008 written by Noah S. Adams and published by . This book was released on 2009 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Markov Chain Analysis of the Movements of Juvenile Salmonids Including Sockeye Salmon in the Forebay of Mcnary Dam Washington and Oregon 2006 09 written by U.S. Department of the Interior and published by CreateSpace. This book was released on 2014-03-30 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Passage and survival data were collected at McNary Dam between 2006 and 2009. These data have provided critical information for resource managers to implement structural and operational changes designed to improve the survival of juvenile salmonids as they migrate past the dam. Much of the valuable information collected at McNary Dam was in the form of three-dimensional (hereafter referred to as 3-D) tracks of fish movements in the forebay. These data depicted the behavior of multiple species (in three dimensions) during different diel periods, spill conditions, powerhouse operations, and testing of the surface bypass structures (temporary spillway weirs; TSWs). One of the challenges in reporting 3-D results is presenting the information in a manner that allows interested parties to summarize the behavior of many fish over many different conditions across multiple years. To accomplish this, we used a Markov chain analysis to characterize fish movement patterns in the forebay of McNary Dam. The Markov chain analysis allowed us to numerically summarize the behavior of fish in the forebay.

Download or read book Juvenile Salmonid Direct Survival injury in Passage Through the Ice Harbor Dam Spillway Snake River written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Summary of Juvenile Salmonid Passage and Survival at McNary Dam Acoustic Telemetry Studies 2006 09 written by Noah S. Adams and published by . This book was released on 2011 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Multi Year Analysis of Passage and Survival at McNary Dam 2004 09 written by U.S. Department of the Interior and published by CreateSpace. This book was released on 2014-03 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: As juvenile salmon Oncorhynchus spp. and steelhead O. mykiss migrate downriver to the ocean, they are subject to both natural- and human-induced mortality. Avian and piscivorous predators contribute to total natural mortality along with other factors (Vigg and others, 1991; Collis and others, 2001). Hydroelectric projects on the Snake and Columbia Rivers also can be major sources of mortality for migrating juvenile fish. Impoundments caused by dams may indirectly contribute to salmonid mortality by slowing the migration of juvenile salmonids (Raymond 1968, 1979; Plumb and others, 2006), thereby increasing energy expenditure during migration and allowing greater opportunity for predation. Furthermore, passage through dams can be a major source of direct mortality (Mesa, 1994; Whitney and others, 1997) that is cumulative for salmonid populations that negotiate multiple dams.

Download or read book Summary of Juvenile Salmonid Passage and Survival at McNary Dam Acoustic Survival Studies 2006 09 written by Noah S. Adams and published by . This book was released on 2011 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Juvenile Salmonid Survival and Condition in Passage Through Two Flow Deflector Configurations at the Bonneville Dam Spillway written by Normandeau Associates, Inc and published by . This book was released on 2003* with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Behavioral Guidance Structure on Juvenile Salmonid Passage and Survival at Bonneville Dam in 2009 written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Pacific Northwest National Laboratory (PNNL) conducted an acoustic-telemetry study at Bonneville Dam in 2009 to evaluate the effects of a behavioral guidance structure (BGS) in the Bonneville Dam second powerhouse forebay on fish passage and survival through the second powerhouse (B2), the dam as a whole, and through the first powerhouse and spillway combined. The BGS was deployed to increase the survival of fish passing through B2 by increasing the percentage of outmigrating smolts entering the B2 Corner Collector (B2CC)--a surface flow outlet known to be a relatively benign route for downstream passage at this dam. The study relied on releases of live Juvenile Salmon Acoustic Telemetry System tagged smolts in the Columbia River and used acoustic telemetry to evaluate the approach, passage, and survival of passing juvenile salmon. Study results indicated that having turbine 11 in service is important for providing flow conditions that are comparable to those observed in pre-BGS years (2004 and 2005) and in 2008. This study supports the U.S. Army Corps of Engineers continual effort to improve conditions for juvenile anadromous fish passing through Columbia River dams.

