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Showing 1 to 12 of 12 for “"San Marcos River"”.
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The Amphibious Fungi of the San Marcos River
No abstract prepared.
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The Food Habits of Redbreast Sunfish in the San Marcos River, Texas
… redbreast sunfish, is a common sportfish in the San Marcos River, Texas. Since dietary analysis is an important step toward understanding the ecological role of a fish, data on the food habits of the redbreast sunfish in the San Marcos River were collected monthly from April, 1982 through August, …
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Macro and Micro Litter Accumulation in the San Marcos River San Marcos, Texas, USA
Litter accumulation in rivers is understudied in the United States and yet is a major problem that is becoming worse. Litter is the focus of recent management attention in urban river systems including the San Marcos River. The San Marcos River is primarily spring-fed by the Edwards Aquifer and …
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Assessment of Changes in the Aquatic Macrophyte Community in the Upper San Marcos River
No abstract prepared.
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Fish Community Structure and Water Quality Assessment (Index of Biotic Integrity) of the San Marcos River, Texas
A study 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 …
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Influence of Human Recreational Activities and Vegetative Characteristics on Waterbird Abundance
… abundance of waterbirds along a heavily used river, the San Marcos River, in central Texas. The abundance of waterbirds and human disturbance was estimated by conducting point counts for 20 minutes at 30 randomly determined locations along the San Marcos River. Measurement of riparian …
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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)
… 1. the reproductive biology of Hypostomus in the San Marcos River, Texas; and 2. the potential effect of the foraging activities of the exotic on the egg survival of two native central Texas fishes (the endangered fountain darter, Etheostoma fonticola, and the threatened Devils River minnow, …
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Texas State University's San Marcos Campus Edwards Aquifer Groundwater Use Trends and Untapped Water Conservation Opportunities
… is at the forefront of this challenge. The TXST San Marcos campus relies on the Edwards Aquifer, an environmentally sensitive and economically important water resource, for ~70% of their potable water supply and Spring Lake and the San Marcos River for non-potable water uses. The Edwards Aquifer …
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Predator Recognition and Avoidance in the San Marcos Salamander
… of effectiveness and efficiency. The San Marcos salamander (Eurycea nana) is a fully aquatic salamander endemic to the headwaters of the San Marcos River. Eurycea nana is subject to predation by a diverse community of native and nonnative fish predators. Despite the importance of …
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Social Demands and Geospatial Distributions of Urban Green Spaces and Blue Spaces
… three key issues: the carrying capacity of a riverine social-ecological system, the connectivity of urban green spaces for biodiversity enhancement, and the complex multi-scale spatial distribution of vegetation. I calculated the recreational carrying capacity of the upper San Marcos River by …
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The Story of Riverside
… photographs, and other memorabilia related to Riverside (now Sewell Park) mounted throughout thesis.