Proceedings of Southeastern Fish and Wildlife Conference
Prior to 2013, SEAFWA published the Proceedings of annual conferences. In 2014, SEAFWA began publishing the peer-reviewed Journal of the Southeastern Association of Fish and Wildlife Agencies.
2251 - 2300 of 4522 articles | 50 per page | page 46
| Article | Year |
|---|---|
Denning Behavior Of Black Bears In The Great Smoky Mountains National Park Denning behavior of black bears (Ursus americanus) in the Great Smoky Mountains National Park was studied using motion sensitive radio-collars. All radioinstrumented bears (n = 29) entered dens and exhibited periods of decreased activity in the predenning and postdenning periods (n = 20). Denning behavior was characterized by a reduction in sensitivity, with females being more lethargic than males. Female bears departed fall ranges earlier (P Kenneth G. Johnson, Michael R. Pelton
Pages 239-249 |
1979 |
Physical Characteristics Of White-Tailed Deer Fawns In Southwestern Oklahoma Eighty-three white-tailed deer fawns (Odocoileus virginianus texanus) were captured in the Wichita Mountains of southwestern Oklahoma between 1974 and 1977. General physical appearance was documented and 10 body measurements were taken from each fawn. The calculated age of captured fawns ranged from I to 21 days. Three measurements (total weight, total body length, and hind foot length) appeared to be those most descriptive of skeletal and body mass changes with increasing age. Regression models indicated that males were larger and grew faster than females. William S. Bartush, Gerald W. Garner
Pages 250-258 |
1979 |
Midsummer daytime bedsites of white-tailed deer (Odocileus virginianus texanus) fawns in southwestern Oklahoma were analyzed to determine the species composition of the surrounding vegetation. Vegetative composition varied between bedsites and range sites, but fawns did not bed in areas dominated by short vegetation. Fawns used 5 different range sites for daytime bedsites. Bedsites located on the 2 savannah range sites had higher percentages of woody vegetation than did bedsites located in the 3 open range sites. Gerald W. Garner, Jeff Powell, John A. Morrison
Pages 259-266 |
1979 |
Home Range Use And Movements Of Desert Mule Deer In Southwestern Texas Average home range size for 10 desert mule deer (Odocoileus hemionus crookii) was 384.1 ha. The average home range size for 5 bucks (493.4 ha) was I.7 times larger than that of 5 does (283.7 ha). Home range sizes increased with age and were largest among deer 5 to 7 years old. Deer 7.5 to 8+ years old had somewhat smaller home ranges than animals 5.5 years old. Seasonal migration or seasonal shifts in home ranges were not apparent; however, vegetative type preferences within home ranges did vary according to season. Tony G. Dickinson, Gerald W. Garner
Pages 267-278 |
1979 |
Short-Duration Grazing May Improve Wildlife Habitat In Southeastern Pinelands In southeastern pinelands, continuous year-long cattle grazing often degrades wildlife habitat and range condition. Short periods of intensive grazing followed by long rest periods show potential for improving wildlife habitat. In 1976 we began a study in which small pastures on a mature longleaf pine (Pinus palustris) flatwoods site in northern Florida were grazed for I to 2 weeksXuntil 50 percent of the grazeable forage was removed. Pastures were then rested for 2, 4, or 6 months before grazing was repeated. William H. Moore, W. Stephen Terry
Pages 279-287 |
1979 |
Population Dynamics Of Breeding Woodcock In The Canaan Valley, West Virginia Data collected from woodcock banded in Canaan Valley, West Virginia from 1964 to 1970 were analyzed to determine population dynamics of resident (breeding) woodcock. lmmatures comprised over 60% ofthe banded sample, with immature males comprising 42% (P<0.05). Immatures appeared more susceptible to capture. Overall sex ratio for the banded sample revealed more males than females, but more females were found in the adult class. Greater survival of immature females causes ratios favoring females in the adult class. Additionally, adult females have a higher survival rate than adult males.
