Physical Sciences and Mathematics Commons^™

Estimating Relative Abundance Of Young Of Year American Eel, Anguilla Rostrata, In The Virginia Tributaries Of Chesapeake Bay. Final Report (2003 Reporting Year), Marcel M. Montane, Hank Brooks, Wendy A. Lowery, Aimee D. Halvorson

Reports

The Atlantic States Marine Fisheries Commission (ASMFC) adopted the Interstate Fishery Management Plan (hereafter referred to as FMP) for the American Eel in November 1999. The FMP focuses on increasing the state’s efforts to collect data on the resource and the fishery it supports through both fishery-dependent and fishery-independent studies. To this end, member jurisdictions (including Virginia) agreed to implement an annual abundance survey for young of year (YOY) American eels. The survey is intended to “…characterize trends in annual recruitment of the young of year eels over time [to produce a] qualitative appraisal of the annual recruitment of American …

The Virginia Wetlands Report Vol. 19, No. 2, Virginia Institute Of Marine Science

Virginia Wetlands Reports

• Dunlin (Calidris alpina) Julie Bradshaw
• Snakehead Invades Potomac River
• Celebrating a Wetland Wildflower: Seashore Mallow Karen Duhring
• Preserving The Bay’s Living Shorelines: A Growing Grass-roots Effort. Karen Duhring
• New & Interesting Web Sites

Northampton County Dune Inventory, C. Scott Hardaway Jr., Donna A. Milligan, Lyle M. Varnell, George R. Thomas, Walter L. Priest, Linda M. Meneghini, Thomas A. Barnard, Christine Wilcox

Reports

Northampton County is located on the Eastern Shore of Virginia (Figure 1). Only dune sites on Chesapeake Bay were analyzed. A total of 30 dune sites were identified along Northampton’s shoreline (Figure 2). It is the intent of this publication to provide the user with information on the status of dunes in Northampton County. This information comes from research performed in 1999 and 2000 which was presented in a report entitled “Chesapeake Bay Dune Systems: Evolution and Status (Hardaway et al., 2001). Although somewhat dated, the information provides a short historical perspective of the state of each site at the …

City Of Norfolk Dune Inventory, C. Scott Hardaway Jr., Donna A. Milligan, Lyle M. Varnell, George R. Thomas, Walter L. Priest, Linda M. Meneghini, Thomas A. Barnard, Christine Wilcox

Reports

City of Norfolk, Virginia is located on the southern shore of Chesapeake Bay (Figure 1). Thirteen dune sites were identified along it’s Chesapeake Bay shore from Little Creek Inlet to Willoughby Spit (Figure 2). It is the intent of this publication to provide the user with information on the status of dunes in City of Norfolk. This information comes from research performed in 1999 and 2000 which was presented in a report entitled “Chesapeake Bay Dune Systems: Evolution and Status (Hardaway et al., 2001). Although somewhat dated, the information provides a short historical perspective of the state of each site …

Letter To William A. Pruitt, Commissioner, Virginia Marine Resources Commission, Re: King William Reservoir-Mattaponia River Fisheries Impact Assessment And Mitigation Report, Roger L. Mann

Reports

No abstract provided.

Lancaster County Dune Inventory, C. Scott Hardaway Jr., Donna A. Milligan, Lyle M. Varnell, George R. Thomas, Walter L. Priest, Linda M. Meneghini, Thomas A. Barnard, Christine Wilcox

Reports

Lancaster County, Virginia is located at the confluence of the Rappahannock River and Chesapeake Bay (Figure 1). Most of the dunes are located along the Rappahannock River with the remainder along Chesapeake Bay. There are a total of 45 dune sites identified along the Lancaster County shoreline (Figure 2). It is the intent of this publication to provide the user with information on the status of dunes in Lancaster County. This information comes from research performed in 1999 and 2000 which was presented in a report entitled “Chesapeake Bay Dune Systems: Evolution and Status (Hardaway et al., 2001). Although somewhat …

Status Of The Major Oyster Diseases In Virginia 2003 A Summary Of The Annual Monitoring Program, Ryan Carnegie, Lisa M. Ragone Calvo, Eugene M. Burreson

Reports

Low temperatures and salinities brought abatement in the oyster diseases caused by Perkinsus marinus (Dermo) and Haplosporidium nelsoni (MSX) for the first time since 1998. In the James River, P. marinus prevalences were the lowest they had been since 1998. In summer and fall, when P. marinus is normally most prevalent, it was found in a maximum of 72% of oysters at Wreck Shoal and in less than half the oysters at Horsehead Rock and Point of Shoals. Advanced infections were very rare. Haplosporidium nelsoni had disappeared completely from quarterly James River samples by July

