Physical Sciences and Mathematics Commons^™

Dissolved Oxygen Conditions In The Machipongo River System Near Willis Wharf, Va, Bruce Neilson, Nancy Wilson

Reports

Water temperature, salinity, and dissolved oxygen concentrations were monitored at two sites in the Machipongo River system in early summer of 1989 and late summer of 1990. The two study sites have been designated as "Willis Wharf" and "Quinby." The Machipongo River system and the two sampling locations are shown in Figure 1.

Stock Identification Of Weakfish, Cynoscion Regalis, By Discriminant Function Analysis Of Morphometric Characters, Daniel R. Scoles

Dissertations, Theses, and Masters Projects

No abstract provided.

Determination Of Macrophage Chemiluminescent Response In Fundulus Heteroclitus As A Function Of Pollution And Temperature Stress, Karen Kelly Reay

Dissertations, Theses, and Masters Projects

No abstract provided.

Beach Forms Induced By Coastal Structures Forming Embayments In Fetch-Limited Environments, Jian Hua Li

Dissertations, Theses, and Masters Projects

No abstract provided.

A Numerical Model Study Of Estuarine Residual Circulation And Stratification Variations During Spring-Neap Tidal Cycles, San Jin

Dissertations, Theses, and Masters Projects

No abstract provided.

Cross-Shore And Longshore Sediment Size Distribution On Southern Currituck Spit, North Carolina, Lauro Julio Calliari

Dissertations, Theses, and Masters Projects

Using Q-mode factor analysis, 87 surficial sediment samples collected from Duck and Whalehead beach, North Carolina, were analyzed using the weight percent of the gravel and sand fraction subdivided at 0.5 phi class interval as variables. An additional data set composed of 178 surficial sediment samples from Duck beach (bimodal) and Coquina beach (unimodal fine) representing three years of sampling at monthly intervals were analyzed by the same technique using only the sand fraction. The spatial and temporal patterns of sediment factor groups support three main inferences. (1) Bimodal beaches display a more distinct sediment zonation than unimodal beaches. (2) …

Atmospheric Input Of Polycyclic Aromatic Hydrocarbons To The Sea Surface Microlayer, Lino J. Gallo

Dissertations, Theses, and Masters Projects

Atmospheric input of polycyclic aromatic hydrocarbons (PAH) to water was studied and the effects of sea surface microlayer (SSM) determined. The York River system and the Perrin River areas were monitored with a drum skimmer and a high volume air sampler. Experiments were conducted in the laboratory under controlled conditions. The SSM extracted vapor phase PAH of low molecular weight from the air, and there, aromatic compounds went from dissolved into particulate phase very rapidly. Water covered with a natural SSM received much less atmospheric input of PAH than water without SSM in a given period of time. Henry's law …

Inner Continental Shelf Benthic Boundary Layer Dynamics And Suspended Sediment Transport, Sung Chan Kim

Dissertations, Theses, and Masters Projects

An experiment conducted over the shoreface at Duck, North Carolina in 1985 embraced both fair-weather low energy and storm-related high energy conditions. to differentiate the diffusion and advection processes of suspended sediments under the high energy conditions from those under the low energy conditions, numerical modeling and the analysis of field data are exercised. A simple two-layer eddy viscosity wave-current combined boundary layer model is developed. The modeled characteristics of the boundary layer are incorporated with a diffusion equation to give suspended sediment concentration profiles. A velocity scale related to factors other than turbulent diffusion is formulated, representing the diffusion …

Comparative Community Structure Of Surf-Zone Fishes In The Chesapeake Bight And Southern Brazil, Cassiano Monteiro-Neto

Dissertations, Theses, and Masters Projects

The structure of surf-zone fish communities at Cassino (western South Atlantic, WSA) and the Chesapeake Bight (western North Atlantic, WNA) is described using historical beach seine data, to examine similarities between geographically isolated fish communities. Numerical classification, ANCOVA, Shanon-Wiener diversity and its components, and species rarefaction are used to describe fish community structure: (a) within habitat (Cassino); (b) within region (Chesapeake Bight); (c) within the western Atlantic (comparison between Cassino and the Chesapeake Bight). The surf-zone fish community at Cassino had a low diversity and was dominated by a few species. Seasonal periods identified by cluster analysis correlated well with …

Aqueous Solubility Of Liquid Hydrocarbon Mixtures Containing Dissolved Solid Components, George G. Vadas

Dissertations, Theses, and Masters Projects

No abstract provided.

