Physical Sciences and Mathematics Commons^™

Chemical And Toxicological Characterization Of The Lower Mobjack Bay, York River, Virginia Segment Of The Chesapeake Bay, Morris H. Roberts Jr., Mark A. Richards, Peter F. Delisle

Reports

The Chesapeake Bay segment called Lower Mobjack Bay Lower York River Virginia was found to have insufficient data to characterize in 1999. Therefore this area was selected for a chemical, toxicological, benthic community characterization study of the sediments in 2002. The segment was divided into 3 strata: the lower York River, the Poquoson River, and Back River, each with 4 randomly selected stations. Samples were collected in October 2002 for evaluation of conditions.

There were few significant chemical exceedances of the ER-L or ER-M in the three strata and no toxicologically effects from exposure to sediment samples from any stratum. …

Evaluation Of Striped Bass Stocks In Virginia, Monitoring And Tagging Studies, 1999-2003 Annual Report, 1 August 2002 - 31 August 2003, Philip W. Sadler, Robert J. Latour, Robert E. Harris, Julia Ellis, John E. Olney

Reports

This report presents the results of striped bass (Marone saxatilis) tagging and monitoring activities in Virginia during the period 1 August 2002 through 31 August 2003. It includes an assessment ofthe biological characteristics of striped bass taken from the 2003 spring spawning run, estimates of annual survival based on annual spring tagging, and the results ofthe fall2002 directed mortality study that is cooperative with the Maryland Department of Natural Resources. The information contained in this report is required by the Atlantic States Marine Fisheries Commission and is used to implement a coordinated management plan for striped bass in Virginia, and …

The Virginia Wetlands Report Vol. 18, No. 3, Virginia Institute Of Marine Science

Virginia Wetlands Reports

• Green Tree Frog Walter Priest
• Study Offers Options For Protection of Secondary Dunes
• GIS Assists in Dune Management Project Marcia Berman
• Beach Plum: Prunus maritima Pam Mason

Benthic Algae Control Sediment-Water Column Fluxes Of Organic And Inorganic Nitrogen Compounds In A Temperate Lagoon, Ac Tyler, Kj Mcglathery, Iris C. Anderson

VIMS Articles

Coastal lagoons are a common land-margin feature worldwide and function as an important filter for nutrients entering from the watershed. The shallow nature of lagoons leads to dominance by benthic autotrophs, which can regulate benthic-pelagic coupling. Here we demonstrate that both microalgae and macroalgae are important in controlling dissolved inorganic as well as organic nitrogen (DIN and DON) fluxes between the sediments and the water column. Fluxes of nitrogen (NH4+, NO3-, DON, urea, and dissolved free and combined amino acids [DFAA, DCAA]) and O-2 were measured from October 1998 through August 1999 in sediment cores collected from Hog Island Bay, …

The Crest, Fall 2003, Virginia Institute Of Marine Science

Reports

Table of Contents:

• VIMS hires new Dean and Director
• Hurricane Isabel hinders research
• VIMS acquires unique new vessel
• Pair pursue promise of proteomics
• Research questions environmental safety of flame retardant
• VIMS scientists quantify Isabel's impact on Bay
• Schaffner Elected ERF President
• ABC continues oyster work with Academy validation
• Newman wins SETAC Founders Award
• Faculty help bring minorities to marine science
• Sea Grant sponsors seafood education programs
• VIMS hosts international sediment conference
• Students chosen as Knauss Fellows
• Aquanauts visit inner space
• Study highlights link between biodiversity and ecosystem function
• CCRM kicks off trans-Atlantic collaboration

An Experimental Evaluation Of The Effects Of Scale On Oyster Reef Restoration, Mark W. Luckenbach, Paige G. Ross

Reports

We investigated the effects of spatial scale, ranging from 10’s of meters to several km’s, on the development of oyster populations and other reef-associated organisms during the early stage of reef restoration. Employing a block design, experimental reefs were constructed at four sites in the lower Rappahannock River, VA. We tested the effects of sites (scale ≈ 1 – 10 km), reef sizes (scale ≈ 100 m) and locations within reef (scale ≈ 10 m) on the settlement, survival and growth of oysters and on the abundance, biomass, species richness and diversity of developing communities utilizing the reefs.

