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Effects Of Acid Mine Drainage On Stream Fish Assemblages In The North Chickamauga Creek Watershed, Tennessee, Kristie J. Jenkins

Honors Theses

Approximately 18 miles of the NCC system, Tennessee is polluted by acid mine drainage (AMD). The effects of AMD upon the North Chickamauga Creek (NCC) system were evaluated from water quality measurements, habitat assessments, and fish collections. Sampling surveys were conducted at three AMO-impacted (pH < 5.5) and two reference sites (pH> 6.2) in the NCC system. Stream fish were collected using backpack electroshockers and hoop nets. A total of seven species were collected at the reference sites, whereas three species were collected at the AMO-impacted sites. Fish abundance was significantly greater (P < 0.1) at the reference sites than at the AMO-impacted sites, regardless of the sampling technique. No fish were collected at one of the AMO-impacted streams where the pH was <5 and the concentration of dissolved aluminum was > 700 mg/L. Results of my study indicate that fish populations were affected more by …

Las Vegas Wash Water Quality Monitoring Program: 1996 Report Of Findings, Richard A. Roline, James J. Sartoris, U.S. Bureau Of Reclamation, U.S. Geological Survey

Publications (WR)

Las Vegas Wash, a natural wash east of the city of Las Vegas, Nevada, carries stormwater, groundwater drainage, and sewage effluent from three sewage treatment plants to Lake Mead. The Wash provides nearly the only surface water outlet for the entire 2,193 mi² of Las Vegas Valley. A drainage area of 1,586 mi² contributes directly to the Wash through surface flow which is channeled to Las Vegas Bay of Lake Mead, while drainage of the remaining 607 mi² is presumably subsurface and may drain toward Las Vegas Wash.

In the 1930's and 1940's, sewage treatment plants were …

Synthesis And Characterization Of Modified Silica Gel As An Intermediate In The Generation Of Gaseous Standard Mixtures, M. Prokopowicz, K. Lewandowska, A. Skwierawska, Andrzej Przyjazny, Jan F. Biernat, J. Namiesnik

Chemistry & Biochemistry Publications

A possibility of extending analytical applications of chemically modified silica gels is described. This involves their utilization for the generation of gaseous standard mixtures consisting of methyl chloride as the analyte and nitrogen as a carrier gas to be used for the calibration of the GC-FID system. N-methylmorpholine was chemically bonded to the propylsilylated surface of silica gel forming chloride of an appropriate immobilized compound which, under certain conditions, undergoes thermal decomposition yielding a single, volatile component (methyl chloride). Such a method of generating specific amounts of a standard substance can be used both for a single point calibration and …

Resource Law Notes Newsletter, No. 40, Spring Issue, Apr. 1997, University Of Colorado Boulder. Natural Resources Law Center

Resource Law Notes: The Newsletter of the Natural Resources Law Center (1984-2002)

No abstract provided.

Review Of Possible Health Effects Of Exposure To Residential Electric And Magnetic Fields, David W. Hafemeister

Physics

No abstract provided.

Circulation, Vol. 4, No. 3, Center For Coastal Physical Oceanography, Old Dominion University

CCPO Circulation

Spring 1997 issue of CCPO Circulation featuring article "Fostering Oceanographic Collaboration in Cameroon"

The Probe, Issue 175 – April 1997

The Probe: Newsletter of the National Animal Damage Control Association

Building a BASH Program* ("BASH stands for Bird Aircraft Strike Hazard), by Eugene LeBoeuf, Bird Strike Scientist, HQ Air Force Safety Center, Kirtland AFB, New Mexico, and President, NADCA
Video Review: Pocker Gopher Trapping by Ken Carver

More Abstracts Published at the 3rd Annual Conference of The Wildlife Society
Social and economic assessment of black bear damage in coastal North Carolina, by Robert C. Maddrey and M.R. Pelton
Options for wildlife contraception in California, by Terry M. Mansfield
Cooperative beaver management in the Riding Mountain National Park region, by Constance E.L. Menzies, Richard K Baydack, and Jack E. DuBois
Wildlife …

Water Resources Review - April 1997 Vol 10 No 1, Annis Water Resources Institute

AWRI Reviews

No abstract provided.

