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Showing 1 to 20 of 30 for “"fish hatchery"”.
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Food Habits of Snakes in an East Texas State Fish Hatchery
… August 1969 to 1 August 1970 in the Jasper State Fish Hatchery near Jasper, Texas to determine the amount of predation by snakes on fish being propagated. The hatchery consisted of 63 earthen ponds. A total of 373 snakes were captured. Results of stomach contents analyses of the 206 snakes …
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The presence of amphibian ranavirus in Virginia warm water fish hatchery ponds
… as the causative agents in these declines. Fish stocking from hatcheries provides a unique opportunity for organisms, including infectious diseases, to travel over long distances. Ranavirus was previously found in two ponds at Harrison Lake National Fish Hatchery in Charles City County, …
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Release of Juvenile Mussels into a Fish Hatchery Raceway: a Comparison of Techniques
… the laboratory and subsequently release into a fish hatchery raceway during June, September and March. Juveniles released in June experienced a gradual decline in survival rate, with 50% survival after 72 days and stable survival thereafter until 200 days. Juveniles released in September and …
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Field investigation and simulation of nutrient control in a fish-hatchery wastewater stabilization pond system
… off in coastal systems. Conversely, land-based fisheries provide an ecologically sustainable solution to controlling the effects of pollution by regulating the effluent wastewater. A land-based fishery’s wastewater stabilization pond system (WSPS) in south-central Ontario, Canada, was …
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An Evaluation of Adult Freshwater Mussels Held in Captivity at the White Sulphur Springs National Fish Hatchery, West Virginia
… in captivity. White Sulphur Springs National Fish Hatchery (WSSNFH), White Sulphur Springs, WV, has held freshwater mussels for nearly eight years, and has the potential to become an important refugium and propagation facility for conservation of mussels in the Ohio River Basin and elsewhere. …
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A suitable diet and culture system for rearing juvenile freshwater mussels at White Sulphur Springs National Fish Hatchery, West Virginia
… After 60 d, mean survival on Phytofeast, Shellfish Diet, and WSSNFH mix were 75.1 (95% CI: 72.2 to 78.0), 78.9 (95% CI: 74.5 to 83.2), and 85.0 (95% CI: 80.6 to 89.3) percent, respectively. WSSNFH mix had the highest survival which was significantly different from Phytofeast (p=0.01). Mean …
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A Conceptual Model of Groundwater Flow at the Midway, Utah Fish Hatchery as Constrained by Geochemical, Physical Hydrogeological, and Geophysical Methods
… revenues from Utah's $393 million sport fishing industry, the state expends millions of dollars every year on costs associated with whirling disease mitigation and prevention. A state fish hatchery at Midway, Utah was closed when the shallow unconfined aquifer being used for fish culture …
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Evaluating the Feasibility of Rearing Juvenile Freshwater Mussels in a Flow-Through Pond System at White Sulphur Springs National Fish Hatchery
… pond at White Sulphur Springs National Fish Hatchery was evaluated as culture environment for juvenile freshwater mussels of Villosa iris and Lampsilis fasciola. Survival did not differ significantly (p = 0.1910) over 93 d for V. iris cultured with silt (mean 49.8% ± SD 14.5) and without …
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Performance characterization of Erwin, Shasta, and Kamloops strains of rainbow trout under culture conditions at White Sulphur Springs National Fish Hatchery, West Virginia
… Duncan River Kamloops) were collected to guide fish culture operations at White Sulphur Springs National Fish Hatchery (NFH). The performance of the strains was evaluated in terms of survival, growth, disease resistance, reproductive performance (number of ripe and culled females, spawning time, …
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Comparison of Archeological Survey Techniques at Camp Lawton, a Civil War Prison Stockade
… Magnolia Springs State Park and Bo Ginn National Fish Hatchery in Millen, Georgia. Camp Lawton was constructed, occupied, and abandoned over an approximately three month period in the fall of 1864. The survey served a twofold purpose. First, was to evaluate survey methods to determine the most …
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Utilizing Diatoms (Bacilliariophyceae) For the Assemblage of Diversity Indices, Trophic Status, and Soprobity Status in the Uppermost Region of Lake Taneycomo
… source effluent from the Shepherd of the Hill's Fish Hatchery. The point source effluent had no discernable effect on the diversity of diatom flora. Genus and species composition of samples were utilized to produce new site specific measures relating to the trophic and saprobity status of upper …
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Assessment of Largemouth Bass (Micropterus Salmoides) Condition Using Liver Histopathology, Health Parameters and Water Quality Of The Central Chattahoochee River Watershed
… pseudo-control located in the Flint watershed. Fish from Lake Oliver, Lake Harding, and West Point Lake had severely impacted liver health compared to Warm Springs National Fish Hatchery, with DTC rankings over 100 for the three lakes within the Chattahoochee watershed, demonstrating severely …
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Survival and condition of riverine freshwater mussels (Unionidae) confined in cages suspended in ponds
… of six mussel species at the Marion state Fish Hatchery was low for both the sleeve and unrestricted holding methods, 35% and 8%, respectively, after 14 months. It is suspected that excessive accumulation of particulates from pelleted feed contributed to the low survival observed at this …
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Feeding Behavior, Food Consumption, Growth, and Survival of Hybrid Grass Carp (Hypophthalmichthys nobilis x Ctenopharyngodon idella) In South Dakota
… control conditions at the Gavins Point National Fish Hatchery, Yankton, South Dakota and under field conditions in two stockwater impoundments in south-central South Dakota. IN feeding trials, conducted in a 0.07 ha hatchery pond, hybrid grass carp selected Najas guadalupensis, Chara sp. and …
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Fish Community Structure and Water Quality Assessment (Index of Biotic Integrity) of the San Marcos River, Texas
… was conducted on the San Marcos River to examine fish community structure by surveying fishes and to assess water quality and impacts from point and nonpoint sources using the Index of Biotic Integrity (181). The stable water temperature, flow and clarity found in the headwaters of the San Marcos …
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Effects of temperature and density on the facial malformation of hatchery-reared cisco, Coregonus artedi
… cisco due to population declines. However, hatchery-reared cisco develop flat, subterminal snouts in hatchery environments instead of the pointed, terminal mouth observed in the wild. The cause and onset of the malformation could be the result of physical trauma, diet, genetic …
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Influence of Early Life Stage Hatchery Enhancement Practices on Maternal Reproductive Investment in Coho Salmon (Oncorhynchus kisutch)
Fish hatchery enhancement programs are a central component of Canadian Pacific salmon management, supporting commercial, recreational, cultural, and conservation objectives. However, the consequences of captive rearing environments for the reproductive phenotype of returning adults remain poorly …
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