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6/05/2017 | 2:30 PM - 2:45 PM | PLANKTONIC ALGAE ABUNDANCE AND DIVERSITY IN URBAN STORMWATER PONDS AND NATURAL SHALLOW LAKES | 306B

PLANKTONIC ALGAE ABUNDANCE AND DIVERSITY IN URBAN STORMWATER PONDS AND NATURAL SHALLOW LAKES

Several studies have provided evidence that stormwater ponds serve as habitats for fauna and flora, despite various hazards imposed by received pollutants. Planktonic algae are some of the organisms which successfully, and in many cases even excessively, inhabit stormwater ponds. The influence of different pollutant loads or pond construction parameters on phytoplankton abundance and diversity is not well examined yet. With this study we aimed to investigate if urban stormwater ponds constitute phytoplankton habitats comparable to those of natural lakes. Ponds from two geographic locations with similar climate conditions – Denmark and Canada, Peterborough – were selected to be compared. Natural shallow lakes in Denmark were chosen to compare natural and artificial water bodies. Sampling was carried out in May, July and September, 2014. The results have shown that stormwater ponds are at least as rich in phytoplankton taxa as natural shallow lakes. No clear relationship between phytoplankton diversity and physical, chemical parameters of the water bodies could be established, likely as a consequence of the number of biotic and abiotic factors acting together in the analyzed environments.

C08 Urban Ecology
C14 Hydroecology
C01 Algae & C24 Eutrophication

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Presenters/Authors

Greta Minelgaite (), Aalborg University, gm@civil.aau.dk;