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.
1801 - 1850 of 4522 articles | 50 per page | page 37
| Article | Year |
|---|---|
Determining Deer Habitat Capability in Ouachita National Forest Pine Stands On the Ouachita National Forest of Arkansas and Oklahoma, mean total forage yields in various age shortleaf pine (Pinus echinata) stands ranged from 1,914 kg/ha in young stands to 172 kg/ha beneath mature stands. Forage nutrient analysis in late summer revealed low phosphorus (0.12%), low crude protein (7.72%), high calcium (1.07%), and wide Ca:P ratio (9.5) averages. Average crude protein was significantly higher (8.22%) in stands with site index <61 than in stands with site index ≥61 (7.23%). James D. Fenwood, David F. Urbston, Richard F. Harlow
Pages 13-22 |
1984 |
Age, Condition, and Genetic Effects on Incidence of Spike Bucks Data were taken from 3,721 male white-tailed deer (Odocoileus virginianus) harvested from the Savannah River Plant in South Carolina for the years 1977 to 1982 to document the incidence of spike bucks relative to habitat differences, harvest methodology, body weight, condition, and genetic variability. Of the 1.5-year-old bucks harvested, 33.1% had spike antlers. The incidence of spike or non-spike antlers was significantly correlated with age (r =0.29) and body weight (r =0.37). Significant differences in the incidence of spike bucks were observed between swamp and upland habitat types. Kim T. Scribner, Michael H. Smith, Paul E. Johns
Pages 23-32 |
1984 |
Potential Impact of Liberalized Regulations to Promote Spike Buck Harvest Spike-antlered white-tailed deer (Odocoileus virginianus) are common in Texas. Research has shown these animals to be inferior to their herd cohorts. Attempts to upgrade buck quality have focused attention on the removal of spikes from the herd to a point of annihilation. An evaluation of harvest data collected annually in Texas shows that spike bucks are essentially a product of deteriorated range conditions. Harvest regulations aimed at the systematic removal of spike-antlered bucks have been proposed as a solution for improving deer quality.
Pages 33-42 |
1984 |
Selection for Antler Points and Body Weight in White-Tailed Deer Body weight and antler measurements collected from pen-reared white-tailed deer (Odocoileus virginianus) on the Kerr Wildlife Management Area, Hunt, Texas, indicated that yearling bucks with <6 antler points are genetically inferior for both antler development and body weight. Simple correlation coefficients for body weight and total antler points were 0.59, 0.51, and 0.48 at 1.5, 2.5, and 3.5 years, respectively (P < 0.0001). John D. Williams, Donnie E. Harmel
Pages 43-50 |
1984 |
Activities of Black Bears in Cherokee National Forest, Tennessee Radio-collars equipped with activity monitors were attached to 18 black bears (Ursus americanus) in Cherokee National Forest, Tennessee. Bears exhibited a crepuscular pattern of activity that varied seasonally. Activity levels were low after bears emerged from dens, escalated rapidly in June and July, reached a peak in August, and diminished gradually until denning. Activities of bears were affected by individual differences among bears, weather factors, and denning. Sex, age, and reproductive classes also affected activity patterns. R. Steven Garris, Michael R. Pelton
Pages 51-60 |
1984 |
Characteristics of Black Bear Cubs in the Southern Appalachians Female black bears (Ursus americanus) were captured and radio collared in Cherokee National Forest (CNF) and Great Smoky Mountains National Park (GSMNP) from 1980 to 1982. Whereas most females den in inaccessible tree cavities high above ground, during the 1981-82 winter, 66% in the CNF and GSMNP denned on the ground affording scientists the opportunity to directly examine 15 litters. Litter sizes ranged from 1 to 4 (x =2.58), were comparable with litter sizes reported from other parts of the United States, and were similar among age classes of females. William G. Wathen, Michael R. Pelton
Pages 61-69 |
1984 |
Proximity of Adult Female Black Bears to Limited Access Roads Seven adult female black bears (Ursus americanus) were radio monitored from 1980 to 1982 in Great Smoky Mountains National Park. Bears showed no avoidance of limited access roads and trails, frequently crossed roads and trails during any given 24-hour period, and used areas around them. Response to seasonally abundant food supplies, rather than avoidance or other behavioral adjustments by individual bears, seemed to determine whether bears crossed roads and trails and used areas around them in this protected population. Patrick C. Carr, Michael R. Pelton
Pages 70-77 |
1984 |
Mortality and Reproduction of Stocked Eastern Turkeys in East Texas Mortality and reproduction of 65 stocked eastern turkeys (Meleagris gallopavo silvestris) were studied using radio telemetry on 2 different areas in east Texas from February 1979 through July 1981. The known survival rate was 62% after 1 year and 48% at the end of the study period. The known mortality rate was 11 % after 1 year and 21% at the end of the study period. Predation on hens during the nesting and early brood-rearing season was the greatest loss of adult turkeys. A high rate of nesting and renesting indicated a high reproductive potential for these turkey populations. Joseph J. Campo, Curtis R. Hopkins, Wendell G. Swank
Pages 78-86 |
1984 |
Breeding Bird Species in Florida Forest Fragments Breeding bird counts were conducted in 12 mesic hardwood hammock islands in north central Florida during April and May 1978. The number of species observed to defend territories in the habitat islands was a direct function of island area. The form of the species-area curve is sensitive to the criterion used to define a “breeding” species. If presence on 3 of 4 counts is required before a recorded species is considered to be a breeding species, then small islands are shown to support many fewer species and the slope of the species area curve is increased by 25 %.
