Author(s): Martin Schletterer; Patrick Holzapfel; Michael Paster; Zacharias Schahle; Hannes Zoschg; Christoph Hauer
Linked Author(s): Christoph Hauer
Keywords: No Keywords
Abstract: Artificial placement and/or management of spawning gravel is a well-established restoration practice in supply-limited river systems or rivers with anthropogenically induced high sediment transport capacity. Many studies have focused on the biological response to artificial gravel dumping by (i) counting spawners or (ii) monitoring hatching success. However, there is a lack of data on how the artificial gravel / reproduction sites develop based on upstream (fine) sediment supply and the given hydrological regime. At our case study site, pit-tagged gravel substrate was artificially deposited at suitable places of a large-scale restoration measure. The aim of these surveys was to quantify the erosion and deposition processes in the entire restoration area and to compare the data with the displacements of the pit- tagged substrate.
Year: 2024