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Composition, Biomass, And Protein Content Of A Lemna Trisulca L., Invertebrate Community In A Prairie Wetland, Linda J. Meyers
Composition, Biomass, And Protein Content Of A Lemna Trisulca L., Invertebrate Community In A Prairie Wetland, Linda J. Meyers
Electronic Theses and Dissertations
Samples of star duckweed (Lemna trisulca L.) were collected from a South Dakota prairie wetland during the summer 1981. Amphipods and gastropods were the dominant macroinvertebrates found within samples of duckweed in terms of biomass and density. Cladocera were the dominant microinvertebrates found in association with star duckweed. Significant variability was found in the biomass and densities of specific invertebrates with respect to sampling dates. Crude protein values of star duckweed-invertebrate community samples ranged from 7.6 to 18.5% and were found to correlate significantly with protein levels of the duckweed. Crude protein values for star duckweed ranged from 7.1 to …
Culture Of Channel Catfish In East-Central South Dakota Dugout Ponds, Martin Nicholas Dilauro
Culture Of Channel Catfish In East-Central South Dakota Dugout Ponds, Martin Nicholas Dilauro
Electronic Theses and Dissertations
Twenty dugout ponds in east-central South Dakota were stocked 10 May 1980 with fingerling (mean weight 39.4 g, mean total length 108.4 mm) channel catfish (Ictalurus punctatus) at stocking rates of 309, 618, 1,235, and 1,853 fish/ha. Supplemental food was provided in 16 ponds (four at each stocking rate) at a rate of 4% body weight every other day. Fish in four ponds stocked, one at each of the respective stocking rates were not fed. Eleven of the 16 ponds which received feed were considered fit for analysis at the end of the study period, 27 September 1980. Two of …
Rainbow Trout Production And Water Quality In Eastern South Dakota Dugouts, William Lee Vodehnal
Rainbow Trout Production And Water Quality In Eastern South Dakota Dugouts, William Lee Vodehnal
Electronic Theses and Dissertations
Nine-hundred-fifty-four rainbow trout (Salmo gairdneri) were stocked into 18 eastern South Dakota dugouts in April 1980 to determine the feasibility of dugouts for raising annual fish crops. Trout growth was compared between dugouts by stocking rate (1977/ha, 1483/ha, 988/ha, and 494/ha) and feeding combination [fathead minnows (Pimephales promelas) and supplemental feed, supplmental feed, and trout alone]. Chemical physical properties were also monitored in an old and new unstocked dugouts from July 1980 to July 1981. Growth was greater for 988/ha rainbow trout than the other stocking densities during the April 1980 to July 1980 sampling period. Mean total length increased …
Uses Of Figures Of Speech In Selected Speeches Of Jerry Falwell, Mary M. Gill
Uses Of Figures Of Speech In Selected Speeches Of Jerry Falwell, Mary M. Gill
Electronic Theses and Dissertations
As early as 350 B.C. Aristotle was cultivating concepts of language usage. It addition to the principles of clarity, accuracy, appropriateness and vividness, he developed concepts on the uses of the metaphor as a stylistic tool. The study of style and its adaptation continued to the Roman Age and the early study of rhetoric in England. During the eighteenth-century various rhetoricians began analyzing style more closely. Francis Bacon noted "the ill and unfit choice of words wonderfully obstructs the understanding. "He analyzed words and word combinations and their effect on interpretation. Adam Smith instructed that style was the common element …
