Filters: Tags: Methods and techniques (X)9 results (114ms)
Advancing the tools of freshwater mussel conservation: determining the relative sensitivity of in vitro and in vivo propagated juveniles
Adaptation and establishment of microchemical methods to analyze elemental patterns in calcified structures of sturgeon for determining origins and movements of freshwater sturgeon in the Mississippi and Missouri river basins
Products for this SSP project included data and development of methods.
This SSP project resulted in three publications focused on production and availabilty of seeds for waterfowl.
Augment and expand existing endangered and species of concern mussel populations in the upper Tennessee and Cumberland River systems, Tennessee
This SSP project produced a Final Report and two publications. Carey, C.S., J.W. Jones, R.S. Butler, E.M. Hallerman. 2015. Restoring the endangered oyster mussel (Epioblasma capsaeformis) to the upper Clinch River, Virginia: an evaluation of population restoration techniques. Restoration Ecology. DOI: 10.1111/rec.12195. From 2005 to 2011, the federally endangered freshwater mussel Epioblasma capsaeformis (oyster mussel) was reintroduced at three sites in the upper Clinch River, Virginia, using four release techniques. These release techniques were (1) translocation of adults (site 1, n=1418), (2) release of laboratory-propagated sub-adults (site 1, n=2851), (3) release of 8-week-old laboratory-propagated juveniles...
One of the most diverse freshwater mussel assemblages in the world once occurred in the Cumberland and Tennessee Rivers. Several of these species are now extinct; others linger on as relic, nonreproducing populations, and populations of the remaining species have also declined. Although many factors contributed to the decline of mussels, habitat loss from impoundments and poor water quality in tailwaters have been major causes. Recently, the Tennessee Valley Authority (TVA) initiated a major program to improve water quality in the tailwaters by maintaining minimum flows and by oxygenating discharged water. This program has resulted in significant improvements in water quality. These improvements have resulted in...
Software Testing and Level of Effort Determination to Inform Indiana Bat and Northern Long-eared Bat Acoustic Survey Guidelines and Pilot Assessment of Activity Correlates Indicative of Gray Bat, Little Brown Bat and Tri-colored Bat Status
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...
Developing detection probabilities in flowing water environments to improve environmental DNA (eDNA) surveys
Clarifying taxonomic uncertainty for three freshwater mussels listed or considered for listing under ESA, Fuzzy Pigtoe, Oval Pigtoe, and Rayed Creekshell
This SSP project produced three publications and an associated dataset.
Ratooning the early maturing rice variety "Spring" as a waterfowl management practice in the Mississippi Alluvial Valley (MAV)
There are no reports available for this SSP project at this time.