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.
1251 - 1300 of 4522 articles | 50 per page | page 26
| Article | Year |
|---|---|
Intensive Alligator Harvest on Salvador Wildlife Management Area, Louisiana, 1986-1990 During 1986-1990 an intensive harvest of alligators was conducted on Salvador Wildlife Management Area (SWMA). A total of 4,173 alligators averaging 1.84 m total length (TL) were harvested. Hunters successfully filled all tags and completed the harvest in only 12 to 16 days. Sex ratios, size class frequency distribution (SCFD), average length, and nest production all remained consistent throughout the study.
Pages 88-96 |
1992 |
Canvasback Food Density in the Mississippi River Delta, Louisiana: Habitat and Temporal Differences Wildlife managers have been creating deltaic splays in the Mississippi River Delta to promote marsh regeneration, but little is known of the quality of splays as waterfowl foraging habitat. Consequently, we compared densities of important canvasback (Aythya valisineria) foods in splays and open-water ponds during winter 1990- 91. Biomass (g/m2) of grassy arrowhead (Sagittaria graminea) tubers differed between splay mudflats and ponds, but the difference was not consistent between months. Alan D. Afton, Ronald R. Bielefeld
Pages 97-103 |
1992 |
Forest Industry Hunt-lease Programs in the Southern United States: 1989 Selected characteristics of forest industry hunt-lease programs were evaluated for 11 southern states in 1989. Mail questionnaires were returned by 62 (70%) of 89 landowners. The respondents reported owning 8.7 million ha of which 6.5 million ha (75%) were leased for hunting. The weighted average lease fee received was $5.31 per ha, a 60% increase from 1984 as reported by Busch and Guynn (1988). Additionally, respondents reported that public relations had a relative value equal to the lease fee and access control had a relative value of 1.45 times the lease fee. Gerald L. Stuckey, Jr., D. C. Guynn, Jr., A. P. Marsinko, W. M. Smathers, Jr.
Pages 104-109 |
1992 |
TELEDAT: An In-field Computer System for Processing Radio-telemetry Data TELEDAT is an interactive BASIC computer program written for the Texas Instruments TI-74 hand-held calculator to process and store radio-telemetry location data while in the field. TELEDAT simplifies field-tracking and increases the accuracy and precision of telemetered triangulation data by: (1) providing in-field estimation of animal location and receiver-to-transmitter distance; (2) calculating error polygon size and long diagonal; (3) identifying error conditions such as azimuths that do not cross or are near-parallel; and (4) reducing the error inherent in data coding and entry.
Pages 110-117 |
1992 |
Deer in Pocosin Habitat after Catastrophic Wildfire Pocosins are peat bogs that support dense, evergreen shrub cover providing abundant, low-quality browse for white-tailed deer (Odocoileus virginianus). This habitat type is subject to infrequent, intense wildfires, and in May 1986 a wildfire burned across 18,200 ha (>90%) of the Holly Shelter Game Land in eastern North Carolina. We studied the response of the deer population to the fire by comparing preand postfire data on density, harvest, physical condition, and nutrition. We also analyzed nutritional quality of browse samples from burned and unburned areas for 2 years after the fire. A. Sydney Johnson, P. E. Hale, J. S. Osborne, O. F. Anderson, W. M. Ford
Pages 118-127 |
1992 |
