Fig. 2

Length frequency histogram for Prussian carp sampled in Saskatchewan lakes. (A) Stockwell Lake 2019; (B) Stockwell Lake 2021; and (C) Lake Diefenbaker 2021. Note the different scale on the y axis for panel (C), reflecting reduced capture frequency in Lake Diefenbaker compared to Stockwell Lake. Grey blocks with question marks on panels (B) and (C) represent size ranges that contained hundreds to thousands of fish, but only a small subsample was measured. A true size frequency could not be represented, but fish in these size ranges were very abundant and would have very high relative frequency values