Physical Sciences and Mathematics Commons^™

Pasture Species Investigations High Rainfall Area., D. A. Nicholas

Experimental Summaries - Plant Research

Selection of an alternative to cv Woogenellup clover. 79MT48, Mount Barker research station. 79MA13, Palgarup. 80AL59, Narribup. 80BR18, Mayanup. 80BU7, Vasse. 81NA37, North Bannister. 81PE6, Byford. 82NA36, West Wandering. 82AL72, South Stirlings. Screening of midseason to late maturing lines of subterranean clover. 82BU12, Karridale. 82AL71, Cuthbert.

Benthic Testacida (Rhizopoda, Protozoa) Of Lake Washington, Brevard County, Florida, Haydee Lena

Ocean Engineering and Marine Sciences Faculty Publications

Benthic Testacida from sediments of Lake Washington were studied. The Testacida were extracted using standard foraminiferologic techniques. The determined taxa were photographed using scanning electron microscopy. Twenty-one taxa were found. The majority were cosmopolitan and the most abundant were Difflugia pyriformis and Centropyxis compressa. The Testacida guild was similar to that previously studied in other American and European lakes. However, the type and size of the species were different from those found in soil and mosses.

Two-Dimensional, Intratidal Model Study Of Salinity Intrusion Structure And Motion In Partially-Mixed Estuaries (Virginia), Carl F. Cerco

Dissertations, Theses, and Masters Projects

A two-dimensional, longitudinal-vertical model for partially-mixed estuaries has been developed. The model provides intratidal predictions of surface level, velocity, and salinity through a semi-implicit finite-difference solution to the continuity and momentum equations and an explicit finite-difference solution to the salinity equation. The model was verified through comparison with analytical solutions, laboratory data, and prototype data. Following verification, the model was used to simulate the destratification-stratification cycle which occurs in the James River Estuary, Virginia, coincident with the spring-neap tidal cycle. In a second application to the James, a simulation of the movement of the salinity intrusion following a storm-generated freshwater …

Oilseed Agronomy., A. G. Mckay

Experimental Summaries - Plant Research

Time of nitrogen application on rapeseed, 82MT39. Time of sowing x rate of nitrogen on rapeseed, 82MA16, 82AL42. Oilseed phenology trials brassica species, 82A5, 82BA40, 82C35, 82E30, 82M33, 82MT36, 82WH29. Rapeseed windrowing, time of harvest, 82MT35, 82AL50. Shattering differences among rapeseed lines, 82MT37, 82WH30. Wesroona reselection evaluation, 82MT38. Triazine herbicide resistant rapeseed, 82GL12. Podquat on rape seed 82MT54. Sunflower varieties, winter sown, 82GE31

Wave Refraction By Warm Core Rings, George R. Mapp

Dissertations, Theses, and Masters Projects

No abstract provided.

Effects Of Disruptive Grazing By The Mud Snail Ilyanassa Obsoleta On Mudflat Nematode Populations, David Ludwig

Dissertations, Theses, and Masters Projects

Population densities of the mud snail Ilyanassa obsoleta were manipulated in caging experiments on a salt marsh mudflat and in laboratory microcosms. Mud snails outcompete nematodes for food resources, but may increase resources available to deposit feeding groups. Mud snails reduce annelid (polychaete and oligochaete) populations by substrate disruption. Reduced annelid densities provide the nematode community with some release from predation and competition. In mudflat sediments, the nematode community responds to both primary (predation) and secondary (envirorm1ental release, food competition) interactions. Multiple levels of interactive coupling should be considered in any systems level investigation in this habitat.

Zooplankton Communities In Chesapeake Bay Seagrass Systems, Cathy Elizabeth Meyer

Dissertations, Theses, and Masters Projects

No abstract provided.

Waterfowl Utilization Of A Submerged Vegetation (Zostera Marina And Ruppia Maritima) Bed In The Lower Chesapeake Bay, Elizabeth W. Wilkins

Dissertations, Theses, and Masters Projects

No abstract provided.

The Distribution And Ecology Of Gammaridean Amphipods In The Plankton Of The Middle Atlantic Bight, Cathy J. Womack

Dissertations, Theses, and Masters Projects

No abstract provided.

The Distribution Of Dissolved Silica And Particulate Biogenic Silica In The James, York And Rappahannock Estuaries, Virginia, Gary F. Anderson

Dissertations, Theses, and Masters Projects

No abstract provided.

Life History And Management Of Spiny Dogfish, Squalus Acanthias, Off The Northeastern United States, Marta Nammack

Dissertations, Theses, and Masters Projects

No abstract provided.

Utilization Of A Zostera Marina And Ruppia Maritima Habitat By Four Decapods With Emphasis On Callinectes Sapidus, Deborah L. Penry

Dissertations, Theses, and Masters Projects

No abstract provided.