Download or read book Assessing Survival for Mid Columbia River Released Juvenile Salmonids at McNary Dam in 2006 and 2007 written by Jill M. Hardiman and published by . This book was released on 2009 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessing Survival of Mid Columbia River Released Juvenile Salmonids at McNary Dam Washington written by Scott Evans (Electronic technician) and published by . This book was released on 2010 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessing Survival of Mid Columbia River Released Juvenile Salmonids at McNary Dam Washington 2008 09 written by Scott D. Evans and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis of Biological Reports on Juvenile Fish Passage and Survival at Bonneville Dam Through 2005 written by Richard L. Johnson and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes a review of available literature on juvenile salmonid passage at Bonneville Dam from 1939 through 2005. Studies of interest included project-wide fish-passage efficiency (FPE) studies by radio telemetry and fixed-aspect hydroacoustics, fish survival studies (direct and indirect), FGE studies, powerhouse and unit (by netting, hydroacoustics, and radio telemetry), predation studies in the forebay and tailrace, behavioral studies on forebay approach and egress, and surface-bypass studies. The FPE effort will include a review of available distribution data (horizontal, diel, and vertical) for juvenile salmon. This study does not repeat the results of previous review and synthesis studies but cites them. Where no previous review exists for a subject area, all reports were reviewed and synthesized. The report includes an annotated bibliography summarizing each of the documents reviewed and a DVD disk containing all of the original papers and reports along with an HTML index to the documents.

Download or read book Evaluation of Fish Passage Conditions for Juvenile Salmonids Using Sensor Fish at Detroit Dam Oregon written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Fish passage conditions through two spillways at Detroit Dam on the North Santiam River in Oregon were evaluated by Pacific Northwest National Laboratory for the U.S. Army Corps of Engineers (USACE), Portland District, using Sensor Fish devices. The objective of the study was to describe and compare passage exposure conditions through Spillbay 3 and Spillbay 6 at 1.5- and 3.5-ft gate openings, identifying potential fish injury regions of the routes. The study was performed in July 2009, concurrent with HI-Z balloon-tag studies by Normandeau Associates, Inc. Sensor Fish and live fish were deployed at elevations approximately 3 ft above structure at depths determined using a computational fluid dynamics model. Data collected were analyzed to estimate 1) exposure conditions, particularly exposure to severe collision and shear events by passage route sub-regions; 2) differences in passage conditions between passage routes; and 3) relationships to live-fish injury and mortality data estimates.

Download or read book Survival and Migration Behavior of Juvenile Salmonids at McNary Dam 2006 written by Noah S. Adams and published by . This book was released on 2008 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Passage Survival and Fish Condition at the Removable Spillway Weir at Lower Granite Dam Snake River December 2002 written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Survival Estimates for the Passage of Spring Migrating Juvenile Salmonids Through Snake and Columbia River Dams and Reservoirs 2005 2006 Annual Report written by Steven G. Smith and published by . This book was released on 2006 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2005, the National Marine Fisheries Service and the University of Washington completed the thirteenth year of a study to estimate survival and travel time of juvenile salmonids Oncorhynchus spp. passing through dams and reservoirs on the Snake and Columbia Rivers. All estimates were derived from detections of fish tagged with passive integrated transponder tags (PIT tags). We PIT tagged and released a total of 18,439 hatchery steelhead, 5,315 wild steelhead, and 6,964 wild yearling Chinook salmon at Lower Granite Dam in the Snake River. In addition, we utilized fish PIT tagged by other agencies at traps and hatcheries upstream from the hydropower system and at sites within the hydropower system in both the Snake and Columbia Rivers. PIT-tagged smolts were detected at interrogation facilities at Lower Granite, Little Goose, Lower Monumental, Ice Harbor, McNary, John Day, and Bonneville Dams and in the PIT-tag detector trawl operated in the Columbia River estuary. Survival estimates were calculated using a statistical model for tag-recapture data from single release groups (the ''single-release model''). Primary research objectives in 2005 were: (1) Estimate reach survival and travel time in the Snake and Columbia Rivers throughout the migration period of yearling Chinook salmon O. tshawytscha and steelhead O. mykiss. (2) Evaluate relationships between survival estimates and migration conditions. (3) Evaluate the survival estimation models under prevailing conditions. This report provides reach survival and travel time estimates for 2005 for PIT-tagged yearling Chinook salmon (hatchery and wild), hatchery sockeye salmon O. nerka, hatchery coho salmon O. kisutch, and steelhead (hatchery and wild) in the Snake and Columbia Rivers. Additional details on the methodology and statistical models used are provided in previous reports cited here.