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Research and Technical Reports

Environmental Sciences

1993

Articles 1 - 16 of 16

Full-Text Articles in Physical Sciences and Mathematics

Distribution Of Submerged Aquatic Vegetation In The Chesapeake Bay And Tributaries And Chincoteague Bay - 1992, Robert Orth, Judith F. Nowak, Gary F. Anderson, Jennifer R. Whiting Dec 1993

Distribution Of Submerged Aquatic Vegetation In The Chesapeake Bay And Tributaries And Chincoteague Bay - 1992, Robert Orth, Judith F. Nowak, Gary F. Anderson, Jennifer R. Whiting

Reports

No abstract provided.


Data Report : Hypoxia In The James River, 1992, G. M. Sisson, A. Y. Kuo, Bruce Neilson, Nancy C. Wilson Aug 1993

Data Report : Hypoxia In The James River, 1992, G. M. Sisson, A. Y. Kuo, Bruce Neilson, Nancy C. Wilson

Reports

As part of the hypoxia program of the Virginia Chesapeake Bay Initiatives, the Department of Physical Sciences of the Virginia Institute of Marine Science (VIMS) conducted a series of measurements around the mouth of the James River estuary. The measurements were made in the summer of 1992. Two types of measurements were conducted: measurements at moored stations and measurements by slackwater surveys. The former collected data for investigation of dissolved oxygen (DO) variation, and associated physical parameters, in an intratidal time scale, as well as for studying the vertical distributions of the measured parameters. The latter collected data for spatial …


Water Quality In Chesapeake Bay : Virginia Portion, Water Year 1992 : A Report To The Virginia Department Of Environmental Quality, Kevin Curling, Rodney Jackson, Bruce Neilson Jul 1993

Water Quality In Chesapeake Bay : Virginia Portion, Water Year 1992 : A Report To The Virginia Department Of Environmental Quality, Kevin Curling, Rodney Jackson, Bruce Neilson

Reports

The Chesapeake Bay Water Quality Monitoring Program (WQMP) has three main objectives: (1) characterization of water quality conditions, (2) detection of temporal trends in water q1llality, and (3) crr.ation of a data base that furthers our understanding of the proceses that control water quality in the Chesapeake Bay system. The purpose of this report is to characterize water quality conditions in the Virginia portion of Chesapeake Bay during the 1992 water year, which runs from October 1991 through September 1992. These monitoring efforts have been conducted with funding from the US Environmental Protection Agency and the Commonwealth of Virginia.


Water Quality In Chesapeake Bay : Virginia Portion, Water Year 1991 : A Report To The Virginia Water Control Board, Kevin Curling, Bruce Neilson Jun 1993

Water Quality In Chesapeake Bay : Virginia Portion, Water Year 1991 : A Report To The Virginia Water Control Board, Kevin Curling, Bruce Neilson

Reports

The purpose of this report is to characterize water quality conditions during the 1991 water year, October 1990 through September 1991. Most information is provided in graphical format and only data for the Virginia portion of Chesapeake Bay is included. No interpretation is included, since data analysis is the stated purpose of several other reports. This report and companion data reports provide to both scientists and managers ready access to a portion of the data. It is possible, for example, to quickly examine seasonal patterns, compare conditions at two stations, or see if surface and bottom conditions differ significantly. Trends, …


Hypoxia In The York River, 1991, A. Y. Kuo, Bruce Neilson, J. M. Brubaker, E. P. Ruzecki May 1993

Hypoxia In The York River, 1991, A. Y. Kuo, Bruce Neilson, J. M. Brubaker, E. P. Ruzecki

Reports

This data report describes field studies conducted during the summer of 1991 by the Virginia Institute of Marine Science (VIMS) when both the physical environment and the dissolved oxygen regime were monitored, with the objective of better understanding how physical transport processes affect DO. The 1991 data sets will be presented here. Analysis and interpretation of the data is the subject of other scientific reports.


The Progression Of "No Discharge Zone" Status In Water Bodies Across The Continental United States, Melissa Chaun Mar 1993

The Progression Of "No Discharge Zone" Status In Water Bodies Across The Continental United States, Melissa Chaun

Reports

No abstract provided.


Status Of The Major Oyster Diseases In Virginia 1992 A Summary Of The Annual Monitoring Program, Eugene M. Burreson Mar 1993

Status Of The Major Oyster Diseases In Virginia 1992 A Summary Of The Annual Monitoring Program, Eugene M. Burreson

Reports

No abstract provided.


Development Of "No Discharge" Zones In Virginia Tidal Waters Phase I, Center For Coastal Resources Management, Virginia Institute Of Marine Science Mar 1993

Development Of "No Discharge" Zones In Virginia Tidal Waters Phase I, Center For Coastal Resources Management, Virginia Institute Of Marine Science

Reports

he Commonwealth of Virginia currently has no regulations in effect to restrict the discharge of waste from vessels in state waters. This poses concern as Virginia continues its efforts to improve water quality in the Chesapeake Bay. The degradation of critical environmental habitat is accelerated by the introduction of waste, which in turn threatens the ecological, aesthetic, and commercial values of Virginia's waters. The purpose of this project is two-fold. First a comprehensive review of regulatory statutes in states enforcing "no discharge" zones (NDZ) was conducted. This product is delivered as a separate document. Second, a large-scale inventory of environmentally …


A Proposed Comprehensive Conservation And Management Plan For The Ungranted State Lands In Accomack And Northampton Countie, N. Bartlett Theberge, Pamela J. Nestell, Susan W. Carter Feb 1993

A Proposed Comprehensive Conservation And Management Plan For The Ungranted State Lands In Accomack And Northampton Countie, N. Bartlett Theberge, Pamela J. Nestell, Susan W. Carter

Reports

The goal of this management plan is to conserve and manage the fragile and dynamic coastal habitat and resources subject to this plan while accommodating compatible public uses.

