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University of Arkansas, Fayetteville

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Articles 31 - 60 of 71

Full-Text Articles in Aquaculture and Fisheries

Effect Of Edwardsiella Ictaluri Infection On Plasma Corticosterone Levels In Channel Catfish (Ictalurus Punctatus), Janice L. Cooper, Stanley N. David, John K. Beadles Jan 1984

Effect Of Edwardsiella Ictaluri Infection On Plasma Corticosterone Levels In Channel Catfish (Ictalurus Punctatus), Janice L. Cooper, Stanley N. David, John K. Beadles

Journal of the Arkansas Academy of Science

Channel catfish (Ictalurus punctatus) were innoculated with a new host specific bacterium, Edwardsiella ictaluri, to observe the influence of bacterial infection on plasma corticosterone levels at various temperatures. The fish were innoculated intraperitoneally. The infected fish were separated from the controls. Plasma corticosterone concentrations were determined by radioimmunoassay. The plasma corticosterone concentrations in non-innoculated catfish were about 6.15 ng/ml and nearly 5.63 ng/ml in the infected fish. The lower level of the hormone in the infected catfish was not significantly different from the control level. High temperature was a stress factor which increased plasma corticosterone levels whereas E. ictaluri retarded …

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Evaluation Of A Frame Trawl And Tucker Trawl For Sampling Young-Of-The-Year Fish, Michael R. Dewey, Thomas E. Moen Jan 1983

Evaluation Of A Frame Trawl And Tucker Trawl For Sampling Young-Of-The-Year Fish, Michael R. Dewey, Thomas E. Moen

Journal of the Arkansas Academy of Science

Relative efficiencies of two trawls — a 1.88 m² frame trawl and a 2 m² Tucker trawl— were compared for sampling young-of-the-year (YOY) shad, Dorosoma sp., crappies, Promoxis sp., and sunfishes, Lepomis sp. Seven tests with six replicate hauls for each net in each test were analyzed by non-parametric techniques. Relative efficiency ratios, calculated from mean density estimates, were compared. The Tucker trawl was the more efficient for sampling YOY shad, its relative efficiency increasing as shad length increased. Results for the other two taxa were less consistent. The larger size range of YOY shad captured compared with the size …

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Size Variation Of Ungraded And Graded Channel Catfish Reared In Cages, Donald C. Greenland, Walter R. Robison, Scott H. Newton Jan 1983

Size Variation Of Ungraded And Graded Channel Catfish Reared In Cages, Donald C. Greenland, Walter R. Robison, Scott H. Newton

Journal of the Arkansas Academy of Science

Graded and ungraded channel catfish (Ictalurus punctatus) fingerlings stocked in three partitioned floating cages were reared for 140 days during the summer, 1982. Fish were fed to satiation once daily with a commercial pelleted ration. At harvest, graded fish averaged 403 g and ungraded 362 g. Coefficients of variation indicated graded fish were more uniform in size and a significantly greater proportion of the graded fish were of salable size (> 340 g).

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Spawning The Grass Carp Female X Bighead Carp Male, Mike Freeze, Scott Henderson Jan 1983

Spawning The Grass Carp Female X Bighead Carp Male, Mike Freeze, Scott Henderson

Journal of the Arkansas Academy of Science

Methods and procedures for artificially spawning the female grass carp (Ctenopharyngodon idella) X male bighead carp (Aristichthys nobilis) are presented. Broodstock selection and treatment, hormone injections, ovulation, fertilization, hatching techniques and stocking rates are discussed. This paper outlines the procedures necessary to successfully produce hybrid grass carp

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Mosquitofish Production In Monoculture And Polyculture Ponds, Walter R. Robison, Scott H. Newton, Max V. Meisch Jan 1983

Mosquitofish Production In Monoculture And Polyculture Ponds, Walter R. Robison, Scott H. Newton, Max V. Meisch

Journal of the Arkansas Academy of Science

No abstract provided.

