Download or read book Analysis of the Benthic Macroinvertebrate Community Structure for Assessment of Water Quality of the Des Moines River written by Richard Leonard Westphal and published by . This book was released on 1973 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Reports Supported by Office of Water Resources Research Under the Water Resources Act of 1964 Received During the Period July 1971 1977 79 written by Water Resources Scientific Information Center and published by . This book was released on 1972 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Reports Supported by Office of Water Research and Technology Received During the Period written by and published by . This book was released on 1973-07 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Reports Supported by Office of Water Resources Research Under the Water Resources Research Act of 1964 written by Water Resources Scientific Information Center and published by . This book was released on 1974 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1974 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1974 with total page 1198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements written by and published by . This book was released on 1974 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Assessment of the Utility of Benthic Macroinvertebrate and Fish Community Structure in Biomonitoring Peace Athabasca and Slave River Basins written by Kevin Joseph Cash and published by . This book was released on 1996 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data on benthic macroinvertebrate and fish community structure are widely recognised as being very useful in cumulative assessment and issues of ecosystem health and integrity. Measurements of aquatic community structure have been made periodically within the northern Alberta river basins over the past 30 years, but these data have not been standardised or co-ordinated, nor analysed to determine their appropriateness or to assess the general state of the aquatic ecosystem. This report describes efforts to assess the nature and quality of long-term data sets measuring benthic invertebrate and fish community structure and effluent loading within the Peace, Athabasca, and Slave river drainages. Information was collated and standardised to assess the utility of applying current biomonitoring techniques to these data, and recommendations were made on the most appropriate approaches to use in a long-term cumulative effects monitoring plan.
Download or read book Analysis of Variability in New York State Benthic Macroinvertebrate Samples written by Alexander Johnston Smith and published by . This book was released on 2004 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Determining the Association Between the Structure of Stream Benthic Macroinvertebrate Communities and Agricultural Best Management Practices written by Roger Holmes (M.Sc.) and published by . This book was released on 2014 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Farmers have been encouraged to adopt more sustainable farming practices (BMPs) that mitigate adverse agricultural effects on the natural environment. However, the ability of BMPs to protect or restore riverine systems continues to be questioned due to limited evidence directly linking BMP use with improved ecological conditions. The exclusion of hydrological pathways in previous field studies may explain why a direct link has not yet been established. The goal of this study was to assess the association between benthic macroinvertebrate community structure and the number and location of agricultural BMPs. Macroinvertebrates and water chemistry were sampled in 30 headwater catchments in the Grand River Watershed. Catchments exhibited gradients of BMP use and location as measured by the degree of hydrologic connectedness. Stepwise ordination regressions and variance partitioning were used to determine which environmental variables (i.e., BMP metrics, water chemistry parameters, habitat characteristics, and land use variables) were associated with benthic macroinvertebrate community structure. Water chemistry parameters were negatively associated with BMP metrics suggesting BMPs were mitigating losses of nutrients and sediments. However, BMP abundance and location explained minimal variation in benthic macroinvertebrate structure within the 30 sampled catchments. The absence of a strong association between BMPs and benthic macroinvertebrates may indicate a need for greater numbers and targeted siting of BMPS to improve water quality beyond a threshold point that would allow recolonization of intolerant invertebrate taxa. Focusing of conservation goals on ecological conditions and the promotion of BMPs that enhance in-stream habitat may also be required.
Download or read book Feasibility of Combining Two Aquatic Benthic Macroinvertebrate Community Databases for Water quality Assessment written by Bernard N. Lenz and published by . This book was released on 1997 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Download or read book Assessment of macroinvertebrate communities in adjacent urban stream basins Kansas City Missouri metropolitan area 2007 through 2011 written by Eric D. Christensen and published by CreateSpace. This book was released on 2013 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: Macroinvertebrates were collected as part of two separate urban water-quality studies from adjacent basins, the Blue River Basin (Kansas City, Missouri), the Little Blue River and Rock Creek Basins (Independence, Missouri), and their tributaries. Consistent collection and processing procedures between the studies allowed for statistical comparisons. Seven Blue River Basin sites, nine Little Blue River Basin sites, including Rock Creek, and two rural sites representative of Missouri ecological drainage units and the area's ecoregions were used in the analysis. Different factors or levels of urban intensity may affect the basins and macroinvertebrate commu- nity metrics differently, even though both basins are substan- tially developed above their downstream streamgages (Blue River, 65 percent; Little Blue River, 52 percent). The Blue River has no flood control reservoirs and receives wastewa- ter effluent and stormflow from a combined sewer system. The Little Blue River has flood control reservoirs, receives no wastewater effluent, and has a separate stormwater sewer system. Analysis of macroinvertebrate community structure with pollution-tolerance metrics and water-quality parameters indicated differences between the Blue River Basin and the Little Blue River Basin.
Download or read book Assessment of Macroinvertebrate Communities in Adjacent Urban Stream Basins Kansas City Missouri Metropolitan Area 2007 Through 2011 written by Eric Christensen and published by Createspace Independent Publishing Platform. This book was released on 2014-08 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Macroinvertebrates were collected as part of two separate urban water-quality studies from adjacent basins, the Blue River Basin (Kansas City, Missouri), the Little Blue River and Rock Creek Basins (Independence, Missouri), and their tributaries. Consistent collection and processing procedures between the studies allowed for statistical comparisons. Seven Blue River Basin sites, nine Little Blue River Basin sites, including Rock Creek, and two rural sites representative of Missouri ecological drainage units and the area's ecoregions were used in the analysis. Different factors or levels of urban intensity may affect the basins and macroinvertebrate commu- nity metrics differently, even though both basins are substan- tially developed above their downstream streamgages (Blue River, 65 percent; Little Blue River, 52 percent). The Blue River has no flood control reservoirs and receives wastewa- ter effluent and stormflow from a combined sewer system. The Little Blue River has flood control reservoirs, receives no wastewater effluent, and has a separate stormwater sewer system. Analysis of macroinvertebrate community structure with pollution-tolerance metrics and water-quality parameters indicated differences between the Blue River Basin and the Little Blue River Basin.
Download or read book The Effects of Water Quality on Benthic Macroinvertebrate Community Structure Waterford River Drainage Basin St John s written by Tony Clemens and published by . This book was released on 1985 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Index written by and published by . This book was released on 1975 with total page 1262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements written by and published by . This book was released on 1974 with total page 1544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
