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Response of Freshwater Mussel Recruitment to Hydrological Changes in a Eutrophic Floodplain Lake by Ćmiel, Adam M.; Strużyński, Andrzej; Wyrębek, Maciej; Lipińska, Anna M.; Zając, Katarzyna; Zając, Tadeusz is a Environmental Science article available to read on EtoBox.

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Although eutrophication of freshwaters is a natural process, the human impact often leads to inland waters becoming overloaded with nutrients, impoverishing many valuable and vanishing habitats, such as floodplain lakes. These changes need to be reversed if the occurrence of endangered aquatic species is to be restored. In this paper we analyse the impact of a change in the water regime of a naturally eutrophic floodplain lake, which harbours a large diversity of Unionidae (large freshwater mussels), a globally threatened taxonomic group that provides important ecosystem functions and services. We found that a slight increase in the discharge from this waterbody, following the construction of an additional outflow pipe, positively influenced recruitment in three of the five mussel species inhabiting the lake. We also found that, after the construction of this additional outflow, the niches of juveniles of Anodonta cygnea and Unio spp. changed, revealing differences in their hydrological requirements. Our results suggest that, as in lotic habitats, complex hydraulic parameters are highly significant to unionid mussels in lentic conditions.

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Author

Ćmiel, Adam M.; Strużyński, Andrzej; Wyrębek, Maciej; Lipińska, Anna M.; Zając, Katarzyna; Zając, Tadeusz

Publisher

Elsevier Science; Elsevier ; Elsevier BV; Publons (ISSN 0048-9697)

Published

2019

Language

EN

Field

Environmental Science (Physical Sciences)