Evaluating Recruitment Of American Eel, Anguilla Rostrata, To The Potomac River Spring 2004, Marcel M. Montane, Wendy A. Lowery, Hank Brooks, Aimee D. Halvorson

Reports

The Atlantic States Marine Fisheries Commission (ASMFC) adopted the Interstate Fishery Management Plan (FMP) for the American eel in November 1999. The FMP focuses on increasing the states’ efforts to collect data on the resource and the fishery it supports through both fishery dependent and fishery independent studies. To this end, member jurisdictions (including the PRFC) agreed to implement an annual abundance survey for young of year (YOY) American eels. The survey is intended to “…characterize trends in annual recruitment of young of year eels over time [to produce a] qualitative appraisal of the annual recruitment of American eel to …

Bacterial Utilization Of Transient Plankton-Derived Dissolved Organic Carbon And Nitrogen Inputs In Surface Ocean Waters, J Cherrier, Je Bauer

VIMS Articles

The majority of bacterial growth and respiration in the upper ocean is thought to result from coupling between microheterotrophic populations and the reactive soluble components of planktonic primary and secondary production. However, we know little about the potential turnover of these components and the concomitant growth of bacteria under conditions of intermittent or transient inputs of natural dissolved organic matter (DOM) compared to quasi-steady state, low DOM conditions. The present study evaluated the short-term (similar to3 d) rates and net extents of utilization (as measured losses) of selected constituents of plankton-derived DOM (DOMPD) by indigenous bacterioplankton populations in eastern North …

Monitoring Relative Abundance Of American Shad In Virginia’S Rivers 2003 Annual Report, John E. Olney

Reports

Concern about the decline in landings of American shad (Alosa sapidissima) along the Atlantic coast prompted the development of an interstate fisheries management plan (FMP) under the auspices of the Atlantic States Marine Fisheries Management Program (AS

High Rates Of Ammonium Recycling Drive Phytoplankton Productivity In The Offshore Mississippi River Plume, B Wawrik, Jh Paul, Da Bronk, Et Al

VIMS Articles

As part of an integrated study of the regulation of carbon fixation in the offshore Mississippi River plume, we measured the rates of N-15-labeled ammonium and nitrate uptake in the surface plume waters from offshore to nearshore along the plume axis towards the Mississippi Delta. Concentrations of nitrate in the plume ranged from 0.19 to 2.5 muM with the highest concentrations primarily in the shoreward stations, while ammonium ranged from 0.17 to 0.44 muM, showing little spatial variability. Rates of ammonium uptake ranged from 16.5 to 260 nM h(-1), and showed a strong trend of increasing values from offshore towards …

The Crest, Spring 2004, Virginia Institute Of Marine Science

Reports

Table of Contents:

• VIMS dedicates Kauffman Center
• Ocean report bolsters VIMS agenda
• Mann urges Congress to enact ballast water standard
• Graves receives faculty award
• Study supports UN Dead Zone report
• Marine trades will pay for training
• Researchers link beach erosion to ice-age channels
• Recovered tag provides data windfall
• Heritage tourism workshop draws local businesses
• Pair contribute to Science article on ocean fertilization
• VIMS launches data buoy
• Hale takes PBDE research to the air
• VIMS finds pathogen in non-native oyster
• Study reveals drop in SAV
• NOAA honors VIMS alumnus
• Musick celebrates 35th Roanoke round-up
• Assembly names Library for Hargis
• VIMS honors …

Tangier Island, Virginia Shoreline Management Plan For The West Coast Of The Uppards, C. Scott Hardaway Jr.