Pages 87-96 |
1984 |
Habitat-Island Effects on the Avian Community in Cypress Ponds Breeding season bird communities were sampled using point counts on 12 cypress-pond habitat islands in central Florida during May and June 1983. Habitat islands studied ranged from 7 to 229 ha in size. Of 38 species of birds detected, none was restricted to islands larger than 20 ha. Contrary to theoretical predictions, total species richness did not increase with island area. Both species richness and total counts on the sample points were negatively correlated with island area parameters and distance from island perimeter.
Pages 97-110 |
1984 |
Bird Abundance and Distribution in a North Florida Phosphate Mine Seasonal bird use in 5 habitat types associated with phosphate mining was examined in Hamilton County, Florida, in 1979 and 1980. Bird densities were highest in late successional settling ponds and lowest in reclaimed habitats. Early successional settling ponds contained the greatest number of species. Conversion of unreclaimed mines or late successional settling ponds to reclaimed habitats resulted in decreases in all abundance and diversity estimates. David S. Maehr, Wayne R. Marion
Pages 111-120 |
1984 |
Criteria for Evaluating Impacts of Development on Wildlife Habitats Determinations of the habitat values of a particular site can be viewed from the perspective of either individual wildlife species or the wildlife community as a whole. When reviewing development proposals, the habitat values of a site to particular species are most important when species listed as endangered or threatened are present since these species are among our highest conservation priorities. In the absence of listed species, the habitat values of a site to the entire wildlife community assume importance.
Pages 121-136 |
1984 |
Woodcock Utilization of Bottomland Hardwoods in the Mississippi Delta Flush counts (N = 182) of American woodcock (Scolopax minor) wintering in the Delta region of Mississippi from 1981 to 1982 demonstrated that regeneration stands were used as diurnal coverts more often than other seral stages of bottomland hardwoods. Significant numbers of woodcock also utilized mature stands. Few birds were found in pole stands or cottonwood (Populus deltoides) plantations. Management suggestions and research needs are discussed. Thomas H. Roberts, Edward P. Hill, Ernest A. Gluesing
Pages 137-141 |
1984 |
Breeding Biology of the American Woodcock in Piedmont, North Carolina Woodcock (Scolapax minor) were observed and collected in the Piedmont region of North Carolina, from November 1977 through June 1978 and from November 1978 through March 1979 for studies of their courtship behavior, reproductive physiology, and breeding chronology. Male courtship behavior began in early December and terminated in early June, with February and March having the greatest numbers of singing males. However, individual males spent more time on the singing grounds during March, April, and May. Testicular recrudescence was apparent by early January. Ernest L. Rushing, Phillip D. Doerr
Pages 142-152 |
1984 |
Movement and Survival of Mourning Doves Banded Pre-season in Texas Mourning doves (Zenaida macroura) were banded pre-season (May-August) on the Texas A&M University campus as nestlings, free-flying juveniles, or adults. Analysis of direct hunter recoveries revealed no differences (P> 0.05) between the 3 banding classes and recovery distance. Calculation of survival rates from capture-recapture data indicated that adult survival (46.2%) was higher (P < 0.0001) than first year survival of immatures (free-flying juveniles 18.0%, nestlings 19.5%). Albert E. Bivings, IV, Michael E. Morrow, Nova J. Silvy
Pages 153-157 |
1984 |
Diurnal Time-activity Budgets for Ring-necked Ducks Wintering in Central Florida Ring-necked duck (Aythya collaris) activities were monitored from mid-November 1979 to late February 1980 on a retired phosphate settling impoundment in central Florida. Time-activity budgets of males and females were similar. Activities of wintering ring-necked ducks were directed at putting on fat reserves prior to reproduction. Birds invested most of their time feeding and resting; courtship and aggression were rarely observed.
