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.
2051 - 2100 of 4522 articles | 50 per page | page 42
| Article | Year |
|---|---|
The Helinet: A Device For Capturing Prairie Chickens and Ring-Necked Pheasants A net 2.3 m X 2.4 m, made of number 248 knotless nylon with 2.5 cm mesh and attached to the skids of a Bell G-4A or Hiller helicopter, has proven effective in capturing Attwater's prairie chickens (Tympanuchus cupido) and ring necked pheasants (Phasianus colchicus). More than 300 prairie chickens have been captured using the helinet technique at an estimated cost of $37.80 per bird. Death losses, attributable to the helinet capture techniques, were less than 4%. A total of 313 pheasants was captured at a cost of $37.39 per bird, with no known death losses.
Pages 92-96 |
1981 |
Nesting Effort and Territorial Male Birds in a Breeding Bird Community Number of active nests was compared with number of territories of singing male birds determined by spot mapping for 16 common species in north Louisiana. The number of active nests per number of territories ranged from 0 to 2.3. Carolina wrens (Thryothorus ludovicianus), white-eyed vireos (Vireo griseus), yellow-billed cuckoos (Coccyzus americanus), northern orioles (Icterus galbula), orchard orioles (Icterus spurius), common grackles (Quiscalus quiscula), eastern meadowlarks (Sturnella magna), and bobwhites (Colirr.us virginianus) had less than 0.6 nests per territory. James G. Dickson, J. W. Goertz
Pages 97-100 |
1981 |
Eastern Bluebird Production in Nesting Boxes in Pine Plantations Seventy-four nest attempts by the eastern bluebird (Sialia sialis) were made from 1977 - 80 in nesting boxes in 2 loblolly pine (Pinus taeda) plantations, age 1 - 4 years in east-central Mississippi. Of the 303 bluebird eggs laid, 245 (81%) hatched and 232 (77%) produced fledglings. Mean number of young fledged per successful nest averaged 3.87, with an average clutch size of 4.42. The largest number of nest attempts, eggs laid, and number fledged occurred at plantation age 3 years.
Pages 101-106 |
1981 |
Behavioral Patterns of Bald Eagles Utilized in an Experimental Hacking Project A bald eagle (Haliaeetus leucocephalus) hacking program was initiated at the Tennessee Valley Authority's (TVA) Land Between The Lakes during the summer of 1980. This program was a cooperative effort between TVA and the Tennessee Wildlife Resources Agency to reintroduce the bald eagle as a breeding species in Tennessee. Two eaglets, obtained from wild nests in Wisconsin, were placed in a manmade nest atop a 12.7 m (40-foot) tower on June 28. They were fed and monitored from a nearby observation tower until released on August 10. Richard L. Lowe, R. L. Altman, R. M. Hatcher
Pages 107-119 |
1981 |
Foods and Habitat of the Gopher Tortoise in Southwestern Georgia Broad-leaved grasses (Poaceae) were staple foods of gopher tortoises (Gopherus polyphemus), while wiregrass (Aristida stricta) was taken mainly in early spring and late fall. These plants were relatively high in fiber and were partially replaced in the diet by more nutritious forbs when available. Wild legumes (Fabaceae), which were very high in protein, were used extensively, especially by juveniles. Individuals near agricultural areas fed heavily on Florida pussley (Richardia scabra), and poor-Joe (Diodia teres) was taken frequently in areas of past soil disturbance. James A. Garner, J. L. Landers
Pages 120-134 |
1981 |
Response of Indigo Snakes to Gassing of Their Dens The effects of gassing on the eastern indigo snake (Drymarchon corais couperi), an inhabitant of burrows of the gopher tortoise (Gopherus polyphemus) was tested in southern Georgia. Gassing is frequently practiced by rattlesnake hunters to drive snakes from tortoise burrows. Six adult indigo snakes equipped with radio transmitters had established typical winter behavior patterns before 3 of them were gassed 19 December 1979 with 60 ml of unleaded gasoline. The gassed snakes died between 12 and 34 days later. The ungassed snakes were recovered in excellent condition during January.
