Global ETD Search
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Showing 1 to 5 of 5 for “"Etheostoma fonticola"”.
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Effects of Turbidity on Anti-Predator Response and Foraging Behavior in the Fountain Darter, Etheostoma fonticola
… The federally endangered fountain darter (Etheostoma fonticola) is an important species for investigating the impacts of turbidity on behavior. Etheostoma fonticola is endemic to the clear, spring-fed waters of the San Marcos and Comal Rivers. These rivers are currently subject to a number …
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Mating behavior and the effects of turbidity on preferences for size in the fountain darter, Etheostoma fonticola
… well as mating preferences. The fountain darter, Etheostoma fonticola, is federally endangered making it an especially important species for examining the effects of turbidity on social behavior. Etheostoma fonticola is endemic to only two clear, spring-fed rivers in central Texas that are …
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Understanding key factors influencing habitat quality for the endangered fountain darter (Etheostoma fonticola) in the Comal River.
The research in this thesis was divided into 3 main studies that took place in Landa Lake: water column, sediment, and plant nutrient analyses, an herbivory and soil fertility experiment, and a spatial study of diel dissolved oxygen dynamics. Nutrient data were collected via water samples, nutrient …
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Establishing Patterns in Vegetation Associations of the Fountain Darter Etheostoma fonticola in the San Marcos and Comal Rivers of Texas
… and fish communities. The Fountain Darter Etheostoma fonticola, found only in spring systems of the San Marcos and Comal rivers in central Texas, is reported to associate with vegetation for feeding, reproduction, and refuge. Descriptions of associations with vegetation range from preferred …
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Exotic Armored Catfishes in Texas: Reproductive Biology, and Effects of Foraging on Egg Survival of Native Fishes (Etheostoma fonticola, Endangered and Dionda diaboli, Threatened)
… Texas fishes (the endangered fountain darter, Etheostoma fonticola, and the threatened Devils River minnow, Dionda diaboli). Based on the oocyte diameters and estimated mean fecundity (2,109) of the exotics, the Hypostomus population in the San Marcos River is reproducing as well in their new …