Growth, Food Habits, And The Relative Effectiveness Of Stocking Rainbow Trout (Salmo Gairdneri) In South-Central South Dakota, Kenneth C. Clodfelter
Growth, Food Habits, And The Relative Effectiveness Of Stocking Rainbow Trout (Salmo Gairdneri) In South-Central South Dakota, Kenneth C. Clodfelter
Electronic Theses and Dissertations
The effectiveness of stocking rainbow trout (Salmo gairdneri) in 47 selected stock ponds in south-central South Dakota was analyzed in 1977 and 1978. Rainbow trout were captured in 31 (66.0%) ponds during the study. Twenty-five of the 31 ponds (80.6%) appeared to have excellent rainbow trout populations. Rainbow trout stocked in ponds with a resident largemouth bass (Micropterus salmoides) population had poor survival. The growth rates and condition factors for 93 and 463 rainbow trout in 1977 and 1978, respectively, were excellent. The average total length for age-groups I and II rainbow trout in 1977 was 195 and 224 mm, …
Survival, Growth, Food Selection, And Alimentary Canal Development Of Intensively Reared Walleyes And Yellow Perch, Gregg Alan Raisanen
Survival, Growth, Food Selection, And Alimentary Canal Development Of Intensively Reared Walleyes And Yellow Perch, Gregg Alan Raisanen
Electronic Theses and Dissertations
Five genera of invertebrates, collected from a municipal sewage lagoon, were fed to newly hatched larval walleyes, (Stizostedion vitreun vitreun), and yellow perch, (Perca flavescens), to document survival, growth, food selection, and alimentary canal development of these fishes. Mean survival of walleyes for the 18 day period after hatching was 14.1%: mean unaccountable mortality was 43.5%. Forty-three percent of the walleyes remaining after 18 days survived an additional 32 days; mean unaccountable mortality was 33.8%. Mean daily length gain over the 50 day period was 0.8 mm/day. The cladoceran, Moina brachiate, was selected for by walleyes and yellow perch; the …
Quantitative Modeling Of Pliocene Depositional Features In Coastal Mississippi, John Baldwin Nelson
Quantitative Modeling Of Pliocene Depositional Features In Coastal Mississippi, John Baldwin Nelson
Electronic Theses and Dissertations
No abstract provided.
A Probabilistic Approach To Fatique Design Of Flexible Pavementsand Evaluation Of Structural Layer Coefficients, Sukumar K. Nair
A Probabilistic Approach To Fatique Design Of Flexible Pavementsand Evaluation Of Structural Layer Coefficients, Sukumar K. Nair
Electronic Theses and Dissertations
No abstract provided.
Mineralogy And Provenance Of Recent Pearl River Bedload Sediments, James Dennis Hatfield
Mineralogy And Provenance Of Recent Pearl River Bedload Sediments, James Dennis Hatfield
Electronic Theses and Dissertations
No abstract provided.
Dynamical Polarization In Selected Pionic Atoms, Michael Nicholas
Dynamical Polarization In Selected Pionic Atoms, Michael Nicholas
Electronic Theses and Dissertations
No abstract provided.
Poe And The Perfectability Of Man, Richard A. Fusco
Poe And The Perfectability Of Man, Richard A. Fusco
Electronic Theses and Dissertations
No abstract provided.
Patterns Of Buildings And Aspects Of Cities As Subjects / By Timothy William Smith, Timothy William Smith
Patterns Of Buildings And Aspects Of Cities As Subjects / By Timothy William Smith, Timothy William Smith
Electronic Theses and Dissertations
No abstract provided.
