Figure 75 in Diversity, distribution and community composition of fish in perialpine lakes – "Projet Lac" synthesis report

Figure 75: Proportion of non-native species in the littoral shown by electrofishing. Native species are represented in grey. Upper panel shows proportion by abundance, lower panel proportion by biomass. Note that the high relative abundance and biomass of Salmo trutta in Poschiavo is uncertain. These were mainly juvenile trout that could not be confidently identified to species and were assumed to be S. trutta for the purpose of this comparison.