Pages 135-138 |
1981 |
Staining Techniques to Facilitate Counts of Abomasal Parasites The Abomasal Parasite Count (APC) provides an effective yet timeconsuming technique for assessing parasite burdens in southeast white-tailed deer (OdocoUeus virginianus) herds. Staining techniques utilizing Rose Bengal to facilitate parasite identification are described. Total water hardness of 74 mg/l or greater is essential to the proper application of these staining techniques. A concentration of 1% Rose Bengal stain yields a considerable savings of laboratory time. Expense of the technique is minimal at a cost of 4 cents per sample.
Pages 139-141 |
1981 |
Hunting Season Movements of White-Tailed Deer on Fort Sill Military Reservation, Oklahoma Low hunter success in conjunction with a high population index prompted a 2-year study to test the hypothesis that white-tailed deer (Odocoileus virginianus) were moving to the adjacent refuge during hunting season. Of 5 males and 14 females, only 2 females used the refuge in a manner inconsistent with preseason use. Daytime use areas increased during hunting season. Daytime use area of bucks did not differ from that of does, but a greater percentage of bucks made excursions 3 - 9 km from their daytime use area. Brian K. Pilcher, G. E. Warmpler
Pages 142-148 |
1981 |
Movements and Activity Patterns of Female White-Tailed Deer During Rut Ten female white-tailed deer (Odocoileus virginianus) were live-trapped, radio-tagged, released, and monitored for a 5-month period (Nov. 1975 - Mar. 1976) on the Fred T. Stimpson Wildlife Sanctuary in Clarke County Alabama. Study animals were monitored hourly during 74 individual diel periods before, during, and after the pealt of rut. Additional random daily monitoring (2512 locations) was also conducted. Minimum home ranges did not differ statistically among the pre-rut, rut, and post-rut study periods.
Pages 149-166 |
1981 |
Characteristics and Opinions of Mississippi Deer Hunters Using Public Areas Characteristics and opinions of deer hunters using the Choctaw and Tallahala Wildlife Management Areas (WMA) were determined from a mail questionnaire. Respondents were typically white, middle-class males. Characteristics of education, occupation and community size of residence were significantly different (P < 0.05) between the WMAs. The quality of hunting and current management practices, with the exception of hunting with dogs, were favorably rated on both WMAs. Significantly more respondents from the Tallahala WMA (66%) than the Choctaw WMA (42%) favored hunting with dogs. Richard W. Whiteside, D. C. Guynn, Jr., H. A. Jacobson
Pages 167-173 |
1981 |
Habitat Characteristics of Forest Clearings Created by Picloram Herbicides and Clearcutting Twenty-six habitat characteristics were quantified on untreated, clearcut, and picloram-treated plots on north-facing, south-facing, and ridgetop sites in eastern Kentucky. Twenty-one habitat characteristics differed among treatments and 13 characteristics differed among aspects. Herbicide plots were intermediate between untreated and clearcut plots in 15 characteristics. Hard and some soft mast species and browse species were adversely affected by increasing concentrations of herbicide, but snag and log abundance were increased by herbicide application. William C. Mccomb, R. L. Rumsey
Pages 174-184 |
1981 |
Understory Forage Production Following Thinning in Southern Appalachian Cove Hardwoods Understory response was studied for 4 years following thinning in 44 cove hardwood stands in the mountains of western North Carolina and northern Georgia. Stands were in the pole and small-sawtimber stages, raning in age from 20 to 56 years. Understory vegetation increased from 334 kg/ha before thinning to 574 kg/ha the 1st year after thinning. Peak production of 777 kg/ha was reached in the 3rd year and began to decline slightly by the 4th year. Implications for deer, grouse and songbird management are discussed.
Pages 185-196 |
1981 |
Sawtooth Oak Planting Trials with Site Preparation Data are presented on the survival and growth response of planted 1-0 sawtooth oak seedlings to 4 site preparation treatments on loamy and sandy soils following clearcutting of the residual forest stands. The 4 site treatments were: (1) control, (2) burn, (3) chopping with a Marden chopper, and (4) KG blading followed by disking. In early April 1975, 12 sawtooth oaks were planted in each treatment plot.
Pages 197-200 |
1981 |
Effect of Burn Date on Regrowth Rate of Scirpus Olneyi and Spartina Patens Scirpus olneyi and Spanina patens were grown in mixed stands in containers (surlace area: 900 cm2) and burned during the fall and winter on 6 dates (Burn 1, 8 October; Burn 2, 23 October; Burn 3, 8 December; Burn 4, 20 December; Burn 5, 6 February; and Burn 6, 20 February). Plants in 18 separate containers were burned on leach date and 18 containers were left unburned as a control. Biweekly counts were made of the number of culms of each species per container from 5 October to 18 April.
