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Showing 1 to 20 of 38 for “"Fingerlings"”.
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Growth, survival, and vulnerability to predation of stocked walleye (Stizostedion vitreum) fingerlings
… rectangular tanks. In field studies, walleye fingerlings averaging 35 mm and 53 mm (mean total length) were stocked in two ponds (3- and 7- hectares) respectively: both contained largemouth bass, northern pike, yellow perch (Perca flavescenes), green sunfish (Lepomis cyanellus), and fathead …
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Relative Survival and Growth of Walleye and Saugeye Fingerlings Stocked in South Dakota Small Impoundments
… walleye x sauger Stizostedion canadense hybrids) fingerlings were concurrently stocked at equal densities into five small impoundments in 1997 and 1998 to evaluate relative survival and growth. Prior to stocking, fish were differentially marked with 7 0 0 ppm oxytetracycline hydrochloride (OTC) to …
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The impacts of stocking stress and largemouth bass predation on the survivorship of juvenile striped bass stocked in Smith Mountain Lake, Virginia
… in 1994 and 1995 quantified percentage of fingerlings lost due to hauling/handling stress. Mean mortalities ranged from 1.78% for Phase I fingerlings in 1994 to 99.5% for Phase II fingerlings (reared in a recirculating aquaculture system for increased size at stocking) in 1994. Mortality …
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The effects of acute handling stress on the secondary stress responses of striped bass (Morone saxtilis) and its hybrid (Morone chrysops x Morone saxtilis)
… bass. The three goals were to: determine if fingerlings responded with the General Adaptation Syndrome, if the two had different responses to the stress, and if feeding state (fed up until the day of the stress vs. starved for three days prior) had an effect on the stress response. The second …
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Catfish Cage Culture in a South Dakota Power Plant Cooling Reservoir
… feed produced growth equal to floating feed when fingerlings averaged less than 110 mm total length. Channel catfish averaging 2.3 g and 65 mm total length were cultured to determine the most efficient food among 4 types tested. The feed type, mean weight, length, and percent survival after 36 …
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Use of High Pressure Liquid Chromatography to Detect and Quantify Oxytetracycline Marks in Walleye Otoliths and Dorsal Spines
… in walleye Stizostedion vitreum fry and fingerlings. Current visual methods for detection of these marks are subjective, and biologists are unable to quantify the amount of OTC in a sample. The goal of this study was to determine if high pressure liquid chromatography (HPLC) is a feasible …
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Genetic evaluation of walleye (Stizostedion vitreum vitreum) stock structure and recruitment in Claytor Lake, Virginia
… (1974, 1975, 1977, 1979) utilized walleye fingerlings of primarily Kansas origin. A biochemical genetic approach was used to evaluate the present stock structure of Claytor Lake walleyes. Electrophoretic phenotypes for skeletal muscle malate dehydrogenase (MDH) and parvalbumin were …
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Reproductive Manipulation and Larval Rearing Techniques of Yellow Perch (Perca flavescens)
… four separate spawns annually, yielding 644,000 fingerlings year-1. Including start-up, fixed and variable costs, such a facility can produce 3" (76mm) fingerlings for $0.20 fingerling-1 for the first 5 years of operation, $0.16 fingerling-1 for the second 5 years and $0.06 fingerling-1 after 10 …
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Evaluation of a Power Plant Reservoir as a Fingerling Walleye Rearing Facility
… predators from the evaporation pond. Harvested fingerlings averaged 133.0 mm± 4.4 mm (SE) and 122.7 mm± 2.9 mm in total length in September, 1986 and 1987, respectively. Growth was reduced by a late-summer decline in forage fish abundance. The evaporation pond is probably less suitable for …
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CHARACTERIZATION AND PATHOLOGICAL STUDY OF A. HYDROPHILA IN WALKING CATFISH (CLARIAS GARIEPINUS)
… Their pathogenicity was studied in fingerlings and adult walking catfish, Clarias gariepinus using three different preparations of unwashed, washed or washed but sonicated bacteria. The pathological effects of the virulent strain were also studied in immunized fish or fish injected …