Reports

Utilizing geo-rectified aerial photography from 1938, 1960, 1987, and 2001, shoreline change rates were determined along the Uppards. Shoreline change rates vary but are all erosional except for areas around the north end where sand bars come and go. In the area of concern between baseline stations 4000 and 4600, the rates of erosion have increased with time. Using the rate calculated from the 1938 to 2001 shorelines for station 4000, 16 ft/yr, the 400 ft marsh isthmus width between the shoreline and Toms Gut would breach in about 25 years. This would essentially break the Uppards in two and …

The Virginia Wetlands Report Vol. 19, No. 1, Virginia Institute Of Marine Science

Virginia Wetlands Reports

• Alligators Abound! Alligator Farming in America Pam Mason
• Hooded Merganser (Lophodytes cucullatus) Julie Bradshaw
• Workshop for Coastal Managers Planned for May 19-20, 2004 Marcia Berman
• Annual Summary of Permitted Tidal Wetland Impacts – 2003. Karen Duhring
• Tidal Wetland Mitigation Banking Coming to Virginia Waters. Tom Barnard

Chaos-Induced Pulse Trains In The Ionization Of Hydrogen, K. A. Mitchell, J. P. Handley, B. Tighe, A. Flower, John B. Delos

Arts & Sciences Articles

We predict that a hydrogen atom in parallel electric and magnetic fields, excited by a short laser pulse to an energy above the classical saddle, ionizes via a train of electron pulses. These pulses are a consequence of classical chaos induced by the magnetic field. We connect the structure of this pulse train (e.g., pulse size and spacing) to fractal structure in the classical dynamics. This structure displays a weak self-similarity, which we call “epistrophic self-similarity.” We demonstrate how this self-similarity is reflected in the pulse train.

2004 Gloucester Point Station Tide Prediction Calendars, Virginia Institute Of Marine Science, David A. Evans

Miscellaneous

These calendars are produced monthly using David Evans' Tidecal.

2004 Hampton Roads Station Tide Prediction Calendars, Virginia Institute Of Marine Science, David A. Evans

Miscellaneous

These calendars are produced monthly using David Evans' Tidecal.

2004 Chesapeake Bay Bridge Tunnel Station Tide Prediction Calendars, Virginia Institute Of Marine Science, David A. Evans

Miscellaneous

These calendars are produced monthly using David Evans' Tidecal.

Dedication Of The William Jennings Hargis, Jr. Library, Virginia Institute Of Marine Science, College Of William And Mary

Miscellaneous

No abstract provided.

2004 Wachapreague Station Tide Prediction Calendars, Virginia Institute Of Marine Science, David A. Evans

Miscellaneous

These calendars are produced monthly using David Evans' Tidecal.

Assessing Sources And Ages Of Organic Matter Supporting River And Estuarine Bacterial Production: A Multiple-Isotope (D14c, D13c, And D15n) Approach, S. Leigh Mccallister, James E. Bauer, J Cherrier, Hugh W. Ducklow

VIMS Articles

We used radiocarbon (D14C) and stable isotopic (d13C, d15N) signatures of bacterial nucleic acids to estimate the sources and ages of organic matter (OM) assimilated by bacteria in the Hudson River and York River estuary. Dualisotope plots of D14C and d13C coupled with a three-source mixing model resolved the major OM sources supporting bacterial biomass production (BBP). However, overlap in the stable isotopic (d13C and d15N) values of potential source end members (i.e., terrestrial, freshwater phytoplankton, and marsh-derived) prohibited unequivocal source assignments for certain samples. In freshwater regions of the York, terrigenous material of relatively recent origin (i.e., decadal in …

Can We Predict Joint Effects Of Hypoxia And Metals On Fish Survival?, Michael C. Newman

VIMS Books and Book Chapters

Fish are suddenly exposed to hypoxic conditions during diverse events such as seiche- or turnover-related water movements, bottom water release from reservoirs, ice-over of eutrophic arctic lakes, and rapid shifts in respiration: photosynthesis associated with cultural eutrophication. In each case, chemical equilibria established under hypoxic conditions that result in metal dissolution and accumulation suddenly shift toward chemical equilibria of oxic conditions. Critical changes in speciation include those determining the free ion activity that, as expressed by the Free Ion Activity Model (FIAM), is often the most bioactive form of a dissolved metal. Metal phase can also change rapidly and, in …

Evaluating Restored Oyster Reefs In Chesapeake Bay: How Habitat Structure Influences Ecological Function, Janet A. Nestlerode

Dissertations, Theses, and Masters Projects

A shortage of shell resources for restoring reefs of the Eastern oyster, Crassostrea virginica, has led to widespread use of substitute materials. The effectiveness of such alternative substrates as habitat for reef-associated fauna other than oysters is largely unresolved. I investigated the habitat value of oyster shell, surf clam (Spisula solidissima) shell, and pelletized coal ash reefs for benthic and nektonic communities. Oyster recruitment, survival, and growth were monitored on reefs of oyster and surf clam shell near the mouth of Chesapeake Bay and York River, USA. Oyster shell supported greater oyster growth and survival and offered the highest degree …