Pages 201-210 |
1981 |
Estimating Carcass Fat Levels in Ruffed Grouse From Wing Fat A technique for estimation of carcass fat levels in ruffed grouse (Bonasa umbellus) from wing fat levels is evaluated. The utility of this technique was investigated because many :Btate wildlife agencies annually collect grouse wings for purposes of age determination and hence wings are readily available. Mean wing fat (percent ether extract) levels were not significantly different than carcass fat levels in grouse collected in fall and winter. Significant differences were found between wing and carcass fat levels in spring (P < 0.10) and summer (P < 0.01) collected birds. Gary W. Norman, R. L. Kirkpatrick
Pages 211-215 |
1981 |
Foods of Ruffed Grouse From Three Locations in the Southern Appalachian Mountains An analysis was made of 574 ruffed grouse (Bonasa umbellus) crops and 157 gizzards collected during fall and winter from 3 locations in the Southern Appalachian Mountains. Grouse crops from the northernmost localities contained more woody twigs and attached buds than grouse crops from locations farther south, and crops from southernmost localities contained more leaves of woody plants than crops from more northern areas. Monte E. Seehorn, R. F. Harlow, M. T. Mengak
Pages 216-224 |
1981 |
A Partial Nutritional Analysis of Wild Turkey Hen Diets In Springtime A partial nutritional analysis of the springtime diets in 1975 and 1976 of 40 Rio Grande turkey (Meleagris gaUopauo intermedia) hens from southern Texas suggested they fulfilled their nutritional needs by a progressive shift in food use from forb leaves to forb fruits and seeds to animal matter to grass seeds during 5 equally-time-spaced sampling dates. It was apparent in this area that the approximately 14% protein, 2% calcium, and 0.75% phosphorus requirements for breeding turkeys could only be met by a diet composed primarily of animal matter. Oliver H. Pattee, S. L. Beasom
Pages 225-232 |
1981 |
Stocking Eastern Turkey Poults with Surrogate Rio Grande Hens Within 12 hours posthatching, poults from captive-reared wild eastern turkeys (Meleagris gallopavo silvestris) were placed under broody domestic bronze turkey hens to imprint the poults (Gore and Synatske 1978). As many as 15 eastern poults were placed under each broody hen at night without disturbing the hens. After 1 week, surviving poults were removed and replaced with newly hatched poults. The week-old eastern poults were then placed with wild-trapped Rio Grande turkey hens (M g. intermedia). Horace G. Gore, J. R. Cain, D. R. Synatzske, W. L. Arnold
Pages 233-238 |
1981 |
Diets of Sympatric Bobwhite and Scaled Quail in Oklahoma Fall-winter diets of sympatric bobwhite (Colinus uirginianus) and scaled quail (Callipepla squamata) in southwestern Oklahoma were compared during 1978 80 using analysis of crop contents. High overlap was present between the 2 species for 1978 - 79 (Overlap coefficient C = 0.65) and 1979 - 80 (C = 0.88). Staple items included seeds of wheat, mesquite (Prosopis glandulosa), broomweed (Xanthocephalum dracunculoides), buffalobur (Solanum rostratum), and flax (Linum sp.).
Pages 239-248 |
1981 |
Introduction of the Ring-Necked Pheasant to the Texas Gulf Coast A total.of 967 wild-trapped pheasants (Phasianus colchicus torquatus) was released over a 7-year period (1964 - 71) in the Sloan-Trull study area of Matagorda County, Texas. On the Maxwell-Boyt study area in Liberty County, Texas, a total of ~,975 pen-reared pheasants (P. c. torquatus X P. c. talischensis) were released during a 5-year period (1968 - 73). The success of these releases was evaluated by measuring dispersal, brood production and survival.
Pages 249-255 |
1981 |
Effectiveness of Kill-Type Traps Versus Leg-Hold Traps Utilizing Dirt-Hole Sets An evaluation was conducted to compare the effectiveness and humaneness of kill-type traps versus leg-hold traps for land sets. Data were obtained for 448 trap nights which resulted in the capture of 49 animals in leg-holds and 14 in conibears. The leg-hold trap demonstrated a significantly higher capture rate for total animals (P < 0.01), opossum (Didelphis marsupialis) (P < 0.01), and raccoons (Procyon lotor) (P < 0.05). Conibears generally did not kill captured animals instantly and only 64.3% of the animals were captured by the neck or head.
