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.
3101 - 3150 of 4522 articles | 50 per page | page 63
| Article | Year |
|---|---|
Foods Of Ducks Wintering In Coastal South Carolina, 1965-1967 During the wintering seasons of 1965-1967, 706 waterfowl gizzards were collected and subsequent food habit studies were made. The collections represented 14 species of waterfowl (9 species of dabblers and 5 species of divers). Six hundred and five collections constituted the dabbling duck sample and 101 gizzards represented the diving duck sample. The most important foods consumed were from fresh and slightly brackish water habitats. Seeds of marsh plants and vegetative fragments and seeds of pondweeds were the primary foods consumed. Animal foods in the diet were not considered important.
Pages 223-245 |
1971 |
Paired plots, seeded with four sizes of lead shot, were established at three locations in an effort to better understand the lead shot problem associated with waterfowl using Catahoula Lake. Half of the plots were treated with a known number of shot in the fall of 1965 and the remainder were similarly treated in the spring of 1966. Soil samples were to be taken in October every two years. In 1967 soil samples were taken and the shot collected were separated according to size and counted.
Pages 245-254 |
1971 |
The Wood Duck Roost Count As An Index To Wood Duck Abundance In Louisiana
Pages 254-261 |
1971 |
Productivity Of Georgia Cottontails Between October, 1965 and April, 1968, 446 adult female cottontail rabbits (Sylvilagus fioridanus) were collected from the Mountain, Pied. mont, and Coastal Plain physiographic regions of Georgia. Prevalence of pregnancy and litter sizes were determined from data on dissected specimens. Although average litter size exhibited a peak of 3.53 in April, no significant differences were noted among months. Also, no significant differences in litter sizes were observed among physiographic regions.
Pages 261-268 |
1971 |
An Evaluation Of Several Body Measurements For Determining Age In Live Juvenile Cottontails An evaluation of several body measurements for determining age of juvenile cottontail rabbits was undertaken on the Coastal Plains and Piedmont Soils of Alabama from January 1963 to December 1966. Coefficients of variation were calculated, and growth curves were fitted from least squares analyses of measurements of tarsus length, ear length, nose-rump length, and body weight from 151 known-aged cottontails born in pens and raised in large enclosures. Tarsus length provided the best estimate of age in young cottontails.
Pages 269-281 |
1971 |
Food Habits Of The Bobwhite Quail In The Georgia Piedmont
Pages 281-285 |
1971 |
Ten pairs of pen-reared bobwhite quail (Colinus virginianus virginianus L.) were studied in an effort to determine the mechanical effect of radio-telemetric transmitters on fertilization. Five pairs of quail were equipped with transmitters weighing approximately 24 grams and measuring approximately 2 x 2 x 3.7 centimeters. The remaining 5 pairs without transmitters were maintained under similar conditions. Records were maintained on production, fertility, and hatchability.
Pages 286-289 |
1971 |
As a waterfowl wintering area, Catahoula Lake is of national significance and one of the most important natural wintering areas in the nation. It is the key to waterfowl abundance and hunting success in Central Louisiana. For a ten year period from fall of 1960, through the winter of 1970, there was a yearly average usage of 20,000,000 duck days for Catahoula Lake (Louisiana Wild Life and Fisheries Commission, 1970). Ducks found in greatest abundance were pintails and mallards.
Pages 289-294 |
1971 |
Techniques For Capturing, Handling, And Marking Nutria Trapping, handling, and marking methods were evaluated for wild nutria (Myocastor coypus) in agricultural areas in Louisiana and Texas. Treadle-operated box traps, set on rafts instead of land, increased retrap response and reduced mortality. A modified leg-hitch sling and the tailhold method were found best for simple handling, and a light-weight restraining device was developed for close examination.
Pages 295-315 |
1971 |
New Design For A Large Portable Mammal Trap Inaccessibility of efficient trapping sites for the European wild hog (Sus scrofa) stimulated the design and use of a portable live trap. Materials for several traps can be transported at one time in a pickup truck and the trap can be assembled by one person in less than 15 minutes. Relatively low cost and convertibility into a larger multi-capture trap are other attributes. A research project involving the live capture of European wild hogs (Sus scrofa) prompted the design and construction of a more portable live trap for this species.
Pages 315-322 |
1971 |
Methods For Obtaining And Evaluating Inputs For Management Information Systems For Wildlife Agencies The objective of this project was to determine what inputs were being used in decision making in the Division of Wildlife Refuges, Bureau of Sport Fisheries and Wildlife. The problem of identifying information items or inputs for a management information system is not unique to this agency. All resource management agencies must identify input types and specific input items before the agency can develop or use a management information system. A sample list of decisions was identified from publications and reports. A classification system was developed and the decisions were categorized.