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Food habits, population dynamics, and bioenergetics of four predatory fish species in Smith Mountain Lake, Virginia
… data sets. First-year survival of striped bass fingerlings averaged 20.8% for an 11-year period (1973 to 1983) and ranged from 3.9% to 54.3%. Average survival of age-0 largemouth bass and smallmouth bass was 53% and 45%, respectively, for the period 1979 to 1983. Species-specific survival rates …
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Comparative Growth of All-Female Versus Mixed Sex Yellow Perch (Perca flavescens) in Recirculating Aquaculture Systems
… filter or a bead filter. The all-female fingerlings (S1) used were originally derived from Lake Mendota, Wisconsin. The mixed-sex fingerlings (S2) used were originally derived from Lake Erie. Temperature and photoperiod (23°C, 16H-L) were maintained at levels for optimal growth. Absolute …
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Rainbow Trout (Salmo Gairdneri) Cage Culture and Primary Production In Eastern South Dakota Dugout Ponds
… reared in a lentic environment. The high cost of fingerlings was the limiting factor in a hypothetical dugout culture operation. Great water transparency seemed to be the major factor contributing to increased primary production, phytoplankton standing crop, and diel dissolved oxygen levels in …
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Rainbow Trout Cage Culture and Benthic Production in East-Central South Dakota Dugouts
… stocked with rainbow trout (Salmo gairdneri) fingerlings to determine the feasibility of raising annual fish crops. Growth rates were compared between feeding rate (0, 3, and 5% body weight/day [bwt/day]) and stocking rate (35, 52, and 70 fish/cage). Growth was significantly (P ≤0.05) greater …
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Factors Affecting Recruitment of Black Crappies in South Dakota Waters
… 3/h. In 1994 and 1995, larger (circa 14-19 cm) fingerlings were stocked, and fall CPUE values were 185/h and 33/h. In addition, the fingerlings stocked in 1994 were collected during fall 1995 electrofishing as age-1 fish at a rate of 41/h. At northern latitudes, small fingerling saugeyes grow …
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Natural Reproductive Cycle of Northern Largemouth Bass in the Upper Midwest, with Applications to Off-season Spawning
… northern largemouth bass M. s. salmoides fingerlings are produced for stocking purposes at Blue Dog State Hatchery using traditional pond culture methods. Fingerlings (~75 mm) are harvested and transported to stocking sites during late summer. Fingerling survival to age-1, however, is …
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Stocking Density, Strain Performance, and Feeding Method Evaluation of Cage Reared Rainbow Trout (Salmo gairdneri) in Eastern South Dakota
… Dakota. Rainbow trout when stocked as small fingerlings in the spring did not reach a marketable weight (200 g). The fish did attain a size acceptable to some landowners for personal consumption. Maximum stocking density (fish/m3) was not determined. Densities greater than those used would …
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Evaluation of Walleye Fingerling Plants in Lake Darling, North Dakota
… instigated experimental stockings of walleye fingerlings in the years 1952, 1953, and 1954 with special emphasis on distribution methods, planting procedures, and condition of the fish. This study is an attempt to evaluate these experimental stockings. Information on age and growth along with …
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Advanced Largemouth Bass Production and Stock Contribution to Small South Dakota Impoundment Fisheries
… the fall, but there has been concern that these fingerlings are of inadequate size to recruit to the population as a result of insufficient energy reserves and high predation rates. A preliminary assessment found little to no recruitment of fall‐stocked age‐0 largemouth bass (75 mm total length) …
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A Comparative Analysis of Three Biofilter Types Treating Wastewater Produced in Recirculating Aquaculture Systems
… with yellow perch, <I>Perca flavescens</I>, fingerlings. Fish were stocked at a density of approximately 455 fish m³. Biofilter types were the only factor differing among system designs and were an upflow pulsed bed bead filter, packed tower trickling filter and a rotating biological …
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