Pages 256-260 |
1981 |
A phone questionnaire was used to determine the extent furbearer population surveys are used in the Southeast, describe the procedures used, identify problems and future directions, and quantitatively rank important considerations in using scent-station techniques based on an opinion survey. Eleven of 16 states conduct annual statewide surveys of furbearer population trends (10 of 11 were scent-station surveys) at an average cost of $26,095. Kenneth G. Johnson, M. R. Pelton
Pages 261-272 |
1981 |
Siren-Elicited Responses of Coyotes in Western Kentucky and Tennessee Three hundred eighty-eight stations were surveyed for siren-elicited responses from coyotes (Canis latrans) and dogs (Canis familaris). Responses were received from coyotes at 15 of 388 station soundings (3.9%) whereas dogs were heard at 14 of 388 station soundings (3.6%). November had the highest rate for coyotes (5.8%) and February had the highest rate for dogs (5.3%).
Pages 273-280 |
1981 |
Evaluation of Specific Scent Station Variables in Northcentral Louisiana In an attempt to determine a more effective means of utilizing scent station data to evaluate furbearer population trends, 3 scent types, 2 tracking surfaces and 3 habitat types were analyzed in northcentral Louisiana. Observations at 775 stations on 2 successive days during the fall of 1979, summer of 1980 and fall of 1980, resulted in 574 visits by 13 different groups of mammals. Bobcat (Felis rufus) urine produced the highest visitation rates for coyotes (Canis latrans) when compared to fatty acid scent and rhodium (P < 0.05). David W. Morrison, R. M. Edmunds, G. Linscombe, J. W. Goertz
Pages 281-291 |
1981 |
Texas' Antlerless Deer Hunting System: Methods and Effectiveness Texas initiated antlerless white-tailed deer (Odocoileus virginianus) hunting in 1953. The harvest of antlerless deer is regulated by permits issued to landowners, who distribute the permits to hunters utilizing their property. Since the inception of this program, approximately 1.4 million antlerless deer have been harvested in Texas. In 1979, 290,120 antlerless deer permits where issued to 25,201 landowners, resulting in a harvest of 89,225 antlerless deer. The harvest comprised 5% of the adult female segment of the population.
Pages 292-296 |
1981 |
Evaluation of the Striped Bass X White Bass Hybrid for Controlling Stunted Bluegills We studied fish populations in four lakes in southwestern Oklahoma before and after stocking striped bass (Morone saxatilis) X white bass (M. chrysops) hybrids to determine if the population structure changed as a result of predation by the hybrids. Two lakes were stocked with hybrid fmgerlings at 45 fish/ha in fall 1979 and again with fry at 120 fishlha in spring 1980. The other two lakes (the controls) were not stocked Although growth of hybrid fmgerlings was good, survival was poor. Mortality was greatest for fingerlings less than 150 mm in total length at the time of stocking.
Pages 297-310 |
1981 |
Of 80,000 hybrid striped bass (Marone chrysops X Marone saxatilis) stocked in June 1980 in Cherokee Reservoir, Tennessee, only 206 were recaptured. They were stocked at a mean total length of 4.5 cm and averaged 21.5 cm after 7 months of growth. After stocking, hybrids consumed mostly Crustacea, with Chironomidae being the primary food source in fish 5.0 to 12.0 cm in length. Fish first appeared in the diet when hybrids were 5.0 cm and became more abundant as the hybrids grew larger. Condition values (K) for hybrids ranged from 0.9 to 1.2.