Isotope Ratio Studies Of Marine Mammals In Prince William Sound, Donald M. Schell, Amy Hirons

Marine & Environmental Sciences Faculty Reports

This project consists of two components: (1) provision of analytical services for the stable isotope ratio investigations associated with Exxon Valdez oil spill projects, and (2) an investigation of food web relationships and trophic interactions of harbor seals and other top consumers of Prince William Sound (PWS). Through the use of harbor seal tissues collected from native harvested animals and tagging programs, seasonal and migrational information has been obtained with regard to prey utilization and trophic status at differing locations within the sound and the adjacent Gulf of Alaska. Preliminary results indicate that within PWS, harbor seals fall at the …

Thermal Characterization Of Ground And Surface Waters At The Upjohn Company's Portage Road Manufacturing Facility, William K. Hunsberger

Masters Theses

This study focused on thermal characteristics of the ground water and recharged surface water at The Upjohn Company's (now Pharmacia and Upjohn) Portage Road manufacturing facility. Major objectives were: (a) a compilation and graphical evaluation of historical lower aquifer ground water temperatures; (b) estimates of thermal energy introduced into the ground water system through recharge from Upjohn Pond, and predictions of future production well discharge temperatures; (c) an evaluation of hydraulic conductivity related to changes in water density and viscosity influenced by variable temperature; and (d) the stratigraphy beneath Upjohn Pond.

Records reveal increasing ground water temperatures through time in …

The Eldorado Landfill: A Case Study, Heather A. Nash

UNLV Theses, Dissertations, Professional Papers, and Capstones

In 1995, Boulder City bought from the federal government 167 square miles of land in the Eldorado Valley which is located approximately seven miles west of the city. Soon afterward, the current landfill in Boulder City began accepting construction waste from Las Vegas. The large dump trucks had to travel through Boulder City on route to the landfill. In doing this they passed through three school zones and residential areas. When residents began complaining about the trucks, the Boulder City City Council began investigating various ways to solve the problem. The solution they adopted was to construct a new landfill …

Reconstruction Of Wetland Hydrology Dynamics Using Tree Rings, Allan P. Hascall Iii

Dissertations

Increment core samples were collected and examined to test the hypothesis that the history of punctuated or intermediate-term changes in wetland soil-moisture conditions can be reconstructed from the annual growth-ring record of trees. The hypothesis is based on plant physiological principles that indicate a relationship between water surplus stress and impaired physiological activity that could lead to reduced growth.

Sampling sites were selected for their ostensible historic hydrologic variability and the availability of documentation of hydrologic disturbances. A conceptual model was developed by which trees were sampled along a hydrotopographic gradient for comparison of radial stem growth in uplands versus …

Temporal Flocking And Cacophony Simulating Agent Communication In A Noisy Environment, Jessica R. Crawford

Honors Theses

Realistic communication is one of the most difficult aspects of simulating group behavior because the patterns produced by group communication are complex and not easily definable. In this paper, we present a model, developed using artificial life methodology, for creating simulations of group communication. Our model employs autonomous, artificial agents to produce emergent group behavior that resembles the communication patterns of a group, specifically, a flock of birds. Each agent collects information about its environment and its neighbors and follows a set of rules designed to meet both group goals and individual agent goals. Because we seek to establish emergent …

Acid Mine Drainage And Its Effects On Salamander Assemblages In Cumberland Plateau Streams Of The North Chickamauga Creek Watershed, Tennessee, Melissa Combs

Honors Theses

In Appalachia's coal mining regions, acid mine drainage (AMD) has contributed to the widespread degradation of stream ecosystems. Salamanders are common inhabitants of healthy headwater streams and because of their permeable skins are excellent indicators of ecosystem intergrity. Hence, we investigated the potential effects of AMD on the species richness and relative abundance of aquatic salamanders in selected stream reaches (sites) of the North Chickamauga Creek (NCC) system, Tennessee. Specimens were collected by kick-net sampling with a 500um mesh dip net and/or electroshocking at four AMD-impacted sites (pH< 5.6) and two reference sites pH> 6.2), May-July 1996. Species richness was similarly low at reference sites, 2 …

Ichthyofaunal And Habitat Associations Of Distinct Populations Of Southern Redbelly Dace, Phoxinus Erythrogaster (Teliostei: Cyprinidae) In Mississippi, Martin O'Connell

Earth and Environmental Sciences Faculty Publications

Twenty-two field sites in W-central Mississippi were surveyed for southern red- belly dace Phoxinus erythrogaster to characterize habitat and ichthyofaunal associations of these 'endangered' disjunct populations. Phoxinus erythrogaster occurred at only six sites. Data assessed similarity among all sites and described microhabitat associations of P erythro- gaster. Five species, including Semotilus atromaculatus, Campostoma anomalum, Etheostoma whipplei, P erythrogaster and Pimephales notatus, comprised 95% of the total number of in- dividuals collected at P erythrogaster sites. Standardized abundance (number per seine haul) for S. atromaculatus was consistently high among all P erythrogaster sites, whereas standard- ized abundance for C. anomalum, P …

Development Of Solid Phase Microextraction Methods For Contraband Drugs, Vangielynn Cruz Tersol

