caa a22 4500 445894121 CHVBK 20180317145626.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s10750-011-0820-3 doi (NATIONALLICENCE)springer-10.1007/s10750-011-0820-3 Invasive carp and prey community composition disrupt trophic cascades in eutrophic ponds [Elektronische Daten] [David Wahl, Matthew Wolfe, Victor Santucci Jr., Jonathan Freedman] The role of trophic cascades in structuring freshwater communities has been extensively studied. Most of this work, however, has been conducted in oligotrophic northern lakes that contain highly vulnerable cyprinid prey: aquatic communities where trophic interactions are likely to be stronger than in many other systems. Fewer studies have been conducted in eutrophic systems or have examined the bottom-up effects of benthivorous fishes, and none have directly compared these effects to those of piscivores on ecosystem structure and function. We conducted enclosure experiments in eutrophic ponds to examine trophic effects of invasive benthivores (common carp—Cyprinus carpio L.), native piscivores (largemouth bass—Micropterus salmoides [Lacepède]), and their interactions with common centrarchid prey with well-developed anti-predatory behaviors (age-1 bluegill—Lepomis macrochirus Rafinesque and young-of-year largemouth bass). At the end of the 60-day experiment, common carp had strong bottom-up effects that increased total phosphorus and turbidity while decreasing chlorophyll a biomass and macrophyte cover that resulted in decreased macroinvertebrate biomass and also decreased growth in both juvenile largemouth bass and bluegill. Piscivorous largemouth bass, however, did not affect the survival of either planktivorous juvenile largemouth bass or bluegill. Growth of juvenile largemouth bass was also not affected, but juvenile bluegill growth was significantly diminished, possibly due to nonconsumptive effects of predation. Our results suggest that, in a centrarchid-dominated eutrophic system, top-down effects of predators are overwhelmed by common carp-mediated bottom-up effects. These bottom-up effects strongly affected multiple trophic levels, thus altering aquatic community structure and function. Springer Science+Business Media B.V., 2011 Largemouth bass nationallicence Bluegill nationallicence Common carp nationallicence Top-down nationallicence Bottom-up nationallicence Nonconsumptive predation nationallicence Wahl David Kaskaskia Biological Station, Illinois Natural History Survey, 1235 CR 1000N, 61951, Sullivan, IL, USA aut Wolfe Matthew Kaskaskia Biological Station, Illinois Natural History Survey, 1235 CR 1000N, 61951, Sullivan, IL, USA aut Santucci Jr. Victor Illinois Department of Natural Resources, Office of Resource Conservation, Division of Fisheries, 8916 Wilmot Road, 60081, Spring Grove, IL, USA aut Freedman Jonathan Kaskaskia Biological Station, Illinois Natural History Survey, 1235 CR 1000N, 61951, Sullivan, IL, USA aut Hydrobiologia Springer Netherlands 678/1(2011-12-01), 49-63 0018-8158 678:1<49 2011 678 10750 https://doi.org/10.1007/s10750-011-0820-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10750-011-0820-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wahl David Kaskaskia Biological Station, Illinois Natural History Survey, 1235 CR 1000N, 61951, Sullivan, IL, USA aut NATIONALLICENCE 700 1- Wolfe Matthew Kaskaskia Biological Station, Illinois Natural History Survey, 1235 CR 1000N, 61951, Sullivan, IL, USA aut NATIONALLICENCE 700 1- Santucci Jr Victor Illinois Department of Natural Resources, Office of Resource Conservation, Division of Fisheries, 8916 Wilmot Road, 60081, Spring Grove, IL, USA aut NATIONALLICENCE 700 1- Freedman Jonathan Kaskaskia Biological Station, Illinois Natural History Survey, 1235 CR 1000N, 61951, Sullivan, IL, USA aut NATIONALLICENCE 773 0- Hydrobiologia Springer Netherlands 678/1(2011-12-01), 49-63 0018-8158 678:1<49 2011 678 10750 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer