2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
6/05/2017 | 10:15 AM - 10:30 AM | Sediment accumulation and bioaccumulation have no obvious effect on cummunity structure in urban detention ponds | 302A
Sediment accumulation and bioaccumulation have no obvious effect on cummunity structure in urban detention ponds
The invertebrate diversity in nine stormwater wet detention ponds (SWDPs) and eleven semi-natural small shallow lakes covering a large environmental gradient was compared to elucidate differences arising from anthropogenic substance loadings to the ponds. The invertebrates and the sediments of the ponds and shallow lakes were analyzed for copper, iron, zinc, cadmium, chromium, lead, aluminum, nickel and arsenic. Multivariate analyses showed that invertebrates in SWDPs and lakes differed with respect to bioaccumulation of these elements, as did the sediments, albeit to a lesser degree. However, the Detrended Correspondence Analysis and the TWINSPAN showed that the invertebrate populations of the ponds and lakes could not be distinguished, with the possible exception of highway ponds presenting a distinct sub-group of wet detention ponds. The SWDPs and shallow lakes studied seemed to constitute aquatic ecosystems of similar taxon richness and composition as did the 11 small and shallow lakes. This indicates that SWDPs, originally constructed for treatment and flood protection purposes, become aquatic environments in built-up areas which play a potentially important role for local biodiversity similar to that of natural small and shallow lakes
- C09 Wetland Ecology
- C03 Invertebrates
- S02 Urban streams, aquatic ecology, and stormwater engineering: How do we encourage integration, opportunities and collaboration in an era of green infrastructure innovation?
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Presenters/Authors
Morten Lauge Pedersen
(), Aalborg University, mlp@civil.aau.dk;
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Diana Agnete Stephansen
(), Aalborg University, das@civil.aau.dk;
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Asbjørn Haaning Nielsen
(), Aalborg University, Denmark, ahn@civil.aau.dk;
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Jes Vollertsen
(), Aalborg University, jes@civil.aau.dk;
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