Life Sciences Commons^™

Vertical One-Dimensional (1-D) Simulations Of Horizontal Velocity Profiles, Jerome P.Y. Maa, Jian Shen, Xiaoteng Shen, Shao Yuyang

Reports

Details of a vertical 1-D hydrodynamic model to simulate the horizontal velocity profiles for tidal estuarial flows with possible stratifications caused by salinity or Suspended Sediment Concentration (SSC) are presented. The standard 2nd order k-ε model was implemented to address the turbulent flow with possible stratification effects. Simulation results are verified with two field measurements for steady nonstratified flows and a field measurement for tidal estuary non-stratified flow. The stratification effect of salinity and suspended sediment concentration are also checked with the following descriptions: “Salinity stratification will change the typical logarithmic velocity profile to a linear profile for most of …

Essential Fish Habitat Of Atlantic Sturgeon Acipenser Oxyrinchus In The Southern Chesapeake Bay, J. A. Musick

Reports

No abstract provided.

Rde Model: A Program For Simulating Water Wave Transformation For Harbor Planning, Jerome P.Y. Maa, T. W. Hsu, H. H. Hwung

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No abstract provided.

Resource Limitation Of Phytoplankton In The Virginia Chesapeake Bay And Tributaries Using Nutrient-Addition Bioassays, Leonard W. Haas, Kenneth L. Webb

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No abstract provided.

Using The Gaussian Elimination Method For Large Banded Matrix Equations, Jerome P.Y. Maa, Ming-Hokng Maa, Changqing Li, Qing He

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No abstract provided.

Patterns Of Phytoplankton Abundance And Nutrient Concentration In The York River Estuary, Virginia: 1984-1994, Yongsik Sin, Richard L. Wetzel

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No abstract provided.

Global Climate Change: Sources Of Information And Materials, J. A. Hodges, F. L. Larkin

Reports

No abstract provided.

A Comparison Of Two Methods Of Measuring Dissolved Organic Carbon, Betty Saley, Kevin Curling, Bruce Neilson

Reports

No abstract provided.

A Report On Aspects Of Productivity Of The Men And Women Of Vims: An Analysis Of The Written Communications And Other Products Identified With Various Outside-Supported Projects Or Programs From 1940 To 1982, With Emphasis On Time Of Appearance And Significance, William J. Hargis Jr., Thomas A. Armitage

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No abstract provided.

Analytical Protocol For Hazardous Organic Chemicals In Environmental Samples, Division Of Chemistry And Toxicology, Virginia Institute Of Marine Science

Reports

No abstract provided.

Habitat Requirements For The Softshell Clam, Mya Arenaria In The Chesapeake Bay, Patrick Baker, Roger L. Mann

Reports

Large populations of softshell clams persist only in relatively shallow, sandy. mesohaline portions of Chesapeake Bay. These areas are mostly in Maryland, but can also occur in the Rappahannock River. Virginia. In some other portions of the bay, especially polyhaline portions. sparse populations of soft shell clams persist subtidally. Restricted populations exist intertidally.

Softshell clams grow rapidly in Chesapeake Bay, reaching commercial size in two years or less. They reproduce twice per year, in spring and fall, but probably only fall spawnings are important in maintaining population levels. Major recruitment events do not occur in most years. despite heavy annual …

Eutrophication Of Lake Matoaka Assessment And Projection, Bruce Neilson, Gary F. Anderson, Martha Rhodes

Reports

No abstract provided.

Habitat Requirements For The Hard Clam, Mercenaria Mercenaria, In Chesapeake Bay, G.Curtis Roegner, Roger L. Mann

Reports

The hard clam, Mercenaria mercenaria, is found along the eastern coast of North America from the Gulf of St. Lawrence to Texas. In Chesapeake Bay the hard clam is restricted to salinities above approximately 12 ppt. The abundances and distribution patterns of hard clams in Chesapeake Bay are based on studies performed nearly 20 years ago - a more extensive survey of hard clam resources is due. Statements concerning long term trends in populations are not feasible.

The basic anatomy of hard clams conform to that of venerid bivalves. Hard clams grow to a maximum shell length (anterior-posterior dimension) of …

Chesapeake Bay Bibliography Thesaurus, Julia Wilcox, Susan Barrick

Reports

No abstract provided.

Chesapeake Bay Marine Environmental Assessment 1985 Annual Summary, Karen L. Kelly

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No abstract provided.

Written Communications In Fishery Science, Management, Techonology, And Advisory Services Produced By Personnel Of The Virginia Institute Of Marine Science During The Years 1940-1987, Frank J. Wojcik, William J. Hargis Jr.

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No abstract provided.

Ecology Of Sea Turtles In Virginia, Sarah A. Bellmund, John A. Musick, Ruth Ellen C. Klinger, Richard A. Byles

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No abstract provided.

Development Of An Index Of Juvenile Striped Bass Abundance For The Chesapeake Bay System: I. An Evaluation Of Present Measures And Recommendations For Future Studies, James A. Colvocoresses, Herbert M. Austin

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No abstract provided.

Chesapeake Bay Marine Environmental Assessment March 1986 - August 1986, Terry L. Bashore, Karen L. Kelly

Reports

No abstract provided.

Bibliography Of The Monogenetic Trematode Literature Of The World, 1758 To 1982, William J. Hargis Jr., Dennis A. Thoney

Reports

Interest in the monogenean parasites has grown markedly in the last twenty years. To enhance and speed world-wide research activity, we prepared the first edition of this bibliography in 1969. This latest effort is intended to do the same.

