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Terrestrial and Aquatic Ecology Commons™
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Articles 1 - 11 of 11
Full-Text Articles in Terrestrial and Aquatic Ecology
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.
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 …
Status Of The Instream Flow Issue In Arkansas, 1987, Stephen P. Filipek, William E. Keith, John Giese
Status Of The Instream Flow Issue In Arkansas, 1987, Stephen P. Filipek, William E. Keith, John Giese
Journal of the Arkansas Academy of Science
Expansion of Arkansas' population with concurrent increases in the state's domestic, industrial, and agricultural water uses and possible out-of-state diversion are placing substantial demands on the state's water resources. In an attempt to address this growing concern, Act 1051 (1985) of the Arkansas legislature was passed requiring the determination of present and future state water needs. A specific area of this mandate was the quantification of instream flow requirements. Basic instream flow needs are maintenance of the aquatic ecosystem and dependent riparian environment. Flow reservation may compliment other instream uses such as recreation, navigation, water quality, and groundwater recharge. However, …
Rediscovery Of The Suckermouth Minnow, Phenacobius Mirabilis (Girard), In Arkansas, William E. Keith, Thomas M. Buchanan, Henry W. Robison
Rediscovery Of The Suckermouth Minnow, Phenacobius Mirabilis (Girard), In Arkansas, William E. Keith, Thomas M. Buchanan, Henry W. Robison
Journal of the Arkansas Academy of Science
No abstract provided.
Dimilin For Control Of Lernaea In Golden Shiner Ponds, Gary Burtle, John Morrison
Dimilin For Control Of Lernaea In Golden Shiner Ponds, Gary Burtle, John Morrison
Journal of the Arkansas Academy of Science
A single application of Oimilin (UNIROYAL),diflubenzuron, was tested in 9 (nine) ponds containing golden shiner minnows, Notemigonus crysoleucas, infested with the parasitic copepod Lernaea cyprinacea. The chemical was applied at a rate of1 0 or 30 pg/l and compared to untreated controls. Fish were periodically sampled to determine levels of infestation, and zooplankton numbers were monitored for chemical effect. Oimilin treatment significantly reduced (P < 0.05) parasite infestation four to eight days after treatment. No significant difference (P < 0.05) was noted between the two levels of treatment. Zooplankton populations decreased in the Dimilin treated ponds following chemical application. Rotifer populations rebounded later during the period, but copepod populations in the ponds treated with 30 ng/L remained depressed from two days after treatment for one month until the study ended. Complete parasite control was not obtained with either chemical concentration using a single application. These results suggest that a single treatment is not effective for Lernaea control. Future research will test two applications 10 days apart at the 10 and 30 /xg/L levels.
Distribution Of Fish Within Headwater Riffles Of The Illinois River System, Washington County, Arkansas, Danny J. Ebert, Arthur V. Brown, Carolyn B. Fielder
Distribution Of Fish Within Headwater Riffles Of The Illinois River System, Washington County, Arkansas, Danny J. Ebert, Arthur V. Brown, Carolyn B. Fielder
Journal of the Arkansas Academy of Science
Quantitative sampling of fish was performed in five headwater riffles of the Illinois River System, Washington County, Arkansas during low flow conditions. This study revealed differing fish species composition, biomass and feeding guild segregation between head and tail riffle reaches in 1st through 3rd order. Thirty species representing 10 families were identified. Of this number, darters (Percidae), sculpins (Cottidae), madtoms (Ictaluridae), and central stonerollers (Campostoma anomalum) (Cyprinidae) comprised 67 to 98 percent of riffle head populations. Fish biomass was greater for riffle head areas (0.58-6.6/0.28-2.0 g/m2 ) within sectivores and herbivores dominating. Total fish numbers decreased from riffleheads to tails, …
Distribution And Status Of Rare And Endangered Mussels (Mollusca: Margaritiferidae, Unionidae) In Arkansas, John L. Harris, Mark E. Gordon
Distribution And Status Of Rare And Endangered Mussels (Mollusca: Margaritiferidae, Unionidae) In Arkansas, John L. Harris, Mark E. Gordon
Journal of the Arkansas Academy of Science
Knowledge of the distribution and population status of freshwater bivalves occurring in Arkansas has increased markedly during the past decade. Sufficient data has become available to delineate species which are rare and/or endangered within the state. Historical and recent records from Arkansas exist for four mussels currently listed as federally endangered species: the fat pocketbook (Potamilus capax), the pink mucket (Lampsilis orbiculata), Curtis' pearly mussel (Epioblasma florentina curtisi), and the turgid-blossom pearly mussel (Epioblasma turgidula). Ten additional mussels which occur or were thought to occur in Arkansas are being considered for federal protection by the United States Fish and Wildlife …