Growth Rate And Grazing Dynamics Of Coccoid Cyanobacteria In The Lower Chesapeake Bay, Carol J. Falkenhayn

Dissertations, Theses, and Masters Projects

No abstract provided.

Nitrogen Processing In The York River Estuary, Va: Spatial And Temporal Patterns Of Nitrification, Lori Jedlica Morris

Dissertations, Theses, and Masters Projects

No abstract provided.

The Gametogenic Cycle Of Placopecten Magellanicus (Gmelin) In The Mid-Atlantic Bight, Anne Catherine Schmitzer

Dissertations, Theses, and Masters Projects

No abstract provided.

A Dynamic Failure Model For Performing Propagation And Infection Analysis On Computer Programs, Jeffrey Mark Voas

Dissertations, Theses, and Masters Projects

This thesis introduces a methodology for determining program locations where faults can easily hide. It is a program structure-based model that analyzes program flow both statically and dynamically; each program location is analyzed relative to its preceding locations and succeeding locations. A statistical model termed propagation analysis studies the relation between incorrect internal data states and their affect on the output. Infection analysis is a statistically model which studies the relation between classes of faults and internal data states. Together these two models combine to form one model of analyzing programs termed Propagation and Infection Analysis (PIA).;PIA employs aspects of …

The Diffusion Of Muonic Hydrogen Atoms In Hydrogen Gas, Guo Fu Chen

Dissertations, Theses, and Masters Projects

This experiment measured the time distribution of muonic hydrogen atoms which were formed when negative muons were brought to rest in H{dollar}\sb2{dollar} gas, containing Au target foils, at five pressures (750 mbar, 375 mbar, 188 mbar, 94 mbar and 47 mbar at 4.6 mm foil spacing). A Monte Carlo method is applied for deducing the initial velocity distribution, and preliminary results are obtained. The initial velocity distribution of {dollar}\mu{dollar}H atoms is reasonably well described as a 'Maxwellian' velocity distribution with a mean energy E = 3.4 eV. The corresponding muon mean capture energy is obtained: E{dollar}\sb{lcub}\rm c{rcub}{dollar} {dollar}\approx{dollar} 34 eV …

Solid State Effects In The Reactions Of The Meta And Pura Trifluorodiazomethane/Beta-Cyclodextrin Inclusion Complexes, Shelley Hunnings Smith

Dissertations, Theses, and Masters Projects

No abstract provided.

The Imidization Of Pmr-15 Aromatic Thermosetting Polyimide, Thomas Clifton Prettyman

Dissertations, Theses, and Masters Projects

No abstract provided.

Knowledge-Based System For Flight Information Management, Wendell R. Ricks

Dissertations, Theses, and Masters Projects

No abstract provided.

The Preparation Of And Upper Atmospheric Effects On Kevlar Films, Patricia Lynne Pate

Dissertations, Theses, and Masters Projects

No abstract provided.

A Mark-Recapture Study Of Striped Bass In The James River, Virginia : Annual Report 1989, Joseph G. Loesch, Bruce W. Hill

Reports

No abstract provided.

Benthic Habitat Mapping For Living Resources, Robert J. Diaz, Paul Gapcynski, Virginia Institute Of Marine Science

Reports

Much of the development activity in Chesapeake Bay involves modification to subtidal bottoms. . . .

Oyster Spatfall In Virginia Rivers: 1989 Annual Summary, Bruce J. Barber

Reports

The Virginia Institute of Marine Science (VIMS) conducts surveys of oyster spatfall (or "setting") in Virginia waters throughout the summer reproductive period. This survey provides an estimate of the potential of a particular area for receiving a "strike 11 or set of oysters on the bottom and helps define the timing of setting events. Information obtained by this effort is valuable to the Virginia Marine Resources Commission (VMRC) for its shell repletion program, and to private oyster growers, both of whom are interested in maximizing the timing of shell planting. To assist in that area, a biweekly report of spatfall …

Geotechnical Evaluation Of Sand Resources On The Inner Shelf Of Southern Virginia : Final Report To The City Of Virginia Beach, Suzette M. Kimball, James K. Dame

Reports

The Coastal Erosion Abatement Commission, in its report to the General Assembly (1979), recommended that "there is a need to locate sources of sand supplies for rebuilding public beaches." The Sand Resources Inventory, completed in 1982 by the College of William and Mary, Virginia Institute of Marine Science, was initiated in response to this directive. The Sand Resources Inventory, however, focused on the Chesapeake Bay. The City of Virginia Beach, facing a chronic need to renourish beaches facing the Atlantic Ocean, elected to develop an inventory of beach-quality sand reserves existing on the inner shelf of the Atlantic coast. This …

Wetlands Mitigation Evaluation Vegetation Studies : Final Report To The City Of Norfolk, Walter I. Priest Iii

Reports

Coastal wetlands in Virginia represent a finite resource which is being
subjected to ever increasing development pressures. As a means of reducing
these losses while accomodating necessary economic development, the policy
of wetlands mitigation through compensation is increasingly being utilized
by both regulatory agencies and developers. This practice generally
involves the grading of an upland area to the appropriate elevation and
planting it with wetlands vegetation to replace a mar sh being lost in
another area.

The technology to plant and grow marsh vegetation for this and other
purposes has been well demonstrated . In as few as two growing …

A Mark-Recapture Study Of Striped Bass In The James River, Virginia : Annual Report 1988, Joseph G. Loesch, Bruce W. Hill

Reports

EXECUTIVE SUMMARY

1. In the Spring 1988, 2,145 striped bass were tagged in the James River.

2. The mean size of striped bass tagged in 1988 (351.6 mm) was 117.9 mm smaller than mean size in 1987. The difference may be due to different locations and times of tagging.

3. The dominant age group in 1987 was the 1982 year class but in 1988 the dominant age group was the 1984 year class. This difference may also be accounted for by different locations and times of tagging.

4. The exodus of the mature fish out of the river after spawning …

James River Seed Oyster Bed Project : Physical Data Report, I, 1984-1987, D. Hepworth

Reports

No abstract provided.

Hypoxia In The Lower Rappahannock Estuary, Albert Y. Kuo, Mohamed Z. Moustafa

Reports

There are several objectives to this study. The immediate objective is to collect a comprehensive and consistent set of field observations to better describe the hypoxic condition in the Rappahannock River. Other objectives can be classified as short and long term goals.

Long term: (1) Identify and quantify the processes contributing to the dissolved oxygen budget in deep waters, and explain the variabilities among the three Virginia major tributary estuaries. (2) Provide information for resource management so that the James River can be protected from hypoxic problems and, perhaps, the problems in the York and Rappahannock Rivers can be alleviated. …

Determination Of Marina Buffer Zones Using Simple Mixing And Transport Models : A Report To The Virginia State Dept. Of Health, Bureau Of Shellfish Sanitation As Part Of The Chesapeake Bay Initiatives Marine Pollution Abatement Initiative, John M. Hamrick, Bruce J. Neilson

Reports

This report describes the rationale, development and application of simple mixing and transport models for the determination of marina buffer zones and buffer zones for other point source discharges. Included in the report are two computer programs for implementation of the most general two dimensional transport model.

Distribution Of Submerged Aquatic Vegetation In The Chesapeake Bay And Tributaries And Chincoteague Bay - 1987, R J. Orth, Adam A. Frisch, Judith F. Nowak, Ken Moore

Reports

No abstract provided.

Zinc Distributions In Sediments, The Common Mussel, Mytilus Edulis (L.), The American Oyster, Crassostrea Virginica (Gmelin), And The Commensal Pea Crab, Pinnotheres Ostreum (Say), Cheol Mo, Bruce Neilson

Reports

Oysters and mussels of varying sizes and sediment samples were collected from oyster beds with different salinity regimes of three Virginian coastal plain rivers: Rappahannock River. James River. and Piankatank River. Zinc concentrations of 1) soft tissues. gut contents. and shells of the oysters. 2) soft tissues of the mussels. 3) pea crabs. and 4) sediment samples were measured with a flame atomic absorption (Flame AA) spectrophotometer. Particulate organic carbon and nitrogen concentrations ·of the sediments were measured with a carbon-nitrogen analyzer. The contribution of extraneous materials. such as gut contents. faeces. and pea crabs. to the variability in oyster …