Pages 311-316 |
1981 |
Diet Overlap of Striped Bass X White Bass Hybrids and Largemouth Bass in Sooner Lake, Oklahoma In 1980 and 1981, stomach contents were removed from 224 striped bass (Morone saxatilis) X white bass (M. chrysops) hybrids and 149 largemouth bass (Mu:ropterus salmoides) collected from Sooner Lake, Oklahoma. Relative abundances of forage fishes were also estimated and food electivity and overlap of diet were determined seasonally. Gizzard shad (Dorosoma cepedianum) was the most important food of all hybrids except those <301-mm; insects and inland silversides (Menidia beryllina) were seasonally important. Eugene R. Gilliland, M. D. Clady
Pages 317-330 |
1981 |
Age, Growth and Mortality of Gray Snapper Collected from Florida Waters Otoliths and scales of gray snapper, Lutjanus griseus, sampled from the Florida headboat fishery were examined to see if they could be used to age the species. Scales were not useful, but sectioned otoliths proved to be excellent for determining age and growth. Rings could be identified and counted on 91% of all otoliths examined, and measurements could be made on 86%. The oldest fish encountered was 21 years; 775 mm TL. Back-calculated lengths at annulus formation ranged from 95 mm for age 1 to 772 mm for age 19. Charles S. Manooch, III, R. H. Matheson
Pages 331-344 |
1981 |
Age and Growth of Spotted Seatrout and Red Snapper in Alabama Total length-scale radius relationship equations and total length-weight equations were determined for spotted seatrout and red snapper in Alabama. Age was determined from scale readings. Rosa Lee's phenomenon was observed Length frequency curves indicated that age group III+ (425 mm) represented the largest year class examined among spotted seatrout and age II+ (239 mm) represented the largest year class examined among red snapper.
Pages 345-354 |
1981 |
Helminth Parasites of American Eels From Brackish Water Two hundred fourteen of 218 American eel, AnguiUa rostrata, from brackish portions of Cooper River, South Carolina, were infected with 1 or more of 22 helminth species representing 4 classes: Trematoda, Cestoda, Nematoda and Acanthocephala. Larval nematodes (Contracaecum sp.) predominated, infecting 95% of eels examined. Seasonal, size- and age-related variations in levels of parasitism by trematodes and cestodes are discussed. Six new host and 7 new locality records are established.
Pages 355-364 |
1981 |
Seasonal and Areal Abundance of Gulf Menhaden in Louisiana Estuaries Otter trawl data from the Louisiana Department of Wildlife and Fisheries' shrimp monitoring program from 1966 through 1979 were used to determine seasonal and areal abundance of gulf menhaden in five areas along the Louisiana coast. Catches were highest in western Louisiana. Overall peaks in late winter/spring and lows in late summer/fall of catches coincide with the influx of larvae from offshore and emigration of juveniles to the Gulf, respectively.
Pages 365-371 |
1981 |
Fish Utilization of Midwater and Bottom Fish Attractors in a Fertilized Community Fishing Lake Fish associated with midwater fish attractors, bottom fish attractors, and open water devoid of cover were sampled by electrofishing at Madison County Public Fishing Lake. Both types of attractors concentrated harvestable-size largemouth bass Micropterus salmoides better than open-water areas devoid of cover. Midwater attractors concentrated harvestable-size largemouth bass as well as bottom attractors.
Pages 372-375 |
1981 |
Results of a Partial Renovation of a Public Fishing Lake In September 1976, 1/3 of Lake Orange was treated with rotenone to reduce an overabundant black crappie (Pomoxis nigromaculatus) population. Following the treatment 5,232.4 kg of dead fish were recovered, of which 2,050.0 kg were black crappie. Impact of the treatment on the fishery was monitored by a 2-year pre-treatment and a 2-year post-treatment creel survey. Following the treatment, the number of black crappie harvested decreased but average size increased.