Habitat and Mortality Relationships of Wild Turkey Gobblers in the Georgia Piedmont Increasing hunting pressure and habitat loss have raised concerns about the age structure and potential overharvest of wild turkey (Meleagris gallopavo) populations in Georgia. Nineteen juvenile and 15 adult gobblers were radio-tracked during January 1989-June 1991 in the vicinity of Clark Hill Wildlife Management Area (WMA). Gobblers avoided the WMA in spring and summer, preferring fields and pastures on private land. They preferred the WMA in fall and winter. Upland hardwood was the most preferred habitat type. Michael R. Lelmini, A. S. Johnson, P. E. Hale
Pages 128-137 |
1992 |
Surveillance for Hemorrhagic Disease in White-tailed Deer and Other Wild Ruminants, 1980-1989 The orbiviruses, epizootic hemorrhagic disease (EHD) virus or bluetongue (BT) virus, cause a disease syndrome termed hemorrhagic disease (HD) in white-tailed deer (Odocoileus virginianus) and several other wild ruminants. An annual mail survey of state wildlife agencies was conducted from 1980-1989 to estimate the occurrence of HD in the continental United States. Thirty-one states reported confirmed or suspected HD activity, and 1,608 occurrences were reported in 880 counties or parishes. Victor F. Nettles, W. R. Davidson, D. E. Stallnecht
Pages 138-146 |
1992 |
Bobcat Home Range, Density, and Habitat Use in East-central Mississippi Fifteen bobcats (10 females, 5 males) were monitored using radio telemetry from 1 January 1989-31 December 1991 in east-central Mississippi. Male composite home ranges (HR) averaged 36.5 km2 (S.E. = 12.7) while female HR's averaged 20.6 km2 (S.C. = 7.7). Composite and seasonal HR sizes differed between sexes (P = 0.03 and P < 0.001, respectively). HR's were larger during the 1989 post-parturition (1 May-31 Aug) and fall (1 Sept-31 Dec) seasons than during most other seasons (P < 0.05). Intersexual HR overlap occurred during 5 of 9 seasons. L. Mike Conner, B. D. Leopold, K. J. Sullivan
Pages 147-158 |
1992 |
Relationship of Birth Date and Physical Development of Yearling White-tailed Deer in Florida Body mass and antler measurements from yearling, male white-tailed deer (Odocoileus virginianus) harvested in pine flatwoods of northwestern Florida were used to test the relationship between estimated birth date and physiological indices. Age, estimated by the degree of third mandibular molar eruption, was related to the body mass and antler development of yearling bucks (P < 0.001). Late parturition in this region appears to contribute to poor antler development and low body mass of yearling bucks. Stephen M. Shea, T. A. Breault, M. L. Richardson
Pages 159-166 |
1992 |
Feral Hog Control Efforts on a Coastal South Carolina Plantation During a 19-month intensive control program 589 feral hogs (Sus scrofa) were removed from 4,500 ha of forest-marsh habitat in the lower Coastal Plain of South Carolina. Of 112 adult females removed, 66 were pregnant, 79 were lactating, and 44 of these were pregnant and lactating. Of 43 females in the 6-11 months age class, 34 had conceived at least 1 litter by the time of death and 9 had conceived twice. Litter size in 45 females was 5.0 ± 2.3. Cost per animal removed was $54. A substantial number of animals remained in the habitat after the program was terminated. Gene W. Wood, L. A. Woodward, D. C. Mathews, J. R. Sweeney
Pages 167-178 |
1992 |
The Clemson Beaver Pond Leveler The Clemson beaver pond leveler (leveler) was developed as an instrument to suppress the adverse effects of beaver activity that results in flooding timberlands and agricultural crops and damage to road drainage and water-control structures. It has also proven to be useful in manipulating beaver pond levels for waterfowl habitat management. Nine case studies involving 25 test sites have shown the Leveler to be successful over a moderate range of conditions in the lower Coastal Plain and upper Piedmont regions.