Analysis Of Population And Price Aspects Of The Virginia Hard Clam (Mercenaria Mercenaria) Fishery, Andre C. Kvaternik

Dissertations, Theses, and Masters Projects

No abstract provided.

A Study Of Nutritional Requirements Of The Larvae Of The American Oyster (Crassostrea Virginica), Fu-Lin E. Chu

Dissertations, Theses, and Masters Projects

The purpose of this study is to obtain information for the formulation of artificial diets for larvae of the American oyster (Crassostrea virginica) and to test procedures related to presenting these diets to the oyster larvae. In order to determine the nutrient components usually provided in larval diets, biochemical analyses of lipids and fatty acids, proteins and amino acids and polysaccharide carbohydrates were performed on five algae species used as a food source for oyster larvae. These algae are Chlorella sp., Pyramimonas virginica, Pseudoisochrysis paradoxa, Pavlova (Monochrysis) lutheri and Isochrysis galbana. The biochemical analyses indicate that the nutritional value of …

Deep-Sea Bottom Fishes Caught On The 14th Cruise Of The R/V Akademik Kurchatov, T. S. Rass, V A. Grigorash, V. D. Spanovskaya, Y. N. Shcherbachev

Reports

Captures of deep-sea fish in waters of the American Mediterranean Sea and adjacent Bahama-Bermuda region of the Atlantic Ocean prior to our work were performed by a series of expeditions: Coast and Geodetic Survey of the USA ("Blake," 1877-1880), New York Zoological Society ("Zaca" and "Arcturus," 1929-1931), Bingham Oceanographic Laboratory of Yale University, USA ("Pawnee," 1927), the Danish Carlsberg Foundation ("Dana," 1920-1922 and 1928-1930), Bureau of Commercial Fisheries, USA ("Oregon," "Oregon II" and others between 1950 and 1960), and the University of Miami ("Pillsbury," 1969). However, only the latter of these expeditions working in the region of the Puerto Rico …

Benthic Resting Cysts Of Gonyaulax Monilata Howell And Their Relationship To Red Tides In The Indian River, Florida, Kevin C. Owen, Dean R. Norris

Ocean Engineering and Marine Sciences Faculty Publications

Gonyaulax monilata cysts were found in the sediments from 13 of 37 stations sampled in the Indian River, Florida. The distribution of cysts appears to be the result of 2 unrelated phenomena. In areas where blooms have occurred in the past, the lack of circulation in the lagoon allows the cysts to accumulate. South of Turkey Creek, cysts are found associated with shellfish beds where no blooms have been reported. It is suggested these cysts have been introduced into shellfish regions with oysters which are annually rafted from areas where G. monilata blooms occur. Blooms of this toxic dinoflagellate can …

Climate Data Use And Users In Connecticut, P.A. Palley, D.R. Miller

Storrs Agricultural Experiment Station

No abstract provided.

Volume 5, Number 12 (December 1981), The Solar Ocean Energy Liaison

The OTEC Liaison

No abstract provided.

Optimum Yield And The Fcma: Uneven Distribution Of Management Burden, Herrick J. Johnson

Marine Affairs Theses and Major Papers

Until the establishment of the Fishery Conservation and Management Act of 1976 (FCMA), fish outside the United States' twelve mile fishery zone were, according to international law, common property and belonged to the nation or individual that caught them. This common property law was based on the concept that fish resources were so large that no amount of fishing would interfere with the right of others to catch fish. Modern technology, however, has created equipment that enabled foreign and domestic fishermen to over-fish the resource. A reduced domestic catch led coastal fishermen to support a bill that unilaterally extended the …

A Salt And Water Balance Model For A Silt Loam Soil Cropped To Rice And Soybean, J. T. Gilmour, J. A. Ferguson, B. R. Wells

Technical Reports

A computer model was developed which described salt and water balances for a silt loam soil common to the Grand Praire physiographic region of Arkansas. A ten year period of weather data (1966-75) was used as input data for two divergent cases in regard to salt accumulation. Case one was a rice-soybean rotation with soybean irrigated, while case two was a rice-soybean-soybean rotation with soybean not irrigated. Salts considered were calcium, magnesium, sodium, sulfate and chloride as well as the precipitate, calcium carbonate. Where soybeans were not irrigated less evapotranspiration, more infiltration and less runoff were observed during the fallow …

Radionuclides In Dardanelle Lake In The Area Of The Nuclear I Facility: 1979-1981, D. M. Chittenden Ii

Technical Reports

The variations of the concentrations of 90Sr and 137Cs at four stations in Dardanelle Reservoir were analyzed as functions of two parameters: concentration of ionic species and the activity released, Ar, from the two 900 Mw reactors which use the reservoir as a source of cooling water. Multiple regression analyses were performed on the radionuclide concentrations using the two parameters as predictors. The analyses indicated that 90Sr is in a state of equilibrium between the solution and the suspended sediment. The position of the equilibrium was found to be quite sensitive to changes in the concentration of alkaline earth cations, …

