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Showing 1 to 8 of 8 for “"bluegill population"”.
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The Influence of Population and Community Variables on Bluegill, Lepomis Macrochirus, Life Histories: Implications for Growth Rates, Timing-of-Maturation, and Population Size Structure
… are complex and can be shaped by myriad population- and community-level variables. I conducted a series of experiments to examine aspects of bluegill, Lepomis macrochirus, life histories in an attempt to quantify variables influencing growth and maturation rates of individuals, and to …
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Bluegill Seasonal Habitat Selection, Movement, and Relationship to Angler Locations in a South Dakota Glacial Lake
… full of research examining habitat selection of bluegills Lepomis macrochirus, most studies have utilized small (<150 mm) fish in laboratory or small pond experiments. Those few studies that have examined larger bluegills in natural systems have generally occurred over a relatively short time …
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Dynamics and distribution of Fishes Occupying a South Dakota Power Plant Cooling Reservoir
Distribution, population number, growth rate, and reproductive activities of walleyes (Stizostedion vitreum vitreum) were studied to evaluate the potential of the Big Stone Power Plant cooling reservoir as a source of walleye brood stock. In addition, dynamics and distribution of bluegill (Lepomis …
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An Evaluation of Relative Weight as an Indicator of Body Composition and Nutritional Status in Wild Fish
… the relationship of Wr to physiology in two bluegill Lepomis macrochirus populations over a year. I regressed tissue composition (percentages of lipid, protein and water) and organ indices (liver-, gonad-, and viscerosomatic indices) on Wr. The regression model had little explanatory power …
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The Effect of Grass Carp Introduction on Aquatic Vegetation and Existing Fish Populations in Two Small Prairie Lakes
… melas), yellow perch (Perea flavescens), and bluegill (Lepomis macrochirus), respectively. The biomass of northern pike (Esox lucius) was also high at 13.8 kg/hectare. A Proportional Stock Density (PSD) of 11 and Relative Weight (WK) of 117 indicated a relatively healthy bluegill population in …
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Bluegill Reproductive Characteristics in Nebraska Sandhill Lakes
Bluegill Lepomis macrochirus reproductive biology was evaluated in two Nebraska Sandhill lakes, 323-ha Pelican Lake in Cherry County and 38-ha Cozad Lake in Brown County, during 1998. Catch per unit effort of stock-length bluegills in trap nets did not differ between lakes (P=0.19). Proportional …
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Bluegill Reproductive Biology and Population Dynamics in Four South Dakota Impoundments
The bluegill Lepomis macrochirus is an important prey species and important sport fish. Therefore, knowledge of reproduction and subsequent recruitment is essential for fishery biologists. Bluegill are typically considered multiple spawners. Protracted reproduction is likely a response to various …
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Recruitment of Bluegill and Yellow Perch in Nebraska Sandhills Lakes: Integrating Multiple Life Stages
Bluegill Lepomis macrochirus and yellow perch Perca flavescens are important, native sport fishes to Nebraska Sandhills lakes. Recruitment dynamics of the fish populations within a given community will ultimately structure the fish communities. I conducted a multiple life-stage investigation of …