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Full-Text Articles in Environmental Sciences
Ichthyofauna Of The Village Creek System, Anthony Holt, George L. Harp
Ichthyofauna Of The Village Creek System, Anthony Holt, George L. Harp
Journal of the Arkansas Academy of Science
Village creek is a lowland stream lying in the Mississippi Embayment in Randolph, Lawrence and Jackson counties in northeastern Arkansas. The stream has been channelized in Randolph and Lawrence counties as have most of its tributaries. The Jackson County portion of the stream has not been channelized. Twelve sites were sampled seasonally by seining along Village Creek and its tributaries. In addition to seasonal work, six sites were sampled from one to three times each by several methods. A total of 8000 specimens was collected by all means used (7754 at seasonal sites and 246 at supplemental sites). Forty-two species …
Environmental Analysis Of The Caddo River And Its Tributaries: Comparison Of Water Quality During 1992 With 1974-75, Kelly L. House, Jimmy D. Bragg, Clark Kuyper, T. Kent Thomas, C. Renn Tumlison
Environmental Analysis Of The Caddo River And Its Tributaries: Comparison Of Water Quality During 1992 With 1974-75, Kelly L. House, Jimmy D. Bragg, Clark Kuyper, T. Kent Thomas, C. Renn Tumlison
Journal of the Arkansas Academy of Science
Environmental data related to water quality of the Caddo River and its tributaries were collected from March - October, 1992, and compared with data from August, 1974 - May, 1975. Bacterial, chemical and physical parameters were investigated at six river locations and thirteen tributary sites. Ammonia, nitrates, soluble phosphorus, turbidity and fecal coliform were significantly lower, and sodium and potassium were significantly higher in 1992 than during the previous study. Bacterial loading exceeded EPA criteria at some locations during both studies.
Effects Of Domestic Wastewater Effluent On The Water Quality And Aquatic Macroinvertebrates In A Sharp County, Arkansas Stream, Linda E. Moss, George L. Harp
Effects Of Domestic Wastewater Effluent On The Water Quality And Aquatic Macroinvertebrates In A Sharp County, Arkansas Stream, Linda E. Moss, George L. Harp
Journal of the Arkansas Academy of Science
The purpose of this study was to determine whether the effluent of the Ash Flat Wastewater Treatment Plant changes the water quality or aquatic macroinvertebrate community structure of North Big Creek. Weekly water samples were analyzed for pH, N, P, COD, TSS and fecal coliform bacteria from 17 June to 19 August 1992. Aquatic macroinvertebrates were collected biweekly using a Turtox Indestructible™ Dip Net, and density indices were calculated. Station 1, above the effluent, was a spring habitat. Fecal coliform, N, P, TSS and COD values were higher at this station, while the aquatic macroinvertebrate community was relatively simple. The …
Larval Chironomids Of The St. Francis Sunken Lands In Northeast Arkansas, Betty G. Cochran, Edmond J. Bacon Jr., George L. Harp
Larval Chironomids Of The St. Francis Sunken Lands In Northeast Arkansas, Betty G. Cochran, Edmond J. Bacon Jr., George L. Harp
Journal of the Arkansas Academy of Science
Sixty semi-annual collections (August 1987-July 1988) were made from 30 stations by sampling each station twice for 1.5 man-hours with an aquatic dipnet. Larval chironomids were mounted on slides and identified at 400-1000 magnifications using a Leitz Dialux 20 EB microscope. A survey of the aquatic macroinvertebrates of the St. Francis Sunken Lands in northeast Arkansas revealed 36 taxa of Order Diptera, Family Chironomidae. The taxa were used to evaluate the general health of the aquatic environment. Stations that were located within the least disturbed areas, which were old river channels and oxbows, contained the highest number of organisms and …
Three Year Study On A Cypress-Tupelo Swamp In Independence County, Arkansas, Veryl V. Board, Andrea Reeves, Charlotte Allen
Three Year Study On A Cypress-Tupelo Swamp In Independence County, Arkansas, Veryl V. Board, Andrea Reeves, Charlotte Allen
Journal of the Arkansas Academy of Science
No abstract provided.
Ichthyofauna Of A Cypress-Tupelo Swamp, Veryl V. Board, Charlotte Allen, Andrea Reeves
Ichthyofauna Of A Cypress-Tupelo Swamp, Veryl V. Board, Charlotte Allen, Andrea Reeves
Journal of the Arkansas Academy of Science
No abstract provided.