Chemistry & Biochemistry Theses & Dissertations

The objective of this study is to develop analytical methods for studying contraband drugs at nanogram levels and to demonstrate the utility of the methods. A method which combines solid phase microextraction with ion mobility spectrometry (SPME-IMS) was developed. The SPME-IMS method was used as a rapid screening tool in studying the chemistry of cocaine HCI, heroin HCI, and heroin freebase on surfaces. The total time for sample preparation, reaction, and analysis is approximately seven minutes. Another method that was developed is one that combines solid phase microextraction with gas chromatography (SPME-GC) for the quantitative analysis of cocaine freebase and …

Carrion Seeking In Brown Tree Snakes: Importance Of Olfactory And Visual Cues, John A. Shivik, Larry Clark

United States Department of Agriculture Wildlife Services: Staff Publications

We performed field experiments to examine brown tree snake (Boiga irregularis) attraction to carrion. These snakes were attracted to carrion and entered traps baited with dead mice as readily as traps baited with live mice. Using the cues arising from both live and dead prey, we examined the relative importance of visual and chemical cues to brown tree snakes. With carrion lures, chemical cues alone were sufficient for attracting and capturing snakes, but with live prey lures visual cues were required to attract and capture brown tree snakes. Our study presents the first experimental field evidence showing carrion …

Thermal Studies Of Complex Formations Of First Row Transition Metals With Phenolic Compounds In Aqueous Solution, Nabil Adnan Amro

Masters Theses

The coordination chemistry of protocatechuic acid and catechols with the first row of transition metals was studied as a model for the more complicated natural humic substance.

The reaction between Mn²⁺, Fe³⁺, Co²⁺, Ni²⁺, Cu²⁺, Zn²⁺ and the phenols, catechol and protocatechuic acid in aqueous solution was studied by the spectrophotometric method. The composition of the complexes formed was determined by continuous variation, iso-molar series and molar ratio methods. The presence of complexes with metal:ligand ratio of 1:1, 1:2 and 1:3 was established in the pH range 3 to …

Analysis Of Organic Nitrates In Artic Outflow, Deanna Elyea-Piper

Masters Theses

The Arctic Outflow Study (AOS) was a project funded by the National Science Foundation to assess the impact of tropospheric ozone concentrations by the measurement of oxidized nitrogen. Measurements of arctic outflow were made to assess the seasonal cycle of compounds in arctic air and the partitioning of NOy during transport to the North Atlantic region. These photochemically active compounds are elevated in the arctic during the winter and spring because of the lack of photochemical processes to destroy them.

Measurements of PAN, Alkyl nitrates, NOy, NO, NO₂, CO, HNO₃, O₃, and particulate nitrate …

Influence Of Physics On The Distribution Of Ichthyoplankton Across The Chesapeake Bay Plume, Christian S. Reiss

OES Theses and Dissertations

Most marine fish have retained pelagic larval stages that are spawned away from juvenile habitats. Physical and biological processes on a number of scales may affect larval survival. Mesoscale features like estuarine or riverine plumes and fronts are thought to affect larval survival by transporting larvae to juvenile habitats or by retaining larvae in favorable developmental habitats. It is likely that these features are major contributors in the regulation of shelf-spawned estuarine-dependent taxa.

This study examined how physical oceanographic features affected the spatial distribution of ichthyoplankton across the Chesapeake Bay Plume. Larval surveys were conducted across the shelf and within …

Ecology Of The Early Life History Of The Caribbean Spiny Lobster, Panulirus Argus: Recruitment, Predation, And Habitat Requirements, Charles A. Acosta

Biological Sciences Theses & Dissertations

Recruitment variability of the early life history stages of marine benthic organisms can have profound consequences on population dynamics. I studied factors affecting recruitment success of postlarvae and early juveniles of the Caribbean spiny lobster. I examined patterns in postlarval supply, investigated wind forcing as a potential transport mechanism for recruiting postlarvae, and quantified predation on postlarvae in south Florida, USA. In an eight-year time series, spiny lobster postlarval supply occurred year-round between the new and first quarter lunar phases. The major annual peak occurred around March corresponding to spawning activity ten months earlier, and a smaller non-seasonal peak occurred …

Microzooplankton Dynamics In Lower Chesapeake Bay And Its Major Tributaries, Gyung Soo Park

Biological Sciences Theses & Dissertations

This study identified the temporal and spatial variability of microzooplankton density and biomass at 14 stations located within Chesapeake Bay and four rivers. Microzooplankton are defined as those heterotrophic organisms which range from 20 to 200 $\mu$m in size, and in this study were mainly composed of copepod nauplii, rotifers, and ciliates. Ciliates were the most abundant microzooplankton, comprising more than 90% of the total density, with copepod nauplii representing approximately 50% of the total microzooplankton biomass (carbon content). Rotifers contributed less than 5% for both density and biomass of the total microzooplankton.

