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How to Improve the Biological Quality of Urban Streams? Reviewing the Effect of Hydromorphological Alterations and Rehabilitation Measures on Benthic Invertebrates

1
Department of Civil Engineering, Faculty of Sciences and Technology, University of Coimbra, 3030-790 Coimbra, Portugal
2
INESCC-Institute for Systems Engineering & Computers at Coimbra, 3030-290 Coimbra, Portugal
3
MARE, Marine and Environmental Sciences Centre, Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, 3000-456 Coimbra, Portugal
*
Author to whom correspondence should be addressed.
Academic Editor: Bommanna Krishnappan
Water 2021, 13(15), 2087; https://doi.org/10.3390/w13152087
Received: 12 June 2021 / Revised: 24 July 2021 / Accepted: 26 July 2021 / Published: 30 July 2021
(This article belongs to the Special Issue The Ecological Assessment of Rivers and Estuaries: Present and Future)
Urbanisation alters the natural hydromorphology of streams, affecting aquatic communities and ecological quality. Increasing efforts have been put into the rehabilitation of urban streams due to their importance for urban sustainability. Despite these efforts, many projects fail to achieve the improvement of aquatic communities. This study aims to provide specific recommendations to enhance the biological rehabilitation of urban streams by reviewing: (i) the impacts of urbanisation and climate change on urban stream hydrology, (ii) the responses of invertebrate assemblages to alterations in the hydrology and morphology of streams, and (iii) the hydromorphological rehabilitation measures applied to streams and their effect on invertebrate communities. This review found that commonly employed measures of habitat heterogeneity enhancement (such as the addition of meanders, boulders, and artificial riffles) are not enough to improve invertebrate communities. On the other hand, the most effective measures are those leading to the re-establishment of natural hydrological patterns and good water quality. Ultimately, an integrated ecohydrological approach that considers the entire watershed and its interactions between ecosystems and anthropological activities is the key to managing and rehabilitating urban streams. View Full-Text
Keywords: urban water management; ecological assessment; river restoration; ecohydrology; aquatic habitats; hydrology; climate change urban water management; ecological assessment; river restoration; ecohydrology; aquatic habitats; hydrology; climate change
MDPI and ACS Style

Zerega, A.; Simões, N.E.; Feio, M.J. How to Improve the Biological Quality of Urban Streams? Reviewing the Effect of Hydromorphological Alterations and Rehabilitation Measures on Benthic Invertebrates. Water 2021, 13, 2087. https://doi.org/10.3390/w13152087

AMA Style

Zerega A, Simões NE, Feio MJ. How to Improve the Biological Quality of Urban Streams? Reviewing the Effect of Hydromorphological Alterations and Rehabilitation Measures on Benthic Invertebrates. Water. 2021; 13(15):2087. https://doi.org/10.3390/w13152087

Chicago/Turabian Style

Zerega, Andreina, Nuno Eduardo Simões, and Maria João Feio. 2021. "How to Improve the Biological Quality of Urban Streams? Reviewing the Effect of Hydromorphological Alterations and Rehabilitation Measures on Benthic Invertebrates" Water 13, no. 15: 2087. https://doi.org/10.3390/w13152087

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