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Fish Community Structure In Relation To Water Quality And Habitat In The Upper Pecos River Texas
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Book Synopsis Fish Community Structure in Relation to Water Quality and Habitat in the Upper Pecos River, Texas by : Greg L. Larson
Download or read book Fish Community Structure in Relation to Water Quality and Habitat in the Upper Pecos River, Texas written by Greg L. Larson and published by . This book was released on 1996 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Benthic Macroinvertebrate Community Structure in Relation to Water Quality and Habitat in the Upper Pecos River, Texas by : Greg L. Larson
Download or read book Benthic Macroinvertebrate Community Structure in Relation to Water Quality and Habitat in the Upper Pecos River, Texas written by Greg L. Larson and published by . This book was released on 1996 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rivers of the United States, Volume V Part B by : Ruth Patrick
Download or read book Rivers of the United States, Volume V Part B written by Ruth Patrick and published by Wiley. This book was released on 2003 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rivers of the United States, Volume 5, Part B: Gulf ofMexico is an essential volume for studying water-related issuesof the region. * Provides authoritative coverage by a world-renowned expert onlimnology. * Includes information on the impact of pollution and developmenton the health of rivers, and how conservation and reclamationefforts can repair past damage.
Book Synopsis Coupling Changes in Physical Habitat and Fish Community Structure in Central Texas Streams with Interannual Variability in Stream Discharge by : Charles Edwin Stanley
Download or read book Coupling Changes in Physical Habitat and Fish Community Structure in Central Texas Streams with Interannual Variability in Stream Discharge written by Charles Edwin Stanley and published by . This book was released on 2009 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrological variability and instream habitat connectivity play predominant roles in governing fish communities in lotic ecosystems. Hydrologic extremes of drought (2006) and flood (2007) events were the backdrop for fish assemblage and physical habitat data collected during summer in 28 central Texas streams. I evaluated the correspondence between the magnitude of physical habitat and fish community composition change in stream reaches sampled in these two contrasting years using multivariate statistics and ordination techniques. Streams characterized by disconnected pools had different fish community structure and different habitat characteristics than streams that had habitats connected by flowing water. The amount of interannual change in both fish community structure and habitat characteristics was greatest between streams that had disconnected pools in 2006 and their paired samples in 2007. Indicator species analysis revealed indicator species of disconnected and connected habitat types whose life histories give us information about the biotic interactions within these habitats.
Book Synopsis Habitat Structure and Fish Communities of Warmwater Streams by : James R. Karr
Download or read book Habitat Structure and Fish Communities of Warmwater Streams written by James R. Karr and published by . This book was released on 1983 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Relative Abundance and Niche Partitioning in the Fish Community of the Pecos River, Pecos County, Texas by : Christopher William Hoagstrom
Download or read book Relative Abundance and Niche Partitioning in the Fish Community of the Pecos River, Pecos County, Texas written by Christopher William Hoagstrom and published by . This book was released on 1994 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Influence of Connectivity and Habitat Heterogeneity on Fishes in the Upper San Marcos River, Texas by : Kenneth P.K. Behen
Download or read book Influence of Connectivity and Habitat Heterogeneity on Fishes in the Upper San Marcos River, Texas written by Kenneth P.K. Behen and published by . This book was released on 2013 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fish distributions and habitat association models are useful for predicting fish community responses to anthropogenic modifications, such as reductions in water quantity and alterations of instream habitats. Among western gulf slope drainages, spring runs (i.e., from spring outflows to the confluence with larger streams) provide habitats for a large number of endemic fish fauna; however, current knowledge of fish distributions and habitat associations within spring runs is insufficient to accurately predict community changes or to assess community changes as a result of pre-existing anthropogenic modifications. Based on previous research, spring-associated fishes are distributed homogenously within spring runs and rarely in mainstem rivers, whereas riverine fishes of mainstem rivers rarely enter spring runs. Therefore, a primary prediction of this study was that spring-associated fishes of the upper San Marcos River would be homogenously distributed from spring origin (Spring Lake) to the confluence with the Blanco River. I quantified fish abundance, densities, and habitat associations during four seasons and among five reaches within the river, using multiple gear types to sample wadeable and non-wadeable habitats. Overall, spring-associated fishes were not homogenously distributed throughout the river, attributed to a lack of connectivity and likely habitat alterations. Also, riverine fishes occurred in high abundance throughout the river. Fish-habitat associations ranged from slack water specialists (i.e., endangered Fountain Darter, endemic Large Spring Gambusia) to swift water specialists (i.e., regional endemic Burrhead Chub and Guadalupe Darter). Results from this study and a companion study demonstrated that the upper San Marcos River fish community is highly persistent during a span of 100 years, have highly predictable habitat associations, and demonstrate the ecological function of habitat heterogeneity and constant water quantity .
