2026-10-11T23:47:33Z https://api.figshare.com/v2/oai

oai:figshare.com:article/34025995 2026-09-29T17:27:17Z category_24 category_272 category_39 category_62 category_69 category_106 portal_5 item_type_1 month_year_09_2026

<p>Map of the Upper Mississippi River (UMR) study area.</p> Edward M. Sterling (25138243) Yu-Chun Kao (4638922) Benjamin J. Marcek (25138246) Wesley W. Bouska (25138249) Mark W. Fritts (24725632) Cody A. Henderson (25138252) Katharine Lieder (25138255) Joseph W. Amundson (25138258) Bryon G. Rochon (25138261) Emily K. Pherigo (25138264) Evolutionary Biology Environmental Sciences not elsewhere classified Ecology Marine Biology Inorganic Chemistry Science Policy used empirical data silver carp management silver carp demography silver carp across silver carp (< relatively low within reasonable spatial scale random sampling design ongoing management efforts hypophthalmichthys molitrix </ growth varied within div >< p upper mississippi river several adjacent locations river system fragmented mississippi river confluence among locations fragmented meaningful monitoring units estimate demographic baselines measure population changes assessing population change differed among mmus similar demographic characteristics open river 14 locations independent monitoring demographic variability demographic rates mmus serve mmus represent mmus ), four mmus study area source populations sink populations sample area pool 26 pool 18 physical structures observed variability economic threats comprehensive baseline body condition baseline estimates <p>Sampling locations were between Lock and Dam 17 (L&D 17; the furthest upstream extent of Pool 18) and the confluence of the Ohio and Mississippi rivers. Sampling sites were distributed within each pool of the UMR between L&D 17 and L&D 26. In the un-impounded portion of the UMR, six large tributary confluences: the Missouri, Meramec, Kaskaskia, Big Muddy, Headwater Diversion Channel, and Ohio rivers were targeted for sampling. The map was generated using Esri ArcGIS Pro version 3.5.6. Map layers for state boundaries and major river lines within the USA were obtained from U.S. Geological Survey’s National Map public-domain geospatial database (<a href="https://www.usgs.gov/programs/" target="_blank">https://www.usgs.gov/programs/</a>). The map layer for Lock and Dam locations was obtained from U.S. Army Corps of Engineers Geospatial Open Data (<a href="https://geospatial-usace.opendata.arcgis.com/" target="_blank">https://geospatial-usace.opendata.arcgis.com/</a>), which are also in the public domain. The map layer for political boundaries of Mexico and Canada was obtained from geoBoundaries (<a href="https://www.geoboundaries.org/" target="_blank">https://www.geoboundaries.org/</a>), licensed under CC BY 4.0.</p> 2026-09-29T17:27:15Z Image Figure 10.1371/journal.pone.0359517.g001 https://figshare.com/articles/figure/_p_Map_of_the_Upper_Mississippi_River_UMR_study_area_p_/34025995 CC BY 4.0