Pages 288-295 |
1979 |
Nutrient Analysis Of Selected Forbs On Clearcut Areas In Southeastern Oklahoma Select forbs, chosen on the basis of their suspected importance in white-tailed deer (Odocoileus virginianus) diets, were collected in the geologic Ouachita Highlands and Coastal Plain provinces in southeastern Oklahoma to determine nutrient content and dry matter digestibility. Sampling was conducted from May to September, 1977, on 5year- old clearcuts. Field dry matter, crude protein, calcium, phosphorus, ash, and in vitro dry matter digestibility were determined. Crude protein content (9.2 to 16.8%) was generally low for all species. James E. Reeb, Theodore H. Silker
Pages 296-304 |
1979 |
Impacts Of White-Tailed Deer On The Vegetation Of Cades Cove. Great Smoky Mountains National Park The impact of a concentrated (.52 deer / hal herd of white-tailed deer (Odocoileus virginianus) on the vegetation in Cades Cove is discussed. Utilization by cattle and horses had a greater impact on the woodlots in the cove than utilization by deer. Livestock reduced the number of vascular plant species and woody stem counts in all strata sampled. Deer utilization reduced the total plant species number and favored conifers in the 3 cm dbh and smaller stem size classes.
Pages 305-312 |
1979 |
Observations On European Wild Boars Released in Southern West Virginia Thirty pen-reared European wild hogs (Sus scrofa) were released in 1971 in southwestern West Virginia with the purpose of establishing a huntable population. The stocking involved construction of pens in a remote area followed by artificial feeding and gradual release of sows that had recently farrowed. Size of release area and sow-piglet introductions are considered major factors resulting in establishment of a wild population. Wild boars have produced litters annually and are presently occupying 130 sq km. William K. Igo, Thomas J. Allen, Edwin D. Michael
Pages 313-317 |
1979 |
Commercial Aquaculture In Virginia In 1978 In 1978, all commercial aquaculture enterprises operating in the state were surveyed by telephone and in person to determine the status of the industry and to assess the biological and economic feasibility of rearing aquatic organisms for profit in Virginia. A total of II commercial aquaculture firms were in business during 1978. Six establishments were producing rainbow trout (Salmo gairdneri) for food and stocking recreational waters, 2 were rearing warmwater sport fish fingerlings and bait fish, and 3 were culturing clams. Louis A. Helfrich, Diana L. Weigmann, Donald L. Garling, Jr.
Pages 318-323 |
1979 |
Feeding Interactions Of Three Planktivorous Fishes In Trinidad Lake. Texas Food habits of gizzard shad (Dorosoma cepedianum), threadfin shad (D. petenense), and blue tilapia (Tilapia aurea) were studied in summer and winter, 1975. Stomach contents of all 3 species consisted predominantly of organic detritus, followed by green algae, blue-green algae and diatoms. Occurrence of planktonic foods corresponded closely with the composition of the plankton. Although food habits differed between season, they were closely correlated among species within season. Similarities in food habits of the 3 planktivorous species suggest potential food competition. Marla K. Hendricks, Richard L. Noble
Pages 324-330 |
1979 |
Effects Of A High Rainfall Year On Trout Habitat In Bull Shoals Reservior Main channel measurements of temperature and dissolved oxygen concentration are used to describe trout habitat in Bull Shoals Reservoir during August, September and October for 1963-1965 and 1969-1973. These months were chosen to show selected events preceding the October minimum of potential trout habitat. Watershed inflow to the reservoir, generation releases, and inflow from upstream Table Rock Dam were analyzed to determine correlations among these factors and minimum volume of potential trout habitat remaining in Bull Shoals Reservoir each year prior to recirculation.
Pages 331-343 |
1979 |
Morphometric Characters Of Two Morone Hybrids Morphometric ratios of female striped bass (Marone saxatilis) X male white bass (M. chrysops) and female striped bass X male white perch (M. americana) that were best for distinguishing them from the parental species were: standard length/ body depth, head length/second anal spine length, head length/fourth dorsal spine length, standard length/fork length, fork length/total length, second anal spine length/third anal spine length and head length/upper jaw length. Ratios were generally intermediate between those of the parental species, but sometimes differed from those of either parent.
Pages 344-352 |
1979 |
Striped Bass Culture In Continuously Aerated Ponds Production of striped bass (Morone saxatilis) fingerlings in eight 0.02-ha ponds aerated with continuously operated airlift pumps averaged 181,000 fish! ha. Ponds were initially fertilized with hay at either 560, 1120, or 2240 kg! ha and zooplankton blooms were maintained with hay and meat scrap fertilizers. The average daily application of organic fertilizers ranged from 32 to 82 kg! ha. Five-day-old fry were stocked at the rate of 250,000, 500,000, or I million! ha. Fry were supplementally fed a 45% protein diet 3 times per day after they were 22 days old.