Lower Bay Zooplankton Monitoring Program : The August 1978 Survey, George C. Grant, John E. Olney

Reports

Monitoring of the lower Chesapeake Bay zooplankton populations was begun in March 1978 to provide a data base needed as a prerequisite to future evaluations of faunal change. An initial report (Grant and Olney, 1979) presented the basic design and sampling techniques of the Lower Bay Zooplankton Program (LBZMP), along with results of the first winter-spring cruise.

These surveys are conducted during four months of the year, with complete taxonomic analysis in March and August and analyses limited to meroplanktonic fish eggs and larvae and decapod crustacean larvae tn June and July. The present report includes results of the summer …

Products And Productivity Of The Men And Women Of The Virginia Institute Of Marine Science From 1940 To June, 1983, William J. Hargis Jr., Thomas M. Armitage

Reports

No abstract provided.

Metal Inventory And Fate Of Suspended Sediment In Chesapeake Bay, Maynard M. Nichols, Galen Thompson, Bruce Nelson

Reports

This report aims to provide new information that meets selected objectives of the EPA-States Taxies Plan of Action: i.e. (1) to determine the state of the Bay with respect to the distribution and concentration of selected metals in suspended material and fluid mud; (2) to establish the temooral variations of sediment and metal loading: (3) to identify potential zones of metal accumulation and trace their transport routes, and (4) to provide recommendations for monitoring contaminated sediment.

Field observations provide longitudinal coverage of the Bay with transects into Baltimore Harbor and Hampton Roads. They include contrasting conditions of seasonal high-low river …

Transport Of Bivalve Larvae In The James River, Virginia, Jay D. Andrews

Reports

The James River is the primary source of seed oysters for planting private beds in the Chesapeake Bay. A sharp decline in setting rates after 1960 accompanied cessation of oyster culture on private beds in the lower sector of the river. These broodstocks were eliminated and the beds were barren after 1960. High salinities permitted a new oyster disease caused by Minchinia nelsoni (MSX) to make planting in the lower river hazardous because of high mortalities (Andrews, 1964 and in press).

Studies of larval transport mechanisms were begun in the James River in 1950, and extensive sampling was done from …

Climate Scale Environmental Factors Affecting Year Class Fluctuations Of Chesapeake Bay Croaker Micropogonias Undulatus, Brenda L. Norcross, Herbert M. Austin

Reports

No abstract provided.

Chesapeake Bay Bibliography - Volume V. Virginia And Maryland Waters, Marilyn Neff Loesch

Reports

The Chesapeake Bay Bibliography was initiated by the Virginia Institute of Marine Science in response to growing resource management problems of the Chesapeake Bay and its tributaries. With these problems came the realization that planning and management of such a great natural resource is an overwhelming task requiring the best available information. This bibliography, therefore, was undertaken to document existing sources of information, to help identify research and data gathering needs, and to develop a comprehensive research and information services programs for individuals interested in research on, and management of the natural resources of the Chesapeake Bay region.

The four …

Sediment Mixing By Invertebrates As Shown By 85kr1, Dexter S. Haven, Reinaldo Morales-Alamo, John N. Krauter

Reports

In the event radionuclides are accidentally introduced into an estuary, many isotopes would become adsorbed on suspended particles of clay or silt; others would be incorporated into living cellular material (Caritt and Goodgal, 1954; Rice and Willis, 1959). Oysters and other filter feeders in these estuaries are capable of filtering from suspension large quantities of the suspended solids, as well as the larger living cellular material (Haven and Morales-Alamo, 1966a). Ingested material along with the associated radionuclides would be voided as compacted fecal strings or pellets (biodeposits). Many of these fecal pellets may be alternately suspended in the water mass …

An Animal-Sediment Study In The Lower York River : February 1965 To February 1966, Dexter S. Haven, John N. Kraeuter, Richarad C. Krauter, Reinaldo Morales-Alamo

Reports

Certain invertebrates are more efficient than others in filtering solids from suspension. An equal degree of variability exists among benthic invertebrates in their ability to mix biodeposits into subsurface sediments. As a result of these differences, the degree to which suspended particulate matter and associated contaminants may be deposited or mixed into sediments may in part depend on the species present, which in turn may be dependent on sediment type. A number of investigators have examined the relation between benthic animal communities and their limiting physical factors (Smith, 1932; Mare, 1942; Dexter, 1947; Holm, 1949; Stic~1ey and Stringer, 1957; Sanders, …

The Virginian Sea Bibliography, Thomas M. Armitage, William J. Hargis Jr.

Reports

The bibliography of the Virginian Sea is a compendium of literature and environmental data concerning the Middle Atlantic Bight region of the Western North Atlantic - or the United States east coast. The geographical coverage of this bibliography ineludes that region extending from 41° N latitude to 36° N latitude and out 200 miles from the coastal headlands. This volume represents the first step of an effort undertaken by the Virginia Institute of Marine Science to assess the present status of knowledge concerning the physical and chemical environment, biology, and fisheries of the Virginian Sea. We do not put forth …

Benthic Macroinvertebrate Population Distributions In Relation To The C. P. Crane Power Plant Thermal Discharge : Final Report, Robert A. Jordan, Charles E. Sutton, Patrica Goodwin

Reports

Benthic macroinvertebrates (0.5 mm sieve) were sampled quarterly during the period June 1979-April 1980 in the oligohaline habitat in the vicinity of the C. P. Crane Generating Station, and in three reference areas in tributaries of Chesapeake Bay. Communities were distinguished according to sediment type (sand vs mud groups) and water depth (creek vs river-bay assemblages).