An Evaluation of Benthic Macroinvertebrate Community Diversity Following Construction at RiverScape Metropark
Madison Spooner Johnson, Meaghan Lees Lightfoot, Gretchen M Lozowski, Amanda R. Ratliff
The goal of this project is to analyze how the macroinvertebrate community has changed over a period of two years following the construction of a kayak chute at RiverScape MetroPark. Dr. Kavanaugh’s river research laboratory took kick net, sweep net, and Hester-Dendy samples in the Great Miami River in the fall of 2017. These samples were collected both on and directly downstream from the kayak chute that was constructed a few months prior in the spring of 2017. The 2017 samples indicated that the macroinvertebrate community rated “poor” according to the composite Macroinvertebrate Aggregated Index for Streams (MAIS) diversity index. In order to determine if the macroinvertebrate community has improved since the kayak chute was constructed, a team of river researchers collected kick net, sweep net, and Hester-Dendy samples in the fall of 2019 in the same locations. The organisms from these samples were sorted and identified, then characterized based on total number of taxa, abundance of individuals in each taxon. We predicted that the community would exhibit significantly improved biodiversity according to the composite of metrics used in the MAIS and other biodiversity indices due to the length of time that has passed allowing macroinvertebrate populations to recolonize the areas following the initial disturbance. The outcome of this project will be significant because it will provide insight into how benthic macroinvertebrates were affected by the construction of a major in-stream structure, and their ability to recover from the disturbance.
Jeffrey L. Kavanaugh
Primary Advisor's Department
Stander Symposium project, College of Arts and Sciences
United Nations Sustainable Development Goals
Life Below Water; Sustainable Cities and Communities
"An Evaluation of Benthic Macroinvertebrate Community Diversity Following Construction at RiverScape Metropark" (2020). Stander Symposium Projects. 1777.