Multibeam and sidescan sonar were collected for a total of 15 sites in the North Arm, Maxwell Bay, and St. Albans Bay of Lake Minnetonka, Minnesota, to determine whether hydroacoustics could be used in turbid rivers and lakes as a method of rapid detection for invasive zebra mussel (Dreissena polymorpha) infestations. Hydroacoustic data were collected in June, August, and the end of September, 2022 at all 15 sites. This dataset is composed of bathymetry in the form of digital elevation models and 3D point cloud (in the form of XYZ text file), sidescan sonar image mosaics, and underwater video still images for assessing the detection of Dreissenids using hydroacoustics and underwater video for habitat.

Positive and negative dreissenid mussel DNA quantitiative PCR results from environmental DNA water samples collected in Montana, Wisconsin and Minnesota to assess if environmental DNA can extend the seasonal window for dreissenid mussel early detection.

Positive and negative dreissenid mussel DNA quantitiative PCR results from environmental DNA water samples collected in Montana, Wisconsin and Minnesota to assess if environmental DNA can extend the seasonal window for dreissenid mussel early detection.

A systematic sampling design was developed to sample mussels in Upper Mississippi River navigation Pools 3, 5, 6, 8, 13 and 18. Hydrologically-enforced buffers were created at a hierarchy of scales to better determine the extent of influence on mussel population assemblages. Buffers were generated using a radii of 10 meters from the quadrat site point. Several landscape metrics related to the buffer shape, underlying water depth at several modeled river discharges, aquatic vegetation presence, river training structure presence, topographic position, aquatic area classification, adjacent land use types, and wind fetch magnitude were then calculated to help assess which of these metrics/indices are predictive of the distribution, abundance, diversity, and recruitment of native mussels across these six pools in the Upper Mississippi River.

A systematic sampling design was developed to sample mussels in Upper Mississippi River navigation Pools 3, 5, 6, 8, 13 and 18. Hydrologically-enforced buffers were created at a hierarchy of scales to better determine the extent of influence on mussel population assemblages. Buffers were generated using a radii of 100 meters from the quadrat site point. Several landcape metrics related to the buffer shape, underlying water depth at several modeled river discharges, aquatic vegetation presence, river training structure presence, topographic position, aquatic area classification, adjacent land use types, and wind fetch magnitude were then calculated to help assess which of these metrics/indices are predictive of the distribution, abundance, diversity, and recruitment of native mussels across these six pools in the Upper Mississippi River.

A systematic sampling design was developed to sample mussels in Upper Mississippi River navigation Pools 3, 5, 6, 8, 13 and 18. Hydrologically-enforced buffers were created at a hierarchy of scales to better determine the extent of influence on mussel population assemblages. Buffers were generated using a radii of 500 meters from the quadrat site point. Several landcape metrics related to the buffer shape, underlying water depth at several modeled river discharges, aquatic vegetation presence, river training structure presence, topographic position, aquatic area classification, adjacent land use types, and wind fetch magnitude were then calculated to help assess which of these metrics/indices are predictive of the distribution, abundance, diversity, and recruitment of native mussels across these six pools in the Upper Mississippi River.

A systematic sampling design was developed to sample mussels in Upper Mississippi River navigation Pools 3, 5, 6, 8, 13 and 18. Hydrologically-enforced buffers were created at a hierarchy of scales to better determine the extent of influence on mussel population assemblages. Buffers were generated using a radii of 1000 meters from the quadrat site point. Several landcape metrics related to the buffer shape, underlying water depth at several modeled river discharges, aquatic vegetation presence, river training structure presence, topographic position, aquatic area classification, adjacent land use types, and wind fetch magnitude were then calculated to help assess which of these metrics/indices are predictive of the distribution, abundance, diversity, and recruitment of native mussels across these six pools in the Upper Mississippi River.

Data are included for two types of field surveys conducted for freshwater mussels throughout the Susquehanna River Basin (and one site in the Potomac River Basin) in the Mid-Atlantic region of the United States from 2008-2010. Timed search (qualitative) surveys were conducted in consecutive ~200 meter sections of river (at least 8 in each stream). The number of mussels of each species and associated search time were recorded for each survey section to determine a catch per unit effort (CPUE; number of individuals found per person hour). Within qualitatively surveyed areas, one ~200 meter section of stream was selected in which to conduct quantitative surveys to estimate mussel abundance, assess presence of juvenile mussels, and quantify population demographics. At each survey site, a subset of ~30 Elliptio complanata was haphazardly selected and retained for shell thin-sectioning and age determination. Two sites (Pine Creek and Buffalo Creek) were resurveyed both qualitatively and quantitatively in 2014 and 2015 after experimental re-introduction of the American eel (Anguilla rostrata), a documented host fish for E. complanata.

Data are included for two types of field surveys conducted for freshwater mussels throughout the Susquehanna River Basin (and one site in the Potomac River Basin) in the Mid-Atlantic region of the United States from 2008-2010. Timed search (qualitative) surveys were conducted in consecutive ~200 meter sections of river (at least 8 in each stream). The number of mussels of each species and associated search time were recorded for each survey section to determine a catch per unit effort (CPUE; number of individuals found per person hour). Within qualitatively surveyed areas, one ~200 meter section of stream was selected in which to conduct quantitative surveys to estimate mussel abundance, assess presence of juvenile mussels, and quantify population demographics. At each survey site, a subset of ~30 Elliptio complanata was haphazardly selected and retained for shell thin-sectioning and age determination. Two sites (Pine Creek and Buffalo Creek) were resurveyed both qualitatively and quantitatively in 2014 and 2015 after experimental re-introduction of the American eel (Anguilla rostrata), a documented host fish for E. complanata.

We conducted large-scale systematic surveys for native mussels across six reaches of the upper Mississippi River. In each reach, divers placed two 0.25 square meter quadrat frames on the river bottom. The duplicate quadrats, which were placed 10 m apart in an upstream to downstream direction, were used to increase the area sampled at each site and increase the effectiveness of this cluster design. Divers excavated substrates to a depth of about 15 cm and placed material into a 6 mm mesh bag. Mussels were identified to species, aged via external annuli, measured for shell length, and sexed (in species with external sexual dimorphism).