Pages 179-187 |
1992 |
Artificial Mineral Licks: Longevity, Use and Attitudes We studied longevity, depletion rate, and peak periods of use by white-tailed deer {Odocoileus virginianus) of minerals at artificial lick sites on a clay soil in the Georgia Piedmont in 1990 and 1991. We also surveyed attitudes among southeastern state wildlife agencies about providing mineral supplementation for deer. Results indicated a rapid loss of sodium (Na) to leaching. Leaching rates for calcium (Ca), iron (Fe), magnesium (Mg), manganese (Mn), phosphorus (P), potassium (K), and zinc (Zn) were low. Reggie E. Thackston, H. T. Holbrook
Pages 188-193 |
1992 |
Post-juvenal Primary Feather Molt of Wild Mourning Doves in Texas Comparison of observed age at post-juvenal primary molt of wild mourning doves (Zenaida macroura) with predicted ages from 5 published aging studies revealed differences (P < 0.1) for all comparisons. Observed molt occurred at an older (P < 0.0001) age than predicted by the current standard for aging juvenile doves. A new model for aging mourning dove juveniles using molt data from primaries 1-9 is presented based on data collected from wild birds on the Texas A&M University Campus. The wide range in observed age at molt of primary 10 precluded its use in these analyses. Michael E. Morrow, N. J. Silvy, W. G. Swank
Pages 194-198 |
1992 |
A Comparison of 1990-1991 State and Federal Goose Harvest Estimates for Tennessee A multi-phase mail and telephone survey of 9,000 hunters was used to estimate the harvest of Canada geese (Branta canadensis) in Tennessee during the 1990-91 hunting season. The estimate, 13,429 (CI ± 2,469), was substantially lower than that produced by the annual waterfowl harvest survey conducted by the U.S. Fish and Wildlife Service for that same period. If a high degree of accuracy is needed by states when formulating season framework and harvest recommendations, a detailed state-specific survey may be needed.
Pages 199-206 |
1992 |
Ruffed Grouse Food Availability in Southwestern Virginia We initiated a pilot study of fall and winter ruffed grouse (Bonasa umbellus) habitat use, forage availability, and forage-based carrying capacities for an area in southwestern Virginia. Flush counts indicated grouse densities were low and that grouse preferred clearcuts in the fall. Fall forages appeared adequate to support moderate grouse populations. High quality forages (mast and herbaceous leaves) were scarce during the winter and resulted in low carrying capacity estimates. Evergreen forages were abundant in both seasons but toxic properties likely limited their utility. David G. Hewitt, F. A. Servello, R. L. Kirkpatrick
Pages 207-214 |
1992 |
Harvest and Band Recovery of Captive-reared Mallards Released by the State of Maryland, 1974-1987 Maryland Department of Natural Resources personnel banded 52,193 captive-reared mallard ducks (Anas platyrhynchos) released in Maryland from 1974— 1987. Although most recoveries (91%) occurred in Maryland, ducks that survived a single hunting season, particularly males, were more likely to be recovered outside the state. Most recoveries (79%) of state-released mallards occurred during the first hunting season after release and nearly all (>99%) occurred within 5 hunting seasons. Larry J. Hindman, W. F. Harvey, IV, V. D. Stotts
Pages 215-222 |
1992 |
Reintroduction and Colony Expansion of the Brown Pelican in Louisiana The eastern brown pelican (Pelecanus occidentalis carolinensis) virtually disappeared from Louisiana by 1963. The Louisiana Department of Wildlife and Fisheries (LDWF) and Florida Game and Fresh Water Fish Commission (FGFWFC) reintroduced from Florida to southeastern Louisiana 1,276 fledgling pelicans at 3 release sites between 1968 and 1980. Florida transplants established 2 restored nesting populations, 1 at North Island in the Chandeleur Island chain and 1 at Queen Bess Island in Barataria Bay. Larry McNease, D. Richard, T. Joanen
