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Temporal And Spatial Distribution Of Endangered Juvenile Lost River And Shortnose Suckers In Relation To Environmental Variables In Upper Klamath Lake Oregon
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Book Synopsis Temporal and Spatial Distribution of Endangered Juvenile Lost River and Shortnose Suckers in Relation to Environmental Variables in Upper Klamath Lake, Oregon by : U.S. Department of the Interior
Download or read book Temporal and Spatial Distribution of Endangered Juvenile Lost River and Shortnose Suckers in Relation to Environmental Variables in Upper Klamath Lake, Oregon written by U.S. Department of the Interior and published by CreateSpace. This book was released on 2014-03-30 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lost River sucker (Deltistes luxatus) and shortnose sucker (Chasmistes brevirostris) were listed as endangered in 1988 for a variety of reasons including apparent recruitment failure. Upper Klamath Lake, Oregon, and its tributaries are considered the most critical remaining habitat for these two species. Age-0 suckers are often abundant in Upper Klamath Lake throughout the summer months, but catches decline dramatically between late August and early September each year and age-1 and older sub-adult suckers are rare. These rapid declines in catch rates and a lack of substantial recruitment into adult sucker populations in recent years suggests sucker populations experience high mortality between their first summer and first spawn. A lack of access to, or abundance of, optimal rearing habitat may exacerbate juvenile sucker mortality or restrict juvenile growth or development.
Book Synopsis Temporal and Spatial Distribution of Endangered Juvenile Lost River and Shortnose Suckers in Relation to Environmental Variables in Upper Klamath Lake, Oregon by : U.S. Department of the Interior
Download or read book Temporal and Spatial Distribution of Endangered Juvenile Lost River and Shortnose Suckers in Relation to Environmental Variables in Upper Klamath Lake, Oregon written by U.S. Department of the Interior and published by CreateSpace. This book was released on 2014-03-30 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lost River sucker (Deltistes luxatus) and shortnose sucker (Chasmistes brevirostris) were listed as endangered in 1988 for a variety of reasons including apparent recruitment failure. Upper Klamath Lake, Oregon, and its tributaries are considered the most critical remaining habitat for these two species. Age-0 suckers are often abundant in Upper Klamath Lake throughout the summer months, but catches decline dramatically between late August and early September each year. Similar declines of age-1 suckers between spring and late summer also occur annually. These rapid declines in catch rates and a lack of substantial recruitment into adult sucker populations in recent years suggests sucker populations experience high mortality between their first summer and first spawn.
Book Synopsis Temporal and Spatial Distribution of Endangered Juvenile Lost River and Shortnose Suckers in Relation to Environmental Variables in Upper Klamath Lake, Oregon by : Jared L. Bottcher
Download or read book Temporal and Spatial Distribution of Endangered Juvenile Lost River and Shortnose Suckers in Relation to Environmental Variables in Upper Klamath Lake, Oregon written by Jared L. Bottcher and published by . This book was released on 2010 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Temporal and Spatial Distribution of Endangered Juvenile Lost River and Shortnose Suckers in Relation to Environmental Variables in Upper Klamath Lake, Oregon by : Summer M. Burdick
Download or read book Temporal and Spatial Distribution of Endangered Juvenile Lost River and Shortnose Suckers in Relation to Environmental Variables in Upper Klamath Lake, Oregon written by Summer M. Burdick and published by . This book was released on 1957 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spring and Summer Spatial Distribution of Endangered Juvenile Lost River and Shortnose Suckers in Relation to Environmental Variables in Upper Klamath Lake, Oregon by : U S Department of the Interior
Download or read book Spring and Summer Spatial Distribution of Endangered Juvenile Lost River and Shortnose Suckers in Relation to Environmental Variables in Upper Klamath Lake, Oregon written by U S Department of the Interior and published by . This book was released on 2014-03-30 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lost River sucker Deltistes luxatus and shortnose sucker Chasmistes brevirostris were listed as endangered in 1988 for a variety of reasons including apparent recruitment failure. Upper Klamath Lake, Oregon, and its tributaries are considered the most critical remaining habitat for these two species. Age-0 suckers are often abundant in Upper Klamath Lake throughout the summer months, but catches decline dramatically between late August and early September each year, and age-1 and older subadult suckers are rare. These rapid declines in catch rates and a lack of substantial recruitment into adult sucker populations in recent years suggests sucker populations experience high mortality between their first summer and first spawn. A lack of optimal rearing habitat may exacerbate juvenile sucker mortality or restrict juvenile growth or development.
