Download or read book Characterization of Microbial and Benthic Macroinvertebrate Communities in Streams Affected by Contaminated Mine Drainage in Central Pennsylvania written by Kimberly Dawn Royal and published by . This book was released on 2001 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Relationship Between Acid Mine Drainage and the Benthic Macroinvertebrate Community Structure in the Tioga River Tioga County Pennsylvania written by Charles Edward Weed and published by . This book was released on 1971 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Macroinvertebrate Community Structure in Response to Fracking and Abandoned Mine Drainage in Pennsylvania Streams written by Cassie M. Thomas and published by . This book was released on 2018 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microbial Biodiversity written by P. Ponmurugan and published by Cambridge Scholars Publishing. This book was released on 2020-03-18 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biodiversity is among the richest treasures of the earth. Despite their small size, microbes play a vital role in environmental monitoring and making the earth sustainable. Microorganisms preserve and assist plants and animals o either directly or indirectly, and, due to their omnipresence in nature, they inhabit conditions such as extreme temperatures, water, soil, salt, medical wastes, agricultural wastes, and air. Microbes are also important in human culture and play an essential role in existence of life. They are present in food fermentation, sewage treatment, medical, agricultural, and soil waste, antibiotics, soil fertility, model organisms, and human microbiota, aid with decomposition, and are responsible for infectious diseases. This volume represents an important contribution to the field, highlighting the importance of microbial biodiversity to society.
Download or read book Analysis of Changes in Macroinvertebrate Communities on the Mill Creek Watershed Resulting from Passive Treatment of Acid Mine Drainage written by Amy Beth Myers and published by . This book was released on 2011 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Copper Mine Drainage on the Benthic Macroinvertebrate Communities in a Central Vermont River written by Nancy Burke and published by . This book was released on 1999 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Impact of Midnight sic Mine Drainage on the Benthic Macroinvertebrate Community in Blue Creek written by Stefan H. Cairns and published by . This book was released on 1988 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The objective of this study was to describe and quantify the impact of the Midnite Mine on the benthic macroinvertebrate community of Blue Creek. Macroinvertebrate samples were collected upstream and downstream of the entry of the mine drainage throughout 1987. The sampling scheme was designed to identify the linear impact of the mine drainage by analyzing the invertebrate community in terms of density, diversity, similarity, presence- absence, and number of taxa. Seasonal and annual trends were determined by comparison of sample dates and by comparison of the previous investigations in the same system. The mine drainage reduced the macroinvertebrate density by 85 percent on a seasonal average immediately downstream of the mine drainage entry. The degree of impact was consistently high for all five sample dates and ranged from 76 percent to 94 percent. Recovery of macroinvertebrate density downstream was dependent on seasonal water discharge rates. Oyachen Creek, the downstream tributary, was dry for three of the sample dates negating the dilution effect reported in the previous study by Plotnikoff et al. (1988). Without this dilution, the downstream Blue Creek macroinvertebrate communities never recovered more than 39 percent from the initial density impact. There was a significant (0.05 level) difference in mean density for each downstream station when compared to upstream stations. The number of taxa was also reduced downstream of the mine drainage entry, but this was attributed to the overall density impact since diversity, similarity, and presence-absence showed only slight differences. There was a significant (0.05 level) difference in mean diversity in only one downstream station when compared to upstream stations. Comparison of the 1986 impact with1987 showed a similar level of initial impact. The amount of recovery differed and was attributed to the lower water discharge and subsequent extended drying of the downstream tributary in 1987. The Midnite Mine drainage with its increased conductivity, total hardness, sulfate, total solids, nitrate, and heavy metals have significantly reduced the macroinvertebrate densities of Blue Creek. Recovery from the drainage impact appears dependent on the overall water discharge level"--Document.
Download or read book The Effects of Mine Drainage on the Macrobenthic Insect Community of Blue Creek Spokane Reservation WA written by Robert W. Plotnikoff and published by . This book was released on 1988 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The benthic macroinvertebrate community of Blue Creek was examined in terms of density, diversity, and similarity at: (1) two stations (stations 1 and 2), located upstream from a drainage tributary carrying effluent from the Midnite uranium mine (pre- impact zone); (2) two stations (stations 3 and 4) located immediately downstream from the mine drainage tributary (impact zone); and (3) two stations (stations 5 and 6) located further downstream, below the confluence of Oyachen Creek (recovery zone). Benthic macroinvertebrate samples collected in the impact zone showed significant differences in density and diversity from samples taken in the pre-impact zone. Benthic macroinvertebrate mean density declined from 6,317 organisms/m2 in the pre-impact zone to 2,581 organisms/m2 in the impact zone. Densities were significantly different between pre-impact zone and impact zone stations (Mann-Whitney U test, p>̲ .05). Benthic macroinvertebrate diversity declined from 3.30 in the pre-impact zone to 2.80 in the impact zone which also showed significant differences (p>̲ .05). The community structure in the impact and recovery zone stations was less diverse than in upstream pre-impact zone stations. Impact zone stations were represented by fewer functional groups. Benthic macroinvertebrates collected in the impact zone of Blue Creek also showed functional differences from samples taken further upstream (pre-impact zone). Benthic invertebrates at stations 3, 4 and 5 consisted primarily of organisms representing the shredder and collector functional groups. Populations of scraper and gatherer functional groups were predominant in upstream pre- impact zone sample stations 1 and 2. Greater representation of individuals known to use autochthonous food sources (food production from within the stream, e.g. periphyton) were found at stations 1 and 2. Invertebrate populations in the impact zone were characterized by organisms which primarily consumed organic material originating from allochthonous food sources (food input from terrestrial sources, e.g., leaf litter)"--Document.
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1990 with total page 1180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of the Pennsylvania Academy of Science written by and published by . This book was released on 2006 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Season and Location Upon the Shannon Weaver Species Diversity Indices of Six Communities of Benthic Macroinvertebrates of Town Run Clarion County Pennsylvania written by Michael Thomas Werner and published by . This book was released on 1976 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Determining the Benthic Macroinvertebrate Community Composition of Freshwater Streams from Fish Gut Analysis written by Shelly Pickett and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The monitoring of changes in benthic macroinvertebrate communities over time facilitates the evaluation of changes in the function and structure of aquatic ecosystems. I hypothesize that it will be possible to reconstruct historic macroinvertebrate communities by examining gut contents of fishes preserved in natural history museums. Researchers can use this knowledge to estimate the historic benthic macroinvertebrate community for streams from which we have fish museum specimens. These historic data can then be compared to current data to see how macroinvertebrate communities have changed over time.In this study, the fishes whose gut content most accurately reflected the benthic macroinvertebrate community of a freshwater stream, specifically Marshalls Creek, were identified. Both fish species and benthic macroinvertebrates were collected at various sites of Marshalls Creek in East Stroudsburg, PA, in March, August, and December 2010. Collections were taken at different times of year to reflect seasonal variation both in species sampled and quantity collected. 231 fish were dissected and their gut contents identified. Bluespotted Sunfish, Redbreast Sunfish, and White Suckers were the species that best represented the benthic macroinvertebrate community from their gut content. These species can be used to predict 81% of the total summer taxa.If there are 10 museum specimens of the selected species available, (in this case 10 White Suckers, 10 Bluespotted Sunfish, and 10 Redbreast Sunfish), one could dissect a total of 30 fish and expect to identify 68% of the total taxa (both kicknet and gut taxa combined) found in the freshwater stream where the specimens originated.In order to estimate sampling distribution, using R 3.0.2, 100 simulations were run of each combination of three fish species to determine the average quantity of taxa consumed (to the family level) along with sampling variation. The benthic macroinvertebrate data obtained fromivthe dissection of museum specimens could then be compared to data obtained from more recently collected specimens (10 White Suckers, 10 Bluespotted Sunfish, and 10 Redbreast Sunfish) and a comparison made to determine how the macroinvertebrate community has changed over time. Are families associated with high quality streams missing from the current collection? Based on which macroinvertebrate families are present and/or absent, the types of stresses that have caused these absences can be determined.
Download or read book Regional Cooperation for Water Quality Improvement in Southwestern Pennsylvania written by National Research Council and published by National Academies Press. This book was released on 2005-04-04 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: The city of Pittsburgh and surrounding area of southwestern Pennsylvania face complex water quality problems, due in large part to aging wastewater infrastructures that cannot handle sewer overflows and stormwater runoff, especially during wet weather. Other problems such as acid mine drainage are a legacy of the region's past coal mining, heavy industry, and manufacturing economy. Currently, water planning and management in southwestern Pennsylvania is highly fragmented; federal and state governments, 11 counties, hundreds of municipalities, and other entities all play roles, but with little coordination or cooperation. The report finds that a comprehensive, watershed-based approach is needed to effectively meet water quality standards throughout the region in the most cost-effective manner. The report outlines both technical and institutional alternatives to consider in the development and implementation of such an approach.
Download or read book Relations of Benthic Macroinvertebrates to Concentrations of Trace Elements in Water Streambed Sediments and Transplanted Bryophytes and Stream Habitat Conditions in Nonmining and Mining Areas of the Upper Colorado River Basin Colorado 1995 98 written by Scott V. Mize and published by . This book was released on 2002 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water Quality and Benthic Macroinvertebrate Bioassessment of Gallinas Creek San Miguel County New Mexico 1987 90 written by Herbert S. Garn and published by . This book was released on 1996 with total page 74 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 1991 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Benthic Macroinvertebrate Community Composition and Distribution Related to Seasonal and Geochemical Changes in a Chronically Acidified Stream written by Darlene Marie Madarish and published by . This book was released on 1997 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
