Abstract
AbstractThis project tested a public-science approach to the assessment of freshwater habitat quality via simple invertebrate sampling. We combined a mobile phone application and simple instruction to children to sample 50 ponds in Central Czechia, and we analyzed the data using a standard ecological statistics approach. Despite the limitation in scope and taxonomic precision, our data revealed the same patterns as academic studies of the same topic. Specifically, we conclude that the main cause of invertebrate community decline is fish overstocking, while diverse invertebrate communities require aquatic macrophytes. Pollution detectable by children has an effect on invertebrate community structure, but a different effect than fish has, and not as statistically robust. Importantly, almost all large ponds were found overstocked with fish; therefore, they support not more diversity than small ponds, but less, and serve as ecological traps. Our findings suggest that pond conservation should focus primarily on the restoration of aquatic vegetation, and that the most effective approach will be the removal of excessive fish.
Publisher
Cold Spring Harbor Laboratory
Reference11 articles.
1. Abel, P.D. (1996). Water pollution biology. CRC Press.
2. Gaufin, A.R. (1973). Use of aquatic invertebrates in the assessment of water quality. ASTM International.
3. Impact of common carp Cyprinus carpio on aquatic communities: direct trophic effects versus habitat deterioration;Fundamental and Applied Limnology,2011
4. Peretyatko, A. , Teissier, S. , De Backer, S. , and Triest, L. (2009). “Restoration potential of biomanipulation for eutrophic peri-urban ponds: the role of zooplankton size and submerged macrophyte cover,” in Pond Conservation in Europe. Springer, Dordrecht), 281–291.
5. A review of grass carp use for aquatic weed control and its impact on water bodies;Journal of Aquatic Plant Management,2006