Maximum ciliate abundance occurred from spring to …

Results Of The City Of Tampa Surface Water Compliance Monitoring Program For The Year 1996 And Examination Of Long-Term Water Quality And Biological Indicator Trends In Hillsborough Bay, City Of Tampa Department Of Sanitary Sewers

Reports

This report is submitted to the Florida Department of Environmental Protection (FDEP) to satisfy the requirements set forth in specific condition No. 14 of the Howard F. Curren WWTP permit No. D029-184532B. The report is based on data obtained by the City of Tampa (COT) compliance water quality monitoring program approved under construction permit DC29-152799. The report also includes examination of long-term trends for water quality parameters and biological indicators collected by the City of Tampa Bay Study Group and the Environmental Protection Commission of Hillsborough County (EPC).

Molecular Cloning And Functional Analysis Of Polyphosphoinositide-Dependent Phospholipase D, Pldβ, From Arabidopsis, Kirk Pappan, Wensheng Qin, Jim Dyer, Ling Zheng, Xuemin Wang

Department of Chemistry and Biochemistry Faculty Scholarship and Creative Works

A novel plant phospholipase D (PLD; EC 3.1.4.4) activity, which is dependent on phosphatidylinositol 4,5-bisphosphate (PIP2) and nanomolar concentrations of calcium, has been identified in Arabidopsis. This report describes the cloning, expression, and characterization of an Arabidopsis cDNA that encodes this PLD. We have designated names of PLDβ for this PIP2- dependent PLD and PLDα for the previously characterized PIP2-independent PLD that requires millimolar Ca2+ for optimal activity. The PLDβ cDNA contains an open reading frame of 2904 nucleotides coding for a 968-amino acid protein of 108,575 daltons. Expression of this PLDβ cDNA clone in Escherichia coli results in the …

Risk Assessment And Sustainable Development: Towards A Concept Of Sustainable Risk, Michael D. Mehta

RISK: Health, Safety & Environment (1990-2002)

Dr. Mehta examines two dominant approaches for managing health and environmental risks and suggests that they would better serve if integrated.

Effects Of Ghost Crab (Ocypode Quadrata) Invasion On Loggerhead Sea Turtle (Caretta Caretta) Nests At Hillsboro Beach, Florida, Terri S. Schmidt, Curtis M. Burney

Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures

No abstract provided.

Wetland Loss In The Northern Gulf Of Mexico: Multiple Working Hypotheses, R. Eugene Turner

Faculty Publications

I examined four hypotheses about causes for the dramatically high coastal wetland losses (0.86% yr−1) in the northern Gulf of Mexico: an extensive dredged canal and spoil bank network, a decline in sediments in the Mississippi River during the 1950s, Mississippi River navigation and flood protection levees, and salinity changes. Natural factors contributing to these habitat changes include eustatic sea-level rise and geological compaction, which appear to have remained relatively constant this century, although variation does occur. These four hypotheses were tested using data on land-to-water changes in 15-min quadrangle maps inventoried for four intervals between the 1930s and 1990. …

The Prairie Naturalist Volume 29, No.1. March 1997

The Prairie Naturalist

UPDATED DISTRIBUTION OF THE LEAST WEASEL ON THE CENTRAL GREAT PLAINS ▪ S. R. Hoofer and J. R. Choate

ESTIMATING SURVIVAL OF SONG BIRD CARCASSES IN CROPS AND WOODLOTS ▪ G. M. Linz, D. L. Bergman, and W. J. Bleier

SEXUAL ALLOCATION IN Carex stricta, A MONOECIOUS, TUSSOCK-FORMING SEDGE ▪ D. M. Estrella and C. E. Umbanhowar, Jr.

ABUNDANCE OF THIRTEEN-LINED GROUND SQUIRRELS IN SHORTGRASS PRAIRIE ▪ L. C. Higgins and P. Stapp

BATS OF JEWEL CAVE NATIONAL MONUMENT, SOUTH DAKOTA ▪ J. R. Choate and J. M. Anderson

NOTES

Northern Harrier Builds Nest On Top Of Depredated Mallard …

Quantification Of Weather Effects On Imaging Laser Radar, Clifton D. Stargardt

Theses and Dissertations

The Air Force is investigating the use of imaging laser radar systems as autonomous guidance systems on future precision guided munitions. The Air Force's Wright Laboratory is currently testing a 1.06 micron wavelength laser radar (ladar) at Eglin Air Force Base. Since laser radiation can be susceptible to propagation problems through weather, quantitative understanding of these effects is important to the development of this weapon system. Ladar image degradation, in the form of target dropouts and false returns, was evaluated in various weather conditions. Statistical analysis of the images presented expected degrees of degradation according to visibility and rain fall …

Of Periods, Quasiperiods, Repetitions And Covers, Alberto Apostolico, Dany Breslauer

Department of Computer Science Technical Reports

No abstract provided.