Pages 353-360 |
1979 |
Growth, Survival And Distribution Of Striped Bass Stocked Into Watts Bar Reservoir, Tennessee Striped bass (Morone saxatilis) were collected from Watts Bar Reservoir, Tennessee, in 1977 and 1978 to assess relationships between growth rates, survival, stocking density, and distribution patterns of stocked fingerlings. Survival and average sizes attained at ages I and 2 were inversely related to stocking density and directly related to size at stocking. Average lengths of age 3. and older fish were not related to stocking size, and the principal advantage of stocking large fingerlings was improved survival. M. J. Van Den Avyle, B. J.Higginbotham
Pages 361-370 |
1979 |
Striped Bass Spawning In The Arkansas River Tributary Of Keystone Reservoir, Oklahoma Spawning locations of striped bass (Morone saxatilis) were identified over a 118 km reach of the Arkansas River from the collection of 8,828 striped bass eggs during 1976-78. Although certain spawning locations remain constant from year to year others vary significantly within the 118 km stretch of river. Spawning began between 7 and 14 April when water temperature reached 15.5 to 18.5C and had a duration of 27 to 51 days. Spawning peaks occurred annually, generally within a few days from one year to the next.
Pages 371-383 |
1979 |
Effect Of Striped Bass Predation On An Oklahoma Trout Fishery A creel survey was conducted on the lower Illinois River, Oklahoma, during 1977. Striped bass (Marone saxatilis) were also collected for food habit information and their relative abundance was noted. Striped bass predation on rainbow trout (Sa/rna gairdnen) occurred only at the downstream sampling site and only for the I-week period following trout stocking. Trout made up 40% of the food items of these striped bass within I week after trout stocking. The trout fishery of the lower Illinois River has declined in overall intensity since J965, particularly in the downstream reaches. Darrell L. Deppert, James B. Moose
Pages 384-392 |
1979 |
Fish Population Estimate Methods Evaluated By A Total Drawdown The fish population of Lake Columbia, a 36.42 ha Mississippi impoundment, was estimated by shoreline seining, mark and recapture, rotenone sampling and gill netting. The impoundment was then drained to evaluate results. Shoreline seining provided an excellent estimate of population balance. Mark and recapture oflargemouth bass (Micropterus salmoides) gave a statistically valid estimate and was the only method to which statistics could be applied. Length-frequency data of bass from rotenone samples were stable and appear useful, although large bass were underestimated.
Pages 393-401 |
1979 |
Factors Affecting Estimates Of Fishing Mortality Of Largemouth Bass In A Southeastern Reservoir Largemouth bass (Micropterus salmoides) were tagged on West Point Reservoir, Alabama-Georgia in 1976-1978 to estimate rates offishing. During the 3 years, several factors affecting these estimates were evaluated. Non-response by anglers who recovered non-reward tags was calculated to be 0.66; tag loss was estimated to occur at an average rate of 4% per week; tagging mortality and displacement offish while tagging did not appear to affect estimates of fishing mortality. Henry G. Folmar, William D. Davies, William L. Shelton
Pages 402-407 |
1979 |
A SAS Program Summarizing Data Collected By Rotenone Sampling A SAS program was designed to compile and summarize data collected by rotenone sampling. The program is designed to accept data in a variety of forms, providing a statistical summary of number, weight and percentage composition for all species and also a separate summary for harvestable gamefish and! or forage fish. Options are available to calculate weights for fish collected on second and third day pickups with weight-length relationships established from first day fish for either individual fish or by size groups. Douglas F. Durant, Douglas E. Colle, Jerome V. Shireman
Pages 408-414 |
1979 |
Assessment Of Structure Of Largemouth Bass Stocks By Sequential Sampling We examined the accuracy and application of sequential sampling to determine structure of fish stocks, using electrofishing data for largemouth bass (Micropterus salmoides) as an example. Structure of the stock was categorized with the index of Proportional Stock Density (PSD), which is the percentage of quality-size fish in the stock. Minimum stock and quality sizes for largemouth bass were defined as 20 and 30 cm, respectively. Sequential sampling is based on data evaluation during collection. A. Stephen Weithman, James B. Reynolds, Donald E. Simpson
Pages 415-424 |
1979 |
Laboratory Rearing Of The Common Snook Culturability of snook (Centropomus undecimalis) was evaluated in laboratory studies during the summers of 1975-1977. This is the first report of snook being reared from artificially fertilized eggs. No snook survived longer than II days in the 1975 experiments, although about 50 and 250 were reared through metamorphosis and beyond in the experiments of 1976 and 1977, respectively. These snook were reared in closed saltwater rearing systems for 14-16 days, after which they were converted to fresh water and stocked in 0.01 ha ponds. Paul L. Shafland, Duane H. Koehl
Pages 425-431 |
1979 |
Yield Trials For Red Drum In Brackish·Water Ponds, 1976-1979 In 2 trials during 1976-1979, juvenile red drum (Sciaenops ocellata) were reared to marketable size (454 g) in 0.08-ha, brackish-water ponds at the Claude Peteet MaricuIture Center. In Trial I, survivors from a nursery pond were stocked in 2 production ponds, fed a commercial feed, and harvested when 394 or 532 days old. Less than I% of drum from the first harvest were marketable, and yield was 787 kgl ha with 21O-g mean weight, 89% survival, and 2.8 feed conversion.