Pages 223-229 |
1992 |
A Method for Age Determination of Active Red-cockaded Woodpecker Cavities A method for determining the ages of active red-cockaded woodpecker (RCW) (Picoides borealis) cavities was developed based on data from 22 RCW cavity trees downed in the Francis Marion National Forest by Hurricane Hugo. Cavity age was measured in growing seasons of the tree from the date of cavity initiation. Age determination was based macroscopic and microscopic wound responses in wood removed from the side of the cavity entrances. The method was tested on 8 active cavities of known age located in the Sandhills Gamelands, North Carolina. Erik D. Doerr, R. A. Lancia, P.D. Doerr
Pages 230-240 |
1992 |
Pre-sunrise Shooting at Nontarget Waterfowl during September Wood Duck Seasons Kentucky Department Fish and Wildlife Resources and Tennessee Wildlife Resource Agency evaluated the impact of pre-sunrise shooting on nontarget species during the 1991 September wood duck (Aix sponsa) season. Concealed observers in Kentucky and Tennessee recorded shooting activities of 88 hunting groups during the September wood duck season to determine if hunters discriminated between wood ducks and nontarget species during one-half hour before sunrise versus one-half hour after sunrise. A total of 424 single or flocks of waterfowl passed within shotgun range of observed hunters. Ronald D. Pritchert, Jr., J. F. Hopper
Pages 241-248 |
1992 |
Habitat Use of Wild Turkey Gobblers on Tallahala Wildlife Management Area, Mississippi Seasonal habitat use was monitored for 130 radio-equipped wild turkey (Meleagris gallopavo) gobblers on Tallahala Wildlife Management Area, Mississippi, 1986-90. Juvenile and adult gobblers used a variety of habitats within each season and usually exhibited similar trends in habitat use. In summer (Jun-Sep) both age classes used bottomland hardwoods less than expected during most years. However, use of bottomland hardwoods was greater than availability during spring. K. David Godwin, G. A. Hurst, B. D. Leopold, R. L. Kelley
Pages 249-259 |
1992 |
Nesting Habitat of American Alligators in Coastal South Carolina We determined nest occurrence and density among habitats and described physical factors associated with nesting sites for American alligators (Alligator mississippiensis) in coastal South Carolina. Nests were located in managed impoundments more than expected, remnant impoundments less than expected, and unaltered wetlands as expected. Nest densities averaged 1/83 ha, 1/225 ha, and 1/286 ha in impoundments, unaltered wetlands, and remnant impoundments, respectively. Most (96%) nests were found in fresh to brackish wetland types. Salinity of nearest water to the nest averaged 6.74 ppt. Philip M. Wilkinson, W. E. Rhodes
Pages 260-265 |
1992 |
Effects of Scale on Predictive Power of Two Bald Eagle Habitat Models We examined the role scale plays in determining the predictive power of bald eagle (Haliaeetus leucocephalus) habitat models. We used a bald eagle roost habitat database that included 35 roost sites and 123 random sites located and characterized on the Chesapeake Bay from 1985-1988. A micro-habitat model, based on 6 micro-scale variables correctly classified 80% of the roost sites. A macro-habitat model, based on 10 macro-scale variables, correctly classified only 63% of the roost sites. David A. Buehler, J. D. Fraser, J. K. D. Seegar
Pages 266-273 |
1992 |
Production and Nutritional Quality of Selected Plantings for White-tailed Deer Forage production and nutritional quality were determined for 11 cool-season and 6 warm-season forages for white-tailed deer (Odocoileus virginianus) on a site in the Piedmont Plateau of Alabama from 1989 to 1991. Cool-season forages produced from 1,355 to 5,946 kg/ha (dry-matter basis) of forage per season containing from 56% to 84% total digestible nutrients (TDN), 8% to 30% crude protein (CP), 16% to 67% neutral detergent fiber (NDF), 0.15% to 2.34% calcium, 0.10% to 0.40% phosphorus, and 0.85% to 4.59% potassium per clipping. Neil A. Waer, H. L. Stribling, M. K. Causey
