Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Environmental Sciences (39)
- Civil and Environmental Engineering (23)
- Engineering (23)
- Water Resource Management (23)
- Life Sciences (10)
-
- Environmental Monitoring (7)
- Marine Biology (7)
- Animal Sciences (6)
- Aquaculture and Fisheries (6)
- Oceanography and Atmospheric Sciences and Meteorology (6)
- Earth Sciences (5)
- Environmental Indicators and Impact Assessment (5)
- Oceanography (4)
- Sedimentology (4)
- Fresh Water Studies (2)
- Immunology and Infectious Disease (2)
- Parasitology (2)
- Zoology (2)
- Ecology and Evolutionary Biology (1)
- Geomorphology (1)
- Natural Resources Management and Policy (1)
- Natural Resources and Conservation (1)
- Terrestrial and Aquatic Ecology (1)
- Keyword
-
- Research and Technical Reports (13)
- Special Scientific Reports (SSR) (3)
- Data Report Series (DR) (2)
- Platyhelminthes. Helminths. (2)
- Translation Series (TS) (2)
-
- VA (2)
- Benthos -- Virginia -- York River; Estuarine sediments -- Virginia -- York River; Coastal sediments; Estuarine oceanography (1)
- Bioclimatology (1)
- Blue Crabs (1)
- Cargo ships -- Environmental aspects -- Virginia -- Hampton Roads (Harbor) (1)
- Chesapeake Bay (1)
- Chesapeake Bay (Md. and Va.) -- Bibliography (1)
- Estuarine pollution -- Chesapeake Bay Region (Md. and Va.) (1)
- Estuarine pollution -- Chesapeake Bay Region (Md. and Va.) -- Measurement (1)
- Eutrophication -- Measurement (1)
- Fouling organisms -- Virginia -- Hampton Roads (Region); Fouling organisms -- Control; Ocean currents -- Virginia -- Hampton Roads (Harbor) (1)
- Hillsborough Bay (1)
- Molluscan Ecology Program (1)
- Organic water pollutants -- Chesapeake Bay (Md. and Va.) Estuarine sediments -- Chesapeake Bay (Md. and Va.) (1)
- Oyster fisheries--Chesapeake Bay (Va.) (1)
- Oyster fisheries--Virginia (1)
- Oyster--Monitoring (1)
- Oysters--Chesapeake Bay (Va.) (1)
- Physical Sciences Reports (1)
- Phytoplankton (1)
- Radioisotopes in oceanography; Benthos -- Virginia -- York River; Estuarine sediments -- Virginia -- York River; Coastal sediments; Estuarine oceanography; Aquatic biology (1)
- Rivers--Virginia (1)
- Salinity (1)
- Sand -- Chesapeake Bay (Md. and Va.) (1)
- Sewage Pollution (1)
Articles 31 - 46 of 46
Full-Text Articles in Physical Sciences and Mathematics
A Survey And Evaluation Of Shallow Groundwater Contamination Hazards In The State Of Utah, Edward P. Fisk, Calvin G. Clyde
A Survey And Evaluation Of Shallow Groundwater Contamination Hazards In The State Of Utah, Edward P. Fisk, Calvin G. Clyde
Reports
A survey was made to appraise current man-made contamination of shallow groundwater in Utah. Very little has been published on the subject, and most of the information was obtained by personal observation and through interviews of individuals concerned with water quality protection in Utah. After presenting the relevant physiographic, geologic, and hydrologic characteristics of the various regions of Utah and discussing how these relate to groundwater contamination in general, representative groundwater quality hazards in 32 sites or regions in Utah are presented. A very wide range of hazards to groundwater quality was found to exist. These cases cover the range …
The Potential For Groundwater Contamination Along Basin Margins In The Arid West: Alluvial Fans And Lake Features, Calvin G. Clyde, Robert Q. Oaks, Peter T. Kolesar, Edward P. Fisk
The Potential For Groundwater Contamination Along Basin Margins In The Arid West: Alluvial Fans And Lake Features, Calvin G. Clyde, Robert Q. Oaks, Peter T. Kolesar, Edward P. Fisk
Reports
