Articles | Volume 20, issue 10
https://doi.org/10.5194/hess-20-4323-2016
https://doi.org/10.5194/hess-20-4323-2016
Research article
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25 Oct 2016
Research article | Highlight paper |  | 25 Oct 2016

Influence of groundwater on distribution of dwarf wedgemussels (Alasmidonta heterodon) in the upper reaches of the Delaware River, northeastern USA

Donald O. Rosenberry, Martin A. Briggs, Emily B. Voytek, and John W. Lane

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Short summary
The remaining populations of the endangered dwarf wedgemussel (DWM) (Alasmidonta heterodon) in the upper Delaware River, northeastern USA, were thought to be located in areas of substantial groundwater discharge to the river. Physical, thermal, and geophysical methods applied at several spatial scales indicate that DWM are located within or directly downstream of areas of substantial groundwater discharge to the river. DWM may depend on groundwater discharge for their survival.