Molly Van Appledorn Allison Bast 20260420 vector digital data https://doi.org/10.5066/P13LZ2XB Large wood is an important part of ecosystem functions in rivers around the world, including serving as fish habitat, providing nutrient sources, and contributing to geomorphic processes. This dataset was produced to support the study of large wood dynamics in Pool 8 of the Upper Mississippi River System. The dataset contains 60 polygons located along shoreline of the main channel, side channels, backwaters, and impounded areas. It was developed based on the stratified random sampling design of the Upper Mississippi River Restoration program’s Long Term Resource Monitoring (LTRM) element fish component. The polygons result from buffering 500-meter long shoreline transects near daytime electrofishing locations, sampled by LTRM staff in 2020, by 8-meters to account for variation in shoreline location due to fluctuating water levels. The dataset is intended for use as study areas for inventorying large wood pieces. This dataset was developed for the purposes of mapping pieces of shoreline large wood as visually interpreted from remotely sensed data products within Navigation Pool 8 of the Upper Mississippi River. The 60 polygons therein are distributed based on the stratified random sampling design implemented by the Upper Mississippi River Restoration program's Long Term Resource Monitoring Element fisheries component. They represent sampling boundaries for mapping pieces of shoreline wood. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. 20230301 20230701 publication date Complete None planned -91.3115 -91.2094 43.8658 43.5834 ISO 19115 Topic Category environment inlandWaters USGS Thesaurus freshwater ecosystems aquatic biology USGS Metadata Identifier USGS:69330bd7d4be02765ea818a5 Common geographic areas United States None Navigation Pool 8 Upper Mississippi River There are no data access constraints associated with this dataset. There are no data use constraints associated with this dataset. Molly Van Appledorn USGS - MIDCONTINENT REGION Research Ecologist mailing and physical

Upper Midwest Environmental Sciences Center

2630 Fanta Reed Road

La Crosse WI 54603 608-783-6451 mvanappledorn@usgs.gov Molly Van Appledorn Nathan R DeJager Jason Rohweder 2018 dataset https://www.sciencebase.gov U.S. Geological Survey https://doi.org/10.5066/f7vd6xrt Janis J. Ruhser Benjamin C. Finley 2021 dataset https://www.sciencebase.gov U.S. Geological Survey https://doi.org/10.5066/p962vkr4 U.S. Army Corps of Engineers Upper Mississippi River Restoration Program Long Term Resource Monitoring 1995 tabular digital data https://umesc.usgs.gov/data_library/fisheries/fish1_query.shtml Visual spot checks completed. Data were spot checked for attribute accuracy: values fall within expected ranges and duplicates/omissions checked. Visual spot checks completed. Data were spot checked for logical accuracy: values fall within expected ranges and duplicates/omissions checked. Data are complete for Pool 8 of the Upper Mississippi River none none Upper Mississippi River Restoration Program Long Term Resource Monitoring 19950101 tabular digital data https://umesc.usgs.gov/data_library/fisheries/fish1_query.shtml Digital and/or Hardcopy 20200615 20201031 observed LTRMP Fisheries Dataset Locations of daytime electrofishing sites sampled in 2020 were mapped in ArcGIS. Each point was traced orthogonally to the nearest shoreline to mark the centroid of each study area polygon. Molly Van Appledorn Nathan R DeJager Jason Rohweder 2018 dataset https://www.sciencebase.gov U.S. Geological Survey https://doi.org/10.5066/f7vd6xrt Digital and/or Hardcopy 19720401 20110930 publication date UMRS Floodplain Inundation Attributes The navigation pool 8 UMRS Floodplain Inundation Attributes raster was used to define shorelines as the boundary of permanently wetted areas and potentially wetted areas. Janis J. Ruhser Benjamin C. Finley 20211004 dataset https://www.sciencebase.gov U.S. Geological Survey https://doi.org/10.5066/p962vkr4 Digital and/or Hardcopy 20200822 publication date UMRR LTRM 2020 Pool 8 Aerial Imagery Mosaic Served as a visual check for mapping shoreline boundaries XY coordinates for daytime electrofishing locations sampled by the Long Term Resource Monitoring program in 2020 were mapped in ArcGIS overlaying the Upper Mississippi River Restoration Long Term Resource Monitoring 2020 Pool 8 aerial imagery mosaic (Ruhser and Finley 2021) and the Upper Mississippi River System Inundation Attributes Pool 8 raster (Van Appledorn et al., 2018). Each point was traced orthogonally to the nearest shoreline, defined as the extent of the potentially wetted areas according to the inundation raster, to mark the centroid of each study area. The aerial image layer was used to verify shoreline locations. LTRMP Fisheries Dataset UMRS Floodplain Inundation Attributes UMRR LTRM 2020 Pool 8 Aerial Imagery Mosaic 20240322 From the centroids generated in Step 1, 500-meter transects were manually drawn in ArcGIS by tracing the shorelines, extending out 250 meters from each side of a centroid. 20240322 The transects were buffered by 8 meters using the Buffer geoprocessing tool in ArcGIS with the following parameter selections: side type was "full," end type was "round," method was "planar," and dissolve type was "no dissolve." In some cases, the buffering process resulted in the merging of some shoreline transects into a single polygon. In a new attribute table field, each resulting polygon was assigned a unique numerical identifier by adding the value of 1 to its FID. 20240322 Vector G-polygon 1 Universal Transverse Mercator 15 0.9996 -93.0 0.0 500000.0 0.0 coordinate pair 0.6096 0.6096 meters North_American_Datum_1983 GRS 1980 6378137.0 298.257222101 Shoreline_Sampling_Areas Shoreline sampling areas in Pool 8 Producer FID Internal feature number. Esri Sequential unique whole numbers that are automatically generated. Shape Feature geometry. Esri Coordinates defining the features. Shape_Leng Feature geometry. Esri Positive real numbers that are automatically generated. Shape_Area Area of feature in internal units squared. Esri Positive real numbers that are automatically generated. Area_ID Unique numerical identifier of sampling area polygon. Producer Defined 1 61 unitless 1 U.S. Geological Survey - ScienceBase mailing address

Denver Federal Center

Building 810

Mail Stop 302

Denver CO 80225 1-888-275-8747 sciencebase@usgs.gov There are no distribution limitations associated with this dataset. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Digital Data https://doi.org/10.5066/P13LZ2XB There are no fees associated with this dataset. 20260420 Molly Van Appledorn USGS - MIDCONTINENT REGION Research Ecologist mailing and physical

Upper Midwest Environmental Sciences Center

2630 Fanta Reed Road

La Crosse WI 54603 608-783-6451 mvanappledorn@usgs.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998