The Status Of Computer-Related Elective Courses In Public Secondary Schools In Tennessee, Nancy H. Hickman
The Status Of Computer-Related Elective Courses In Public Secondary Schools In Tennessee, Nancy H. Hickman
Electronic Theses and Dissertations
The problem was to determine the status of computer-related elective courses in public secondary schools in Tennessee. A descriptive research design was used for this study. A search was made to locate public secondary schools which housed grade twelve and whose curricula were in keeping with State requirements for a diploma. A search of Preliminary Reports was made of identified schools to determine those which offered a computer-related elective course. A questionnaire was sent to teachers of computer-related course electives. The data were examined and presented in narrative form with the use of appropriate tables. The following findings emerged: (1) …
Modeling And Testing Of A Solar Energy Intensifier System, Rita M. Polak
Modeling And Testing Of A Solar Energy Intensifier System, Rita M. Polak
Electronic Theses and Dissertations
Widespread adoption of solar energy as an alternate energy source is dependent upon careful engineering design. Mathematical models are among the best engineering design tools, because design alternatives can be evaluated without extensive testing and solar systems can be sized and oriented to suit each particular application. Research has been conducted at South Dakota State University since 1976 to develop, through design and testing, a portable, low cost, concentrating solar system for agricultural applications. Solar energy can readily be substituted for other energy sources in agriculture because many such applications do not require a continuous, uninterrupted energy supply and may …
Impact Of Various Factors Upon Pavement Condition And Maintenance Expenditures Of South Dakota Primary Arterial Roads, Mark Hanson
Impact Of Various Factors Upon Pavement Condition And Maintenance Expenditures Of South Dakota Primary Arterial Roads, Mark Hanson
Electronic Theses and Dissertations
In the years 1965-1980; 59 branchline railroads with a combined mileage of 2,299.33 were abandoned. The heaviest wave of abandonments occurred in the years 1978-1980 with 33 branchlines with combined mileage of 1,592.5 being abandoned. As rail lines are abandoned, the traffic previously carried on them is shifted to the only alternative, the highway system. The traffic either is shipped directly by truck to its ultimate destination or it is shipped to a point where it can be loaded on a train. Either alternative means more traffic upon the highway system. However, the highway system may be ill-prepared to cope …
Solar Energy Intensifier-Thermal Energy Storage System Evaluation For Ventilation Air Pre-Heating, Scott R. Astleford
Solar Energy Intensifier-Thermal Energy Storage System Evaluation For Ventilation Air Pre-Heating, Scott R. Astleford
Electronic Theses and Dissertations
Solar energy is widely recognized as an essentially inexhaustible energy source that has the potential to make major contributions to energy needs of various agricultural and industrial operations. Low quality heat produced from a low-temperature, inexpensive solar collector can be efficiently utilized to provide supplemental heat to livestock confinement buildings, harvested crop drying, or service water heating. Ample area for collectors, energy capacity for back-up and peak demand, and a wide range of applications enhance the potential for agricultural solar systems. Several factors of consideration exist in the design and development of a successful solar heating system. First, thermal energy …
Home Range, Home Range Expansion, Dispersal, And Mortality Of Juvenile Red Foxes In Southeastern South Dakota, Floyd M. Demaray
Home Range, Home Range Expansion, Dispersal, And Mortality Of Juvenile Red Foxes In Southeastern South Dakota, Floyd M. Demaray
Electronic Theses and Dissertations
Data from aerial and landowner surveys showed that red fox (Vulpes vulpes) families on the Sinai study area decreased from 13 (5.2 per township) in 1976 to 11 (4.4 per township) in 1977. The majority (88%) of the active red fox dens was located in pastures and idle lands although these cover types constituted only 24% of the available cover. Twenty-nine juveniles and 3 adults were captured and marked during spring, 1976. Trappers and hunters returned 62% of the tags placed on juvenile foxes. During spring, 1977, 15 juveniles and 2 adult red foxes were marked. Three juveniles were subsequently …
Woodpecker Nesting Habitat In A Prairie River Woodland, J. Barry Parrish
Woodpecker Nesting Habitat In A Prairie River Woodland, J. Barry Parrish
Electronic Theses and Dissertations
