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- Reservoirs (3)
- Eutrophication (2)
- Phytoplankton (2)
- Water quality (2)
- Zooplankton (2)
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- Alternative water resources (1)
- Ammonia (1)
- Arkansas (1)
- Arkansas Algae (1)
- Carbon Dioxide (1)
- Chemical content (1)
- Chemical flux (1)
- Chlorides (1)
- Chlorophyll (1)
- Cladocera (1)
- Continuous flow turbidimeter (1)
- Copepod diversity (1)
- Effluents (1)
- Fayetteville (1)
- Field observations (1)
- Fish health; water quality (1)
- Insecticide (1)
- Larvicide (1)
- Man-made Lakes (1)
- Mass balance studies (1)
- Mosquito abatement (1)
- Nitrate (1)
- Nitrates (1)
- Oxygen (1)
- PH (1)
Articles 1 - 9 of 9
Full-Text Articles in Physical Sciences and Mathematics
Sodium, Potassium, Calcium And Magnesium Content Of Northwest Arkansas Rain Water In 1973 And Trace Metal Analyses Of 1974 Rains, G. H. Wagner, R. W. Holloway
Sodium, Potassium, Calcium And Magnesium Content Of Northwest Arkansas Rain Water In 1973 And Trace Metal Analyses Of 1974 Rains, G. H. Wagner, R. W. Holloway
Technical Reports
No abstract provided.
Build-Up Of Mineral Content In Lake Dardanelle And The Effect On Zooplankton, Tom N. Palko
Build-Up Of Mineral Content In Lake Dardanelle And The Effect On Zooplankton, Tom N. Palko
Technical Reports
No abstract provided.
Distribution Of Trace Metals In A Warm Water Release Impoundment, J. Nix
Distribution Of Trace Metals In A Warm Water Release Impoundment, J. Nix
Technical Reports
A water quality study of the DeGray Reservoir, Arkansas, was conducted beginning immediately following the beginning of impoundment through the first year in which the reservoir was operated near normal pool elevation. DeGray Reservoir is the first major dam in Arkansas to be equipped with upper level release capabilities. Temperature, dissolved oxygen, and turbidity were measured in situ at stations located over the old river channel. Samples were taken from selected levels within the water column at each station and analyzed for the following parameters: pH, sodium, potassium, calcium, magnesium, nitrate, phosphate, sulfate, chloride, fluoride, alkalinity, COD, iron, manganese, copper, …
Automation Of The Continuous Coagulation Monitor, Dee Mitchell, James J. Oskowis
Automation Of The Continuous Coagulation Monitor, Dee Mitchell, James J. Oskowis
Technical Reports
The development of automation in the past 50 years has paralleled the accelerating growth of today’s vast technological society. Automatic control systems are indispensable extensions of man's brain that enable him to monitor and regulate his complex environment. The principles of automatic control have a wide range of applications and interests in virtually every scientific field. The need for automatic control systems in vital applications of environmental engineering is both real and urgent. Extensive pollution has resulted in unavoidable water re-use and in the inevitable establishment of stringent effluent standards. Both water and wastewater treatment processes have necessarily become more …
Limnological, Ichthyological, And Parasitological Investigations On Arkansas Reservoris In Relation To Water Quality, John S. Carter, Carl E. Hoffman, Larry L. Olmsted, Raj V. Kilambi, Donald G. Cloutman, David A. Becker
Limnological, Ichthyological, And Parasitological Investigations On Arkansas Reservoris In Relation To Water Quality, John S. Carter, Carl E. Hoffman, Larry L. Olmsted, Raj V. Kilambi, Donald G. Cloutman, David A. Becker
Technical Reports
Lake Fort Smith, a 525 acre (212 ha) reservoir, was impounded in 1936 as a water supply for the city of Fort Smith. The reservoir is located on Clear Creek (Frog Bayou), a tributary of the Arkansas River, in the Boston Mountains 28 miles (45 km) northeast of the city of Fort Smith in Crawford County, Arkansas. A map and morphometric characteristics of Lake Fort Smith are given in Fig. 1 and Table I (Hoffman, 1951; Nelson, 1952). In 1956 Lake Shepherd Springs, a 750 acre (304 ha) impoundment, was created one mile upstream of Lake Fort Smith (Rorie, 1961). …
Environmental Evaluation Report On The Big Mulberry Creek Basin In Franklin, Madison, Newton, Johnson And Crawford Counties, Arkansas, Edward E. Dale Jr.