The project …

Waterfront Development And Potential Impacts To Aquatic Habitat A Planning Tool For Evaluating Resource Sensitivity, Marcia Berman, Center For Coastal Resources Management, Virginia Institute Of Marine Science

Reports

No abstract provided.

Climatic Warming And Accompanying Changes In The Ecological Regime Of The Black Sea During 1990s, T Oguz, T Cokacar, P Malanotte-Rizzoli, Hw Ducklow

VIMS Articles

The Black Sea ecosystem is shown to experience abrupt shifts in its all trophic levels from primary producers to apex predators in 1995 - 1996. It arises as a manifestation of concurrent changes in its physical climate introduced by intensive warming of its surface waters as well as abrupt increases in the mean sea level and the net annual mean fresh water flux. The warming is evident in the annual-mean sea surface temperature (SST) data by a continuous rise at a rate of similar to 0.25 degreesC per year, following a strong cooling phase in 1991 - 1993. The most …

Modeling Sediment Transport In The York River : Final Report, Jerome P.-Y. Maa

Reports

Numerical simulation on the formation of an Estuarine Turbidity Maximum (ETM) is a difficult task because of the incomplete knowledge on cohesive sediment transport. For example, it is difficult to well simulate the erosion process when the bed erosion properties are only poorly known. It is also hard to simulate the settling process when the bulk density and size of suspended sediment flocs are changing with the ambient environments.

Despite of the difficulties, some processes can be parametricalized, even not perfectly, to make the simulation results close to observed. In this project, we demonstrated the possibility of using a constant …

Geometry And Topology Of Escape. I. Epistrophes, K. A. Mitchell, J. P. Handley, B. Tighe, John B. Delos, Stephen Knudson

Arts & Sciences Articles

We consider a dynamical system given by an area-preserving map on a two-dimensional phase plane and consider a one-dimensional line of initial conditions within this plane. We record the number of iterates it takes a trajectory to escape from a bounded region of the plane as a function along the line of initial conditions, forming an “escape-time plot.” For a chaotic system, this plot is in general not a smooth function, but rather has many singularities at which the escape time is infinite; these singularities form a complicated fractal set. In this article we prove the existence of regular repeated …

Geometry And Topology Of Escape. Ii. Homotopic Lobe Dynamics, K. A. Mitchell, J. P. Handley, John B. Delos, Stephen Knudson

Arts & Sciences Articles

We continue our study of the fractal structure of escape-time plots for chaotic maps. In the preceding paper, we showed that the escape-time plot contains regular sequences of successive escape segments, called epistrophes, which converge geometrically upon each end point of every escape segment. In the present paper, we use topological techniques to: (1) show that there exists a minimal required set of escape segments within the escape-time plot; (2) develop an algorithm which computes this minimal set; (3) show that the minimal set eventually displays a recursive structure governed by an “Epistrophe Start Rule:” a new epistrophe is spawned …

The Virginia Wetlands Report Vol. 18, No. 2, Cumulative Index 1986-2002, Virginia Institute Of Marine Science

Virginia Wetlands Reports

• Killdeer: The Most Famous of Shorebirds. Pam Mason
• The Mid-Atlantic Wetlands Monitoring Work Group (MAWWG). Kirk Havens
• Web Page Panorama

The Crest, Summer 2003, Virginia Institute Of Marine Science

Reports

Table of Contents:

• TBT or not TBT: Collaborators Search for a Solution to Pollution
• VIMS research helps protect Navy ships from mines
• Switch to Circle Hooks Would Benefit White Marlin
• Do Tags Put a Drag on Marine Organisms?
• Video Technology Links VIMS to the World
• For-hire Fishing Captains Drawn to Regional Workshops
• Teachers Gain Hands-On Research Experience
• Pair Use Neural Network to Predict Hurricane Waves
• Seamount Census Reveals New and Poorly Known Marine Life
• VIMS Helps Local Students Aid Oyster Restoration Effort
• From Counting Fish to Implementing Energy Policy