Differences in nest site selection of the common flicker (Colaptes auratus), yellow-bellied sapsucker (Sphyrapicus varius), downy woodpecker (Picoides pubescens), and red-headed woodpecker (Melanerpes erythrocephalus) were studied on the Big Sioux River riparian forest of eastern South Dakota during 1980 and 1981. Nest site preferences were compared using two-group stepwise discriminant analysis. Randomly selected potential nest trees showing no previous signs of cavity excavation were included as control groups. The yellow-bellied sapsucker-red-headed woodpecker function was the most efficient in separating groups because both species had specific nest site preferences. Sapsuckers nested only in live green ash (Fraxinus pennsylvanica), characteristically in park-like …
Growth And Survival Of Largemouth Bass In Newly Stocked South Dakota Impoundments, Clifton C. Stone
Growth And Survival Of Largemouth Bass In Newly Stocked South Dakota Impoundments, Clifton C. Stone
Electronic Theses and Dissertations
The present study was designed to evaluate the effect of five different stocking combinations and differences in climatic and morphological conditions within South Dakota on initial growth and survival of the largemouth bass (Micropertus salmoides). Forage species stocked with bass included gold shiners (Notemigonus crysoleucas), fathead minnow (Pimephales promelas), black bullhead (Ictalurus melas), and bluegill (Lepomis macrochirus). Bass only stocking was also evaluated. First eyar survival values for 16 eastern South Dakota ponds ranged from 1 to 100%, with a mean of 50.2%. Bass exhibited poorest survival when stocked with black bullheads. Analysis of variance indicated no significant difference (P …
Populations Of Nitrogen-Fixing Bacteria In Soil And Rhizospheres In Eastern South Dakota, Edward B. Anderson
Populations Of Nitrogen-Fixing Bacteria In Soil And Rhizospheres In Eastern South Dakota, Edward B. Anderson
Electronic Theses and Dissertations
A search for alternate sources of fixed nitrogen for crop production has been caused by the rising cost of petroleum used in manufacturing nitrogen fertilizers. Nitrogen in its elemental form, N2, is quite stable, and all organisms except a few of the prokaryotic microorganisms can utilize nitrogen only in some chemically combined form. Those microorganisms which can utilize elemental nitrogen are a potential source of fixed nitrogen to crops. Rhizobium is a genus of nitrogen-fixing bacteria which form nodules on the roots of leguminous plants. This is a symbiotic relationship; the plants supply photosynthate to the bacteria which use that …
The Effects Of Wage-Incentive Standards Of Industrial Productivity In Eastern South Dakota, Ronald C. Hegge
The Effects Of Wage-Incentive Standards Of Industrial Productivity In Eastern South Dakota, Ronald C. Hegge
Electronic Theses and Dissertations
In Japan, productivity increased by an average of 9.9% from 1960 to 1973 and by 3.6% from 1973 to 1978. In West Germany, during the same periods, it increased by 5.8% and 4.2%, while in the United States the increases were only 2.9% from 1960 to 1973 and less than half that from 1973 to 1978. As a result, United States competitiveness in world markets has declined and inflation and unemployment have become not only our major economic problems but great social problems as well." Although all of our nation's economic problems cannot be blamed on a low rate of …
Initial Growth And Survival Of Bluegills And Black Bullheads Stocked With Largemouth Bass In South Dakota Ponds, James J. Shelley
Initial Growth And Survival Of Bluegills And Black Bullheads Stocked With Largemouth Bass In South Dakota Ponds, James J. Shelley
Electronic Theses and Dissertations
Initial growth and survival rates were estimated for bluegills (Leponis macrochirus) and black bullheads (Ictalurus melas) stocked simultaneously with largemouth bass (Micropterus salmoides) in ponds throughout South Dakota. Mean first year survival for bluegills and black bullheads stocked in eastern South Dakota ponds was 28.6% and 67.7%, respectively. Differences in first year bluegill growth throughout the state were not detected. Total lengths for bluegills averaged 52.4 mm after one growing season statewide and 137.1 mm after two growing seasons in southeastern South Dakota ponds. Significant (P<.05) geographical differences in first year growth of black bullheads were detected with mean lengths ranging from 67.7 mm in northwest ponds to 115.5 mm in southeast ponds. The average total length for black bullheads after two growing season in southeastern South Dakota ponds was 215.2 mm. The combined effects of pH, turbidity, and bicarbonate alkalinity accounted for 67.5% of the variation in first year bluegill growth. The pond parameters total number of growing days, fish present prior to stocking, and pond surface area when combined accounted for 73.9% of the variation in first year black bullhead growth. Differences in bluegill relative weight values were not detected throughout South Dakota; the average for the state was 105.2. Mean black bullhead condition factors (K) for fish with total lengths between 128 and 191 mm were 1.85 and 1.45 for pre- and post-spawning periods, respectively. Bullheads probably spawned between 29 May and 26 June 1980.