Pages 376-382 |
1981 |
Hydrilla Control and Vegetation Response with Multiple Dewaterings An experimental multiple dewatering plan designed to control Hydrilla verticillata and improve sportftsh habitat was implemented on Fox Lake in 1979 and 1980. Hydrilla above the hydrosoil and turions were eliminated while relative abundance of tubers decreased from 19.44 to 1.79 per m2 by termination of the project. The depth of organic sediments was reduced by 29%, 36%, and 47% for the 30, 60, and 90 cm contour intervals respectively. Expansion of native vegetation was documented by a 40% areal increase in Vallisneria americana and basin-wide germination of Typha latifolia. Samuel P. McKinney, W. S. Coleman
Pages 383-393 |
1981 |
Drawdown Response of a Hypereutrophic Florida Lake A drawdown of Lake Carlton was conducted to evaluate complete dewatering as a method for rehabilitation of a severely eutrophic lake. The water level was lowered 4.1 m exposing 80.7% of the bottom (29.4% sand and 51.3% organic sediments). Substantial germination and growth of terrestrial and aquatic vegetation occurred on the exposed bottom. Following refill a layer of consolidated sediments persisted over most of the area where organic sediments had been exposed. Most new vegetation was established at too great a water depth and died. William E. Johnson, D. A. Dobbins, D. E. Holcomb
Pages 394-407 |
1981 |
Game Fish By-Catch in Commercially Fished Hoop Nets in the St. Johns River, Florida Incidental game fish capture and mortality in St. Johns River hoop nets is a major source of controversy between sport and commerical interests. The controversy is most severe in that portion of the river from Lake George southward. Project personnel observed 574 hoop nets that had been fished 3,896 hoop net-days over a 12-month period. Four species of catfish comprised 84.8% of the total harvest while the game fish by-catch represented approximately 13%. Harvestable size game fish (that size game fish retained by the sport fisherman) comprised 1.4% of the total harvest. Marty M. Hale, J. E.Crumpton, W. F. Godwin
Pages 408-415 |
1981 |
Relationships of White Crappie Populations to Largemouth Bass and Bluegill During summer, 1976, fish population data were collected by gillnetting, electrofishing, and seining from 30 flood prevention lakes that maintained coexisting populations of white crappie (Pomoxis annularis), largemouth bass (Micropterus salmoides), and bluegill (Lepomis macrochirus). Charles E. Cichra, R. L. Noble, B. W. Farquhar
Pages 416-423 |
1981 |
Results of a 45-cm (18-in) Minimum Size Regulation on Largemouth Bass Populations A 45-cm (18-in) minimum size limit was placed on largemouth bass (Micropterus salmoides) in January 1978 in 4 North Carolina reservoirs. Annual spring electrofishing samples were conducted to obtain size distribution information on each lake, length-weight information on 2 lakes, and largemouth bass population estimates on one of the study lakes. After a 4-year investigation, the proportion of quality size bass in the stock size distribution of 2 lakes increased. Scott L. Van Horn, W. R. Chapman, F. A. Harris
Pages 424-429 |
1981 |
Population Dynamics of Largemouth Bass in Degray Lake, Arkansas, 1975-1979 Estimates of abundance, production, growth, survival, and mortality of largemouth bass were derived from spring electrofishing samples in the upper, middle, and lower sections of DeGray Lake from 1975 to 1979. Mean population estimates ranged from 86 to 163 bass per hectare; the populations were dominated by bass of ages I and IT (73% to 96%). Population estimates of the 3 coves based on surface area were biased because there were large differences in the ratio of shoreline length to surface area. Population estimates were adjusted to correct for this bias.
Pages 430-437 |
1981 |
Seasonal Biomass of Selected Centrarchids in Degray Lake, Arkansas, 1977-79 Seasonal biomass estimates of largemouth bass (Micropterus salmoides), bluegill (Lepomis macrochirus ), and longear sunfish (L. megalotis ) were made during 3 growing seasons (1977 - 79) by cove rotenone sampling in May, June, August and September. Substantial mortality of young-of-the-year (YOY) largemouth bass during late summer suggests that this period was critical in determining year-class strength. Overwinter mortality was 88, 87, and 71%for the 1977-, 1978and 1979-year classes, respectively. Michael R. Dewey, T. E. Moen, H. E. Bryant
Pages 438-442 |
1981 |
Predation on Blue Tilapia by Largemouth Bass, in Experimental Ponds In pond predation studies, 4 total length (TL) groups (152 - 406 mm TL) of Florida largemouth bass (Micropterus salmoides floridaiu.Ls) were each provided 4 length groups (51 - 140 mm TL) of blue tilapia (Tilapia aurea) as forage. Estimated maximum length of tilapia that 38 - 500 mm TL bass can swallow ranged from 36 61% of the bass's total length. Bass <254 mm TL ate tilapia which approximated the maximum estimated length they could swallow. Bass >381 mm TL rarely ate tilapia >27% of their total length. Paul L. Shafland, J. M. Pestrak