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Selection Of Scales For Growth Analysis Of Largemouth Bass, Donald C. Jackson, Raj V. Kilambi Jan 1983

Selection Of Scales For Growth Analysis Of Largemouth Bass, Donald C. Jackson, Raj V. Kilambi

Journal of the Arkansas Academy of Science

Scales from four regions of the body of largemouth bass were compared for efficacy in estimating fish length at the time of scale formation and at capture. The scales from above and below the lateral line in the pectoral and caudal peduncle regions yielded intercepts of 64.73, 52.36, 19.77 and 25.81 respectively for the total length-scale radius relationship. These intercept values represent the fish length at the time of scale formation. By the regression of estimated lengths at capture on empirical lengths it was found that the caudal peduncle scales were better suited in predicting fish length.

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Comparison Of Two Year Classes Of Hybrid Grass Carp And Grass Carp For Aquatic Plant Control, Mike Freeze, Scott Henderson Jan 1983

Comparison Of Two Year Classes Of Hybrid Grass Carp And Grass Carp For Aquatic Plant Control, Mike Freeze, Scott Henderson

Journal of the Arkansas Academy of Science

Two year classes of grass carp and F, hybrids resulting from bighead carp male x grass carp female were compared at various stocking densities for aquatic plant control. One and two year old grass carp exhibited higher survival rates and better growth rates than the same age hybrid grass carp. The presence of grass carp or hybrid grass carp decreased both Secchi disc transparencies and dissolved oxygen values. Grass carp had a greater negative effect upon these measurements because they removed the vegetation quicker than the hybrid grass carp. These apparent detrimental effects on water quality are necessary trade-offs for …

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Effect Of Stocking Density On Channel Catfish Growth, Survival And Food Conservation Efficiency In Cages, Walter R. Robison, Scott H. Newton Jan 1982

Effect Of Stocking Density On Channel Catfish Growth, Survival And Food Conservation Efficiency In Cages, Walter R. Robison, Scott H. Newton

Journal of the Arkansas Academy of Science

No abstract provided.

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Wild Commercial Fishery Of Arkansas, Tommie Crawford, Mike Freeze Jan 1982

Wild Commercial Fishery Of Arkansas, Tommie Crawford, Mike Freeze

Journal of the Arkansas Academy of Science

Arkansas' wild commercial fishery industry was surveyed to evaluate commercial fish products produced within the state. The total wild commercial catch for the period of 1 July 1980 to 30 June 1981 was approximately 8,680,124 kg with a value of $6,245,967. These values represent an increase of approximately 3% from the previous year. The bulk of the commercial harvest was made up of buffalo fishes (Ictiobus spp.), catfishes (Ictalurus spp), gars (Lepisosteus spp.) and carp (Cyprinus carpio). The number of commercial fishermen remained relatively unchanged from 1979-1980, with 3,843 licensed fishermen operating on the state's waterways. The number of licensed …

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Effects Of Water Released From Stratified And Unstratified Reservoirs On The Downstream Water Quality, Stephen B. Smith Jan 1982

Effects Of Water Released From Stratified And Unstratified Reservoirs On The Downstream Water Quality, Stephen B. Smith

Journal of the Arkansas Academy of Science

Water quality samples were collected from the Little River system in Pine Creek Lake, Oklahoma, and Gillham Lake, Arkansas, and their associated tailwaters during the winter (reservoirs unstratified) and summer (reservoirs stratified) of 1980. Downstream water quality was not affected by reservoir water releases while the reservoirs were unstratified. When the reservoirs were stratified water quality in the tailwaters was dependent on the release depth of the water. The practice of flushing out a tailwater following an extended low flow period should be examined on a site by site basis. Anoxic water released from a reservoir may contain high amounts …

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Polyculture Of Giant Malaysian Prawns (Macrobrachium Rosenbergii) And Fathead Minnows (Pimephales Promelas), Tommie Crawford, Mike Freeze Jan 1982

Polyculture Of Giant Malaysian Prawns (Macrobrachium Rosenbergii) And Fathead Minnows (Pimephales Promelas), Tommie Crawford, Mike Freeze

Journal of the Arkansas Academy of Science

No abstract provided.

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Overwintering, Feeding Study Of Channel Catfish In Cages, Walter R. Robison Jan 1982

Overwintering, Feeding Study Of Channel Catfish In Cages, Walter R. Robison

Journal of the Arkansas Academy of Science

No abstract provided.