Pages 274-286 |
1992 |
Waterfowl Hunting and Harvest on Sam Rayburn Reservoir, 1986-1987 Interviews and self-administered questionnaires were used to gather data to characterize waterfowl hunters and harvest on Sam Rayburn Reservoir in east Texas during the 1986-87 season. Interviewed hunters and those submitting questionnaires averaged 0.94 and 1.31 ducks per trip, respectively (P = 0.003). Hunters per party, hours per trip, shots per trip, and shots per duck bagged averaged 2.19, 2.96, 5.63, and 5.07, respectively. These values and ducks harvested per trip (1.18) varied significantly across the season (P < 0.050). Based on interviews, an estimated 7,971 ducks were bagged. R. Montague Whiting, Jr., S. V. Rockwood
Pages 287-297 |
1992 |
Orangemouth Corvina and Orangemouth Corvina x Spotted Seatrout Hybrids in a Freshwater Reservoir Post-stocking survival, biomass, food habits, growth, and angler utilization of orangemouth corvina (Cynoscion xanthulus) (OMC), spotted seatrout (C. nebulosus) (SST) X OMC hybrids, and OMC X SST hybrids were monitored from 1986 to 1990 at Calaveras Reservoir, a south Texas urban impoundment, after introductions from 1984 to 1986. Survival was excellent for all introduced fishes. Peak catch per unit effort by gill nets coincided with peak biomass estimates determined from cove rotenone sampling in 1987. Wilfred J. Dean, Jr., J. A. Prentice
Pages 298-306 |
1992 |
Largemouth Bass Creel Results for Tournament and Non-tournament Anglers, Lake Kissimmee, Florida The Lake Kissimmee roving creel survey, ongoing since 1974, was an excellent mechanism for determining annual harvest, effort, and success of tournament and non-tournament anglers fishing for largemouth bass (Micropterus salmoides). On an annual basis, tournament anglers accounted for 34% to 37% of the total annual catch, which included released fish. Tournament bass fishermen exerted an estimated annual effort of 83,327, 66,639 and 74,077 man-hours in 1989, 1990, and 1991, respectively. Mikel W. Hulon, E. J. Moyer, R. W. Hujik, R. S. Butler, S. B. Cook
Pages 307-313 |
1992 |
White crappie (Pomoxis annularis) stock structure and catch rate estimates and their associated variances were compared between 1-night and 3-night frame-net sets. We set paired frame nets at each of 5 stations on 3 reservoirs in fall and early winter 1990. We ran 1 net of each pair the morning after it was set; the second net of each pair was allowed to fish for 3 nights continuously. PSD and RSDp estimates from each sampling regime were similar. Three night sets significantly increased precision of PSD estimates.
Pages 314-319 |
1992 |
Angler Exploitation of Largemouth Bass ≥356 mm at Sam Rayburn Reservoir, Texas Tournament-caught largemouth bass (Micropterus salmoides) were tagged and released in Sam Rayburn Reservoir, Texas, in early spring 1989 and 1990. Studies conducted on a sample of these fish indicated 4% initial mortality and 94% tag retention. Angling contests were held for 15 weeks (1 April-15 July) each year to recapture fish. Recapture rates by contest anglers provided estimates of exploitation over the 15- week period. Voluntary release of bass was 52%-57%. The estimated exploitation rates for 15-week periods in 1989 and 1990 were 0.27 and 0.47, respectively. James 0. Parks, E. P. Seidensticker
Pages 320-326 |
1992 |
The objective of this study was to evaluate the effect of an introduced predator (saugeye; Stizostedion vitreum X Stizostedion canadense) on the density of intermediate-size white crappie (Pomoxis annularis) and to provide a prey species (threadfin shad; Dorosoma petenense) to facilitate the crappie dietary shift from invertebrates to fish. Concomitant annual stockings of fingerling saugeye and adult threadfin shad were initiated in 1985 and continued through 1991.