Book Synopsis Distribution and Condition of Larval and Juvenile Lost River and Shortnose Suckers in the Williamson River Delta Restoration Project and Upper Klamath Lake, Oregon by : U.S. Department of the Interior
Download or read book Distribution and Condition of Larval and Juvenile Lost River and Shortnose Suckers in the Williamson River Delta Restoration Project and Upper Klamath Lake, Oregon written by U.S. Department of the Interior and published by CreateSpace. This book was released on 2014-03-30 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Federally endangered Lost River sucker (Deltistes luxatus) and shortnose sucker (Chasmistes brevirostris) were once abundant throughout their range but populations have declined. They were extirpated from several lakes in the 1920s and may no longer reproduce in others. Poor recruitment to the adult spawning populations is one of several reasons cited for the decline and lack of recovery of these species and may be the consequence of high mortality during juvenile life stages. High larval and juvenile sucker mortality may be exacerbated by an insufficient quantity of suitable or high quality rearing habitat. In addition, larval suckers may be swept downstream from suitable rearing areas in Upper Klamath Lake into Keno Reservoir, which is seasonally anoxic.
Book Synopsis Distribution and Condition of Larval and Juvenile Lost River and Shortnose Suckers in the Williamson River Delta Restoration Project and Upper Klamath Lake, Oregon by : U.S. Department of the Interior
Download or read book Distribution and Condition of Larval and Juvenile Lost River and Shortnose Suckers in the Williamson River Delta Restoration Project and Upper Klamath Lake, Oregon written by U.S. Department of the Interior and published by CreateSpace. This book was released on 2014-03 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Federally endangered Lost River sucker (Deltistes luxatus) and shortnose sucker (Chasmistes brevirostris) were once abundant throughout their range but populations have declined. They were extirpated from several lakes in the 1920s and may no longer reproduce in other lakes. Poor recruitment to the adult spawning populations is one of several reasons cited for the decline and lack of recovery of these species and may be the consequence of high mortality during juvenile life stages. High larval and juvenile sucker mortality may be exacerbated by an insufficient quantity of suitable or high-quality rearing habitat. In addition, larval suckers may be swept downstream from suitable rearing areas in Upper Klamath Lake into Keno Reservoir, where they are assumed lost to Upper Klamath Lake populations.
Book Synopsis Health and Condition of Endangered Juvenile Lost River and Shortnose Suckers Relative to Water Quality, and Fish Assemblages in Upper Klamath Lake, Oregon, and Clear Lake Reservoir, California by : Summer M. Burdick
Download or read book Health and Condition of Endangered Juvenile Lost River and Shortnose Suckers Relative to Water Quality, and Fish Assemblages in Upper Klamath Lake, Oregon, and Clear Lake Reservoir, California written by Summer M. Burdick and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seasonal Distribution and Abundance of Larval and Juvenile Lost River and Shortnose Suckers in Hanks Marsh, Upper Klamath National Wildlife Refuge, Upper Klamath Lake, Oregon by : U S Department of the Interior
Download or read book Seasonal Distribution and Abundance of Larval and Juvenile Lost River and Shortnose Suckers in Hanks Marsh, Upper Klamath National Wildlife Refuge, Upper Klamath Lake, Oregon written by U S Department of the Interior and published by . This book was released on 2014-03-30 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the summer of 2007, we undertook an assessment of larval and juvenile sucker use of Hanks Marsh in Upper Klamath Lake, Oregon. This 1,200-acre marsh on the southeastern shoreline of the lake represents part of the last remaining natural emergent wetland habitat in the lake. Because of the suspected importance of this type of habitat to larval and juvenile endangered Lost River and shortnose suckers, it was thought that sucker abundance in the marsh might be comparatively greater than in other non-vegetated areas of the lake. It also was hoped that Hanks Marsh would serve as a reference site for wetland restoration projects occurring in other areas of the lake. Our study had four objectives: to (1) examine seasonal distribution and relative abundance of larval suckers in and adjacent to Hanks Marsh in relation to habitat features such as depth, vegetation, water quality, and relative abundance of nonsucker species; (2) determine the presence or absence and describe the distribution of juvenile suckers [35 to 80 mm standard length (SL)] along the periphery of Hanks Marsh; (3) assess spatial and temporal overlap between larval suckers and their potential predators; and (4) assess suitability of water quality throughout the summer for young-of-the-year suckers.
Book Synopsis Distribution, Health, and Development of Larval and Juvenile Lost River and Shortnose Suckers in the Williamson River Delta Restoration Project and Upper Klamath Lake, Oregon by : U.S. Department of the Interior
Download or read book Distribution, Health, and Development of Larval and Juvenile Lost River and Shortnose Suckers in the Williamson River Delta Restoration Project and Upper Klamath Lake, Oregon written by U.S. Department of the Interior and published by CreateSpace. This book was released on 2014-03 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Federally endangered Lost River sucker Deltistes luxatus and shortnose sucker Chasmistes brevirostris were once abundant throughout their range but populations have declined; they have been extirpated from several lakes, and may no longer reproduce in others. Poor recruitment into the adult spawning populations is one of several reasons cited for the decline and lack of recovery of these species, and may be the consequence of high mortality during juvenile life stages. High larval and juvenile sucker mortality may be exacerbated by an insufficient quantity of suitable rearing habitat. Within Upper Klamath Lake, a lack of marshes also may allow larval suckers to be swept from suitable rearing areas downstream into the seasonally anoxic waters of the Keno Reservoir.