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Warmwater Fish Community Of A Cool Tailwater In Arkansas, Richard A. Frietsche Jan 1982

Warmwater Fish Community Of A Cool Tailwater In Arkansas, Richard A. Frietsche

Journal of the Arkansas Academy of Science

A diverse warmwater fish community has persisted in the Lake Greeson tailwater, despite hydropower releases of cold hypolimnetic water. Forty-eight species of fish were collected by electrofishing in the upper 16.1 km of the tailwater. Hydropower releases have reduced the abundance of some of the warmwater sport fish in the upper tailwater, and their populations are probably maintained in part by recruitment from downstream. Angling effort has been diverted from the warmwater sport fish populations to a put-and-take trout fishery.

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Water Quality And Benthic Invertebrate Communities In Lake Greeson Tailwater, Stephen B. Smith Jan 1982

Water Quality And Benthic Invertebrate Communities In Lake Greeson Tailwater, Stephen B. Smith

Journal of the Arkansas Academy of Science

The Little Missouri River below Lake Greeson, Arkansas, was sampled for water quality and benthos during summer 1979. The hydropower turbine water intakes, 20 m below the lake surface, released hypolimnetic water into the tailwater. Downstream water temperatures, total organic matter, and total inorganic matter varied considerably and benthic invertebrate communities immediately below the dam were stressed by waters released for power generation. Detrimental effects from altered temperature and flow regimes had decreased by 16.1 km downstream, where invertebrate communities were typical of less stressed environments.

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Aquaculture Industry Of Arkansas In 1979-1980, Donald H. Fiegel, Mike Freeze Jan 1981

Aquaculture Industry Of Arkansas In 1979-1980, Donald H. Fiegel, Mike Freeze

Journal of the Arkansas Academy of Science

A survey of previous fish farmer certificate holders in Arkansas was conducted during 1979-1980 using renewal questionnaires, telephone conversations, and personal contacts. This survey was compared with similar surveys from preceding years. Approximately 51.0% of 12,372 intensively farmed hectares in 1979-80 were devoted to bait fish production, while 22.9% were utilized in food fish production. Acreage in bait fish, food fish, and fingerling production decreased from 1979 to 1980; however, price increases during this time resulted in a higher total value of the industry

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Economics Of Rainbow Trout Production In Arkansas, Walter R. Robison, Scott H. Newton Jan 1981

Economics Of Rainbow Trout Production In Arkansas, Walter R. Robison, Scott H. Newton

Journal of the Arkansas Academy of Science

No abstract provided.

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Winter Feeding Of Fingerling Channel Catfish In Cages, D. B. Burke, Walter R. Robison Jan 1981

Winter Feeding Of Fingerling Channel Catfish In Cages, D. B. Burke, Walter R. Robison

Journal of the Arkansas Academy of Science

No abstract provided.

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Ration/Density Comparisons With Caged Channel Catfish, Scott H. Newton, Walter R. Robison Jan 1981

Ration/Density Comparisons With Caged Channel Catfish, Scott H. Newton, Walter R. Robison

Journal of the Arkansas Academy of Science

No abstract provided.

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Potential Of Utilizing Scrap Processed Cheese As A Major Ration Component For Channel Catfish, Calvin J. Haskins, Scott H. Newton Jan 1980

Potential Of Utilizing Scrap Processed Cheese As A Major Ration Component For Channel Catfish, Calvin J. Haskins, Scott H. Newton

Journal of the Arkansas Academy of Science

Three cages (0.9 m³) were stocked with 200 channel catfish, Ictalurus punctatus Rafinesque, fingerlings (73.7 g avg.) in a 1.5 hectare pond. Two cheese rations were formulated and fed to the catfish; the first consisting of cheese, oil, and vitamin C (C + VC)and the second consisting of cheese, cottonseed meal, oil, trace minerals, and vitamins (CC + VM). A commercial trout ration (TC) was fed as a control. High mortalities occurred in the C + VC diet, thus resulting in premature removal of that cage from the study (after 86 days). A sample of 50 fish from the two …

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Evaluation Of A Full-Fat Soybean Ration For Channel Catfish Production In Cages, Scott H. Newton, Walter R. Robison, Calvin J. Haskins Jan 1980

Evaluation Of A Full-Fat Soybean Ration For Channel Catfish Production In Cages, Scott H. Newton, Walter R. Robison, Calvin J. Haskins

