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Articles 1 - 30 of 44
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71st Annual Meeting, 1987. Program, Academy Editors
71st Annual Meeting, 1987. Program, Academy Editors
Journal of the Arkansas Academy of Science
No abstract provided.
Genetic Family And Stock Type Influence Simulated Loblolly Pine Yields From Wet Sites, J. F. Dickson, Jimmie L. Yeiser, Richard A. Kleunder, J. L. Paschke
Genetic Family And Stock Type Influence Simulated Loblolly Pine Yields From Wet Sites, J. F. Dickson, Jimmie L. Yeiser, Richard A. Kleunder, J. L. Paschke
Journal of the Arkansas Academy of Science
Planting adapted families or a bulked seedlot of bare-root and container-grown-seedlings of loblolly pine (Pinus taeda L) were contrasted as cost effective alternatives for regenerating Arkansas' wet sites. Survival data from two wet sites were used to simulate 15 years of growth. Containerized seedlings provided 17% greater survival than bare-root seedlings, but yielded a lower present net worth than bare-root seedlings. Planting families adapted to excessive moisture provided 7% greater survival and yielded a greater present net worth than planting a bulked seedlot consisting of adapted and poorly adapted families.
Recent Collections Of Fishes From The Spring River Drainage In Northeast Arkansas, Steve C. Baker, Michael L. Armstrong
Recent Collections Of Fishes From The Spring River Drainage In Northeast Arkansas, Steve C. Baker, Michael L. Armstrong
Journal of the Arkansas Academy of Science
No abstract provided.
Striped Bass Scale Analysis By Scanning Electron Microscopy For Delineation Of Annuli, Barry L. Barnoski, Raj V. Kilambi
Striped Bass Scale Analysis By Scanning Electron Microscopy For Delineation Of Annuli, Barry L. Barnoski, Raj V. Kilambi
Journal of the Arkansas Academy of Science
No abstract provided.
Proceedings Of The Arkansas Academy Of Science - Volume 41 1987, Academy Editors
Proceedings Of The Arkansas Academy Of Science - Volume 41 1987, Academy Editors
Journal of the Arkansas Academy of Science
No abstract provided.
Reported Bat Rabies In Arkansas, Gary A. Heidt, David A. Saugey, Susan R. Bradford-Luck
Reported Bat Rabies In Arkansas, Gary A. Heidt, David A. Saugey, Susan R. Bradford-Luck
Journal of the Arkansas Academy of Science
No abstract provided.
Status Report Of The Fern Woodsia Scopulina In Arkansas, James H. Peck, Carol J. Peck
Status Report Of The Fern Woodsia Scopulina In Arkansas, James H. Peck, Carol J. Peck
Journal of the Arkansas Academy of Science
No abstract provided.
Discovery Of Lycopodium Communities In The Gulf Coastal Plain Region Of Arkansas, James H. Peck, Carol J. Peck, Steve L. Orzell, Edwin Bridges, Carl Amason
Discovery Of Lycopodium Communities In The Gulf Coastal Plain Region Of Arkansas, James H. Peck, Carol J. Peck, Steve L. Orzell, Edwin Bridges, Carl Amason
Journal of the Arkansas Academy of Science
No abstract provided.