Book Synopsis Descriptions, Classifications, and Explanations of Processes and Patterns Structuring and Maintaining Inland Fish Communities by : Cody Andrew Craig
Download or read book Descriptions, Classifications, and Explanations of Processes and Patterns Structuring and Maintaining Inland Fish Communities written by Cody Andrew Craig and published by . This book was released on 2020 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt: Factors influencing fish community structure are numerous, complex, and interdependent. Structuring mechanisms of aquatic communities fall within four broad classes (i.e., zoogeography and deep-evolution, local abiotic and biotic phenomena, autecology of individual species, and biotic interactions among fishes) and explain why fishes are found in local and regional communities. The common theme among chapters is identification of patterns that aid in understanding contributions of the four broad classes in regulating fish community structure. A unique contribution of my work is the application of theoretical community ecology framework across multiple scales, from individuals to ecoregions, using descriptive and manipulative field and laboratory experiments. Chapter 1 provides updated drainage checklist and keys for Texas inland fishes, which provides accurate identification of study organisms. Chapter 2 establishes standardized and adaptable framework for assessing and reporting fish-environment associations. The framework was then applied to 11 habitat variables and 146 inland fishes of Texas. Remaining chapters focus on identification of mechanisms that maintain fish community structure, including water quantity and water quality within spring complexes (Chapter 3--San Antonio historical and current fish community, Chapter 4-- Testing expectations of an understudied spring fish community using models and historical data) and biotic factors (Chapter 5--Temperature-mediated feeding between spring-associated and riverine-associated congeners, with implications for community segregation).
Book Synopsis The Influence of Urbanization on Streams by : Gregory J. Knothe
Download or read book The Influence of Urbanization on Streams written by Gregory J. Knothe and published by . This book was released on 2012 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: Streams throughout the U.S. have been historically subjected to degradation due to urbanization, agriculture and industry. The influence of urbanization on stream ecosystems is difficult to evaluate, due to many interacting variables. Previous studies have found that the degree of urbanization influences flow regime, pollutant loading and resulting fish community structure. Our study investigated the influence of urbanization on hydrology, physical habitat, water quality, and resulting fish community structure at 8 coastal streams located in Southeastern Texas. Streamflow, physical habitat, water quality and fish community data were collected at these sites during 2011. The stream sites were selected to represent a variety of land uses ranging from highly urbanized, to minimally urbanized or reference conditions. In order to determine the degree of urbanization within each watershed ArcGIS software was used to assess land use. Total impervious area (TIA) and percent impervious area (PIA) was used for each watershed as a simple index of urbanization. TIA and PIA were estimated using 2006 impervious surface data obtained from the United States Geological Survey. Various fish community metrics including the Index of Biological Integrity (IBI), Shannon-Weiner diversity index, Pielou's evenness and species richness, were used to evaluate the impact of urbanization on fish community structure. Estimated land use data was compared to IBI scores, fish community metrics, water quality, and physical habitat. Several statistical analysis methods including Pearson correlation analysis, Analysis of Variance (ANOVA), principle component analysis and cluster analysis were used to evaluate the response of fish communities to land use and associated hydrology, physical habitat, and water quality. We found that IBI scores and stream fish diversity were negatively correlated with PIA. We also observed positive correlations between PIA/TIA and orthophosphate and combined nitrate and nitrite concentrations among the sites. We did not observe any strong correlations between the amount of impervious area within the upstream watershed and physical habitat metrics, with the exception of a negative correlation between TIA with mean instream cover, riparian width and tree canopy cover. Our study suggests that future management plans could include a threshold of impervious area for a watershed, in order to protect or promote biological integrity and water quality.