To date 28,507 acres of ungranted state lands have been identified in Accomack and Northampton Counties. The purpose of this plan 1s to develop a comprehensive conservation and management strategy for these state owned beaches marshes, meadowlands, commons, and other coastal lands which constitute a fragile and dynamic natural coastal resource of the Commonwealth of Virginia.


Identification Of Historic Locations Of Aeschynomene Virginica Within The Tidal Freshwater Zone Of The Pamunkey River, Virginia : Final Report, James E. Perry Jan 1993

Identification Of Historic Locations Of Aeschynomene Virginica Within The Tidal Freshwater Zone Of The Pamunkey River, Virginia : Final Report, James E. Perry

Reports

The historical distribution and population densities of a federal listed threatened plant species, the northern joint vetch (Aeschynomene virginica), was determined and mapped in the tidal regions of the Pamunkey River, Virginia, where a potential water withdrawal structure is being evaluated.


Investigation Of Potential Distribution Of Aeschynomene Virginica In The Tidal Wetlands Of Ware Creek, Virginia : Final Report, James E. Perry Jan 1993

Investigation Of Potential Distribution Of Aeschynomene Virginica In The Tidal Wetlands Of Ware Creek, Virginia : Final Report, James E. Perry

Reports

The distribution and population densities of a federal listed threatened plant species, the northern joint vetch (Aeschynomene virginica), was determined in the vicinity of the proposed Ware Creek Reservoir site in James City County and New Kent County, Virginia. The proposed study was intended to determine the size, limits, and density of extant populations of the northern joint vetch in the project area, and to investigate the possible impacts the project may have on the extant populations. Where necessary, possible mitigation procedures are discussed.


Nutrient Limitation In The Chesapeake Bay : Nutrient Bioassays In The Virginia Bay System: Final Report, Leonard W. Haas, Richard L. Wetzel Jan 1993

Nutrient Limitation In The Chesapeake Bay : Nutrient Bioassays In The Virginia Bay System: Final Report, Leonard W. Haas, Richard L. Wetzel

Reports

Nutrient enrichment bioassays were conducted on water samples collected from six stations in the Virginia portion of the Chesapeake Bay system on a monthly basis over a year. Two stations were located in the tidal freshwater portions of the Rappahannock and James Rivers, at the mouths of these rivers and in the mainstem of the Bay. The purpose of the experiments was to determine the spatial and temporal pattern of nutrient limitation of phytoplankton growth.


Distribution Of Aeschynomene Virginica In The Scotland Landing Region Of The Mattaponi River, Virginia, James E. Perry Jan 1993

Distribution Of Aeschynomene Virginica In The Scotland Landing Region Of The Mattaponi River, Virginia, James E. Perry

Reports

The distribution and population densities of a federal listed threatened plant species, the northern joint vetch (Aeschynomene virginica), was determined and mapped in the vicinity of a proposed Mattaponi River water withdrawal structure. The proposed study was intended to determine the size, limits, and density of extant populations of the northern joint vetch in the project area, and to investigate the possible impacts the project may have on the extant populations. Where necessary, . possible mitigation procedures are discussed.


Sediment Processes Monitoring Data Report For Calendar Year 1989, Cheol Mo, Bruce Neilson, Richard L. Wetzel Jan 1993

Sediment Processes Monitoring Data Report For Calendar Year 1989, Cheol Mo, Bruce Neilson, Richard L. Wetzel

Reports

Pairs of particle interceptor traps were deployed at three depths - 3, 6, and 9 meters with deployment intervals typically lasting about two weeks. At times of deployment and retrieval, profiles of water temperature, salinity and dissolved oxygen content were made and water samples were collected at trap depths. Bottom sediments also were collected and a sub-sample of the surficial sediments taken. Water samples, bottom sediments, and the materials collected in the traps were returned to the Virginia Institute of Marine Sciences for analysis. The data collected during both 1988 and 1989 are presented in the appendices. Both 1988 and …


Effects Of Nutrient Enrichment On Natural And Transplanted Salt Marshes In Virginia : A Literature Review With Management Recommendations - Final Report, R. D. Rheinhardt, J. D. Perry Jan 1993

Effects Of Nutrient Enrichment On Natural And Transplanted Salt Marshes In Virginia : A Literature Review With Management Recommendations - Final Report, R. D. Rheinhardt, J. D. Perry

Reports

This study was initlated in response to a request by SEAS to review their technical recommendations concerning the fertilization of tidal salt marshes and determine whether those recommendations are sound in light of current scientific knowledge. The intention of this analysis was to determine whether benefits are derived from applying nutrients to marshes, and if so, whether those benefits outweigh the costs associated with the potential pollution of Chesapeake Bay's tidal waters.

To provide insight into the effects of adding fertilizers to salt marshes, the scientific literature was examined from four perspectives:

1) the dynamics of ·nutrient cycling in natural …


Wetlands Guidelines, Department Of Wetlands Ecology, Virginia Institute Of Marine Science, Habitat Management Division, Virginia Marine Resources Commission Jan 1993

Wetlands Guidelines, Department Of Wetlands Ecology, Virginia Institute Of Marine Science, Habitat Management Division, Virginia Marine Resources Commission

Reports

No abstract provided.