Download or read book Assessing Facilitated Passage and Spawning Migration Patterns of Razorback Suckers Xyrauchen Texanus in the San Juan River written by Matthew R. Bogaard and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the southwestern United States, decades of water diversions, construction of large impoundments, and loss of floodplain habitats have all contributed to a highly fragmented riverine landscape. River regulation, through damming, alters the magnitude and timing of discharge and temperature regimes and interrupts nutrient and sediment transport. Additionally, barriers negatively affect vital rates of riverine fish populations that rely on connected migratory routes to complete components of their life cycle, such as spawning migrations. A capture-translocation strategy has been implemented for Razorback Suckers, Xyrauchen texanus, in the San Juan River to mitigate negative effects of barriers, while precluding passage of nonnative species. We used active and passive radio telemetry to assess Razorback Sucker movements following translocation upstream of two barriers. Furthermore, we used seven years of Passive Integrated Transponder tag detection data at each barrier to test associations of Razorback Sucker occurrence and environmental parameters that may cue spawning migrations. While translocated individuals tended to return downstream of barriers within a year of passage, our results indicated that most individuals (>80%) remained upstream long enough to successfully spawn. Following translocation at each barrier, we observed upstream movements ranging from 2 to 262 km and detected distinct aggregations within the expected spawning season. Timing of putative spawning migrations had strong associations with water temperature, where the largest proportions of Razorback Suckers were first detected at barriers as mean weekly water temperature was increasing between 7.1 to 14.2 °C. Our research provided a model that managers can use to predict the timing of occurrence of migrating Razorback Suckers, serving as a tool to improve efficiency of selective passage facilities by prioritizing passage efforts during times of peak migration. While translocation provides an option of selective passage that may seasonally reconnect migratory routes for a proportion of the population and increase spawning potential, it is not clear if this will be enough to mitigate other recruitment bottlenecks, (e.g., access to predator-free habitats) necessary to recover Razorback Sucker populations.
Download or read book The Razorback Sucker Xyrauchen Texanus in the Upper Colorado River Basin 1974 76 written by Charles W. McAda and published by . This book was released on 1980 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: The razorback sucker, which has declined in abundance in the upper Colorado River primarily because of man's impact on the environment, has been recommended for listing as "threatened" in the U.S. Department of Interior's list of threatened or endangered species. During the present investigation, razorback suckers were nevertheless found in relatively large concentrations at two restricted locations -- the mouth of the Yampa River and a flooded gravel pit connected to the Colorado River near Grand Junction, Colorado.
Download or read book Investigations of Razorback Sucker Distribution Movements and Habitats Used During Spring in the Green River Utah written by Timothy Modde and published by . This book was released on 1997 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fish Use of Old Charley Wash written by Timothy Modde and published by . This book was released on 1998 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Non native Species Interactions written by James E. Brooks and published by . This book was released on 2000 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigations of Razorback Sucker Distribution Movements and Habitats Used During Spring in the Green River Utah written by Timothy Modde and published by . This book was released on 1997 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Distribution Migratory Behavior and Habitat Use of Razorback Sucker Xyrauchen Texanus in Lake Mohave Arizona Nevada written by Gordon Mueller and published by . This book was released on 1998 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of the Razorback Sucker Xyrauchen Texanus and Colorado Squawfish Ptychocheilus Lucius Reintroduction Programs in Central Arizona Based on Surveys of Fish Population in the Salt and Verde Rivers from 1986 to 1990 written by Dean A. Hendrickson and published by . This book was released on 1993 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Post stocking Dispersal Habitat Use and Behavioral Acclimation of Juvenile Razorback Suckers Xyrauchen Texanus in Two Colorado River Reservoirs written by Gordon Mueller and published by . This book was released on 1998 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Draft Final Recovery Goals for Razorback Sucker Xyrauchen Texanus of the Colorado River Basin written by and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Survival Growth and Recruitment of Larval and Juvenile Razorback Suckers Xyrauchen Texanus Introduced Into Floodplain Depressions of the Green River Utah written by Garn J. Birchell and published by . This book was released on 2004 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Status Review of the Razorback Sucker Xyrauchen Texanus written by Kevin R. Bestgen and published by . This book was released on 1990 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Five year Augmentation Plan for Razorback Sucker in the San Juan River written by Dale W. Ryden and published by . This book was released on 1997 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Experimental Stocking Plan for Razorback Sucker in the San Juan River written by Dale W. Ryden and published by . This book was released on 1994 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Draft Final Recovery Goals for Razorback Sucker Xyrauchen Texanus of the Colorado River Basin written by U.S. Fish and Wildlife Service. Region 6, Colorado and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Survival Rate Estimation and Movement of Hatchery reared Razorback Suckers Xyrauchen Texanus in the Upper Colorado River Basin Utah and Colorado written by Koreen Zelasko and published by . This book was released on 2008 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Razorback Sucker Xyrauchen Texanus in the Upper Colorado River Basin 1974 76 written by U.S. Fish and Wildlife Service and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
