caa a22 4500 445890827 CHVBK 20180317145615.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s10750-011-0639-y doi (NATIONALLICENCE)springer-10.1007/s10750-011-0639-y Seasonal zooplankton dynamics in main channel and backwater habitats of the Upper Mississippi River [Elektronische Daten] [Robert Burdis, R. Hoxmeier] This study used stratified random sampling to examine the spatial and temporal distribution of zooplankton communities in a large floodplain river (Mississippi River, USA). Potential mechanisms controlling zooplankton abundance and community structure were considered. Main channel and backwater habitats included in this study differed between a turbid upper pool reach where aquatic macrophytes were sparse and a lower pool reach which was considerably less turbid and had extensive aquatic macrophyte coverage. Samples were collected monthly during the summer over a 2-year period and multivariate analysis was used to examine the spatial and temporal distribution of zooplankton. Significant differences were found in zooplankton density and community composition among habitats and reaches within the pool. Rotifers were the dominant taxa and seasonality was pronounced, with peak densities often occurring in late-spring. Community structure varied by habitat and reach, which suggests that water quality, physical habitat characteristics, presence of aquatic macrophytes, and zooplankton sources can all influence the zooplankton communities of the Upper Mississippi River. Characterization of the zooplankton communities provides a basis for understanding changes in the river ecosystem and examination of zooplankton communities among habitats provides insight into the mechanisms affecting zooplankton dynamics. Springer Science+Business Media B.V., 2011 Mississippi River nationallicence Rotifers nationallicence Zooplankton nationallicence Large floodplain river nationallicence Backwaters nationallicence Cladocerans nationallicence Burdis Robert Long Term Resource Monitoring Program, Minnesota Department of Natural Resources, 1801 S. Oak St., 55041, Lake City, MN, USA aut Hoxmeier R. Division of Fish and Wildlife, Minnesota Department of Natural Resources, 1801 S. Oak St., 55041, Lake City, MN, USA aut Hydrobiologia Springer Netherlands 667/1(2011-06-01), 69-87 0018-8158 667:1<69 2011 667 10750 https://doi.org/10.1007/s10750-011-0639-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10750-011-0639-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Burdis Robert Long Term Resource Monitoring Program, Minnesota Department of Natural Resources, 1801 S. Oak St., 55041, Lake City, MN, USA aut NATIONALLICENCE 700 1- Hoxmeier R. Division of Fish and Wildlife, Minnesota Department of Natural Resources, 1801 S. Oak St., 55041, Lake City, MN, USA aut NATIONALLICENCE 773 0- Hydrobiologia Springer Netherlands 667/1(2011-06-01), 69-87 0018-8158 667:1<69 2011 667 10750 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer