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Showing 1 to 20 of 46 for “"Blackwater"”.
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Spectral Irradiance and Phytoplankton Community Composition In Blackwater Estuaries
<p>The underwater light field in blackwater environments is strongly influenced by colored dissolved organic matter (CDOM) which absorbs blue light and shifts the underwater light field to the red end of the electromagnetic spectrum. My dissertation research examined relationships between spectral …
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Examining Fluorescent Decay Rates For Microbial Source Tracking In South Carolina Blackwater Systems
… fluorescent decay protocol applicability to blackwater systems.</p> <p> Escherichia coli concentrations within the Gills Creek watershed could be attributed to industrialization around sampling sites, dilution, bacterial settling into lakes and ponds, and precipitation. Optical brightener …
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Determining Sources of Fecal Pollution in the Blackwater River Watershed, Franklin County, Virginia
… to determine sources of fecal pollution in the Blackwater River in South-central Virginia. The Department of Environmental Quality designated six segments as impaired due to high fecal coliform concentrations with non-point source (NPS) agriculture the suspected source of impairment. The …
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The effect of regulation by two impoundments on an acid, blackwater, Cape mountain stream
The world-wide proliferation of dams in the last few decades has necessitated a fuller understanding of the effects of stream regulation but has also provided a setting for testing and developing basic theories of stream ecology. Two important concepts in stream ecology, the River Continuum Concept …
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Foot-notes to tropical medicine on beri-beri, blackwater fever, and the life history of Culicinae
1. Beri-Beri . . Page 1. 2. Blackwater Fever . " 12. 3. Life History of Culicinae " 23.
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A study on the water chemistry and plankton in blackwater lakelets of the south-western Cape
Blackwater lakelets in the south-western Cape are amongst the most darkly coloured humic waters in the world. In addition the aquatic invertebrate fauna of this region represents a relict and highly endemic group of the South Temperate Gondwanian fauna. The major environmental and biological …
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An Analysis of Changes in the Long Term Characteristics of River Flows in the Munster Blackwater Catchment
… characteristics of river flows in the Munster Blackwater catchment. The portion of the Blackwater catchment above the river flow gauge at Kilavullen was the focus of this study. This is amongst the oldest continuous flow stations in the country with continuous flow data available from 1955 to …
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Electrochemical Disinfection of Liquid Human Waste Using Potentiodynamic Methods and Controlled Electrode Surface Chemistry
… that can remediate human liquid waste, or, blackwater. Herein, electrochemical disinfection as a means of treating blackwater is investigated using degenerately boron-doped diamond and Magnéli-phase titanium sub-oxide electrodes. It is found that both can be operated in potentiodynamic modes …
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Blackwater versus Blackbeard : which international regulations exist for the use of private maritime security companies in vessel protection operations?
The problem of piracy and armed robbery at sea has sharply risen in the last decades. As a result, shipping companies, governments, insurances and maritime organisations have tried to approach the problem in different ways, the employment of private maritime security companies being one of them. …
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Clay mineralogy and soil classification of alluvial and upland soils associated with Blackwater and Nottoway rivers in southeastern Virginia
… studied, thirty random samples associated with Blackwater and Nottoway rivers were collected in the spring of 1987 from Surry, Sussex, and Southampton counties. Soil classification as well as mineralogical, chemical, and physical analysis were conducted for all samples. The purposes of this …
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Assessing Pleistocene climate on the Southern High Plains through geochemical and physical characteristics of paleosols archived in the Blackwater Draw Formation
… the west between 2 and 1.4 Ma, and forming the Blackwater Draw Formation, an eolian mantle, locally up to 27 m thick, composed of loess (wind-blown silt) deposits with loess tops forming individual paleosols. Loess-paleosol couplets represent periods of deposition followed by periods of …
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Environmental DNA metabarcoding and citizen science as a cost-effective and rapid tool for monitoring terrestrial mammalian species
… eDNA sampling along two rivers (Colne and Blackwater) in Essex, in the southeast of England. In this study, we replicate the eDNA sampling from a previous study that was carried out in July 2019 by professionals. Here, eDNA samples were collected by the EWT volunteers between December 2019 …
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Stratification of Southern Georgia Streams For Rapid Bioassessment Focusing on Differences in Structure and Function of Black Water and Clear Water Streams
… of the selected metrics showed that some of the blackwater reference streams and clearwater reference streams are randomly placed over the ordination space and a few of the black water reference streams and a few of the clear water reference streams formed distinct clusters. As a result, the …
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War Markets: The Neoliberal Theory and The United States Military
… contingent force, behind the U.S. military. Blackwater, or currently Xe Services LLC, is a powerful organization within the private war industry. Blackwater has accumulated over one billion dollars in contracts with the U.S. government. With the expanding use of private war contractors, their …
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Species richness and composition of avifaunal communities in a complex Amazonian landscape
… compare across terra firme, whitewater and blackwater seasonally flooded forests and their seasonal variation in water levels. Avifauna was sampled at nine sites (three terra firme, three whitewater and three blackwater) during low water, and repeated during high water. Using ten 15-minute …
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Community ecology and population dynamics of the European native oyster (Ostrea edulis) in Essex, UK: A baseline for the management of the Blackwater, Crouch, Roach and Colne Estuaries Marine Conservation Zone
Following the designation of the Blackwater Crouch Roach and Colne Estuaries Marine Conservation Zone (hereafter BCRC.MCZ) in 2013, there is now a legal obligation to “protect and enhance” remaining stock of the European native oyster, Ostrea edulis. Despite this, little is known about the current …
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The endangered European native oyster Ostrea edulis (L) and creation of Marine Conservation Zones: a win – win scenario for fisheries and conservation?
… Between 2012 – 2015, Essex Wildlife Trust, Blackwater Oystermans Association and the University of Essex undertook a study of density and distribution of O. edulis across the 282 km2 area known as the Blackwater, Colne, Crouch & Roach recommended MCZ (BCCR). This showed that population …
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Biotic and Abiotic Characteristics Influencing Nest Location and Trophic Relationships of the Fungus-Growing Ant <i>Trachymyrmex septentrionalis</i> (Formicidae: <i>Attini)</i>
… septentrionalis</em> occur in patches throughout Blackwater Ecological Preserve, a longleaf pine forest in southeastern Virginia. Blackwater Ecologic Preserve is a 129 hectare tract of land, located in Isle of Wight county, that is undergoing a regimen of controlled burning to increase the …
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