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Articles 1 - 30 of 58
Full-Text Articles in Entire DC Network
Nearshore And Surf-Zone Morphodynamics : A Global Environmental Model For Predicting Hazards And Changes, L. D. Wright, N. C. Shi, John D. Boon
Nearshore And Surf-Zone Morphodynamics : A Global Environmental Model For Predicting Hazards And Changes, L. D. Wright, N. C. Shi, John D. Boon
Reports
The long-term goal of the project has been to develop improved, accurate predictability of nearshore, surf zone, and beach hydrodynamic and morphologic assemblages, based on lucidation of the universal principles governing nearshore and surf zone morphodynamic behavior.
Nearshore And Surf-Zone Morphodynamics: A Global Environmental Model For Predicting Hazards And Changes. Appendix 6. Standing Waves On A Pronounced Bar Trough Beach, Nungjane C. Shi, L. D. Wright
Nearshore And Surf-Zone Morphodynamics: A Global Environmental Model For Predicting Hazards And Changes. Appendix 6. Standing Waves On A Pronounced Bar Trough Beach, Nungjane C. Shi, L. D. Wright
Reports
The hypothesis that a pronounced bar-trough surf zone topography favors resonance of standing waves with antinodes located over the bar is examined. Numerical and field investigations of standing waves in a bar-trough surf zone suggest a selective trapping of wave energy at specific resonant frequencies in the subharmonic and the high frequency infragravity bands and a possible suppression of lower frequencies. The resonant frequencies predicted by the numerical model remain fairly constant throughtout the tidal cycle due to the small tidal range typically associated with a bar-trough beach. Cross-shore bar migration changes the resonant frequencies. Numerical simulations show that an …
Hydrocarbon Levels In Tampa Bay Final Report, Larry J. Doyle, Edward S. Van Vleet, William M. Sackett, Norman J. Blake, Gregg R. Brooks
Hydrocarbon Levels In Tampa Bay Final Report, Larry J. Doyle, Edward S. Van Vleet, William M. Sackett, Norman J. Blake, Gregg R. Brooks
Reports
The primary purpose of this project was to establish and characterize, as far as possible, hydrocarbon base levels for the Tampa Bay Estuary. In addition, we were to characterize 1) hydrocarbon molecular compositions, 2) the isotopic composition of total and lipid sediment organic carbon, and 3) evaluate the potential for utilizing isotopic analyses to quantify and determine the extent of future oil spills.
A Survey In The Lafayette River For Oysters And Shell In The Vicinity Of The Lakewood Bridge, Roger Mann, James P. Whitcomb
A Survey In The Lafayette River For Oysters And Shell In The Vicinity Of The Lakewood Bridge, Roger Mann, James P. Whitcomb
Reports
At the request of the Department of Highways and Transportation the Virginia Institute of Marine Science made a study of the value of the oyster grounds in the vicinity of the Lakewood Bridge on the Lafayette River in Norfolk.
The study included numbers of oysters and amounts of shell, or natural reef, in the area of acquisition and within a buffer area either side of the present bridge. The buffer area, or area of potential construction impact, extended 500 feet upriver of the bridge and 500 feet downriver of the bridge. This buffer area was the maximum distance upriver and …
Oyster Spatfall In Virginia Rivers: 1985 Annual Survey, James Whitcomb
Oyster Spatfall In Virginia Rivers: 1985 Annual Survey, James Whitcomb
Reports
The Virginia Institute of Marine Science (VIMS) conducts weekly surveys from June through early October to obtain oyster spatfall information. Spat counts are made on oyster shells strung qn wire and suspended from stakes on public and private beds. The number of spat on shells is counted each week of the spawning season to determine the potential of a particular area for receiving a strike and to predict the most likely period the strikes will occur.