Pages 158-164 |
1984 |
The Brown Pelican Restocking Program in Louisiana The eastern brown pelican (Pelecanus occidentalis carolinensis) ceased nesting in Louisiana in 1961 and the species completely disappeared by 1963. From 1968 to 1980, the Louisiana Department of Wildlife and Fisheries and Florida Game and Fresh Water Fish Commission reintroduced 1,276 pelicans at 3 release sites in southeastern Louisiana. Two restored nesting populations were established, 1 at North Island in the Chandeleur Island chain and 1 at Queen Bess/Camp Island in Barataria Bay. The Queen Bess/Camp Island colony fledged 2,751 birds between 1971 and 1984. Larry McNease, Ted Joanen, David Richard, Joseph Shepard, Stephen A. Nesbitt
Pages 165-173 |
1984 |
Activity and Movements of Coyotes in Mississippi and Alabama Daily activity, home-range size, and seasonal and dispersal movements of 13 coyotes (Canis latrans) were studied in eastern Mississippi and western Alabama using telemetry techniques. Coyotes were most active and traveled the greatest distances between 1800 hours and 0600 hours. The highest movement rates occurred near sunset and sunrise. Mean distances traveled during 12-hour full-night periods were greatest for adult females (9.5 km) followed by adult males (8.6 km) and juveniles (5.6 km). Perry W. Sumner, Edward P. Hill, John B. Wooding
Pages 174-181 |
1984 |
Coyote Food Habits in Mississippi and Alabama Food habits of coyotes (Canis latrans) from the upper coastal plain province of Alabama and Mississippi were determined from scats (N =211) and stomachs (N = 100) collected from December 1980 through April 1984. Frequency of occurrence of major food items found in scats and stomachs for all seasons were rodents (43.1 %), fruit (38.6%), rabbits (34.7%), insects (29.9%), white-tailed deer (28.0%), and birds (22.5%). Seasonally, rabbits and rodents occurred most frequently in spring; rodents, insects, and birds in summer; fruit, primarily persimmons, in fall; and deer and rodents in winter. JohnB. Wooding, Edward P. Hill, Perry W. Sumner
Pages 182-188 |
1984 |
Controlling Beaver in the Gulf Coastal Plain From December 1979 to May 1983, beaver (Castor canadensis) control trapping was conducted in 50 impoundments in the Gulf Coastal Plain of Alabama, Mississippi, and Louisiana. About 76% of impoundments contained beaver at some time within 3 years following initial heavy trapping. Age structure of beaver from impoundments trapped for 4 successive years did not differ significantly from that of the first year. Repopulation of drained impoundments appears to be enhanced by flooding. Many beaver problems are associated with manmade levees, railroads, and other roadbeds. Mark K. Johnson, Don R. Aldred
Pages 189-196 |
1984 |
Methods of Determining Litter Size in Beaver Estimates of litter size in beaver (Castor canadensis), based on counts of corpora lutea, placental scars, and corpora albicantia, were compared to known litter size determined by fetus counts. Estimates based on corpora albicantia (x = 4.2) were significantly higher (P < 0.05) than with any other method. Numbers of corpora lutea (x = 3.0), placental scars (x = 2.8), and fetuses (x = 2.6) did not differ (P > 0.05). No reproductive parameter differed by beaver age-class. T. Bently Wigley, Thomas H. Roberts, Dale H. Arner
Pages 197-200 |
1984 |
Louisiana's Alligator Management Program Inventory methods, harvest regulations, tagging requirements, reporting requirements, and a computer program were established to regulate and monitor the harvest of surplus alligators (Alligator mississippiensis) in Louisiana and yet distribute the kill in proportion to existing populations over the area open for harvest. Ten seasons were authorized for the taking of alligators between 1972 and 1983. In 1972, only 1 parish was open for hunting; the hunt area was gradually expanded until in 1981 it was statewide. Ted Joanen, Larry McNease, Guthrie Perry, David Richard, Dave Taylor
Pages 201-211 |
1984 |
Alligator Nesting Ecology in Two Habitats in Southern Georgia Alligator (Alligator mississippiensis) nest characteristics from 2 different habitats in southern Georgia were compared. Nest and egg measurements varied somewhat between Silver Lake, an open freshwater habitat, and Rhetts Island, a brackish marsh habitat. However, except for the distance nests were found from water, none of the differences between study areas were significant. Mean clutch size for the Silver Lake study area was 38.0 while that of Rhetts Island was 40.7. Fertility rate of eggs on Silver Lake was 92.1 %. Steven W. Ruckel, George W. Steele
Pages 212-221 |
1984 |
Management Implications of an Adult Female Alligator Telemetry Study From June 1981 to June 1982, a radio-telemetry study was conducted on 9 adult (≥1.8 m) female alligators (Alligator mississippiensis) within a cypress (Taxodium distichum) lake in northwestern Louisiana. Minimum home range size varied from 0.8 to 256 ha (x = 56 ha) while average daily distance traveled varied from 2.3 to 238 m (x =20 m).
