Supplementary material

Figure S1. Impact pathway adapted from Rogissart et al. (2023).

Figure S2. Radar of impacts adapted from Rogissart et al. (2023).

Figure S3. A) Total size-at-age (cm; year) of whitefish from Lake Geneva in 1950 and 1982 (Dottrens, 1950; Champigneulle et al., 1983). B) Evolution of zooplankton biovolume (ml/m²) in Lake Geneva (adapted from Champigneulle and Caudron, 2013; data from SOERE SI-OLA; Rimet et al., 2020).

Figure S4. A) Number of annual and monthly visitors to Thonon’s Fishing and Lake Ecomuseum (Eco-musée de la pêche et du lac) in Thonon-les-Bains, France, dedicated to preserving the memory and historical heritage of fishing. The dashed line represents the annual average from 1997 to 2023. B) Boxplot shows the number of visitors from 1997 to 2023 (data from Thonon-les-Bains, France, town hall). The museum welcomes both individual visitors and groups with limited individual access during the summer season, from June to the end of September.

Table S1. Vector of impacts adapted from Rogissart et al. (2023).

Table S2. Whitefish stocking and assessment of ‘Pacage lacustre’ contributions in Lake Geneva and Lake Bourget using marking methods by cauterising the adipose fin (ad. fin.) and fluoromarking with Alizarin Red S (ARS) (Champigneulle and Gerdeaux, 1992; Champigneulle and Cachera, 2003, 2008).

© H. Rogissart et al., Published by EDP Sciences, 2024