Pages 327-336 |
1992 |
Survival of Hook-caught Red Drum Sub-legal red drum (<355 mm) collected with angling gear during 1988 and 1989 were held in confinement to evaluate post-hooking survival. Short-term posthooking survival was 84% in both years. Most fish were hooked in the maxilla area and 92% of these individuals survived. Gill-hooked fish comprised 13% of the red drum collected and exhibited 68% survival. Only 10% were hooked in the esophagus; however, these fish had the lowest survival (47%). Angler recapture rates of marked hookcaught red drum were similar to those of marked net-captured fish during 1988. Shawn R. Jordan, A. G. Woodward
Pages 337-344 |
1992 |
Red Drum Life History and Sport Fishing Trends in a Freshwater Reservoir Growth, survival, angler utilization, and fishery characteristics of red drum (Sciaenops ocellatus) were monitored after introduction into Braunig Reservoir, a freshwater urban power-plant cooling reservoir in South Texas. Growth was rapid with individuals reaching 412, 592, 683, and 728 mm TL by 12, 24, 36, and 48 months, respectively. Red drum reached harvestable size (51 cm TL) within 2 years after stocking. Average annual survival was 35.7%, higher than reported for Texas coastal populations. John A. Prentice, W. B. Dolman
Pages 345-356 |
1992 |
The visible opaque bands in transverse sections of sagittal otoliths from bluegill (Lepomis macrochirus), redear sunfish (L. microlophus), and redbreast sunfish (L. auritus) were verified as annual rings. The verification was done using intraperitoneal injections of oxytetracycline followed by otolith examination after the fish were at liberty for 1 year in a north central Florida pond. Injections of 75 mg/kg wet body weight resulted in the best rate of fluorescent ring formation. Louis Mantini, M. V.Hoyer, J. V. Shireman, D. E. Canfield, Jr.
Pages 357-367 |
1992 |
Effects of a 356-mm Statewide Minimum Length Limit on Abundance of Adult Largemouth Bass in Texas Statewide 356-mm minimum-length and 5-fish daily creel limits for largemouth bass (Micropterus salmoides) were evaluated on 28 Texas reservoirs. Electrofishing catch rate data were used to evaluate changes in adult largemouth bass density and size structure 2 years after the limits were implemented. Statewide regulations successfully increased adult largemouth bass densities in Texas reservoirs. Electrofishing catch rates of fish ≥254 mm and those ≥356 mm increased significantly across the study reservoirs. Largemouth bass size structure also shifted towards larger fish.
Pages 368-376 |
1992 |
In November 1988, Purtis Creek State Park Lake opened to public fishing with a catch-and-release regulation for largemouth bass (Micropterus salmoides). The objective of the regulation was to prevent initial overharvest and provide a quality fishery under high anticipated fishing pressure. The fishery was evaluated using spring electrofishing and annual creel surveys. No illegal bass harvest was observed during creel surveys. The proportion of bass ≥356 mm declined and PSD shifted from >80 into the 40-70 range within 2 years. Kevin W. Storey, R. A.Ott, Jr.
Pages 377-385 |
1992 |
Population assessments for largemouth bass (Micropterus salmoides) were conducted via electron1 shing during 1987-1988 in tailwaters, bendways, and navigation channels of the Tennessee-Tombigbee Waterway below Aberdeen and Columbus Dams. Growth rates and asymptotic lengths did not differ significantly among locations or between systems. Proportional stock density (PSD), relative stock density (RSD), and catch per unit of effort (CPUE, fish/hour) did not differ significantly between years or systems. Bradley J. Marler, D. C. Jackson
Pages 386-392 |
1992 |
Results from statewide angler surveys conducted during 1987 through 1990 were combined to examine demographic and social characteristics and management preferences of Texas freshwater catfish anglers. Catfish anglers were grouped by their first-choice responses when asked to "Name the fish you most prefer to catch in fresh water in Texas." Anglers for blue catfish (Ictalurus furcatus), channel catfish (/.