Pages 432-441 |
1979 |
Management Of Red Drum In A Texas Estuary - A Case Study In September 1974 the Texas Parks and Wildlife Commission banned the use of plastic baits on trotlines because these baits were thought to be selective for small «500 mm) red drum (Sciaenops ocellata). The size of red drum landed by commercial fishermen before (1972-1974) and after (1974-1978) the ban was compared with the size of fish collected during Texas Parks and Wildlife Department trammel net surveys in order to determine whether the ban had any effect on either the commercial catch or fish availability. Gary C. Matlock, Patricia L. Johansen, Joseph P. Breuer
Pages 442-450 |
1979 |
Spawning Of Spotted Sea Trout In A Louisiana Estuarine Ecosystem Biomodal spawning peaks, as determined by the gonadosomatic index, were noted for the spotted seatrout (Cynoscion nebulosus) in the Barataria Bay, Louisiana, system for 1976 and 1978. Males matured earlier in the season and at a smaller size than females. Males were found to have sound producing capabilities. Fish spawned throughout the bay regardless of water depth or substrate. Spawning seemed to occur in the northern portion of the bay later than in the southern portion. Photoperiod and temperature were the only exogenous factors found to have a direct relationship with spawning.
Pages 451-465 |
1979 |
Vertical Distribution Of Caged Estuarine Fish In Thermal Effluent Subject To Gas Supersaturation Depth distributi.on of tarpon (Megalops atlantica), pinfish (Lagodon rhomboides), Atlantic Croaker (Micropogon undulatus), black drum (Pogonias cromis), and striped mullet (Mugil cephalus) placed in cylindrical cages extending from the surface to the bottom of the thermal effluent of a steam-electric power plant was monitored daily using a depth locator. Temperature,conductivity, pH, dissolved oxygen, turbidity, and gas saturation levels were recorded immediately after recording the depth distribution data.
Pages 466-483 |
1979 |
Aquatic Ecological Parameters Associated With Salt Marsh Mosquito Ditch Systems Water quality and aquatic fauna associated with ditching systems dug in 1968 and in 1972 in an irregularly flooded marsh were studied. Salinity, pH, temperature, dissolved oxygen, were determined monthly. Dissolved oxygen was lowest at the upper ends of the ditches. Organic matter seemed to have been built up at the upper ends ofthe ditches due to inadequate tidal flushing. Mats of submersed vegetation hindered tidal flow which reduced the flushing effectiveness of the tides. Wendell J. Lorio, Mary R. Capezza, Opal H. Dakin
Pages 484-494 |
1979 |
Floating Tire Breakwaters And Ecology Of Coves In An Oklahoma Reservoir The influence of floating tire breakwaters on the ecology of coves was studied in Lake Carl Blackwell, a 1400-ha reservoir in north-central Oklahoma. Breakwaters, consisting of a single row of 18-tire modules, were installed across the mouths of 2 coves (8.5 and 9.8 ha). Wind, wave height, water temperature, transparency, suspended solids, turbidity, and sedimentation rate were measured during one 7-month period at windward and leeward sites in 2 experimental and 2 control coves. Michael D. Clady, Robert C. Sumerfelt, Robert Tafanelli
Pages 495-506 |
1979 |
Analysis Of Prey Selection In Chain Pickerel Chain pickerel (Esox niger) in Lake Conway consumed progressively more fish with increase in size. A shift also occurred in size, species composition, and relative abundance of fish prey with chain pickerel size. An index of selection was applied to food habit data. There was an increase in number of species and an increase in size of species that were positively selected as chain pickerel size increased. Size, rather than abundance of forage fish was the dominant influence on prey selection.