Botanical Evidence For Holocene Movement Of Rock Streams In Arkansas, S. Marie Lookingbill, Malcolm K. Cleaveland, Margaret J. Guccione
Botanical Evidence For Holocene Movement Of Rock Streams In Arkansas, S. Marie Lookingbill, Malcolm K. Cleaveland, Margaret J. Guccione
Journal of the Arkansas Academy of Science
Botanical studies of rock streams on the western half of Rich Mountain and on the north slope of Mt. Magazine in Arkansas question the common presumption that such streams require periglacial conditions to form, and are now inactive relict features in this area. Trees along the margins of the streams examined show abundant evidence of trauma resulting from Late Holocene movement, in the form of bent and tilted stems. Cross sections of trees demonstrate marked eccentric growth associated with tilting and cambial trauma associated with corrasion by rocks. That this damage is not the result of excessive snow loading is …
Physiography And Hydrology Of The Upper Saline River, Saline And Garland Counties, Arkansas, John D. Rickett
Physiography And Hydrology Of The Upper Saline River, Saline And Garland Counties, Arkansas, John D. Rickett
Journal of the Arkansas Academy of Science
The Saline River is one of two significant river systems in Arkansas that does not have a major impoundment. In the interest of continuing this status, this project was conducted. Thirty-five sites on the four major and six minor tributaries of the upper saline River, Saline and Garland Counties, Arkansas, were visited a total of 58 times between 24 January 1985 and 21 November 1986. Habitat quality was assessed by measuring twelve physicochemical features and flow parameters, analyzing substrate composition and describing stream morphometry. Physicochemical measurements were within the limits of good quality habitat, and most of the readings were …
Spectrophotomatic Assay For The Enzyme Catalyzed Reaction Of 4-Nitroquinoline 1-Oxide With Glutathione, J. Steven Stanley, Ann M. Benson
Spectrophotomatic Assay For The Enzyme Catalyzed Reaction Of 4-Nitroquinoline 1-Oxide With Glutathione, J. Steven Stanley, Ann M. Benson
Journal of the Arkansas Academy of Science
4-Nitroquinoline 1-oxide (4NQO(is a toxic and carcinogenic compound that has been reported to be subject to conjugation with glutathione (GSH). This reaction may proceed non-enzymatically or be catalyzed by GSH transferases. The non-enzymatic rate for this reaction has been reported to be very high. The purposes of this investigation were to develop a spectrophotometric assay for the reaction of4NQO with GSH and to determine whether the rate for the enzyme catalyzed reaction was significant relative to the non-enzymatic reaction. The absorbance spectrum of 4NQO in phosphate buffer exhibited a maximum at 365 nm. Reaction of 4NQO with GSH was accompanied …
Effects Of Blue Tilapia/Channel Catfish Polyculture On Production, Food Conversion, Water Quality And Channel Catfish Off-Flavor, Les Torrans, Fran Lowell
Effects Of Blue Tilapia/Channel Catfish Polyculture On Production, Food Conversion, Water Quality And Channel Catfish Off-Flavor, Les Torrans, Fran Lowell
Journal of the Arkansas Academy of Science
Channel catfish (Ictalurus punctatus) monoculture ponds stocked with 10,000/ha of mixed- size catfish were compared to ponds stocked additionally with blue tilapia (Tilapia aurea). Ponds stocked with 5000/ha young-of-the-year blue tilapia produced 236 kg/ha less catfish, but tilapia biomass increased by 1020 kg/ha, averaging 233 g/fish. Ponds stocked with sexually mature tilapia in Aprilto provide forage to the catfish had increased catfish production but a poorer food conversion radio. Ponds stocked with sexually mature tilapia in June or July had catfish production and FCR's similar to the controls. Dissolved oxygen was significantly lower than the controls in all polyculture treatments. …
Cartographic Trend Analysis Of Furbearer Harvest Distributions In Arkansas, C. Renn Tumlison, Mark Trail, V. Rick Mcdaniel
Cartographic Trend Analysis Of Furbearer Harvest Distributions In Arkansas, C. Renn Tumlison, Mark Trail, V. Rick Mcdaniel
Journal of the Arkansas Academy of Science
Average by-county fur harvest for the last nine harvest seasons (1977-1985) was used as data points to be interpolated using nearest neighbor algorithms in computer-assisted trend analyses. COMPLOT maps were produced which represented a surface of harvest densities drawn over a map of Arkansas. Twelve furbearer species are examined, and "topographic" features of harvest density for each are interpreted in terms of ecology and/or buyer distribution. The trend surface technique removed some of the error inherent to harvest records, and produced an aesthetic graphical display of the information that was more easily interpreted and explained than other methods of analysis …
Textural And Lithologic Differences Of Cretaceous, Tertiary, And Quaternary Gravels Of South Arkansas, Lesli Wood
Textural And Lithologic Differences Of Cretaceous, Tertiary, And Quaternary Gravels Of South Arkansas, Lesli Wood
Journal of the Arkansas Academy of Science
Stream gravels have been derived from the Ouachita Mountains since at least Cretaceous times. Past studies have assigned ages to gravel deposits in the basins of the Saline and Little Missouri Rivers on the basis of altitude above local floodplains. This study examines the lithologies and textures of seven gravel outcrops ranging in age from Cretaceous to Quaternary to determine whether any patterns of variation based on assigned ages, variable sources, or precise depositional setting can be discerned. No variation patterns could be found for size distributions of sand-sized and larger fractions. However, the amount of silt-clay matrix decreases through …
Selected Families Of Trichoptera In Arkansas, Veryl V. Board
Selected Families Of Trichoptera In Arkansas, Veryl V. Board
Journal of the Arkansas Academy of Science
No abstract provided.