Relative Contribution Of Three Virginia Rivers To Spawning Activity Of Striped Bass, Morone Saxatilis, John E. Olney, George C. Grant, Gary Hill
Relative Contribution Of Three Virginia Rivers To Spawning Activity Of Striped Bass, Morone Saxatilis, John E. Olney, George C. Grant, Gary Hill
Reports
Initial documentation of spawning activity of striped bass in the tidal freshwater portions of Virginia rivers was provided by Tresselt (1952), Massman et al. (1952, 1962), Rinaldo (1971) and Merriner et al. (1980). Recently, a series of pilot ichthyoplankton surveys of these habitats has resulted in data describing patterns of abundance of eggs and larvae in three separate rivers during three separate years: the Pamunkey and Mattaponi Rivers in spring 1980 (Grant and Olney 1981); the James River in 1981 (Grant and Olney 1982); and the Rappahannock in 1982 (Olney et al. 1983). These surveys were conducted in response to …
Fall 1985 Potomac River Oyster Bar Survey, Elgin A. Dunnington, James P. Whitcomb
Fall 1985 Potomac River Oyster Bar Survey, Elgin A. Dunnington, James P. Whitcomb
Reports
No abstract provided.
Baltimore Harbor And Channels Aquatic Benthos Investigations : Final Technical Report, Robert J. Diaz, Linda C. Schaffner, Robert J. Byrne, Robert A. Gammisch
Baltimore Harbor And Channels Aquatic Benthos Investigations : Final Technical Report, Robert J. Diaz, Linda C. Schaffner, Robert J. Byrne, Robert A. Gammisch
Reports
This report describes work performed by the Virginia Institute of Marine Science, School of Marine Science of the College of William and Mary, Gloucester Point, VA, to document the existing preoperational conditions at four locations in the Chesapeake Bay selected as possible dredged material disposal areas for the deepening of the Baltimore Channel. The work was sponsored by the Baltimore District Corps of Engineers.
The objectives of this work were at each of the four potential disposal sites:
1 -document the surface (0-15 em) sediment conditions spatially and temporally
2 - document macrobenthic communities spatially and temporally.
3 - empty …
Status Of Knowledge For Virginia Fisheries, Herbert M. Austin
Status Of Knowledge For Virginia Fisheries, Herbert M. Austin
Reports
No abstract provided.
Vims Monitors Effects Of Flood Waters On James River Seed Oysters, Virginia Sea Grant Marine Advisory Program
Vims Monitors Effects Of Flood Waters On James River Seed Oysters, Virginia Sea Grant Marine Advisory Program
Reports
Early November's abnormally high rainfall and subsequent large freshwater flow into oyster-producing areas, particularly the James River seed beds, have caused great concern within the oyster industry. While the Institute cannot alter the physical situation, we can monitor the effects of this event and alert the oyster industry to our findings.
A Rapid Field Guide To The Identification Of Flounders Of The Genus (Paralichthys) In Virginia's Waters, Herbert M. Austin
A Rapid Field Guide To The Identification Of Flounders Of The Genus (Paralichthys) In Virginia's Waters, Herbert M. Austin
Reports
No abstract provided.
Water Quality In A Virginia Potomac Embayment Aquia Creek, Albert Y. Kuo
Water Quality In A Virginia Potomac Embayment Aquia Creek, Albert Y. Kuo
Reports
No abstract provided.
The Marine Mammals Of Virginia: With Notes On Identification And Natural History, Robert A. Blaylock
The Marine Mammals Of Virginia: With Notes On Identification And Natural History, Robert A. Blaylock
Reports
This guide describes the natural history of marine mammals. The guide is organized by taxonomic orders and families; within a subfamily, species are listed by their frequency of appearance in Virginia waters. Space limits descriptions of the species' habitats and distributions to the western North Atlantic.
First Annual Progress Report For The Period July 1 , 1984 - June 30, 1985, Chesapeake Bay Research And Submerged Aquatic Vegetation Initiatives, Virginia Institute Of Marine Science
First Annual Progress Report For The Period July 1 , 1984 - June 30, 1985, Chesapeake Bay Research And Submerged Aquatic Vegetation Initiatives, Virginia Institute Of Marine Science
Reports
No abstract provided.
Potential Risk Of Vibrio Infection In Virginia, Susan Schmidt, Robert Hoyt
Potential Risk Of Vibrio Infection In Virginia, Susan Schmidt, Robert Hoyt
Reports
No abstract provided.