Pages 222-227 |
1984 |
Nesting Biology of a Resident Flock of Canada Geese Productivity, nesting biology, and gosling survival of a resident flock of Canada geese (Branta canadensis) were studied in southeastern Alabama and southwestern Georgia from 1977 to 1982. A total of 323 nests contained 1,631 eggs. The nesting season usually began in late February and ended in early June. Yearly nest success varied from 27% to 64%. Flooding resulted in the destruction of 35% of total nests and was ranked as the major cause of nest failure. Nest success on artificial nest structures and beaver (Castor canadensis) lodges was higher than on islands and the shoreline. Daniel L. Combs, Brent Ortego, JamesE. Kennamer
Pages 228-238 |
1984 |
Hazards to Birds and Mammals Following Nifluridide Baiting for Controlling Fire Ants Hazards to birds and mammals were evaluated following the aerial application of 0.75% nifluridide (EL-468) bait for controlling imported red fire ants (Solenopsis invicta). Birds were recorded on 12 transects (6 treated and 6 control) pre- and posttreatment. Small mammal abundance was estimated by live trapping 6 plots (3 treated and 3 control) pre- and posttreatment. Bait disappearance rates were measured for 3 different densities of red fire ant mounds. Overall, more birds and small mammals were counted posttreatment than pretreatment. George H. Matschke, Allen R. Stickley, Steve P. Christman, Gerald D. Lindsey, Robert Cochrane
Pages 239-255 |
1984 |
Wildlife Complaints and Their Resolutions in Maryland Wildlife complaints received by the Maryland Forest, Park and Wildlife Service from a 5-county study area of Maryland were evaluated to improve Maryland's wildlife complaint program. Data collected included type of wildlife causing complaint, type of damage or problem, method used to resolve complaint, and response of complainant to resolution of problem. Raccoons (Procyon lotor) caused the most complaints (24.9%) and 5 of the total 16 wildlife groups caused 68.4% of the complaints. Fifty-seven percent of the complaints involved houses, yards, gardens, or crops. L. Douglas Hotton, Janet S. McKegg
Pages 256-265 |
1984 |
Hunter Access to Private Lands in Piedmont, Virginia This study presents baseline information on the accessibility of private lands in the southern Piedmont of Virginia for hunting, fishing, and trapping. A questionnaire was mailed to 1,525 landowners in 4 rural counties. The typical respondent from the 973 analyzed questionnaires was a 55-year-old male who owned between 4.0 and 8.1ha. Land was posted by 53% of the landowners, yet only 10% totally prohibited hunting. Family members, friends, and local residents were more likely to be granted permission to hunt or fish than were outsiders. Peter T. Bromley, Thomas G. Hauser, Jr.