Status Review Of The Threatened Ozark Cavefish (Amblyopsis Rosae), Arthur V. Brown, C. Stan Todd
Status Review Of The Threatened Ozark Cavefish (Amblyopsis Rosae), Arthur V. Brown, C. Stan Todd
Journal of the Arkansas Academy of Science
No abstract provided.
Effect Of City Effluent On The Diversity Of Aquatic Macroinvertabrates Of Sugar Creek, Clay County, Arkansas, Kay Cargill, George L. Harp
Effect Of City Effluent On The Diversity Of Aquatic Macroinvertabrates Of Sugar Creek, Clay County, Arkansas, Kay Cargill, George L. Harp
Journal of the Arkansas Academy of Science
No abstract provided.
New County Records Of Arkansas Vascular Flora From The University Of Central Arkansas Herbarium, Donald E. Culwell
New County Records Of Arkansas Vascular Flora From The University Of Central Arkansas Herbarium, Donald E. Culwell
Journal of the Arkansas Academy of Science
No abstract provided.
Yellow Rail (Coturnicops Novaborancensis) With Dark Plumage From Arkansas, Douglas A. James
Yellow Rail (Coturnicops Novaborancensis) With Dark Plumage From Arkansas, Douglas A. James
Journal of the Arkansas Academy of Science
No abstract provided.
Efficiency Of Different Storage Methods For Preserving Lake Trout (Salvelinus Namacush) Eye Tissue, Basil L. Joiner, Joseph R. Sylvester, Harold L. Kincard
Efficiency Of Different Storage Methods For Preserving Lake Trout (Salvelinus Namacush) Eye Tissue, Basil L. Joiner, Joseph R. Sylvester, Harold L. Kincard
Journal of the Arkansas Academy of Science
No abstract provided.
Arkansas Pteridophyte Flora Update: A New Checklist And Additional County-Level Occurrence Records, James H. Peck, Carol J. Peck, W. Carl Taylor
Arkansas Pteridophyte Flora Update: A New Checklist And Additional County-Level Occurrence Records, James H. Peck, Carol J. Peck, W. Carl Taylor
Journal of the Arkansas Academy of Science
No abstract provided.
Application Of Geligam Software To The Analysis Of X-Ray Spectra, R. S. Saunders, Harold L. Pray, H. B. Eldridge
Application Of Geligam Software To The Analysis Of X-Ray Spectra, R. S. Saunders, Harold L. Pray, H. B. Eldridge
Journal of the Arkansas Academy of Science
No abstract provided.
71st Annual Meeting, 1987. Secretary's Report And Financial Statement, Academy Editors
71st Annual Meeting, 1987. Secretary's Report And Financial Statement, Academy Editors
Journal of the Arkansas Academy of Science
No abstract provided.
Improved Synthesis Of 5-Methylbenz(A)Anthracene, Jia Che, Dominic T.C. Yang
Improved Synthesis Of 5-Methylbenz(A)Anthracene, Jia Che, Dominic T.C. Yang
Journal of the Arkansas Academy of Science
A revised synthesis of 5-methylbenz(a)anthracene is reported. It involves only three simple and convenient steps starting from a commercially available compound, and gives a 82% overall yield. Bromination of 5-methylbenz(a)anthracene with N-bromosuccinimide (NBS) in carbon tetrachloride furnishes 5-bromomethylbenz(a)anthracene in a 92% yield. When bromination is carried out using dimethylformamide as the solvent, 7-bromo-5-methylbenz(a)anthracene is formed as the exclusive product.