Pages 507-517 |
1979 |
Evaluation Of The Removal Of A Minimum Size Limit On Walleye In Glenville Reservoir, North Carolina The removal of a 381 mm minimum size limit on walleye in Glenville Reservoir, North Carolina did not significantly affect the mean calculated total length ofthose fishes at the first 3 annuli. However, a significant increase in calculated total length was determined at the fourth annulus. There were no significant changes in the mean calculated growth increments. Comparisons of net survey data collected before and after removal of the minimum size limit showed no change in the average catch of walleye per net-day. Jay H. Davies, Paul J. Wingate, William R. Bonner
Pages 518-522 |
1979 |
Fish Populations Of The Neuse River In The Area Of A Low Dam In The Upper Coastal Plain Fish populations in the Neuse River, North Carolina, were studied near a steam electric plant which included a low-head dam as part of the installation. The purpose of the study was to describe the fish population of a moderate-sized upper coastal plain river, and to provide insight in to the distribution of fishes relative to the dam. Fish were collected by gill netting, fyke netting, electrofishing, seining, and trawling to examine the various species and sizes of fishes present. Sampling was conducted over a I-year period to include seasonal changes in the fish population. William H. Tarplee, Willard E. Partin
Pages 523-534 |
1979 |
Fish Health In The Tailwaters Of Buford Dam, Georgia Eight species of bacteria, 8 genera of parasites, and I species of virus were found infecting rainbow trout (Salrno gairdnen), brown trout (S. trutta), brook trout (Salvelinus jontinalis) and yellow perch (Perca jlavescens) from 2 locations in the Chattahoochee River below Buford Dam. There were no clinical signs ofdiseases caused by these potentially pathogenic organisms. Microscopic lesions were present in some of the fish, and the gill was the organ most often affected.
Pages 535-548 |
1979 |
Benthic Macroinvertebrate Response To Grass Carp Introduction In Three Florida Lakes Three natural lakes were studies to determine effects of grass carp (Ctenopharyngodon idella Val.) introduction on invertebrates. Benthic macroinvertebrate populations were changed after the introduction of grass carp changed the existing habitat in the 3 natural lakes. Species diversity (d), number of taxa and pollution-intolerant organisms decreased in all lakes after grass carp introduction. Macrophytes were also reduced in all study areas and several native species were eliminated. Changes in benthos corresponded to changes in water quality and aquatic vegetation.
Pages 549-562 |
1979 |
Factors Affecting Voluntary Food Consumption By Channel Catfish Nutritional and physical properties of the diet, management, and environment affect voluntary food consumption by channel catfish (lctalurus punctatus). Laboratory studies in which channel catfish were fed twice daily to satiation with semipurified diets containing various ratios of protein and digestihle. energy indicated that food intake was directly proportional to calorie density in the diet but independent of protein density until the protein percentage exceeded 45. Protein levels above 45% caused reduced food intake.
Pages 563-571 |
1979 |
Effects Of Cropping On Growth Of Channel Catfish From 20 May to 28 October 1978, 5 experimental fish ponds at Arkansas State University Fish Farm, Walcott, Arkansas, were utilized in determining the effects of cropping on channel catfish growth. Three ponds were used as experimental ponds and 2 as controls. Selected physiocochemical properties of the water were measured. With the exception of air and water temperatures, properties of the experimental ponds fluctuated more than the controls due to indirect effects of cropping. However, all values fell within acceptable ranges for channel catfish (Ictalurus punctatus Rafinesque) culture. William W. Stephens, John K. Beadles
Pages 572-583 |
1979 |
Production Potential Of Catfish Grow-Out Ponds Supplementally Stocked With Silver And Bighead Carp Three experimental ponds were stocked with a polyculture of channel catfish (Ictalurus punctatus). silver carp (Hypopthalmichthyes molit rix) , and bighead carp (Aristichthes nobilis). Three control ponds were stocked with catfish alone. In 2 of the 3 sets of ponds, there was little difference in catfish production (less than I and 10% by weight) while total production in the polyculture ponds far exceeded the controls with catfish alone. In the remaining set.