Journal of the Arkansas Academy of Science

An experimental ration consisting of 50% full-fat soybeans, heated 170°C, was compared to a commercial trout chow in a 120-day feeding trial using two stocks of channel catfish, Ictalurus punctatus Rafinesque. Catfish were reared in 0.9 m³ floating cages, with 200 fish per cage, anchored in a 1.5 hectare farm pond. A Central Arkansas stock significantly outperformed a Southeast Arkansas stock for comparisons of net production and food conversion efficiency (FCE), with 92% greater production and 41% better FCE, respectively. Survival was 90% or greater for all fish. There was no significant difference in dress-out weight between the stocks. However, …

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Food Of Bluegill And Longear Sunfish In Degray Reservoir, Arkansas, 1976, Horace E. Bryant, Thomas E. Moen Jan 1980

Food Of Bluegill And Longear Sunfish In Degray Reservoir, Arkansas, 1976, Horace E. Bryant, Thomas E. Moen

Journal of the Arkansas Academy of Science

Stomach contents were examined from 544 bluegill (Lepomis macrochirus) and 709 longear sunfish (L. megalotis) collected from nearshore areas of DeGray Reservoir April-November 1976. Major foods of bluegill (percentage of total weight of food in parentheses) were insects (33), bryozoa (7.3), planktonic crustaceans (6.5), and plant materials (15.4). The major food items contributing to the diet of longear sunfish were insects (52.6%), crayfish (12.5%), fish (7.4%), and plant material (6.7%). Although bluegill and longear sunfish are closely related species, their diets were not as similar as expected: bluegill consumed zooplankton, adult dipterans, and adult ephemeropterans associated with limnetic areas; while …

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Food Of Largemouth Bass (Micropterus Salmoides) In Degray Reservoir, Arkansas, 1976, Horace E. Bryant, Thomas E. Moen Jan 1980

Food Of Largemouth Bass (Micropterus Salmoides) In Degray Reservoir, Arkansas, 1976, Horace E. Bryant, Thomas E. Moen

Journal of the Arkansas Academy of Science

Stomach contents were examined from 748 largemouth bass, Micropterus salmoides (<125 mm total length), collected from DeGray Reservoir during April-November 1976. Fish constituted 59% by weight of the total diet and occurred in 81% of the stomachs; crayfish made up nearly 38% of the weight and occurred in 24% of the stomachs. Sunfish, the principal fish food (about 28% by weight), were observed in 36% of the stomachs. Shad were the second most important prey (23% by weight and 29% frequency in occurrence). Crayfish constituted about 42% of the total weight of the food of bass 200 mm long or longer, but only 12% in bass less than 200 mm. Crayfish consumption was greatest during the fall.

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Growth And Year Class Composition Of The White Bass (Morone Chrysops) In Degray Lake, Arkansas, Thomas E. Moen, Michael R. Dewey Jan 1980

Growth And Year Class Composition Of The White Bass (Morone Chrysops) In Degray Lake, Arkansas, Thomas E. Moen, Michael R. Dewey

Journal of the Arkansas Academy of Science

No abstract provided.

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Loss Of Larval Fish By Epilimnial Discharge From Degray Lake, Arkansas, Thomas E. Moen, Michael R. Dewey Jan 1978

Loss Of Larval Fish By Epilimnial Discharge From Degray Lake, Arkansas, Thomas E. Moen, Michael R. Dewey

Journal of the Arkansas Academy of Science

Weekly samples of larval fish were collected from water discharged from the epilimnion of DeGray Lake into the tailwaters, for power generation, from April through August, 1976 and 1977. Peak rates of loss measured were 1.4 larvae/m³ in May, 1976 and 2.7/m³ in April, 1977. Sunfish, shad and crappie made up 97% of an estimated 83.3 million fish lost in 1976, and 98% of 122.4 million lost in 1977. The most critical period for larval fish loss extended from the last week of April to the first week of June. No definite relationships were noted between length of the power …

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Addendum To "Fishes Of The Fourche River" In North Central Arkansas, Steve M. Bounds Feb 1977

Addendum To "Fishes Of The Fourche River" In North Central Arkansas, Steve M. Bounds

Journal of the Arkansas Academy of Science

No abstract provided.