Pages 266-271 |
1984 |
Bobwhite Wing and Gizzard Fat as Predictors of Body Fat Forty bobwhites (Colinus virginianus) were collected in late winter of 2 years from a variety of habitats in northwestern Texas to evaluate the use of wing fat and gizzard fat as predictors of body fat. No differences were found in body fat between sexes or between years. Regression analyses revealed that the best predictor of body fat was wing fat, which was related to body fat in an exponential, rather than linear, fashion. A logarithmic model (Y = e-0.0 6 + 0.17X, R2 = 0.68, P < 0.0001) best described the observed curvilinear relationship between body fat (g) and wing fat (%). Robert J. Warren, Bradley J. Gruver, Fred S. Guthery
Pages 272-277 |
1984 |
Chase Flights as an Index to Nest Density in Mottled Ducks Waterfowl nest searches are labor intensive and expensive. Development of a method to estimate number of nests without conducting nest searches would be advantageous. Mottled duck (Anas fulvigula maculosa) chase flights were compared with number of nest initiations to determine if a quantifiable relationship exists. Frequency of chase flights over an area was independent of the number of nests found in the area (P > 0.10), precluding use of chase flight frequency to estimate nest density. Chase flight frequency does provide an index of breeding chronology. Osborn E. Baker, Paul McKenzie, Phillip J. Zwank
Pages 278-284 |
1984 |
Dietary Phosphorus Requirements of Deer For more than 25 years, numerous authors of reports and texts have repeatedly published that 0.56% and 0.25% phosphorus are optimum and minimum dietary levels required by white-tailed deer (Odocoileus virginianus). Scrutiny of the literature reveals that data do not sufficiently support these statements. Original statements were based on the performance of 1 deer. Dietary levels of other nutrients were also low. Minimum dietary levels of phosphorus required by deer are not known. Obviously, authors have cited these results without carefully reading the literature.
Pages 285-290 |
1984 |
Selenium-Induced Changes in Fish Populations of a Heated Reservoir High selenium levels and changes in abundance and size distribution of fishes were discovered after reports of fish dying in Martin Creek Reservoir, Texas. The reservoir functions as a cooling source for a coal-fueled power plant owned by Texas Utilities Generating Co. Analyses of fish muscle tissue by the Texas Department of Health showed selenium concentrations ranging from 2.0 to 9.1 mg/kg. Cove rotenone sampling by the Texas Parks and Wildlife Department indicated biomass of fishes, except common carp, Cyprinus carpio, was reduced 72%. Gary P. Garrett, Charles R. Inman
Pages 291-301 |
1984 |
Yellow perch, Perca flavescens, and largemouth bass, Micropterus salmoides, segregated both spatially and by food choice throughout most of their first year. During the summer, largemouth bass inhabitated mainly vegetated areas and soft silt and sandy areas, whereas yellow perch preferred soft silt, sand, and hard clay areas. Both species shared a common invertebrate diet until mid-summer. Largemouth bass consumed small fishes late in the growing season while yellow perch continued to consume only invertebrates.
Pages 302-312 |
1984 |
Food Items of Grass Carp, American Coots, and Ring-necked Ducks from a Central Florida Lake Examination of food items of 84 grass carp (Ctenopharyngodon idella), 73 American coots (Fulica americana), and 31 ring-necked ducks (Aythya collaris) from Lake Conway, Florida, revealed that all 3 species fed heavily on hydrilla (Hydrilla verticillata), Illinois pondweed (Potamogeton illinoensis), and nitella (Nitella furcata). Introduction of grass carp to control aquatic vegetation may affect waterfowl distribution and abundance if these macrophyte species are present. Scott Hardin, Roy Land, Mike Spelman, Gary Morse
Pages 313-318 |
1984 |
Hydrilla Consumption by Triploid Grass Carp Triploid grass carp (Ctenopharyngodon idella, 2n = 72) were found to consume an average of 127 ± 17% of their body weight in fresh hydrilla (Hydrilla verticillata) per day. Experimental fish were 199 ± 27 g at the outset, and during the 51-day trial, the 6 fish gained an average of 3.3 ± 0.5 g/ day. Total lengths increased from 243 ± 10 mm to 301 ± 15 mm (1.1 ± 0.2 mm/day) during this time. These values are equivalent to results reported by other researchers for diploid grass carp and are 3 to 4 times greater than for triploid hybrid grass carp (C. Robert J. Wattendorf, Robert S. Anderson
Pages 319-326 |
1984 |