A Resurvey Of The Hampton Roads Corridor Area Adjacent To The Proposed Site Of The I-664 Bridge-Tunnel, Roger L. Mann, James P. Whitcomb
A Resurvey Of The Hampton Roads Corridor Area Adjacent To The Proposed Site Of The I-664 Bridge-Tunnel, Roger L. Mann, James P. Whitcomb
Reports
On July 2 and 3, 1985, a survey was conducted by the Virginia Institute of Marine Science (VIMS) on Drewery-Register (formerly Melzer) leased bottom (48.37 acres) off Newport News Point, Virginia (Figure 1). The study was done at the request of the Virginia Department of Highways and Transportation, Suffolk, Virginia in relation to the construction of I-664, Project 066!!-121-102, RW-201.
The objective of this study was to determine the extent and value of the molluscan resource on the Dewery - Register lease prior to construction activity.
Hillsborough Bay Macroalgae Study Final Report, Mangrove Systems, Inc.
Hillsborough Bay Macroalgae Study Final Report, Mangrove Systems, Inc.
Reports
Hillsborough Bay. the northeastern portion of the Tampa Bay estuarine system (Fig. 1) has long suffered from the problems caused by industry and urbanization (Simon 1974). The macroalgal community of this estuary has been identified as a source of nuisance odor problems for many years. A study by the Federal Water Pollution Control Administration (FWPCA 1969) indicated that these problems resulted from degraded water quality (primarily eutrophication) which led to large populations of one or two species of marine red algae (Gracilaria spp.). Seasonal freshwater input resulted in the death and decay of these quantities of algae, producing the odor …
1985 Msx Update, Virginia Sea Grant Marine Advisory Program
1985 Msx Update, Virginia Sea Grant Marine Advisory Program
Reports
No abstract provided.
Present And Historical Environmental Survey Of The Poquoson River, York County, Virginia And The Warwick River; Newport News, Virginia : With Special Reference To Biotic Communities And The Effects Of Alum Discharge, Robert J. Diaz, Morris H. Roberts Jr., Gene M. Silberhorn, Gary F. Anderson
Present And Historical Environmental Survey Of The Poquoson River, York County, Virginia And The Warwick River; Newport News, Virginia : With Special Reference To Biotic Communities And The Effects Of Alum Discharge, Robert J. Diaz, Morris H. Roberts Jr., Gene M. Silberhorn, Gary F. Anderson
Reports
The objectives of this study were:
1. to determine the areal extent of discharged materials within each of the rivers using the aluminum:silicon ratio as an indicator;
2. to evaluate the benthic invertebrate communities within each of the rivers;
3. to determine whether there are differences in the productivity of the benthic algal and planktonic communities which can be attributed to the discharge of alum sludge in each river;
4. to evaluate the condition of the marsh communities in each river near the filtration plant;
5. to review historical biological data for the Poquoson and Warwick Rivers and to relate …
Status Of The 1984 Striped Bass Fisheries In Virginia After Implementation Of The 1984 Emergency Regulations To The 1981 Asmfc Interstate Management Plan For Striped Bass, Herbert M. Austin
Status Of The 1984 Striped Bass Fisheries In Virginia After Implementation Of The 1984 Emergency Regulations To The 1981 Asmfc Interstate Management Plan For Striped Bass, Herbert M. Austin
Reports
No abstract provided.
Hydrodynamic And Water Quality Measurements In The Appomattox River : A Report To The City Of Petersburg, Virginia Institute Of Marine Science
Hydrodynamic And Water Quality Measurements In The Appomattox River : A Report To The City Of Petersburg, Virginia Institute Of Marine Science
Reports
No abstract provided.
Water Quality In A Virginia Potomac Embayment Gunston Cove, Carl F. Cerco
Water Quality In A Virginia Potomac Embayment Gunston Cove, Carl F. Cerco
Reports
No abstract provided.
Rationale For Size And Catch Limits On Red Drum (Sciaenops Ocellatus) And Black Drum (Pogonias Cromis) In Virginia Waters, Herbert M. Austin, Mark E. Chittenden
Rationale For Size And Catch Limits On Red Drum (Sciaenops Ocellatus) And Black Drum (Pogonias Cromis) In Virginia Waters, Herbert M. Austin, Mark E. Chittenden
Reports
No abstract provided.