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Distribution, Habitat Notes, And The Status Of The Ironcolor Shiner, Notropis Chalybaeus Cope, In Arkansas, Henry W. Robison Jan 1977

Distribution, Habitat Notes, And The Status Of The Ironcolor Shiner, Notropis Chalybaeus Cope, In Arkansas, Henry W. Robison

Journal of the Arkansas Academy of Science

Field work throughout Arkansas since 1971 and a search of museum records have yielded 35 collections of the iron color shiner, Notropis chalybaeus Cope (Cyprinidae), not previously documented in Arkansas. From these data the iron color shiner is considered to be confined to the Coastal Plain physiographic province of Arkansas below the Fall Line, becoming most abundant in the Ouachita and Red River drainages of southern Arkansas. Notes on habitat preference, species associates, and current status of N. chalybaeus within Arkansas are presented.

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Growth, Mortality, Food Habits, And Fecundity Of The Buffalo River Smallmouth Bass, Raj V. Kilambi, Walter R. Robison, James C. Adams Jan 1977

Growth, Mortality, Food Habits, And Fecundity Of The Buffalo River Smallmouth Bass, Raj V. Kilambi, Walter R. Robison, James C. Adams

Journal of the Arkansas Academy of Science

Total length-scale radius, and length-weight relationships were determined for smallmouth bass from the Buffalo River. The back calculated lengths were used in analyzing the age-length data by the Bertalanffy growth formula. Asymptotic length and weight were estimated as 58.3 cm and 4.6 lbs, respectively. Annual mortality of 36 percent was estimated by the catch curve method. Insects (54%), fishes (16%), and crayfish (14%) were the abundant food organisms by frequency of occurrence; while fishes (64%) and crayfish (29%) were the dominant food items by the gravimetric method. Based on the gonosomatic indices and frequency distribution of ovum diameter measurements, smallmouth …

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Fishes Of The Eleven Point River Within Arkansas, Michael B. Johnson, John K. Beadles Jan 1977

Fishes Of The Eleven Point River Within Arkansas, Michael B. Johnson, John K. Beadles

Journal of the Arkansas Academy of Science

A survey of the fishes of the Eleven Point River and its tributaries was made between 31 January 1976 and 13 February 1977. Sixty-three collections, literature records and personal communications revealed 90 species distributed among 19 families. This study revealed 31 species previously not reported for this river system. The Eleven Point River is a clear, predominantly springfed Ozark stream which is located in western Randolph County. From the Arkansas-Missouri state line, the Eleven Point River flows south for approximately 64 km before joining the Spring River. Terrain in the Arkansas portion of this river is rugged as the river …

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Fishes Of Crowley's Ridge In Arkansas, Robert F. Fulmer, George L. Harp Jan 1977

Fishes Of Crowley's Ridge In Arkansas, Robert F. Fulmer, George L. Harp

Journal of the Arkansas Academy of Science

Crowley's Ridge is one of the six natural geographic divisions of Arkansas which rises out of the Mississippi embayment as a relatively steep, uncultivated loessial mass. The ridge is drained by a network of headwater streams which are relatively clear with alkaline pH values and uniformly low alkalinity values. Carbon dioxide values were moderate and oxygen values were adequate. The fish species collected were basically headwater in composition. Isolated groups of characteristically upland species indicate that environmental quality of adjacent deltaic streams was better at one time.

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Fishes Of Sylamore Creek, Stone County, Arkansas, George C. Frazier, John K. Beadles Jan 1977

Fishes Of Sylamore Creek, Stone County, Arkansas, George C. Frazier, John K. Beadles

Journal of the Arkansas Academy of Science

A survey of the fishes of Sylamore Creek in northcentral Arkansas yielded a total of 15,041 specimens representing 44 species, including one hybrid, distributed among 11 families. The three most abundant fishes collected were: Notropis pilsbryi Fowler, Dionda nubila (Forbes), and Notropis telescopus (Cope), respectively. Two species, Campostoma anomalum pullum (Agassiz), and N. pilsbryi, were collected at every station. Sylamore Creek is a clear predominantely spring-fed stream that originate in the Ozark Mountains of northcentral Arkansas and empties into the White River 72.3 km above Bates vilie. Sylamore Creek is composed of two branches, North and South Sylamore, which comprise …

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