Pages 393-401 |
1992 |
Evaluation of Commercial Feeds for Rearing Advanced Fingerling Walleye An experiment was conducted to evaluate the suitability of 5 commercial feeds3 for rearing juvenile walleye (Stizostedion vitreum). Two open-formula feeds (the coolwater W-16 formulation and the Abernathy salmon formula) and 3 closedformula trout and salmon feeds (Glenco Mills trout feed, BioMoist, and BioDry) were evaluated. Craig R. Stettner, R. C. Summerfelt, K. L. Kuipers
Pages 402-412 |
1992 |
Hooking Mortality of Striped Bass in Lake Texoma, Texas-Oklahoma We investigated mortality of striped bass (Morone saxatilis) within a length range of 229-762 mm total length (TL), caught with artificial lures with a single hook, artificial lures with treble hook(s), and live bait with a single hook. Striped bass (N = 307) were caught during a 2-year period in Lake Texoma starting June 1989 and concluding June 1991. Captured fish were measured, fin-punched for identification, and transported to a net pen in the lake and held 72 hours. Overall, hooking mortality was 38%. Bruce T. Hysmith, J. H. Moczygemba, G. R. Wilde
Pages 413-420 |
1992 |
Placement of dredged rock material (90% < 5 cm in diameter) on degraded sand disposal sites in the Apalachicola River, Florida, to enhance sportfish populations was evaluated between July 1988 and November 1989. Newly created rock habitats and training dikes yielded significantly greater (P < 0.05) sportfish catch per unit effort (CPUE) than did sand disposal sites. Water velocity, rock size, water depth, and site orientation with respect to river flow were more important in determining sportfish abundance than rock site configuration. Charles L. Mesing, S. Hardin, M. J. Hill
Pages 421-433 |
1992 |
Mortality of Spotted Seatrout, Red Drum, and Black Drum Caught in Gill Nets In-net mortality of spotted seatrout (Cynoscion nebulosus), red drum (Sciaenops ocellatus), and black drum (Pogonias cromis) caught in gill nets with 7.6,10.2, 12.7, and 15.2 cm stretch mesh was determined in Texas bays during 1985-87. Spotted seatrout had greatest mortality (74%) followed by red drum (55%) and black drum (28%). For each species, in-net mortality was significantly different among meshes, among bays and between seasons. Among these 3 factors, mesh size was the most important in predicting mortality variation. Peng Chai, L. W. McEachron, K. W. Rice, G. C. Matlock
Pages 434-439 |
1992 |
This report reviews the environmental and social concerns associated with net pen aquaculture in coastal waters, identifies potentially significant impacts of operations in the northern Gulf of Mexico, and proposes site selection and planning guidelines. There are 5 major areas of potential environmental concern: water quality alterations and their consequences, sedimentation and benthic effects, chemical usage, disease transmission, and escaped fish (exotic species, genetic impacts). Jurij Homziak, J. Buchanan, L. Lewis
Pages 440-452 |
1992 |
Florida Largemouth Bass Raceway Spawning Substrate Evaluation Six different nest substrates, including combinations of rock, gravel, and black fibrous synthetic spawning mats, were evaluated for the raceway spawning of Florida largemouth bass (Micropterus salmoides floridanus). Sixty-nine of the 74 spawns (93%) were deposited on fibrous spawning mats. Raceway spawning on fibrous mats enabled the intensification of Florida largemouth bass culture.
Pages 453-457 |
1992 |
Striped bass inhabiting Lake Keystone, Oklahoma, spawn in a 150-km long reach of the Arkansas River below Kaw Dam. We sampled ichthyoplankton in this reach from mid-March through May in 1987 and 1988 to determine when and where striped bass spawning occurred. Collections were made twice weekly with conical plankton nets fished just below the surface from 4 bridges and by boat in the Kaw Dam tailwater.