The Virginian Oyster, Dexter S. Haven, Herbert M. Austin
The Virginian Oyster, Dexter S. Haven, Herbert M. Austin
Reports
No abstract provided.
Testimony Before The Subcommittee On Fisheries And Wildlife Conservation And The Environment Of The Committee On Merchant Marine And Fisheries On H.R. 1028 The Establishment Of The "Interjurisdictional Fisheries Research Act Of 1985" And H.R. 1025 Reauthorization Of The "Anadromous Fish Conservation Act Of 1965", Herbert M. Austin
Reports
No abstract provided.
A Report To The Virginia Marine Resources Commission On The Possible Occurrence Of Crowded Oysters On Drumming Ground In The Rappahannock River, Dexter Haven
Reports
No abstract provided.
Preliminary Identification, Analysis, And Classification Of Odor-Causing Mechanisms Influenced By Decreasing Salinity Of The Great Salt Lake, C. Earl Israelsen, Darwin L. Sorensen, Alberta J. Seierstad, Charlotte Brennard
Preliminary Identification, Analysis, And Classification Of Odor-Causing Mechanisms Influenced By Decreasing Salinity Of The Great Salt Lake, C. Earl Israelsen, Darwin L. Sorensen, Alberta J. Seierstad, Charlotte Brennard
Reports
Introduction: The rising level of the Great Salt Lake has received a great deal of attention because of the resulting physical damage to adjoining properties, threatened distruption of major transportation facilities, and environmental damage to feeding and resting areas for migratory waterfowl. Another problem of growing concern is that some zones of the lake are producing odors that are objectionable to nearby populated areas. These odors are most offensive during the warm summer months and appear to be increasing with the rising levels and decreasing salinity of the lake water. This report presents the approach taken and the findings of …
Evaluation Of Miramat Under High Velocity Flows, C. Earl Israelsen, Frank W. Haws
Evaluation Of Miramat Under High Velocity Flows, C. Earl Israelsen, Frank W. Haws
Reports
Introduction: Newly constructed earth channels and steep cut and fill slopes on construction projects need temporary protection from water erosion until a protective cover of vegetation can be grown. In some instances the temporary protective measures can be left in position to serve as part of the permanent system. Various kinds of vegetative and chemical mulches are available for use as temporary control measures, and other materials such as jute, fiberglass roving, and excelsior blanket are also in use. However, for large volumes of flow and for high velocities, more substantial materials are required. One class of such materials is …
Identification And Modeling The Impact Of Marine Shale Bedrock On Groundwater And Stream Salinity: Upper Colorado River Basin, Christopher J. Duffy, Jerome J. Jurinak, Sanjay Sangani, Ali Azimi
Identification And Modeling The Impact Of Marine Shale Bedrock On Groundwater And Stream Salinity: Upper Colorado River Basin, Christopher J. Duffy, Jerome J. Jurinak, Sanjay Sangani, Ali Azimi
Reports
Recent studies have shown that groundwater is a major contributor to stream salinity in the Upper Colorado River Basin. The primary salt sources are the marine shales and shale residuum that underlie the soils of much of the basin. A field site in the Price River Basin, a tributary to the Green and Colorado Rivers, was selected to study the physical and chemical factors that control the interactions between groundwater and these shales. Preliminary data were available at the site as a result of a Bureau of Reclamation study conducted by CH2M Hill. On the basis of the CH2M Hill …
Water Education Grades K-6, Donald R. Daugs, C. Earl Israelsen
Water Education Grades K-6, Donald R. Daugs, C. Earl Israelsen
Reports
Preface: Water Activites for Elementary Children is based upon the assumption that children learn best by doing. In education, and especilly in science, talking is not necessarily teaching. The most desireable types of learning involve direct, first hand experience, not just a teacher's interpretation of these experiences. This set of learning experiences has been designed for teachers, teachers-in-training, and children, Each concept includes background information for the teacher and learning activities for the children. Lessons are designed so taht a teacher can successfully teach a unit or lession with a minimum of knowledge, preparation, and equipmnet. Most of the suggested …