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This SSP project resulted in production of a thesis: Differences in oxygen consumption and critical oxygen levels of five stream fishes. Metabolic rate represents an integrated measure of a fish's physiology, particularly as it relates to stressors. A metric that is commonly used to determine the hypoxia tolerance of fishes is the determination of animal oxygen consumption rate (MO2), which is thought to reflect the ability of an organism to extract oxygen from the environment to maintain routine metabolic rate as dissolved oxygen (DO) decreases. We used respirometry to quantify the influence of two abiotic factors as potential stressors on stream fishes: temperature and dissolved oxygen. We determined standard...
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Upland pine ecosystems in USFWS Region 4 can support many trust species, but management is often directed at only a single species. At Piedmont NWR in central Georgia, management is focused on the Red-cockaded Woodpecker, but several other species (including Bachman’s Sparrow and Northern Bobwhite) could be benefited by slight alterations to management (e.g., more frequent burning or smaller burn units). We will build habitat use models using remotely sensed data and existing information on species occurrence at Piedmont NWR to determine how each of these species responds to management related to prescribed burning. We will then estimate how well these models perform both at Piedmont NWR (using newly collected groundtruthing...
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With the onset and advance of whitenose syndrome (WNS) across USFWS Regions 2-6 managers realized that then current Indiana bat presence and absence survey guidelines were likely insufficient due to population declines. The objectives of this study are: 1. Continue to test automated bat identification software following USFWS and USGS jointlydeveloped protocols and standards as submitted to USFWS over the study period and report findings 2. Establish and operate zero-crossing, frequency division survey sites in representative upland, riparian and field-edge habitat in areas with recent past (since advent of WNS) or currently known Indiana bat maternity colonies in KY, TN, VA, IN and NY. 3. Establish and operate...
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The overall goal of this SSP project was to evaluate the exposure and toxicological effects of contaminant stressors in the water and sediment of the Clinch River in areas of high mussel decline in Virginia and in areas of high abundance and recruitment in Virginia and Tennessee. The investigation also included an assessment of major tributary streams with varied histories of degradation, recovery and disturbance. The specific objectives of this project were to: 1. Integrate existing data sets on mussel populations, NPDES discharges, mining and other energy permitted activities, pesticide use, and land use. 2. Using passive sampling devices, measure water concentrations of a suite of polar and non-polar organic...
    map background search result map search result map Dissolved Oxygen Requirements for Freshwater Mussels Phase 1: Development of Test Systems and Experimental Protocols Endangered Freshwater Mussel Declines in the Clinch River: An in situ Assessment of Water Quality Stressors in the Watershed Survey of Dan and Roanoke River Drainages in North Carolina and Virginia for a Potentially New Species of Unionid Mussel Dissolved Oxygen Requirements for Freshwater Mussels Phase 1: Development of Test Systems and Experimental Protocols Survey of Dan and Roanoke River Drainages in North Carolina and Virginia for a Potentially New Species of Unionid Mussel Endangered Freshwater Mussel Declines in the Clinch River: An in situ Assessment of Water Quality Stressors in the Watershed