Complex Inner Shelf Environments: Observations And Modeling Of Morphodynamics And Scour Processes, Arthur C. Trembanis

Dissertations, Theses, and Masters Projects

The inner continental shelf is a complex environmental system marked by sharp variations in bed roughness. Such heterogeneous systems account for 80% of the non-rocky inner shelves worldwide. Interactions among forces (waves, tides, turbulence, and bioturbation) and roughness elements (bed forms, rocks, and anthropogenic objects) exert major controls on sedimentary processes. This study attempts to advance the knowledge and understanding of the morphodynamics of the inner shelf. This study investigates scour and morphodynamic processes at Tairua, New Zealand; Cedar Island, Virginia; Indian Rocks Beach, Florida; and Beaufort Inlet, North Carolina. Using data from the field, the study develops new conceptual …

Pathobiology Of Mycobacteria In Striped Bass (Morone Saxatilis), David T. Gauthier

Dissertations, Theses, and Masters Projects

Striped bass (Morone saxatilis) in Chesapeake Bay, USA, are experiencing an epizootic of mycobacteriosis. This disease, caused by bacteria in the genus Mycobacterium, causes granulomatous lesions of the skin and viscera. Diseased fish are often emaciated, and fish with skin lesions may be significantly disfigured. The overall goal of this work was to examine aspects of the pathobiology of mycobacteria in striped bass via laboratory exposure studies and cellular assays. Striped bass were injected intraperitoneally with a sublethal dose of Mycobacterium marinum, M. shottsii, or M. gordonae and sampled for histology and bacteriology at regular intervals to 45 weeks post-injection …

On Certain Sets Of Matrices: Euclidean Squared Distance Matrices, Ray-Nonsingular Matrices And Matrices Generated By Reflections, Thomas W. Milligan

Dissertations, Theses, and Masters Projects

In this dissertation, we study three different sets of matrices. First, we consider Euclidean distance squared matrices. Given n points in Euclidean space, we construct an n x n Euclidean squared distance matrix by assigning to each entry the square of the pairwise interpoint Euclidean distance. The study of distance matrices is useful in computational chemistry and structural molecular biology. The purpose of the first part of the thesis is to better understand this set of matrices and its different characterizations so that a number of open problems might be answered and known results improved. We look at geometrical properties …

Measurement Of The Branching Fraction For Neutral Kaon(Long) Decaying To Muon-Electron-Positron, Andrew J. Norman

Dissertations, Theses, and Masters Projects

This dissertation describes the measurement of the decay of the long lived neutral kaon into two muons and two electrons. The measurement was performed using the data taken during experiment E871 which was performed on the B5 beamline at the Alternating Gradient Synchrotron (AGS) of the Brookhaven National Laboratory (BNL). The branching ratio B( K0L → mu+mu-e +e-) is sensitive to the absorptive portion of the long distance amplitude for decays of the form K0L → ℓ+ℓ- and can be used to properly extract the short distance weak interaction amplitudes from the dileptonic events.;Measurement of K0L → mu+mu-e +e- additionally …

Dynamic Adaptation To Cpu And Memory Load In Scientific Applications, Richard Tran Mills

Dissertations, Theses, and Masters Projects

As commodity computers and networking technologies have become faster and more affordable, fairly capable machines have become nearly ubiquitous while the effective "distance" between them has decreased as network connectivity and capacity has multiplied. There is considerable interest in developing means to readily access such vast amounts of computing power to solve scientific problems, but the complexity of these modern computing environments pose problems for conventional computer codes designed to run on a static, homogeneous set of resources. One source of problems is the heterogeneity that is naturally present in these settings. More problematic is the competition that arises between …

Development Of The Maryland Shoreline Inventory Methods And Guidelines For Baltimore County And The City Of Baltimore, Alayde Barbosa, Marcia Berman, Harry Berquist, Sharon Dewing, Carl Hershner, Helen Rea, Tamia Rudnicky, Daniel E. Schatt, David Weiss, Helen Woods

Reports

No abstract provided.

Development Of The Maryland Shoreline Inventory Methods And Guidelines For Caroline County, Marcia Berman, Harry Berquist, Sharon Dewing, Carl Hershner, Helen Rea, Tamia Rudnicky, Daniel E. Schatt, David Weiss, Helen Woods

Reports

No abstract provided.