Pages 323-337 |
1971 |
Efforts To Develop An External Aging And Sexing Technique For Common Snipe In Louisiana Three hundred and two snipe were collected in an effort to evaluate proposed aging and sexing techniques and to determine a practical method of aging and sexing the common snipe by external characters. Thirty-one external variables were selected for measurement based on their potential to discriminate between ages or sexes of various birds as shown by past studies.
Pages 338-346 |
1971 |
Report Of The Farm Game Committee, Southeastern Section of the Wildlife Society
Pages 347-347 |
1971 |
Development Of Color Pattern In Pond-Reared Young Of Five Micropterus Species Of Southeastern U. S. Six stocks of Southeastern Micropterus were spawned in earthen ponds, including wild-caught adults of M. coosae (Alabama and Apalachicola races), M. p. punctulatus, M. punctulatus henshalli, and M. notius, and hatchery stock of M. dolomieui. Fry were reared in earthen ponds provided with Pimephales promelas forage. Periodic samples were preserved to determine pigmentation characteristics at different ages and sizes. An illustrated key to species was prepared based on length and juvenal color pattern. Wild-caught specimens of M. salmoides were included for comparison.
Pages 348-356 |
1971 |
Observations On Spawning And Growth Of Four Species Of Basses (Micropterus) In Ponds Brood stock of basses were obtained from the following locations during March to April, 1969; Micropterus coosae (Alabama race), Alabama River system; M. coosae (Apalachicola rate), Apalachicola River system; M. notius, Suwannee River system; M. punctulatus henshalli, Tallapoosa River system; M. p. punctulatus, Apalachicola River system; M. dolomieui, Mammoth Spring National Fish Hatchery, Arkansas. Adult bass of each stock except Suwannee bass spawned during April 5 to May 19, 1969, in 0.04- to O.l-acre earthen ponds when stocked at 50 to 100 per acre.
Pages 357-365 |
1971 |
Seven ponds in South Alabama were stocked with Florida largemouth bass, Micropterus salmoides jloridanus (Lesueur), seven with native largemouth bass, M. s. salmoides (Lacepede), and seven with F, bass. Samples of bass were collected one and two years after stocking to compare growth rates.
Pages 366-374 |
1971 |
Effects Of A Thermal Effluent On Aquatic Life In An East Texas Reservoir Five data collecting stations were designated within Wilkes Reservoir, a 900 surface acre power plant reservoir in Marion County Texas, to gather information relative to the effects of a steam-electric effluent upon aquatic life. Temperature and dissolved oxygen readings were obtained with a YSI model 51A oxygen meter. Readings taken at designated intervals indicated the degree and extent of the heated water. Dissolved oxygen readings indicated no adverse dissolved oxygen concentrations. Twelve species of fish were collected and examined for external and internal parasites.
Pages 374-384 |
1971 |
In 1967 the Arkansas Power and Light Company and the Arkansas Game and Fish Commission cooperated in a joint project to determine any changes in the stratification, flow pattern, and basic water quality in the lower end of Lake Catherine and in the Ouachita River below Remmel Dam as affected by the increased cooling water output and water temperature resulting from the construction of a new power unit proposed for the Lake Catherine Steam Electric Station, Hot Spring County, Arkansas.
Pages 384-392 |
1971 |
First Reported Incidence Of Gas·Bubble Disease In The Heated Effluent Of A Steam Generating Station During the winter of 1970-71, thirteen species of warm-water fishes exhibited external symptoms of gas-bubble disease (mostly "pop-eye") in the discharge canal and cove of a steam generating station. Peak monthly incidences were 70.8, 33.3, and 23.5 percent for white bass, threadfin shad, and bluegill, respectively. Forty-nine percent of the bluegill in excess of 4 inches were afflicted, whereas only 4.4 percent of those under 4 inches exhibited symptoms.
Pages 392-399 |
1971 |
Stream Damage From Manganese Strip-Mining Abandoned manganese strip mines in Smyth County, Virginia have for many years contributed pollution to the streams draining them. Streams in the Cripple Creek drainage area were sampled during the summer of 1967 to determine the nature and extent of pollution in them, and to evaluate the reclamation work being done by the United States Forest Service. Affected streams were compared with control streams on the basis of physical, chemical and biological properties. Manganese levels in all streams sampled were found to be below one part per million.