Book Synopsis Distribution and Condition of Young-of-Year Lost River and Shortnose Suckers in the Williamson River Delta Restoration Project and Upper Klamath Lake, Oregon, 2008-10 Final Report by : U.S. Department of the Interior
Download or read book Distribution and Condition of Young-of-Year Lost River and Shortnose Suckers in the Williamson River Delta Restoration Project and Upper Klamath Lake, Oregon, 2008-10 Final Report written by U.S. Department of the Interior and published by CreateSpace. This book was released on 2014-03-30 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Nature Conservancy undertook restoration of the Williamson River Delta Preserve with a primary goal "to restore and maintain the diversity of habitats that are essential to the endangered [Lost River sucker (Deltistes luxatus) and shortnose sucker (Chasmistes brevirostris)] while, at the same time, minimizing disturbance and adverse impacts" (David Evans and Associates, 2005). The Western Fisheries Research Center of the U.S. Geological Survey was asked by the Bureau of Reclamation to assist The Nature Conservancy in assessing the use of the restoration by larval and juvenile suckers.
Book Synopsis Near-shore and Off-shore Habitat Use by Endangered Juvenile Lost River and Shortnose Suckers in Upper Klamath Lake, Oregon, 2006 Data Summary by : Summer M. Burdick
Download or read book Near-shore and Off-shore Habitat Use by Endangered Juvenile Lost River and Shortnose Suckers in Upper Klamath Lake, Oregon, 2006 Data Summary written by Summer M. Burdick and published by . This book was released on 2008 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Patterns of Retention and Vagrancy in Larval Lost River and Shortnose Suckers from Upper Klamath Lake, Oregon by : Susan A. Reithel
Download or read book Patterns of Retention and Vagrancy in Larval Lost River and Shortnose Suckers from Upper Klamath Lake, Oregon written by Susan A. Reithel and published by . This book was released on 2006 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Larval transport and retention of two endangered suckers were studied in a highly altered lacustrine/riverine complex. The endangered populations of Lost River sucker, Deltistes luxatus, and shortnose sucker, Chasmistes brevirostris, in Upper Klamath Lake (UKL), Oregon are the largest remnant populations of these suckers. Downstream of UKL, the Keno Impoundment is a seasonally lethal, anoxic habitat. We investigated species densities and hatch date differences between larvae retained in Upper Klamath Lake and those transported below the Link River Dam into the Keno Impoundment. In 2004, larval and juvenile Lost River suckers were captured in greater densities below the dam. Larval shortnose suckers were captured in greater densities in UKL while juveniles were captured in equal densities above and below the dam. Lost River suckers had earlier hatch dates than shortnose suckers and individuals below the dam had earlier average hatch dates for both species. These patterns suggest that, in 2004, early spawned fish, especially Lost River suckers, were more likely to be transported from Upper Klamath Lake while shortnose suckers were more likely to be retained.
Book Synopsis Distribution and Condition of Larval and Juvenile Lost River and Shortnose Suckers in the Williamson River Delta Restoration Project and Upper Klamath Lake, Oregon by : Summer M. Burdick
Download or read book Distribution and Condition of Larval and Juvenile Lost River and Shortnose Suckers in the Williamson River Delta Restoration Project and Upper Klamath Lake, Oregon written by Summer M. Burdick and published by . This book was released on 2012 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Distribution and Condition of Larval and Juvenile Lost River and Shortnose Suckers in the Williamson River Delta Restoration Project and Upper Klamath Lake, Oregon by : Summer M. Burdick
Download or read book Distribution and Condition of Larval and Juvenile Lost River and Shortnose Suckers in the Williamson River Delta Restoration Project and Upper Klamath Lake, Oregon written by Summer M. Burdick and published by . This book was released on 2010 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biological/conference Opinion Regarding the Effects of Operation of the Bureau of Reclamation's Klamath Project on the Endangered Lost River Sucker (Deltistes Luxatus), Endangered Shortnose Sucker (Chasmistes Brevirostris), Threatened Bald Eagle (Haliaeetus Leucocephalus) and Proposed Critical Habitat for the Lost River/shortnose Suckers by :
Download or read book Biological/conference Opinion Regarding the Effects of Operation of the Bureau of Reclamation's Klamath Project on the Endangered Lost River Sucker (Deltistes Luxatus), Endangered Shortnose Sucker (Chasmistes Brevirostris), Threatened Bald Eagle (Haliaeetus Leucocephalus) and Proposed Critical Habitat for the Lost River/shortnose Suckers written by and published by . This book was released on 2001 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seasonal Distribution and Abundance of Larval and Juvenile Lost River and Shortnose Suckers in Hanks Marsh, Upper Klamath National Wildlife Refuge, Upper Klamath Lake, Oregon by : Greer O. Anderson
Download or read book Seasonal Distribution and Abundance of Larval and Juvenile Lost River and Shortnose Suckers in Hanks Marsh, Upper Klamath National Wildlife Refuge, Upper Klamath Lake, Oregon written by Greer O. Anderson and published by . This book was released on 2009 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