Adult striped bass (Morone saxatilis) ranging in size from 483 to 940 mm TL in a west central Arkansas reservoir (3,000 ha) fed predominantly on gizzard shad (Dorosoma cepedianum) and threadfin shad (D. petenense) throughout a 2-year study. Heavy feeding on threadfin shad occurred 1 winter due to colder than normal water temperatures which rendered threadfin shad sluggish and more susceptible to predation. Other species of fish and invertebrates comprised only a minor portion of food items regardless of time of year. Stephen P. Filipek, William H. Tommey
Pages 327-334 |
1984 |
Aging of Three Species of Florida Catfish Utilizing Three Pectoral Spine Sites and Otoliths Twenty-one brown bullhead (Ictalurus nebulosus), 25 channel catfish (I. punctatus) and 25 white catfish (I. catus) collected by fish trap were aged by counting annuli from the articulating process (AP), basal recess (BR) and mid-spine (MS) sections of pectoral spines. Five large channel catfish collected from hoop nets were also aged using spine techniques. Attempts were also made to age catfish by counting opaque bands or checks from whole sagittal otoliths and otolith longitudinal and cross sections. Annuli were visible in all pectoral spine sections. J. E. Crumpton, M. M. Hale, D. J. Renfro
Pages 335-341 |
1984 |
An Inexpensive Low Voltage Electrofishing Device for Collecting Catfish A low voltage electrofishing device, commonly called a “monkey rig” in Florida, was used to collect catfish for a tagging study on the St. Johns River, Florida. In 40 fishing trips, 3,234 catfish were captured using the “monkey rig”. This inexpensive device was selective for catfish species only. The 16-V to 18-V alternating current agitated the catfish to the surface but fish never exhibited a complete state of tetanus. Marty M. Hale, Joe E. Crumpton, Dennis J. Renfro
Pages 342-345 |
1984 |
A study was conducted in 9 striped bass (Morone saxatilis), 7 Florida largemouth bass (Micropterus salmoides floridanus), and 6 smallmouth bass (M. dolomieui) rearing ponds to evaluate the effects of various traditional and experimental fertilization regimes utilizing both organic and inorganic fertilizers. No significant differences were found in water quality, zooplankton populations, or fingerling production among any of the fertilization treatments. All treatments produced adequate zooplankton densities for fry survival and growth without detrimental effects on water quality.
Pages 346-368 |
1984 |
Reproductive Success of Channel Catfish in a Farm Situation Three thousand pair of hand selected, 3-year-old channel catfish (Ictalurus punctatus) were stocked in 4 ponds used for brood production in Humphreys County, Mississippi. From 1 May to 13 July 1981, data were obtained on spawning in the ponds. As the water temperature increased, so did the number of spawns up to a maximum of 498 on 30 May. Total spawns and spawning rate were 603 (86% )-pond 9; 523 (75%) -pond 10; 440 (55% )-pond 11; 550 (69% )-pond 12. William W. Stephens, Larry W. Dorman
Pages 369-373 |
1984 |
Hemoglobin patterns were identified by electrophoresis for channel catfish, Ictalurus punctatus; blue catfish, I. furcatus; white catfish, I. catus; brown bullhead, I. nebulosus; and (female x male) blue x channel, channel x blue, white x blue and channel x white hybrids. Hemoglobin patterns of each species were different with channel catfish having 11 bands; blue catfish, 8; white catfish, 5; and brown bullheads having 3 different patterns of 6, 10, and 11 bands. All hybrids except channel x white (10 bands) had 11 bands. Peter W. Taylor, W. A. Rogers, Rex A. Dunham
Pages 374-382 |
1984 |
Laboratory and field growth trials were conducted to determine the feasibility of using blue crab (Callinectes sapidus) or Atlantic herring (Clupea harenous) cannery waste as dietary protein substitutes in pelleted rainbow trout (Salmo gairdneri) feeds. In lab and field experiments, triplicate groups of trout were fed 3 nutritionally complete diets: (1) a commercial diet (38.8% protein); or 1 of 2 experimental diets containing either (2) blue crab scrap (35.9% protein) or (3) herring byproducts (33.9% protein). Louis A. Helfrich, Diana L. Weigmann, Jan C. Dean
Pages 383-394 |
1984 |
Invertebrate Faunas and Crawfish Food Habits in Louisiana Crawfish Ponds Aquatic invertebrate fauna and crawfish (Procambarus spp.) stomachs were sampled monthly (October 1981-April 1982) in a crawfish pond dominated by rice (Oryza sativa). Invertebrate fauna only was sampled during the same period in a nearby pond dominated by alligator weed (Alternanthera philoxeroides), a perennial, semi-aquatic forb. Macroinvertebrates were affected by the gradual disappearance of rice stubble in the rice pond.
