Download or read book The Influence of Channel Morphology and Hydrology on Spawning Populations of Steelhead Trout in South Fork Eel River Tributaries written by William Joseph Trush and published by . This book was released on 1991 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fluv Geom Geom Crit Conc Vol written by Olav Slaytnaker and published by Routledge. This book was released on 2013-08-21 with total page 563 pages. Available in PDF, EPUB and Kindle. Book excerpt: First Published in 2004.
Download or read book Fisheries Review written by and published by . This book was released on 1992 with total page 948 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Form and Process in Channel Incision of Bedrock written by Michele Ann Seidl and published by . This book was released on 1993 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biophysical Factors Driving the Distribution and Abundance of Redband steelhead Trout Oncorhynchus Mykiss Gairdneri in the South Fork John Day River Basin Oregon USA written by Luis Francisco Madriñán and published by . This book was released on 2008 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall goal of this study was to identify multiple scales of habitat use and habitat electivity by redband/steelhead trout and define the limiting factors affecting the distribution patterns of this species during summer flows. The main objective in chapter 2 was to identify the most important habitat associations that control the distribution patterns of threatened populations of redband/steelhead trout in the South Fork John Day River Basin. I found that the factors influencing the distribution patterns of trout in the basin were dependent on the thermal context and spatial extent of analysis. The inclusion of water temperature alone at large spatial scales explained most of the distribution of trout at the basin scale and that channel morphology was a very important factor at small spatial scales. The main objective in chapter 3 was to identify geophysical factors influencing the distribution pattern of threatened populations of redband/steelhead trout in the basin at multiple spatial scales. I found that the trout distribution patterns in the area could be described as a clustered distribution, with a strong selection for upstream-cold water reaches and small, well oxygenated, running water pools. My study reveals that the most influential factor at large spatial scales was water temperature and smaller scale channel morphology. Chapter 4 examines whether longitudinal-summer-stream temperature profiles in semi arid-environment streams can be used to index carrying capacities of threatened populations of redband/steelhead trout. My results show that, in the South Fork John Day Basin, stream temperature can be used as indicator of trout carrying capacity. The distribution redband/steelhead trout in summer is largely determined by the- physiologically influenced-preference that individuals have for habitats within specific temperature ranges.
Download or read book Fish Bypass Flows for Coastal Watersheds written by Peter B. Moyle and published by . This book was released on 2000 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Measurements of the Relationship Between Streamflow and King Salmon Spawning Gravel in the Main Eel and South Fork Eel Rivers written by Larry K. Puckett and published by . This book was released on 1974 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Subpopulation Structure of Steelhead Trout Oncorhynchus Mykiss in the Middle Fork Eel River as Determined by Microsatellite DNA Polymorphisms written by Anthony J. Clemento and published by . This book was released on 2006 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Salmon and Steelhead Spawning Habitat Quality in the South Fork Trinity River Basin 1997 written by Sara L. Borok and published by . This book was released on 1997 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Salmon and Steelhead Spawning Habitat Quality in the South Fork Trinity River Basin 1997 written by Sara L Borok and published by . This book was released on 1997 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Relation of Streamflow to Habitat for Anadromous Fish in the Stillaguamish River Basin Washington written by S. S. Embrey and published by . This book was released on 1987 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spawning Stocks and Juvenile Summer Habitat of Rainbow Trout and Steelhead Gulkana River Alaska written by Thomas Christopher Stark and published by . This book was released on 1999 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Gulkana River supports the northernmost population of steelhead and rainbow trout Oncorhynchus mykiss in North America. The summer habitat of Gulkana River juvenile trout (i.e., steelhead and rainbow trout) was identified and described. Analysis of geomorphological features of stream reaches (stream entrenchment, bankfull width-to-depth ratio, sinuosity, channel material, and slope) in relation to differential use of habitat by juvenile trout indicated a strong preference for type C reaches (predominately riffle/run habitat) over type E reaches (predominately slow run habitat). A comparison of micro-habitats (riffle, run, pool, slow run) within those same reaches and distribution of juvenile trout indicated a preference for riffle and run habitat. Most type C reaches in the Mainstem were sparsely populated by juveniles throughout summer. The Middle Fork was devoid of juveniles in early summer. In mid- and late summer, coinciding with the arrival of spawning chinook O. tshawytscha and sockeye salmon O. nerka, most riffle/run reaches in the Middle Fork were occupied by juvenile trout. The steelhead spawning population has declined from an estimated 200-1,000 fish two decades ago to 20-50 fish during this study (1993-1995). Rainbow trout stocks are also apparently low. Monitoring of Copper River fisheries and Gulkana spawning populations and an investigation into other steelhead spawning populations in the Copper River basin are recommended"--3.
Download or read book Ecology and Distribution of Steelhead Oncorhynchus Mykiss in the Eel River California written by Samantha Heather Kannry and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Run-timing in salmonids is a prime example to study adaptive complexity in an iconic, culturally and economically important species. The Eel River in Northwestern California represents the southernmost extant population of summer-run steelhead in North America and is at the near-limit of the species’ thermal tolerance. It therefore presents an ideal location to examine the genetic basis for run-timing variations. Here we examine a number of issues related to steelhead conservation: 1) the extent to which upstream passage is blocked by ostensible physical barriers to dispersal; 2) spawning and rearing distribution of the two run-timings; 3) distribution of resident and anadromous genotypes; and 4) genetic diversity in a population of resident trout isolated above an impassable dam for nearly a century. Using Rapture (RAD Capture), we called genotypes at the region diagnostic for run-timing (GREB1L) and the region strongly associated with residency/anadromy in steelhead (OMY5). Remarkably, we concluded steelhead are passing a waterfall that has been managed as a complete barrier to anadromy. We also observed distinct spatial segregation between winter and summer-run steelhead in both the Middle Fork Eel and Van Duzen Rivers. Finally, we found evidence that prior to dam construction, summer-run steelhead inhabited the upper mainstem Eel, and that both life-history and overall genetic diversity are currently maintained in the resident trout population. Resident trout above the dam are well-suited to re-colonize the upper watershed if upstream passage were to be restored through the upcoming FERC re-licensing process.
Download or read book Aerial Surveys for Steelhead Trout Spawning in the Willamette River Basin written by Oregon. Fish Commission and published by . This book was released on 1966 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Steelhead Spawning Survey of the Tributaries of the Upper Trinity River and Upper Hayfork Creek Drainage 1972 written by David W. Rogers and published by . This book was released on 1973 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Habitat Specificity of Wild Juvenile 1 Steelhead Within South Fork Trinity River Tributaries During Low Summer Flows written by Steven H. Kramer and published by . This book was released on 1993 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Steelhead Spawning Survey of the Tributaries of the Upper Trinity River and Upper Hayfork Creek Drainages 1973 written by Edward E. Miller and published by . This book was released on 1974 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