Pages 584-590 |
1979 |
Frequency Of Low Dissolved Oxygen Concentrations In Ponds For Commercial Culture Of Channel Catfish Data were obtained on dissolved oxygen (DO) problems in 36 ponds used for the commercial production of channel catfish (lctalurus punctatus) in Tallahatchie County, Mississippi. The frequency of DO concentrations below 2 mg/Iiter at dawn was greatest during summer when water temperatures were above 26C. On summer days, 20% or more of the ponds often had DO concentrations below 2 mgjliter at dawn. During the I54-day period, I May through I October, emergency aeration was employed a total of 410 times in the 36 ponds. Claude E. Boyd, James A. Sweeney, E. W. McCoy
Pages 591-599 |
1979 |
Inhibition Of Ammonia And Nitrite Toxicity To Channel Catfish Ammonia is the primary nitrogen-containing waste product of fish. Under natural conditions, ammonia is converted first to nitrite and then to nitrate. Ammonia and nitrite are toxic to fish at low levels, but nitrate is relatively non-toxic. Ammonia has a variety of toxic effects, including reduced growth rates, whereas nitrite primarily interfers with oxygen transport. The literature pertaining to toxic levels and effects of environmental ammonia and nitrite as well as experimental methods of inhibiting these toxicities are reviewed. J.R. Tomasso, Bill A. Simco, Kenneth R. Stickney
Pages 600-605 |
1979 |
Culture Of Chinese Waterchestnuts In The Southeastern United States Two .05 ha ponds were planted with water chestnut (Eleocharis dulcis) corms in March 1978. After the waterchestnuts had sprouted the ponds were flooded in late March to an average depth of 15 em, and remained flooded until mid-October 1978. The ponds were drained and left dry until February 1979 when they were harvested. One pond had excellent production throughout, leading to an extrapolated level of 13,600 kg! ha. The other pond had good production only along the sides and in the shallow end due to high turbidity and unfavorably low soil pH. Robert B. McGeachin, Robert R. Stickney
Pages 606-610 |
1979 |
Ultrasonic transmitters were surgically implanted into 50 sexually mature walleye Stizostedion vitreum vitreum (mean weight 1.9 kg) in Canton Reservoir during March 1977. The locations of these fish were determined bimontly from March through November 1977, as an indication of walleye concentration areas in the reservoir. Temperature, dissolved oxygen and pH profiles were also obtained bimonthly at 2 stations during this time. During the March spawning season walleye were all located near the riprap of the dam.
Pages 611-619 |
1979 |
Effects Of Temperature On Survival Of Peacock Bass Fingerlings Effects of temperature on survival of peacock bass ( Cichla ocellaris) fingerlings were examined in the laboratory. Fish were acclimated to 25, 30 or 35 C prior to testing. The ultimate lower and upper lethal temperatures in freshwater were 15.6 and 37.9 C when the temperature change from acclimation was I C/ day. Salinity (10% 0) significantly reduced (P<0.05) the ultimate lower lethal temperature to 14.4 C. Acclimation temperature significantly affected the temperature at which peacock bass began losing equilibrium (LEso) and dying (CTMin) when fish were exposed to a I Cf h decrease. W. C. Guest, B. W. Lyons, G. Garza
Pages 620-627 |
1979 |
Community Structure And Differential Impingement Of Savannah River Fishes the fish communities of the middle Savannah River and 2 cooling water intake canals connected to the river had equal species richness and were equally diverse. However, the relative abundance of functionally similar species groups differed between the localities. Sunfishes were more dominant in the canal communities. Suckers contribued 55% of the biomass in all 3 communities. Impingement was very low and spread over 32 species. Three species of c1upeids comprized 32% of the total number of fish impinged. R. W. McFarlane, R. A. Frietsche, R. D. Miracle
Pages 628-638 |
1979 |
Relationship Of Threadfin Shad Density And Size Structure To Impingement At A Steam-Electric Plant Threadfin shad (Dorosoma petenense) impingement at the Tennessee Valley Authority's Cumberland Steam-Electric Plant followed a seasonal pattern related to the abundance and length distribution of young-of-year fish. Electrofishing samples taken near the plant showed a similar pattern. The number ofimpinged fish (larger than 50 mm) decreased rapidly with increasing length due to reduction in abundance by natural mortality. Impingement mortality was found to be length dependent. Most individuals. Thomas A. McDonough, Peter A. Hackney
Pages 639-647 |
1979 |
Larval Fish Populations During The First Three Years Of Impoundment In Normandy Reservoir, Tennessee Seasonal abundance of larval fishes in Normandy Reservoir, Tennessee, was determined during the first 3 years (1976-1978) following impoundment. Relative abundance of major taxa collected with a 0.5 m frame net was compared with results of cove rotenone samples to measure year-class strength. Centrarchids dominated both larval and cove rotenone populations throughout the investigation. The strongest year class of crappie (Pomoxis spp.) was observed in 1976, even though greater larval abundance (5 times) was recorded in 1978. Johnny P. Buchanan, Edwin M. Scott, Jr.