Mid‐Level Intrusions At The Continental Shelf Edge, Christopher S. Welch

VIMS Articles

Observations across the continental shelf offshore from New Jersey in late summer 1976 show an intrusion of saline water at the mid level of the water column across the shelf edge front, which appears in density only as an offshore thickening of the pycnocline. This internal density field produces horizontal pressure gradient forces within the pycnocline in the onshore direction. These forces, in the linearized equation of motion with a constant eddy viscosity, drive a circulation which resembles a double Ekman spiral for internal pressure vertical distributions which are thin with respect to the Ekman depth. For thick pressure distributions, …

Volume 5, Number 11 (November 1981), The Solar Ocean Energy Liaison

The OTEC Liaison

No abstract provided.

A Benefit Cost Analysis Of A Soil Erosion Control Program For The Northern Watershed Of Lake Chicot, Arkansas, C. Tim Osborn, Alan D. Mcqueen, Robert N. Shulstad

Technical Reports

Lake Chicot, a 5,025-acre oxbow lake created by the ancient meandering of the Mississippi River, is located near the town of Lake Village in Chicot County of southeastern Arkansas (Fig. 1). Today the lake is separated into a northern basin of 1,154 acres and a southern basin of 3,871 acres by a levee maintained by the Arkansas Game and Fish Commission (Fig. 2). The entire lake once offered excellent fishing and recreational benefits. But with channelization in the drainage basin and final closure of the Cypress Creek gap along the Mississippi River levee in 1920, drainage and flood waters from …

Volume 5, Number 10 (October 1981), The Solar Ocean Energy Liaison

The OTEC Liaison

No abstract provided.

Feasibility Study For A Beaver Reservoir Agricultural Water Supply Volume I, James Ferguson, Robert Shulstad, William Bateman

Technical Reports

An irrigation district of approximately 30,000 acres has been proposed to be located in Washington and Benton Counties in Northwest Arkansas utilizing water from Beaver Reservior. This report on the economic benefits of such a district is done under contract No. DACW03-81-C for the U.S. Army Corps of Engineers by the Water Resources Research Center at the University of Arkansas.

Feasibility Study For A Beaver Reservoir Agricultural Water Supply Volume Ii, James Ferguson, Robert Shulstad, William Bateman

Technical Reports

An irrigation district of approximately 30,000 acres has been proposed to be located in Washington and Benton Counties in Northwest Arkansas utilizing water from Beaver Reservior. This report on the economic benefits of such a district is done under contr

The Ecology Of Maine's Intertidal Habitats : A Report Prepared For The Maine State Planning Office, Peter F. Larsen, Lee F. Doggett

Maine Collection

The Ecology of Maine's Intertidal Habitats : A Report Prepared for the Maine State Planning Office

by Bigelow Laboratory for Ocean Sciences (Authors: Peter F. Larsen and Lee F. Doggett) , 1981.

Contents: Acknowledgements / List of Tables / List of Figures / Chapter 1 - Introduction / Chapter 2 - Human Impact on Intertidal Fauna / Chapter 3 - A Primer of Intertidal Ecology / Chapter 4 - A Sampler of Intertidal Species / Chapter 5 - Methodology / Chapter 6 - Results of Faunal Studies / Appendix 1 - Habitats With Date Sampled / Appendix 2 - List …

Water Wave Refraction With Non-Linear Theory, Im Sang Oh

OES Theses and Dissertations

Two different kinds of wave refraction models are formulated in the present study using Stokes' third order wave theory. One type of model is utilized in a parametric study employing several different topographies. Wave trajectories obtained from this model, when obtained by using first and third order wave theory with and without the consideration of energy dissipation, show considerable differences. These differences are examined in more detail for a bottom of constant slope: (1) An approximate 10% difference occurs between the refraction coefficients obtained using the first and the third order wave theory. (2) Considerably different ray trajectories are detected …

A Quantitative Description Of Migratory Behavior Of The Brown Shrimp (Penaeus Aztecus) With Applications In Fisheries Management, Anne Madolyn Babcock

OES Theses and Dissertations

A quantitative description of the migratory behavior of the brown shrimp, Penaeus aztecus, was established using the density approach. A theoretical time density was estimated by the proportion of catch and catch per boat hour NOAA-NMFS fisheries statistics collected in Pamlico Sound, the Neuse River, and Core Sound. A clear quantitative description of brown shrimp migratory timing is found in the time densities. The impact of various physical tactors on the progress of the fishery in time and space can be objectively evaluated by using the time density statistics as dependent variables in modeling efforts. The distributions also enable …