Pages 399-418 |
1971 |
Pages 418-426 |
1971 |
Accumulation Of DDT From Food And From Water By Golden Shiner Minnows, Notemigodus Crysoleucas
Pages 426-431 |
1971 |
This research study was designed to determine the degree of damage, if any, to fish populations resulting from channelization, and to determine the rate of recovery, if the damage was significant. This study points out the detrimental effects stream channelization has on fish populations and on the flora and bottom fauna of streams.
Pages 431-446 |
1971 |
The Growth Of Caged Tilapia Aurea (Steindachner) In Fertile Farm Ponds Caged Tilapia aurea were cultured for a 10-week period in four experimental ponds (between 10 and 26 acres) to determine how efficiently these fish are able to use plankton as a source of food and to determine the value of Purina Trout Chow and Auburn No.2 as supplemental rations for caged T. aurea in two common types of fertile farm ponds. Fingerling T. aurea were stocked at the rate of 150 fish per 0.25-cubic meter cage (0.956 pounds per cage). There were four cages per pond.
Pages 446-451 |
1971 |
Digestibility Of Nutrients In Semi-Purified Rations By Channel Catfish In Stainless Steel Troughs The digestibility of nutrients in six semi-purified rations containing variable levels of protein, cellulose and starch by channel catfish in troughs was evaluated by using chromium oxide as an inert reference in the feeds. Excreta were collected using an indirect trough collection method and a direct intestinal collection method. Digestibility coefficients determined on excreta collected in troughs were higher than coefficients determined from excreta collected from the intestine.
Pages 452-459 |
1971 |
Effect Of Selected Concentrations Of Sodium Chloride On The Growth Of Channel Catfish A number of studies have been done on the tolerance of fish to salt, but there is little information on the effect of salt on growth of fish. In the present study, repeated trials in tanks indicated that selected concentrations of salt have a significant effect on the growth of channel catfish. Subsequent trials in ponds showed a similar effect. The increased growth resulting from selected concentrations of salt is of such magnitude as to be of practical significance in some situations. An explanation for this effect is postulated.
Pages 459-466 |
1971 |
Polyculture Studies With Blue, White And Channel Catfish In Brackish Water Ponds This paper includes a discussion of a catfish polyculture experiment conducted in brackish water ponds at the Rockefeller Wildlife Refuge, Grand Chenier, Louisiana. Ponds containing channel catfish (1ctaluTUs punctatus) only served as controls and were compared to other ponds containing various stocking ratios of blue (1. furcatus) , channel and white catfish (I. catus) to determine if production could be increased. Length-weight relationships, coefficients of condition, food conversions, survival and growth data were compared in an analysis of the various stocking combinations.
Pages 466-479 |
1971 |
Effect Of Vitamin Fortification In Auburn No. 2 Fish Feed Vitamin fortification of the Auburn No.2 pelleted fish feed increased net production of channel catfish an average of 19.3 percent in feeding tests conducted in replicated earthen ponds between April 13 and November 9, 1970. A stocking density of 4,000 fingerlings acre was used and the fish were fed 6 days per week. In comparison to a second commercial catfish feed containing identical v\\tamin fortification the fortified Auburn No.2 feed produced an increase in net production of 39.5 percent.
Pages 479-483 |
1971 |
Biological Filters For Increased Fish Production
Pages 483-489 |
1971 |
Channel Catfish Virus Disease In Southern United States Channel catfish virus disease is caused by a specific virus which has been isolated from 23 epizootics reported from nine different states. This paper gives clinical signs, mortality patterns and susceptibility of different age and size fish to channel catfish virus. Recommended practices for controlling the disease are presented.
Pages 489-493 |
1971 |
Disease In Fish Due To The Protozoan Epistylis (Ciliata:peritricha) In The Southeastern U. S. "Red-sore" disease of fishes caused by the stalked ciliate Epistylis, is very common and widespread in the Southeastern U. S. Epizootics occur most frequently during the winter and spring months. Research has shown that this species is not an obligate parasite but only uses the host fish as an attachment site. The disc-like attachment organelle, penetrating the skin of the fish, apparently secretes an enzyme that dissolves the fishes' scales or spines and produces pit-like inflamed lesions. Bacterial infections often occur secondarily to the Epistylis infestation.
Pages 493-496 |
1971 |
Fish Mortalities Associated With Goezia Sp. (Nematoda: Ascaroidea) In Central Florida This is the first report of Goezia sp. from freshwater fish in North America. Extensive mortalities among striped bass (Morone saxatilis) resulted from the damage caused by these nematodes. A possible mode of infection is given and a discussion of the pathology associated with the worms is presented.