Environmental Evaluation Report On The Big Mulberry Creek Basin In Franklin, Madison, Newton, Johnson And Crawford Counties, Arkansas, Edward E. Dale Jr.
Technical Reports
The environmental evaluation report which follows is based on information supplied by the Corps of Engineers, Little Rock District, available literature, field observations made during the summer of 1972, and results of research now in progress on natural features of the Big Mulberry Basin. Since most major dams, levees, and flood retarding structures now in existence in the Ozarks have been constructed since about 1940, opportunities to make long term studies of their effects have been limited. Also, the natural vegetation, fauna, and archeology of the Big Mulberry Basin have not been extensively investigated, but available sources provide enough information …
Limnetic Zooplankton Dynamics In Beaver Reservoir Including An Inventory Of Copepod Species And An Evaluation Of Vertical Sampling Methods, Eugene H. Schmitz
Limnetic Zooplankton Dynamics In Beaver Reservoir Including An Inventory Of Copepod Species And An Evaluation Of Vertical Sampling Methods, Eugene H. Schmitz
Technical Reports
There can be little doubt that the development of primary food sources (i.e. plankton) is an important factor contributing to fish production. Applegate and Mullan (1968) report that an exceptional sport fish harvest is generally associated with the development of new reservoirs, although the precise reasons for such interrelations are not known. Kramer and Smith (1962) demonstrated the tendency of bass fingerlings to feed on Cladocera in proportion to the latter's abundance, and Hodson (1966) reported the same basic pattern for largemouth and spotted bass fingerlings in Beaver Reservoir. Applegate and Mullan (1969) analyzed the digestive tract contents of larval …
Effects Of Mosquito Control Chemicals On Aquatic Fauna, J. L. Lancaster Jr., M. V. Meisch
Effects Of Mosquito Control Chemicals On Aquatic Fauna, J. L. Lancaster Jr., M. V. Meisch
Technical Reports
No mosquito abatement districts have ever been organized in Arkansas. Mosquito control efforts have been largely adulticiding operations by either aerial application or ground thermal fogging machines. Practically no chemical applications have been directed at the larval stage in residual water in ditches and depressions from which adult populations arise. Some larviciding with ethyl parathion has been done in ricefields. Although the treatment is very effective in mosquito reduction, voluntary treatment has not been completely successful. Because relatively little insecticide has been used as a larvicide in Arkansas, it was possible to evaluate the effect of recommended larvicides on non-target …
Biochrome Analysis As A Method For Assessing Phytoplankton Dynamics Phase I, Richard L. Meyer
Biochrome Analysis As A Method For Assessing Phytoplankton Dynamics Phase I, Richard L. Meyer
Technical Reports
Selected chemical, physical and biological parameters were determined for a man-made lake, Beaver Lake, on the White River of Arkansas and Missouri. The research program determined the qualitative and quantitative aspects of the temporal and spatial distribution of the algal subcommunities. It was determined that the epipelic, epilithic, epizooic and metaphytic subcommunities had little influence on the euplanktonic subcommunity. The relationship between the qualitative and quantitative analysis of the biochromes chlorophyll-a, -b, and -c and the phytoplankton species clustered into biochrome sets is discussed. The temporal and spatial distributional patterns of temperature, oxygen, ammonia-N, nitrate-N, ortho phosphate-P and silicates are …