Pages 395-406 |
1984 |
Freshwater Aquaculture in Florida: Highlights of a 1983 Survey The freshwater aquaculture industry in Florida was surveyed by mail in 1983. Of the aquaculturists who responded, 74% raised ornamental fish; 14% raised food, bait, and/or gamefish; 9% raised alligators; and another 3% raised fish, but did not indicate the species, Respondents to the survey had 7,094 ponds that covered 264 ha with an annual production value of $6,775,719.50. Using survey data and assuming there were 300 aquaculture firms in the state, it was estimated that there were 27,300 ponds covering 1,093 ha, with an annual production value of $37,642,884.
Pages 407-412 |
1984 |
Growth and Food Habits of Young of Year Walleye X Sauger Hybrids in Cherokee Reservoir, Tennessee In May 1982, 31,600 sauger (Stizostedion canadense) male x walleye (S. vitreum) female hybrids and 17,200 fingerlings from the reciprocal cross were stocked into Cherokee Reservoir, Tennessee, in an attempt to reestablish a fishery for large percids where the 2 parental species have been extirpated. Of the 217 fish that were recaptured, 184 (85%) contained food. Gizzard shad (Dorosoma cepedianum) and threadfin shad (D. petenense) were the primary prey species and were selected over other forage species. Michael Humphreys, J. Larry Wilson, Douglas C. Peterson
Pages 413-420 |
1984 |
Survival, growth, reproductive potential, and catchability of parental, F1 hybrid, and trihybrid sunfishes were evaluated in hatchery ponds for 28 months. The longear sunfish o x redbreast sunfish o F1 hybrid, its reciprocal, and these F1 hybrids outcrossed with the reader sunfish (i.e., trihybrids) were produced artificially, but natural hybridization in ponds was erratic. Survival of all fish types was good, and growth of F1 hybrids and trihybrids was greater than that of parentals. Only 1 F1 hybrid (redbreast sunfish o x longear sunfish o) exhibited a reduced reproductive potential.
Pages 421-435 |
1984 |
Development and Management of an Urban Fishery with Hybrid Striped Bass Striped bass (Morone saxatilis) x white bass (M. chrysops) hybrids were introduced into Lake Osborne, Florida, annually from 1975 to 1983 as a shad control agent and sport fish for an urban fishery. Stocking rates ranged from 21 to 337 fish per hectare. Peak season creel surveys have documented a substantial hybrid fishery in terms of harvest and effort. Creel censuses indicated 21%, 8%, 2%, and 6% stocking rate returns, respectively, during 4 creel periods from 1980 to 1984 on young-of-year fish.
Pages 436-445 |
1984 |
Survival of Hybrid Striped Bass in Central Florida Otolith aging was utilized to evaluate age structure and survival of hybrid striped bass stocked in 5 central Florida lakes. Age VI and age VII hybrids collected during the study represent the oldest yet collected in Florida. High survival rates of ages 0, I, and II were observed in all lakes. Lakes stocked for more than 4 years had low survival of hybrids older than age II. It is possible that adding hybrids in a lake on an annual basis may lead to overstocking. Alternative stocking practices are being investigated.
Pages 446-449 |
1984 |
Establishment of a Hybrid Morone Fishery in the Apalachicola River, Florida Hybrids produced by crossing female striped bass (Morone saxatilis) with male white bass (M. chrysops) have been stocked annually in Lake Seminole, Georgia and Florida, since 1975. Fish migrating from this reservoir and subsequent stockings directly into the Apalachicola River in Florida have resulted in a very popular hybrid Morone fishery. Spring creel surveys conducted from 1979 to 1983 documented improved angler success and major increases in fishing effort. More than 15,500 hybrids weighing 28,800 kg were harvested.
Pages 450-454 |
1984 |
Suspected Natural Hybridization of Striped Bass and White Bass in Two Arkansas Reservoirs In 1981, hybrid striped bass (Morone saxatilis x Morone chrysops) appeared in Lake Maumelle and Beaver Lake, Arkansas, both which had only been stocked with striped bass (Morone saxatilis). Therefore, it was suspected that natural hybridization might have occurred between striped bass and native populations of white bass (Morone chrysops). Scale sample analysis revealed that the hybrid striped bass collected from Lake Maumelle were from 1978 and 1979 year classes. Hybrids from the 1979 year class were collected from Beaver Lake. Tommie Crawford, Mike Freeze, Ralph Fourt, Scott Henderson, Gerald O'Bryan, David Philipp
Pages 455-469 |
1984 |