Pages 496-497 |
1971 |
Immunofluorescent Techniques Applicable To Detecting Aeromonas Liquefaciens The use of fluorescent labelled antibody (FA) systems provide a means for detecting both the presence of the agent, Aeromonas liquefaciens and fish antibodies to that agent. Bacteria from experimentally infected fish could be identified within 6 hours after obtaining the sample by the FA technique. The preparation of specific antiserum to A. liquefaciens and a proposed method for rapid detection of the bacterium from field specimens is presented.
Pages 498-500 |
1971 |
Investigation Of Striped Bass, Morone Saxatilis (Walbaum), Culture In Oklahoma Various stocking rates were tested over a three year period for production of striped bass in culture ponds. Rates ranged from 10,000 to 160,000 fry per acre. Results indicate higher rates produced as high a percent yield as lower rates. Four food types were also tested during this period to determine which produced the best yields. Commercially prepared supplemental feeds did increase production over natural foods. Food habits data support earlier information that Copepoda, Cladocera and Insecta are important food organisms to juvenile striped bass.
Pages 501-512 |
1971 |
Status And Artificial Reproduction Of Striped Bass From Keystone Reservoir, Oklahoma The investigation to verify striped bass, Morone saxatilis (Walbaum), reproduction in Keystone Reservoir utilized egg sampling and shoreline seining methods. Conditions in the Arkansas River throughout the egg sampling period were unfavorable and seemed to indicate little chance for a successful spawn. However, on June 21, 1971, natural reproduction was verified. The total 1971 fingerling survival was calculated at 975,000. Ten mature females and four male striped bass were taken below Keystone dam by electrofishing during the period May 24 to June 3, 1971.
Pages 513-522 |
1971 |
Food Habits And Feeding Selectivity Of Striped Bass Fingerlings In Culture Ponds Stomach content analyses were performed on 213 striped bass (11.480.0 mm TL) collected from culture ponds at the Front Royal Fish Cultural Station, Virginia, during the 1969 and 1970 rearing seasons. Cladocerans (families Sididae, Daphnidae and Bosminidae) constituted the major portion of the diet of these fish with copepods (family Cyclopidae) and insects (family Chironomidae) also being important food organisms. Cladoceran abundance in the stomachs increased after the bass were 30-40 mm long, while copepod abundance decreased and insect abundance remained relatively stable.
Pages 522-536 |
1971 |
The ovaries of 28 mature female hybrids, striped bass Morone saxatilis (Walbaum) X white bass Morone chrysops (Rafinesque) from Lakes Hartwell and Clark Hill were utilized in determining fecundity in this oviparous species. These data were collected from all year classes present that were sexually mature, which included year classes I, II, and III. No females of year class 0 were captured during these studies. Many hybrid males one year of age were caught at the spawning grounds and specimens as small as 269 mm in total length appeared to be sexually mature.
Pages 536-542 |
1971 |
Research on the extensive culture of striped bass, Morone saxatilis (Walbaum), was conducted in ponds at Auburn University Fisheries Research Unit in the spring of 1971. Investigations were conducted to determine the effect of water hardness, source of fry: and immediate versus delayed stocking on the survival of striped bass fry. Twelve 0.10-acre earthen ponds were used. Six ponds were treated with calcium sulfate to raise the hardness to 150 ppm. The hardness of the remaining ponds was approximately 20 ppm.
Pages 542-548 |
1971 |
Pages 548-549 |
1971 |
The Status Of The Common Shiner, Notropis Cornutus Chrysocephalus (Rafinesque), In Kentucky Fishes belonging to the Notropis cornutus complex are commonly encountered by hydrobiologists. Consequently, a reasonable taxonomic designation of these forms is important. Several attempts have been made to place these fishes in an acceptable classification. To clarify the status of their classification, specimens sampled from collections totaling more than 3400 fish from 40 counties in Kentucky were analyzed for dorsal stripe configuration, chin pigmentation, and anterior dorsolateral and circumferential scale counts.
Pages 550-556 |
1971 |
Redbreast sunfish Lepomis auritus (Linnaeus) were found to spawn during June at water temperatures of 71° to 78°F. Redbreast sunfish redds were almost identical in design and size in the Lumber, Waccamaw, and the South Rivers. Each redd was located in or near a sheltered area such as a log, fallen tree, or stump. The preferred bottom substrate for spawning was sand and small gravel. No redds were observed in silt or detritus.