Pages 648-659 |
1979 |
Larval Fish Populations In Little Bear Creek Reservoir During The First Three Years Of Impoundment The data from 3 years of ichthyoplankton sampling during the initial impoundment of Little Bear Creek Reservoir are presented. Trends of percentage composition and abundance are discussed by family and taxon. The Centrarchidae greatly outnumbered other families of fishes throughout the study, while c1upeids failed to become established. Strong year classes of Lepomis and Pomoxis were produced during the first year of impoundment. Relative failures of the second and third years are attributed to lack of spawning success in the case of Lepomis and predation in the case of Pomoxis. Edwin M. Scott, Jr., Johnny P. Buchanan
Pages 660-672 |
1979 |
History And Organization Of The Barkely Lake Rotenone Study A cooperative study was conceived, organized and implemented by the Reservoir Committee and its member agencies, Southern Division, AFS. The Crooked Creek Bay (85 ha) of Barkley Reservoir was divided into various cove and open-water areas and treated with rotenone. Overall. 990 kg/ ha of fish were recovered. Greg L. Summers, James R. Axon
Pages 673-679 |
1979 |
Recovery Of Tagged Fish During The Crooked Creek Bay Rotenone Study At Barkely Lake. Kentucky Recovery rates were determined for marked fish released into 10 of 15 cove areas and 2 of 6 open water areas during the cove rotenone study at Crooked Creek Bay, an 85 ha arm of Barkley Lake, Kentucky. Fish were tagged with a F10y FD-68B dart tag and either released back into the same study area or introduced from an outside area. Of 986 fish tagged in the embayment, 89% were recaptured. Seventy-five percent of the marked fish were recovered in 9 cove areas, where marked fish were released back into the same cove section. James R. Axon, Larry Hart, Val Nash
Pages 680-687 |
1979 |
Fish Standing Crop Comparisons Of Tire And Brush Fish Attractors In Barkley Lake. Kentucky Tire and brush fish attractors were sampled during the Barkley Lake Rotenone Study. Standing crop comparisons were made between tire and brush attractors and control areas. Channel catfish (lctalurus punctatus), bluegill (Lepomis macrochirus), largemouth bass (Micropterus salmoides), and white crappie (Pomoxis annularis) were effectively concentrated by both types of attractors, although brush exceeded tires in concentrating all 4 species. Fish attractors were particularly effective in concentrating harvestable-sized fish. Bert E. Pierce, Gerald R. Hooper
Pages 688-691 |
1979 |
Prey-Predator Relations In Crooked Creek Bay. Barkley Lake. Kentucky Available prey-predator ratios (API P) in Crooked Creek Bay indicated a deficiency of prey for predators (largemouth bass equivalents) 200 mm long (total length) or less. Analysis of samples collected after the application of rotenone to small coves led to overestimates of available prey. Application of adjustment factors to account for differences in fish distribution in coves and in open water improved AP/ P estimates based on small-cove samples. After reviewing previous food studies, we redefined crappies longer than 210 mm and catfishes longer than 390 mm as predators. Robert M. Jenkins C. A. Schultz, William M. Seawell
Pages 692-702 |
1979 |
Estimates of the number of largemouth bass (Micropterus salmoides) 153 mm and longer in Crooked Creek Bay made by mark-recapture techniques were compared with rotenone estimates. Electrofishing was used to collect bass for marking, while electrofishing and angling provided recaptures. Estimates obtained by Petersen and Schnabel methods generally were lower than rotenone estimates. Both methods estimated the number of intermediate-size bass more accurately than adult bass. Fred A. Harris, Les M. Ager, Earl Hayes
Pages 703-709 |
1979 |