Penetration Of Anthropogenic Carbon Into Organic Particles Of The Deep Ocean, Erm Druffel, Je Bauer, S Griffin, J Hwang

VIMS Articles

] In the late 1980s, bomb C-14 was present in suspended particulate organic carbon (POC) from the North Central Pacific (NCP) and Sargasso Sea ( SS) throughout most of the water column, demonstrating that deep POC had exchanged with atmospheric CO2 in the past 30 years. Upon reoccupation of these sites in 1999 and 2000, respectively, we observed that the delta(13)C values of suspended POC were lower than those measured a decade earlier. This demonstrates that anthropogenic CO2 from fossil fuel and biomass burning has penetrated a major organic matter pool in the deep ocean. Delta(14)C measured in the suspended …

Northumberland County - Shoreline Situation Report, Marcia Berman, Harry Berquist, Sharon Dewing, Carl Hershner, Tamia Rudnicky, Daniel E. Schatt, David Weiss, Helen Woods

Reports

No abstract provided.

Categorization Of Shellfish Tmdl Sites Final Report, Julie Herman, Carl Hershner, Howard Kator

Reports

There were two important goals for this project, including the assembly and compilation of digital data for the Coastal Plain and tidal waters of Virginia, and the categorization of the Division of Shellfish Sanitation (DSS) shellfish growing areas to determine if some are similar enough for water quality models to be effectively transferred from the modeled growing areas to other areas. This report summarizes the data and statistical analyses and discusses the results. Note: The digital data has a very fine resolution. The maps displayed in this report cannot convey this information on 8.5x11" paper. All digital data layers (shape …

Evaluating Recruitment Of American Eel, Anguilla Rostrata, To The Potomac River Spring 2003, Marcel M. Montane, M. Todd Mathes, Hank Brooks

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 …

City Of Virginia Beach Dune Inventory, C. Scott Hardaway Jr., Donna A. Milligan, Lyle M. Varnell, George R. Thomas, Walter L. Priest, Linda M. Meneghini, Thomas A. Barnard, Sharon A. Killeen

Reports

The City of Virginia Beach is located on the southern shore of Chesapeake Bay (Figure 1). Ocean coast dunes were not included in this assessment. Primary tidal shorelines extend from Cape Henry westward to Little Creek Inlet. Eight (8) dune sites were identified along the City of Virginia Beach shoreline on the southern shore of Chesapeake Bay (Figure 2). It is the intent of this publication to provide the user with information on the status of dunes in City of Virginia Beach. This information comes from research performed in 1999 and 2000 which was presented in a report entitled “Chesapeake …

Integrated Coastal Management & Sustainable Aquaculture Development In The Adriatic Sea, Republic Of Croatia, Anamarija Frankic

Reports

This report discusses development of responsible aquaculture in the Republic of Croatia as part of the integrated coastal zone management and sustainable development of marine, coastal and islands natural and human resources. Based on literature review examples of aquaculture development and its constraints are presented, as well as possible solutions and recommendations. In addition, one attachment document provides brief summary information regarding Mediterranean lessons in aquaculture practices, while second document provides draft guidelines for sustainable aquaculture development in Croatia. Report is a contribution to the project ‘The Integrated Coastal Zone Management for Croatia with special focus on aquaculture’, administered by …

Monitoring Relative Abundance Of American Shad In Virginia’S Rivers 2002 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 (ASMFC 1999). Legislation enables imposition of federal sanctions on fishing in those states that fail to comply with the FMP. To be in compliance, coastal states are required to implement and maintain fishery-dependent and fisheryindependent monitoring programs as specified by the FMP. For Virginia, these requirements include spawning stock assessments, the collection of biological data on the spawning run (e.g., age-structure, sex ratio, spawning …

Mathews County Dune Inventory, C. Scott Hardaway Jr., Donna A. Milligan, Lyle M. Varnell, George R. Thomas, Linda M. Meneghini, Thomas A. Barnard, Sharon A. Killeen