Pages 556-560 |
1971 |
The Biology Of The Roanoke Bass, Ambloplites Cavifrons Cope, In North Carolina This paper summarizes the final report on the investigation of theRoanoke bass in North Carolina. It contains new data on recognitioncharacters, distribution, food studies, sexual maturity, and age-andgrowthstudies which essentially augments the report "A PreliminaryReport on the Biology of the Roanoke Bass, Ambloplites cavifrons Cope,in North Carolina," Smith, 1969, presented in the 23rd SoutheasternProceedings, 1969.
Pages 561-570 |
1971 |
Hydrophytic Changes Related To Lake Fluctuation As Measured By Point Transects In the spring of 1970 and 1971, vegetation transects were run on22,700 acre Lake Tohopekaliga in Osceola County, Florida. The objectiveof this study was to monitor the response of various plant types to a7 foot drawdown and compare results with those from a study done in1956. As a result of dewatering, littoral vegetation advanced lakewara,expanding from an area of approximately 9,000 acres to 10,500 acres, a16% increase. The significance of this plant response, relative to standingcrop of fish and invertebrate fish-food organisms, is discussed.
Pages 570-583 |
1971 |
Recent Developments In Frog Culture Effects of crowding were investigated with respect to growth, feeding, food conversion, mortality, and health of bullfrogs (Rana catesbeiana) up to 9 months of age. No statistically significant differences were found with regard to growth, food consumption, food conversion, mortality, or health. The average food conversion (C) was less than 2.6 during the first two months of growth and values between 1.65 and 1.99 were obtained. By the third month most values approached 3.00. A high correlation was found between gain and food conversion.
Pages 583-597 |
1971 |
The Frog Culture Industry, Past And Present A brief review on the history of bullfrog (Rana catesbeiana) culture is covered. Present research programs in frog culture are reviewed. The need for developing culture techniques are paramount due to the demand for bullfrogs in biological and medical research, education and dwindling of native stocks. Bullfrogs are reared in 20-foot diameter concrete tanks, housed indoors with controlled temperature. Up to 5,000 young frogs placed in each tank are thinned to about 1,000 as they grow. Crickets, worms, fish, and tadpoles are used for food.
Pages 597-602 |
1971 |
A continuous-flow respirometer was constructed to measure the effect of pesticides and related pollutants on oxygen consumption of estuarine fishes. The parts of the respirometer in contact with pollutants were constructed of glass and teflon for efficiency in cleaning. Filtered, irradiated sea water of constant temperature and salinity was gravity-fed through ten experimental and ten control respiration chambers in which individual fish were held.
Pages 602-606 |
1971 |
Ultrasonic transmitters were commercially purchased. They were cylindrical in shape, 90 mm long by 19 mm in diameter, and they weighed 29.5 g, with battery, in water. They transmitted at a frequency of 74 kilocycles/second. The number of days of active transmission was related to battery type and impulse rate. Transmitters emitting a greater number of impulses per second, with a range of 2.4 to 5.8, tended to stop transmitting sooner than those emitting fewer impulses per second. The difference in longevity between a 3 and 6 impulse per second transmitter was estimated to be 14 days.
Pages 607-622 |
1971 |
Handpicking Macroinvertebrates; Three Methods Compared Benthic samples were sorted by three methods: electrical stimulus applied to living organisms, preserved in rose bengal formalin solution, and preserved natural-colored. The rose bengal stained samples were picked most accurately and rapidly except in very low invertebrate concentrations where the electrical stimulus was more efficient. Naturalcolored samples had the least accurate retrieval and were picked at a rate intermediate to the other two methods.
Pages 622-626 |
1971 |
Culturing, A Method Used To Identify Algae Ingested By Tilapia Bold's Basal and Gorham's media were used to culture algae removed from the digestive tracts of Blue Tilapia, Tilapia aurea (Steindachner). Nine fish representing three-size categories collected from Lake Parker, Florida, were used in the study. Samples extracted from three areas of the gut were introduced to the culture media within twenty-four hours after collection. Microscopic examination of the cultured materials was conducted over a four-week period to enable the completion of reproductive cycles and excystment of algal cells.
Pages 626-635 |
1971 |
Effects Of Increased Temperature On Postlarval And Juvenile Estuarine Fish We simulated thermal increases encountered by postlarval and juvenile estuarine fishes entrained in power plant cooling systems. Three methods were used to measure the effects of thermal shock on these fishes: (1) critical thermal maximum (CTM); (2) changes in routine oxygen consumption; and (3) survival after exposure to sudden increases in temperature for various periods of time. For menhaden, spot, and pinfish acclimated at 15° C, CTM values were 29.4, 31.0, and 31.0 respectively.
Pages 635-642 |
1971 |