Book Synopsis Rivers of North America by : Michael D. Delong
Download or read book Rivers of North America written by Michael D. Delong and published by Academic Press. This book was released on 2023-04-20 with total page 1109 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rivers of North America, Second Edition features new updates on rivers included in the first edition, as well as brand new information on additional rivers. This new edition expands the knowledge base, providing readers with a broader comparative approach to understand both the common and distinct attributes of river networks. The first edition addressed the three primary disciplines of river science: hydrology, geomorphology, and ecology. This new edition expands upon the interactive nature of these disciplines, showing how they define the organization of a riverine landscape and its processes. An essential resource for river scientists working in ecology, hydrology, and geomorphology. Provides a single source of information on North America’s major rivers Features authoritative information on more than 200 rivers from regional specialists Includes full-color photographs and topographical maps to illustrate the beauty, major features, and uniqueness of each river system Offers one-page summaries help readers quickly find key statistics and make comparisons among rivers
Book Synopsis Possible Improvement of Quality of Water of the Pecos River by Diversion of Brine at Malaga Bend, Eddy County, New Mexico by : Geological Survey (U.S.). Water Resources Division
Download or read book Possible Improvement of Quality of Water of the Pecos River by Diversion of Brine at Malaga Bend, Eddy County, New Mexico written by Geological Survey (U.S.). Water Resources Division and published by . This book was released on 1954 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bitter Waters written by Patrick Dearen and published by University of Oklahoma Press. This book was released on 2016-03-09 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rising at 11,750 feet in the Sangre de Cristo range and snaking 926 miles through New Mexico and Texas to the Rio Grande, the Pecos River is one of the most storied waterways in the American West. It is also one of the most troubled. In 1942, the National Resources Planning Board observed that the Pecos River basin “probably presents a greater aggregation of problems associated with land and water use than any other irrigated basin in the Western U.S.” In the twenty-first century, the river’s problems have only multiplied. Bitter Waters, the first book-length study of the entire Pecos, traces the river’s environmental history from the arrival of the first Europeans in the sixteenth century to today. Running clear at its source and turning salty in its middle reach, the Pecos River has served as both a magnet of veneration and an object of scorn. Patrick Dearen, who has written about the Pecos since the 1980s, draws on more than 150 interviews and a wealth of primary sources to trace the river’s natural evolution and man’s interaction with it. Irrigation projects, dams, invasive saltcedar, forest proliferation, fires, floods, flow decline, usage conflicts, water quality deterioration—Dearen offers a thorough and clearly written account of what each factor has meant to the river and its prospects. As fine-grained in detail as it is sweeping in breadth, the picture Bitter Waters presents is sobering but not without hope, as it also extends to potential solutions to the Pecos River’s problems and the current efforts to undo decades of damage. Combining the research skills of an accomplished historian, the investigative techniques of a veteran journalist, and the engaging style of an award-winning novelist, this powerful and accessible work of environmental history may well mark a turning point in the Pecos’s fortunes.
Book Synopsis Longitudinal Variation in Fish Community Structure and Water Temperature in the Upper Colorado River by : Douglas Bruce Osmundson
Download or read book Longitudinal Variation in Fish Community Structure and Water Temperature in the Upper Colorado River written by Douglas Bruce Osmundson and published by . This book was released on 1999 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Microhabitat Use and Community Structure of Fishes Downstream of the Proposed George Parkhouse I and Marvin Nichols I Reservoir Sites on the Sulphur River, TX by : Frances P. Gelwick
Download or read book Microhabitat Use and Community Structure of Fishes Downstream of the Proposed George Parkhouse I and Marvin Nichols I Reservoir Sites on the Sulphur River, TX written by Frances P. Gelwick and published by . This book was released on 2000 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mesohabitat Use and Community Structure of Brazos River Fishes in the Vicinity of the Proposed Allen Creek Reservoir by : Frances P. Gelwick
Download or read book Mesohabitat Use and Community Structure of Brazos River Fishes in the Vicinity of the Proposed Allen Creek Reservoir written by Frances P. Gelwick and published by . This book was released on 2002 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fish Community and Habitat Assessments Within an Urbanized Spring Complex of the Edwards Plateau by : Cory Michael Scanes
Download or read book Fish Community and Habitat Assessments Within an Urbanized Spring Complex of the Edwards Plateau written by Cory Michael Scanes and published by . This book was released on 2016 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spring complexes within the arid region of the Edwards Plateau are diversity hotspots and evolutionary refugia for numerous aquatic fauna. Within the last 100 years, anthropogenic modifications and uses of spring complexes are associated with imperilment of aquatic fauna. Purposes of this study were to assess biotic integrity (i.e. regional and natural species composition and diversity; Karr and Dudley 1981) of the fish community and to quantify current community structure and habitat associations within the Comal springs complex, the greatest discharge spring within the Edwards Plateau region of central Texas and located within the urban landscape. Fishes and habitats were quantified among wadeable and non-wadeable areas and among six reaches of the Comal springs complex seasonally for one year. Twenty-five species and 23,318 fishes were observed. Spring-associated fish richness (S) was six, comprising 77% of the total catch per unit effort. Compared to reference conditions and to historical records, species richness and relative abundances suggest that the Comal spring complex has high biotic integrity despite extremely low flow conditions and rotenone treatment in the 1950s and habitat modifications ( e.g. low head dams, land use conversion, bank stabilization) and high recreation use since the 1950s. However, the fish community was not homogenous among all reaches. Within two reaches of high recreational use, spring-associated fish richness and relative abundances were lower than other four reaches but still maintained high relative abundances of the federally-listed Fountain Darter. Fish-habitat associations were similar to reported habitat associations for most fishes. A notable exception was observed for the Fountain Darter, which had a more ubiquitous distribution and was not strongly associated with vegetation as previously found. Into the future, this study can be used as a baseline to monitor and assess threats to the Comal spring complex.
Book Synopsis The Ecology of Open-bay Bottoms of Texas by : Neal Earl Armstrong
Download or read book The Ecology of Open-bay Bottoms of Texas written by Neal Earl Armstrong and published by . This book was released on 1987 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