Movement And Distribution Of Esocids And Forage Fishes In A Power Plant Cooling Reservoir, Douglas T. Henley
Movement And Distribution Of Esocids And Forage Fishes In A Power Plant Cooling Reservoir, Douglas T. Henley
Electronic Theses and Dissertations
One Muskellunge (Esox masquinongy) and 2 northern pike (E. Lucius) were surgically implanted with untrasonic transmitters and tracked in a South Dakota cooling reservoir from June 1979 to June 1980. The fishes inhabited the intake area of the reservoir during the summer (temperature range, 27.5 – 31.5˚ C) and the discharge area during the winter (temperature range, 4.5 – 31.5˚C). In the spring and fall, the fishes were located throughout the reservoir (temperature range, 12.0 – 28.5˚C). Highest rates of movement for the esocids were recorded during the spring (675 – 1,100 m/day). The lowest rates were recorded during late …
Jackson County, South Dakota : An Area Study, Jeffrey A. Faunce
Jackson County, South Dakota : An Area Study, Jeffrey A. Faunce
Electronic Theses and Dissertations
The term "Geography" has been burdened with countless definitions throughout the development of the discipline. Quite simply, geography is the study of spatial variations on the surface of the earth. Determining how the surface of the earth is divided, and how these divisions should be studied, involves an important concept in Geography. A constant point of conversation for the evolving geographer is the difference between a region and an area. Jackson County is an extremely interesting part of our country. Throughout its history it has been the recipient of various negative descriptions. The Indians called the area "mako sica" meaning …
Preparation And Spectral Properties Of Substituted Heterocyclobutan-3-Ones, Peter Nickias
Preparation And Spectral Properties Of Substituted Heterocyclobutan-3-Ones, Peter Nickias
Electronic Theses and Dissertations
In the past decade some new interpretations of orbital interactions in small rings have resulted from the observations of valence shell ionization potentials. These ionization potentials were obtained from a technique known as photoelectron spectroscopy, most often referred to as PES. Photoelectron spectroscopy is the branch of electron spectroscopy in which the ionizing process is brought about by vacuum ultraviolet radiation. It is thus concerned with the ejection of electrons from valence orbitals of molecules. What PES does is measure the binding energies of electrons in a molecule by determining the kinetic energies of these electrons when they are ejected …
Conductor Losses In Microstrip Multiconductor Transmission Lines, Zoran Ratkovic
Conductor Losses In Microstrip Multiconductor Transmission Lines, Zoran Ratkovic
Electronic Theses and Dissertations
No abstract provided.
Investigation Of A Burial Erosion Surface By Surface Resistivity Methods, Little Tallahatchie River Valley, Panola County, Mississippi, David M. Jones
Investigation Of A Burial Erosion Surface By Surface Resistivity Methods, Little Tallahatchie River Valley, Panola County, Mississippi, David M. Jones
Electronic Theses and Dissertations
No abstract provided.
The Effect Of Polymer Additives On The Cavitation Threshold Of Water, James Eugene Brosey
The Effect Of Polymer Additives On The Cavitation Threshold Of Water, James Eugene Brosey
Electronic Theses and Dissertations
No abstract provided.
Computation Of Electrical Characteristics Of Asymmetric Microstrip Multiconductor Transmission Lines, Srinivas Bokka
Computation Of Electrical Characteristics Of Asymmetric Microstrip Multiconductor Transmission Lines, Srinivas Bokka
Electronic Theses and Dissertations
No abstract provided.
The Effect Of The Personnel Incentive Grants Program On Mississippi Public Library Administrative Units, Kathryn Graham Merkle
The Effect Of The Personnel Incentive Grants Program On Mississippi Public Library Administrative Units, Kathryn Graham Merkle
Electronic Theses and Dissertations
No abstract provided.