J Environ Manage 2021 Oct 7;301:113898. Epub 2021 Oct 7.
Department of Bioscience and WATEC, Aarhus University, Vejlsøvej, Silkeborg, 8600, Denmark; Limnology Laboratory, Department of Biological Sciences and Centre for Ecosystem Research and Implementation, Middle East Technical University, Ankara, 06800, Turkey; Sino-Danish Centre for Education and Research (SDC), University of Chinese Academy of Sciences, 100049, Beijing, China; Institute of Marine Sciences, Middle East Technical University, 33731, Erdemli-Mersin, Turkey. Electronic address:
In shallow eutrophic lakes, submersed macrophytes are essential for maintaining a clear water state, and they are affected markedly by fishes directly through herbivory and indirectly by fish-invertebrate-periphyton complexity, a pathway that presently is not well understood in subtropical lakes but probably vital to lake managements. We conducted a mesocosm study involving benthic fish (Misgurnus anguillicaudatus), snails (Radix swinhoei) and submersed macrophyte (Vallisneria natans), aiming to examine whether benthic fish is detrimental to reestablishment of clear-water macrophyte-dominated state in eutrophic degraded lakes. In addition, we aimed to investigate the cascading effect that benthic fish might have on periphyton and phytoplankton and to what extent snails can alleviate this effect. Read More