Many towns of the arid west were built upon alluvial fans and upon sites underlain by Pleistocene lake deposits. The objective of this study was to assess the potential impact of these activities of man upon groundwater quality within these geological features. Emphasis was placed on shallow groundwater quality after it was determined that deep groundwater is rarely contaminated at such sites. A reconnaissance of Utah and Nevada was made and four sites underlain by alluvial fans (Willard, Manti, Elsinore, and Spring City) and four sites underlain by lake shore deposits (Hyde Park, Fielding, Providence and Richmond) were selected in …
Fielding Ditch Pipeline Computer Simulation Study, Calvin G. Clyde, J. Paul Tullis, Roland W. Jeppson
Fielding Ditch Pipeline Computer Simulation Study, Calvin G. Clyde, J. Paul Tullis, Roland W. Jeppson
Reports
The Fielding Ditch Company Pipeline is almost 3 miles long and supplies irrigation water under low pressure to adjacent fields through 33 turnouts along its length. The 24-inch non-reinforced concrete pipeline began to experience repeated structural failures soon after it was placed in operation. This study was done for the Soil Conservation Service by the Utah Water Research Laboratory to gather field data on the pipeline operating characteristics, to analyze the hydraulic transients in the pipeline with the help of a computer simulation model, and to suggest modification to protect the pipeline from future failures caused by transient pressures. Following …
Development And Application Of An Index To Assess Nutrient Enrichment In Estuaries : A Report To The Chesapeake Bay Program, U. S. Environmental Protection Agency, Bruce J. Neilson
Development And Application Of An Index To Assess Nutrient Enrichment In Estuaries : A Report To The Chesapeake Bay Program, U. S. Environmental Protection Agency, Bruce J. Neilson
Reports
An index is 11 something used or serving to point out", "a guide", "a sign, token or indication" (.14) +. Indexes* such as those used in books, magazines and newspapers are not the subject of this study. Rather we are concerned with the use of indexes in technical fields. Even these are encountered often in everyday life. For example, a recent front-page newspaper article noted that "the government's index designed to forecast future economic trends dropped .... after rising for six straight months". An editorial column in the same issue addressed the use of "the existing Consumer Price Index as …
Monthly Report On The State Of Rivers 1981, Albert Kuo
Monthly Report On The State Of Rivers 1981, Albert Kuo
Reports
Chiefly graphs showing monthly salinity, temperature, dissolved oxygen distributions at slackwater for the James, York, Pamunkey, and Rappahannock Rivers.
1981: September, October
Fate And Effects Of Experimental Oil Spills In An Eastern Coastal Plain Marsh System : Final Report, M. E. Bender, J. G. Hudgins, R. A. Jordan
Fate And Effects Of Experimental Oil Spills In An Eastern Coastal Plain Marsh System : Final Report, M. E. Bender, J. G. Hudgins, R. A. Jordan
Reports
The objectives of this program conducted over a four year period were to determine the ecological effects, chemical fate and microbial responses of marsh systems to crude oil spills. To conduct these studies in a manner which maximized control, large enclosures were constructed in a natural mesohaline marsh (Figure 1). Both fresh South Louisiana crude and artificially aged South Louisiana crude were studied.
The Consequences Of Nutrient Enrichment In Estuaries, Bruce J. Neilson
The Consequences Of Nutrient Enrichment In Estuaries, Bruce J. Neilson
Reports
A "paper study" was conducted to determine the consequences of nutrient enrichment in an estuary. First, a classification scheme was developed to assign- a "Level of Nutrient Enrichment" to a water body based on concentrations of Total Phosphorus and Total Nitrogen. The impacts of nutrient enrichment on the various uses of estuaries there were described and assessed. Finally, "safe" nutrient levels for Chesapeake Bay and its tributaries were recommended.
Effluent Travel Estimates From Ships Anchored In Chesapeake Bay : A Report To The Virginia State Water Control Board, C. S. Fang, C. S. Welch, T. J. Brooks
Effluent Travel Estimates From Ships Anchored In Chesapeake Bay : A Report To The Virginia State Water Control Board, C. S. Fang, C. S. Welch, T. J. Brooks
Reports
As the world demand for coal has increased, the number of colliers arriving at Hampton Roads, Virginia, to load coal has exceeded the ability of the port to supply the demand. As a result, a substantial backlog of ships waiting to load coal is presently taxing the anchorage capacity of the harbor. A recent estimate is that 130 ships are waiting about 38 days each for their turn at the loading factl1t1es. In addition to the anchorages tn Hampton Roads and the lower James River, new anchorages have been opened to accomodate these ships, one on the southern side of …
Study To Investigate Source And Transport Route Of Marine Organisms (Hydroids And Bryozoans) In Hampton Roads And Current Velocity Profiles Of The Pier 12 Area, Naval Station, Norfolk, Virginia, Robert J. Diaz, Evon P. Ruzecki
Study To Investigate Source And Transport Route Of Marine Organisms (Hydroids And Bryozoans) In Hampton Roads And Current Velocity Profiles Of The Pier 12 Area, Naval Station, Norfolk, Virginia, Robert J. Diaz, Evon P. Ruzecki
Reports
Entrainment of the hydroid (Sertularia argentea) and the fleshly bryozoan (Alcyonidium verrilli) in the sea suction of deep draft naval vessels (carriers) in the area of the Norfolk Naval station has been a recurring problem since the early 60's. These fouling organisms (the term fouling is used in this report to indicate clogging of hull bottom intake grates and cooling system condenser tube sheets and not the growth of organisms on any part of the vessel) are winter species, growing only in the fall and winter and not the summer. Unfortunately they are also the most abundant and widely distributed …
Sediment Mixing By Invertebrates As Shown By 85kr1, Dexter S. Haven, Reinaldo Morales-Alamo, John N. Krauter
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
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, …
Chesapeake Bay Bibliography - Volume V. Virginia And Maryland Waters, Marilyn Neff Loesch
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 …
Relationship Between The Chesapeake Bay Blue Crab And Its Climatological Environment : Oceanographic And Atmospheric Data, Robert E. Harris Jr., Willard A. Van Engel
Relationship Between The Chesapeake Bay Blue Crab And Its Climatological Environment : Oceanographic And Atmospheric Data, Robert E. Harris Jr., Willard A. Van Engel
Reports
Monthly and annual means of 38 oceanographic and atmospheric variables, for the calendar years 1958 through 1975, are presented in tables.
Oyster Spatfall In Virginia Rivers: 1980 Annual Summary, Dexter S. Haven, Paul C. Kendall
Oyster Spatfall In Virginia Rivers: 1980 Annual Summary, Dexter S. Haven, Paul C. Kendall
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 from oyster shells strung on wire and suspended from stakes on public and private beds. The number of spat on shells are 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. Shells planted just before the period of maximum set have the best chance of getting a good strike.
Morphology Of Udonella Caligorum Johnston, 1835, And The Position Of Udonellidae In The Systematics Of Platyhelminths, A. V. Ivanov
Morphology Of Udonella Caligorum Johnston, 1835, And The Position Of Udonellidae In The Systematics Of Platyhelminths, A. V. Ivanov
Reports
The platyhelminth, Udonella, lives on parasitic copepod crustaceans and, according to the present system of classification belongs to monogenetic trematodes (Monogena) among which it is usually placed in the group Monopisthocotylea (Fuhrmann, 1928; Bychowsky, 1937; Dawes, 1946; Sproston, 1946). However, the morphology of Udonella has not yet been studied thoroughly by anyone, and a number of unusual features of the structure, ontogenesis and biology of this form cause doubts with regard to its belonging to the Monogena.
Ontogenesis And Phylogenetic Interrelationships Of Parasitic Flatworms, Boris E. Bychowsky
Ontogenesis And Phylogenetic Interrelationships Of Parasitic Flatworms, Boris E. Bychowsky
Reports
The purpose of this report is to establish relationship among individual groups of parasitic flatworms, namely, among monogenetic trematodes (Monogenea), digenetic trematodes (Digenea), tapeworms proper (Cestoda), and the so-called Cestodaria group (AMPHILINIDAE and GYROCGTYLIDAE). The attempt to establish the above-mentioned relationships is made to a variable degree for different groups. The main point of this report is the establishment of phylogenetic relationship in the Monogenea, not only for the entire group as a whole, but also for the individual families which are members of this group. We feel that another important point is our attempt at clarifying the phylogenetic position …