Clinostomum Marginatum Metacercaria: Incidence In Smallmouth Bass From A North Arkansas Stream And In Vitro Oxygen Consumption Studies, James J. Daly, Howard H. Conaway, Terryl L. Hostetler, H. Michael Matthews
Clinostomum Marginatum Metacercaria: Incidence In Smallmouth Bass From A North Arkansas Stream And In Vitro Oxygen Consumption Studies, James J. Daly, Howard H. Conaway, Terryl L. Hostetler, H. Michael Matthews
Journal of the Arkansas Academy of Science
Small mouth bass (Micropterus dolomieui) captured from Crooked Creek (Marion Co., Arkansas) in the summers of 1977 and 1987 were found to have a high incidence of infection with the metacercaria of Clinostomum marginatum (yellow grub). Of 41 fish collected in 1977, 32 (78%) were found infected with metacercariae with some fish containing large numbers of parasites. The number of larvae per fish ranged from 1 to 184, with an average of 23.2 ± 38 per smallmouth. Eighty-six percent of the bass collected in 1987 were found positive for C. marginatum. The number of metacercariae per fish ranged from 1 …
Residual Pesticides In Fishes From Lake Chicot, Arkansas, C. M. Cooper, S. S. Knight
Residual Pesticides In Fishes From Lake Chicot, Arkansas, C. M. Cooper, S. S. Knight
Journal of the Arkansas Academy of Science
Samples of fish from isolated and flow-through portions of Lake Chicot, Arkansas, were analyzed for residual pesticide concentrations from 1978 and 1981. Where appropriate ecologically, fish flesh, viscera and whole fish, were analyzed for the common organochlorine insecticides DDT [1,1 ,1-trichloro -2,2bis(p-chlorophenyl)-ethane], DDE [1,1-dichloro-2,2-bis(p-chlorophenyl)-ethyene], DDD [1,1-dichloro -2,2-bis(p-chlorophenyl)-ethane], toxaphene (chlorinated camphene), chlordane, heptachlor, heptachlor epoxide, dieldrin, and endrin. DDT, DDT metabolites, and heptachlor were significantly (a = 0.05) higher in spotted gar (Lepisosteus oculatus) and yellow bullhead catfish (Ictalurus natalis) than in other species examined. Pesticide concentrations did not exceed the acceptable levels established by the U.S. Environmental Protection Agency although …
Distribution Of Fishes In Reference Streams Within Arkansas' Ecoregions, William E. Keith
Distribution Of Fishes In Reference Streams Within Arkansas' Ecoregions, William E. Keith
Journal of the Arkansas Academy of Science
The State of Arkansas has been subdivided into six ecoregions based on the homogeneity of land surface forms, potential natural vegetation, soil types and land uses. Reference streams of various sizes, excluding the large rivers, and with the least amount of point source and non-point source disturbances were selected for intensive physical, chemical and biological sampling. These data are to be used to characterize the streams and establish water quality criteria which will protect all stream uses. Fish communities of the reference streams were distinctively different among the ecoregions and can easily be used to characterize the waters of different …
Fur Trade Records From Arkansas Factory, Arkansas Post, Louisiana Territory, 1805-1810, Paul J. Polechla Jr.
Fur Trade Records From Arkansas Factory, Arkansas Post, Louisiana Territory, 1805-1810, Paul J. Polechla Jr.
Journal of the Arkansas Academy of Science
The United States government established a trading house at Arkansas Post in 1805 on the north bank of the Arkansas River in the newly purchased Louisiana Territory. The goal of this trading house was to foster good relations with the Quapaw tribe and other indigenous peoples. John B. Treat and his successors operated the post and meticulously recorded the number, value, and species of pelts traded. Tabulation of these records, which have been preserved in the National Archives, revealed that 9 or 10 species contributed a total of about 44,000 hides, worth approximately $18,000. White-tailed deer (Odocoileus virginianus) pelts comprised …
Influence Of Thresher Cylinder Speed And Grain Moisture At Harvest On Milling Yield Of Rice, R. H. Dilday
Influence Of Thresher Cylinder Speed And Grain Moisture At Harvest On Milling Yield Of Rice, R. H. Dilday
Journal of the Arkansas Academy of Science
The percentage of broken rice (Oryza sativa) kernels was determined after threshing the grain at varying cylinder speeds of the thresher and moisture contents of the grain at harvest. Moisture contents of the individual grain samples ranged from 12 to 26% and the two cylinder speeds were 600 and 1000 RPM. Significant differences between germplasm, cylinder speed and moisture content of the grain at harvest on milling yield was observed. For example, Newbonnet had the fewest broken kernels while Leah had the greatest amount of broken kernels. Lemont produced the highest total milling yield; whereas, L202 produced the lowest total …
Effects Of Stock Type And Planter Experience On The Time Required To Plant Loblolly Pine Seddlings, Richard A. Kluender, Jimmie L. Yeiser
Effects Of Stock Type And Planter Experience On The Time Required To Plant Loblolly Pine Seddlings, Richard A. Kluender, Jimmie L. Yeiser
Journal of the Arkansas Academy of Science
Inexperienced workers planted container-grown and bare-root seedlings of loblolly (Pinus taeda L.) on a rocky, upland site near Batesville, AR in a comparison of planting speed and survivability. Planting speed depended on the type of seedling planted and the amount of planting experience. Significantly less time was required to plant an acre with container-grown than bare-root seedlings. Experience increased the consistency and speed of planting for both seedling types.