Reports

Mathews County, Virginia is located along the western shore of Chesapeake Bay and is at the eastern end of Virginia’s Middle Peninsula (Figure 1). Eighteen dune sites were identified along the Mathews County shoreline by site visits performed in 1999 and 2000. Of those 18 sites, 13 are located on Chesapeake Bay (Figure 2). It is the intent of this publication to provide the user with information on the status of dunes in Mathews 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 …

City Of Hampton Dune Inventory, C. Scott Hardaway Jr., Donna A. Milligan, Lyle M. Varnell, George R. Thomas, Linda M. Meneghini, Thomas A. Barnard, Sharon A. Killeen

Reports

The City of Hampton, Virginia is located along the western shore of Chesapeake Bay. Six dune sites were identified along Hampton's shoreline by site visits performed in 1999 and 2000. Most of the dunes are located along Chesapeake Bay between Old Point Comfort and Factory Point except of one site on Hampton Roads. It is the intent of this publication to provide the user with information on the status of dunes in the City of Hampton. This information comes from research performed in 1999 and 2000 which was presented in a report entitled "Chesapeake Bay Dune Systems: Evolution and Status".

Northumberland 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, Sharon A. Killeen

Reports

Northumberland County, Virginia is located on the western shore of Chesapeake Bay. Primary tidal shorelines extend from Smith Point southward to Indian Creek along Chesapeake Bay and northwestward up the Potomac River to the Yeocomico River. Fifty-nine (59) dune sites were identified along the Northumberland County shoreline. Thirty seven (37) were located on Chesapeake Bay and the remainder along the Potomac River. It is the intent of this publication to provide the user with information on the status of dunes in Northumberland County. This information comes from research performed in 1999 and 2000 which was presented in a report entitled …

The Virginia Wetlands Report Vol. 18, No. 1, Virginia Institute Of Marine Science

Virginia Wetlands Reports

• The Common Clamworm (Nereis succinea). Rebecca Jo Thomas
• The First Electronic Shoreline Situation Report is Released for the City of Norfolk. Marcia Berman
• An Overview of Permitted Tidal Wetland Impacts for 2002. Karen Duhring
• The Tropical Potato. Pam Mason
• Economics vs. Wetland Protection: How Do Wetland Boards Do It? Thomas Barnard

Status Of The Major Oyster Diseases In Virginia 2002 A Summary Of The Annual Monitoring Program, Lisa M. Ragone Calvo, Eugene M. Burreson

Reports

Samples collected monthly from the upper James River sites from January through May showed a decline in P. marinus prevalence during the 4 winter and spring following a typical annual pattern; however, annual minimums were atypically high, particularly at Point of Shoals and Wreck Shoal (12-44%). Unusually high salinity conditions and warm winter temperatures promoted high overwintering survival of the pathogen and an early onset of the disease in the summer months. Perkinsus marinus prevalence increased to 100% at all four of the upper river stations and record high infection intensities were observed at Deepwater Shoal and Horsehead Rock. It …

Monitoring Relative Abundance Of Young Of Year American Eel, Anguilla Rostrata, In The Virginia Tributaries Of Chesapeake Bay, Marcel M. Montane, M. Todd Mathes, Hank Brooks

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 states’ efforts to collect data on the resource and the fishery it supports through both fishery dependent and 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 …

Wetlands Of Virginia: Total, Isolated And Headwater, Carl Hershner, Kirk J. Havens, Marcia Berman, Tamia Rudnicky, Daniel Schatt

Reports

No abstract provided.

Initiating The Development Of A Forested Depressional Wetland Hgm Model For The Coastal Plain Of Virginia., Kirk J. Havens, David O'Brien, David Stanhope, Rebecca Thomas, Gene Silberhorn

Reports

This report encompasses the initial development of a WDW model up to the preliminary development stage and serves as an initial framework for a WDW model for the coastal plain of Virginia. These results can serve as a foundation for subsequent studies to complete the development of the model.

2003 Gloucester Point Station Tide Prediction Calendars, Virginia Institute Of Marine Science, David A. Evans

Miscellaneous

These calendars are produced monthly using David Evans' Tidecal.

2003 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.