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Showing 1 to 20 of 173 for “"water temperatures"”.
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Mathematical modeling of river water temperatures
… regression to the mathematical modeling of river water temperature is demonstrated. Consideration is also given to the problem of estimating thermal inputs to rivers from man-made sources such as electrical power plants. First, power spectral density techniques are used in the time-series analysis …
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Fungal Control Methods, Diets and Water Temperatures Used to Culture Paddlefish, Polydon spathula
… and 1977, to evaluate the effects of diet and water temperature on growth and survival of paddlefish, Polyodon spathula, young, and the effects that fungicides have on hatching success and fry survival. The W-7 cool water diet was fed hourly and three times daily while the Liv commercial diet …
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Modeling Water Temperatures and Brook Trout (Salvelinus fontinalis) Growth Potential Within a Complex Appalachian Riverscape
Climate change is expected to cause air temperatures to increase 2-5°C in the Appalachians throughout the 21st century. These air temperature increases will cause water temperatures to increase, and may negatively effect cold and cool water fish species. Brook trout are an important game fish …
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The Cardiovascular Responses of Running on an Underwater Treadmill at Two Different Water Temperatures Compared to Land Based Running
… specific exercises performed in and out of the water environment. The prevalence of aquatic exercising is increasing due to the standard benefits of exercise, but with a reduction of stress and impact. Data from published studies are equivocal in the metabolic requirements using land-based …
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Interannual Variability of Lotic Macroinvertebrate Communities in the Kootenay-Columbia Basin, BC: the Relative Contribution of Environmental Gradients vs. Stream Water Temperatures
Climate change is predicted to impact freshwater ecosystems through interannual variability in surface water temperature, discharge, and physiochemical water characteristics. Benthic macroinvertebrate communities (BMI) are often used to assess biological impacts of long-term environmental changes. …
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Total Sulfur Amino Acid Nutrition of Northern Largemouth Bass (Micropterus Salmoides Salmoides) and Florida Largemouth Bass (Micropterus Salmoides Floridanus) at Two Water Temperatures
Made available in DSpace on 2014-12-13T19:42:45Z (GMT). No. of bitstreams: 1 7811262.pdf: 2422712 bytes, checksum: d13b0ebb683feecbfe9196cc703d85dd (MD5) Previous issue date: 1978
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An Investigation of Spatial and Temporal Variability in Several of Montana's Reference Streams: Working Toward a More Holistic Management Strategy
Water temperature is a physical property that fundamentally affects stream ecology and is considered an important water quality parameter from scientific and legal view points. On global, catchment and reach scales, anthropogenic activities have substantially altered natural stream temperature …
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An Investigation of Spatial and Temporal Variability in Several of Montana's Reference Streams: Working Toward a More Holistic Management Strategy
Water temperature is a physical property that fundamentally affects stream ecology and is considered an important water quality parameter from scientific and legal view points. On global, catchment and reach scales, anthropogenic activities have substantially altered natural stream temperature …
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Thermal Tolerances of an Endemic Hot Spring Snail Physella wrighti Te and Clarke (Mollusca: Physidae)
… (Te and Clarke, 1985) is an Endangered freshwater snail endemic to the Liard Hot Springs in northern British Columbia. It inhabits water temperatures from 23.5oC to 36oC and is active year-round. Despite its conservation status, little else is known about this species. To advance our …
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Stocking Density, Strain Performance, and Feeding Method Evaluation of Cage Reared Rainbow Trout (Salmo gairdneri) in Eastern South Dakota
… (3 m) was justified in this area due to the high water temperatures that were common. Growth and survival of three strains of cage reared rainbow trout were compared in a gravel pit environment. The Hildebrand strain performed significantly better (p<0.01) than the Kamloops and Growth strains for …
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Effect of storage temperatures on the microbiological quality, safety, and viability of quahog clams, Mercenaria mercenaria
… was to examine the effects of various storage temperatures and times on the microbiological quality, safety, and viability of hard shelled quahog clams. Samples were stored at four different incubation temperatures (3.3, 7.2, 10.0, and 12.S0C) for a period of three weeks, following their …
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Effects of Temperature on Foraging, Endurance, and Sprint Speed in Agkistrodon Piscivorus and Nerodia Sipedon
… two sympatric semi-aquatic snakes, the Northern water snake (Nerodia sipedon) and Cottonmouth (Agkistrodon piscivorus). Dietary data for both species from a cold Ozarks stream habitat revealed that A. piscivorus does not consume aquatic prey at this site while N. sipedon is primarily piscivorous. …
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Temporal and Thermal Effects on Fluvial Erosion of Cohesive Streambank Soils
… of lakes and river, loss of navigable waterways, flooding and water quality impairment, has been estimated at 44 billion USD (Pimentel, 1995; Telles, 2011). While eroding sediment sources can either be from land or from stream/river systems, the erosion from streambanks can be quite …
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Variations in Community Fish Production and Diversity Across the Appalachians: Implications for Climate Change
… change is considered a major threat to freshwater ecosystems through altering biodiversity, structure, and function. Having a thorough understanding of how diverse ecosystems respond to temperature change is vital to ecosystem management and conservation. During summer 2012, I quantified fish …
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Rainbow Trout (Oncorhynchus mykiss) Summer Habitat Use in Lake Spokane, Washington
… of rivers, influencing a wide variety of water quality characteristics directly impacting fish species. These physical alterations will interact with increasing temperatures, due to climate change, reducing thermal habitat for cold-water fish species. Rainbow Trout are sensitive to changes …
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Survival and condition of riverine freshwater mussels (Unionidae) confined in cages suspended in ponds
The survival of 1,729 freshwater mussels (15 species) was monitored in ponds at study sites in Critz, Blacksburg and Marion, Virginia. Mussels were held within plastic and metal screen cages fastened to PVC float collars. Survival in the pond at Critz was 73% overall, with significant differences …
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Habitat Selection of Gulf-Strain Striped Bass, <i>Morone saxatilis</i>: Relationships to Dynamic Abiotic Environmental Characteristics Within the Biloxi River, Mississippi
… variable abiotic environmental characteristics (water temperature, dissolved oxygen (DO), salinity, specific conductivity, and pH) in the Biloxi River, MS system. Juvenile hatchery-reared and feral adult Gulf-strain Striped Bass were acoustically-tagged and continuously monitored via active and …
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Experimental investigation of U-Pipe evacuated tube solar collector: thermal performance enhancement methodology
… media showed U-pipe ETC achieved higher peak water temperatures, maximum of 31⁰C, than that of heat pipe, maximum 29⁰C, resulting in 13% efficiency enhancement of U-pipe ETC compared with HPETC. The results also showed more rapid heating/cooling in the U-pipe setup. To further enhance the …
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Bioenergetics of Walleye in Lake Oahe, South Dakota
… gill nets were set at three depths in the water column (bottom, suspended, and surface) from May through September, 1994 to determine the effect of gill net placement on catch rates of walleyes. Catch per unit effort of walleyes was greater in bottom nets during July (5.2/net-h) than any …
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Distributions of <i>Euphausia Superba</i>, <i>Euphausia Crystallorophias</i>, and <i>Pleuragramma Antarcticum</i> with Correlations to Environmental Variables in the Western Ross Sea, Antarctica
… shelf break and prefer deep areas overlying warm water at depth, slow surface speeds, and proximity to the shelf break. Within this habitat, krill biomass is associated with deeper mixed layers. Crystal krill and Antarctic silverfish are concentrated in Terra Nova Bay and prefer southwesterly …
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