Pages 458-468 |
1992 |
Identification of Commercial Penaeid Shrimp Species by Isoelectric Focusing Muscle proteins were isolated from 7 western Atlantic and 10 Pacific Ocean Penaeus species encompassing 6 subgenera utilizing isoelectric focusing. Protein banding patterns of individuals from the 17 species were distinguishable. A high resolution gradient of pH 4.5-5 was required to separate complex banding patterns and facilitate identification among species possessing similar banding patterns. Most species were characterized by the presence of 2-6 major protein bands in the pH 4.62-4.95 range. Tim L. King, I. R. Blandon, P. C. Hammerschmidt
Pages 469-476 |
1992 |
Effects of Freshwater Flooding on Eastern Oyster Populations in a Texas Estuary Relative abundance of Eastern oysters (Crassostrea virginica) was monitored before, during, and after a record flood in a Texas estuary. Salinities were reduced to <5 ppt over a large portion of the estuary for 4 months. Eastern oyster mortality was near 100%. Spat set was documented 9 months after flooding ceased and the oyster population had recovered to preflood levels 15 months later, 25 months after flooding ceased. A Ricker recruitment curve was fitted to the spawner-recruit data and explained 20.8% of the variation in number of spat. Norman W. Boyd, G. Matlock, L. W. McEachron, C. E. Bryan
Pages 477-486 |
1992 |
Experimental Stocking of Florida Largemouth Bass into Small Oklahoma Reservoirs Thirteen Oklahoma reservoirs (<120 ha) containing northern largemouth bass (Micropterus salmoides salmoides) populations were stocked with Florida largemouth bass (M. s. floridanus) for 3 years. Stocked and native fish were identified phenotypically by electrophoresis. Stocked fish made up an average of 15% of each year class in the fall at age 0, but the mean proportion declined to 5% by the following spring. Relative overwinter survival to age 1 averaged 25%.
Pages 487-494 |
1992 |
Evaluation of Rainbow Trout Stockings on Richard B. Russell Reservoir1 Establishment of a trophy (2500 mm TL) rainbow trout, Oncorhynchus mykiss, put, grow, and take fishery was evaluated with tag rewards and creel surveys. Over 310,000 catchable rainbow trout were stocked in Richard B. Russell Reservoir from 1988 to 1991. A $5.00 reward was offered for return of tags from 28,000 trout. Yearly tag returns ranged from 9.8% to 2.6%. Average tag reporting rate was 42% with a high of 50% and a low of 37%. Tag loss was estimated at 16.6% in 1991. Jerome F. Germann, Z. E. Bunch, J. P. Durniak
Pages 495-504 |
1992 |
Evaluation of Unattended Yo-yos and Triggers The establishment of black bass (Micropterus sp.) size restrictions on some Louisiana lakes prompted a study to determine the catch and mortality rates of unattended yo-yos and triggers. From 15 November 1991 to 11 March 1992 gears were fished in close proximity in 5 impoundments a total of 825 nights per gear. The catch rate for all species was 0.168 fish/yo-yo night and 0.080 fish/trigger night. Largemouth bass (M. salmoides) catch rates were 0.005 fish/yo-yo night and 0.002 fish/trigger night.
Pages 505-509 |
1992 |
Comparison of Texas Recreational Reef Fish and Non-reef Fish Anglers Social and economic data comparing reef fish and non-reef fish anglers from Texas Parks and Wildlife Department's routine on-site creel intercept surveys and annual statewide mail survey were summarized. Reef fish anglers differ significantly from non-reef fish anglers in that they report being more consumptive-oriented in their fishing motivations, spending less per trip and less on durable goods, and rate themselves lower in their fishing skills compared to their peers. Tom Wagner, H. Osburn, G. Matlock
Pages 510-521 |
1992 |
Law Enforcement's Response to AIDS and Hepatitis B In response to new state mandates and increasing concerns regarding the risks and seriousness of exposure to the AIDS and Hepatitis B viruses, the Law Enforcement Division of Texas Parks and Wildlife drafted an AIDS/Hepatitis B policy and instituted an ongoing training program. The training program is designed specifically for game wardens and equips them with the knowledge, skills, and equipment to respond to this growing concern.
Pages 522-531 |
1992 |