Pages 443-448 |
1981 |
Effects of Internal Anchor Tags on Largemouth Bass Growth From 1977 to 1979 largemouth bass (Micropterus salmoides) were collected in spring from Lake Higgins in North Carolina and tagged with Floy FD-67 internal anchor tags. Tagged fish were released back into the lake and a recapture effort was made the next year. During the year following tagging, tagged bass generally achieved a smaller length increment than untagged bass of a comparable size. Weights of tagged bass tended to be less than similar size untagged bass, but only in the 326- to 350-mm size interval was the difference significant (P < 0.05). Fred A. Harris, S. L. Van Horn
Pages 449-452 |
1981 |
The North Carolina Largemouth Bass Catch Survey The North Carolina Largemouth Bass Catch Survey was initiated in 1975 to monitor angling success for largemouth bass (Micropterus salmoides) in the state's waters. The survey relies heavily on the participation of organized bass fishing clubs and reflects primarily tournament fishing results. Individual participants and clubs are asked to maintain catch records for each trip on a fishing log sheet. At the end of each month, the accumulated statistics are summarized by the participant and reported by body of water on preaddressed summary postcards. Scott L. Van Horn, L. J. Birchfield
Pages 453-459 |
1981 |
The Declining Largemouth Bass Fishery in the Ocmulgee River, Georgia The largemouth bass(Micropterus salmoides) fishery in the Ocmulgee River, Georgia was studied to address concerns about overexploitation. A significant decline occurred over time in overall success, fished-for success, and average weight of largemouth bass in the creel. The annual exploitation rate was calculated to be 0.11 and was estimated in the year of low bass harvest. The annual survival rate was calculated to be 0.47. A Kolmogorov-Smirnov two sample test showed a significant decrease in the percent frequency of larger bass in electrofishing samples from fall 1976 to fall 1978. Charles E. Coomer, Jr., D. R. Holder
Pages 460-473 |
1981 |
Chironomid Communities as Indicators of Water Quality Affected by Acid Mine Drainage Water and benthic samples were collected quarterly, May 1980 to May 1981, from 21 sedimentation ponds on the Ollis Creek strip mine in Campbell County, Tennessee. Water samples in general were low in pH and high in sulfate, hardness, iron, and manganese. A total of 63 discernable chironomid taxa was collected and identified. Low pH ponds were generally dominated by Chironomus attenuatus and Tanytarsus, while higher pH ponds contained variable chironomid assemblages. Diversity values (richness) were significantly correlated with pH values. Phillip B. Summers, Jr., J. A. Gore
Pages 474-486 |
1981 |
Toxicity of Mirex to Postlarval and Juvenile Freshwater Prawns Postlarval and juvenile prawns (Macrobrachium rosenbergii) were exposed to 7 mirex concentrations plus control for 96 hours. Static acute toxicity tests were conducted at 28 C using deionized water reconstituted to hardnesses of 11, 42, 160 and 300 mg/l as CaC03 with postlarvae and 42 mg/l with juveniles. No statistical differences were observed in survivals of postlarvae or calculated median lethal mirex concentrations among hardnesses. A 96-hour LC50 for all postlarvae was 33.9 µg/l and for juveniles 900.8 µg/l mirex. Christopher A. Aas, A. G. Eversole
Pages 487-494 |
1981 |
Fish Populations and Water Quality in North Florida Rivers The status of the fish populations of 8 North Florida rivers and their relationships to major quality parameters were explored in an effort to better understand potential effects of man's activities.
Pages 495-507 |
1981 |
Effects of Suboptimal Dissolved Oxygen Concentrations on Developing Striped Bass Embryos Various concentrations of dissolved oxygen were tested against normal embryonic development of striped bass, Morone saxatilis, eggs. Lowest level of dissolved oxygen necessary for normal development was established as 3.0 ppm. Abnormalities associated with suboptimal levels of dissolved oxygen are described, and the number for each concentration quantified. Reginal M. Harrell, J. D. Bayless
Pages 508-514 |
1981 |
Water Quality and Phytoplankton in Dairy Farm Ponds Concentrations of chlorophyll a, soluble orthophosphate, dissolved nitrate and nitrite, and associated water quality parameters were measured biweekly from May 1979 to May 1980 in 3 sequential ponds located on a dairy farm. Pond number 1 was located in the immediate vicinity of the barn and feedlot, and demonstrated limnological characteristics of a sewage settling pond Chlorophyll a and soluble orthophosphate averaged 298 mg/m3 and 10.1 mg/l respectively. Dissolved oxygen in pond 1 averaged 3.4 mg/l at the surface but was never present at a depth of 1 m.
Pages 515-524 |
1981 |