Regression analysis of the length-weight relationships for 17 common European fish in rivers in the Czech Republic

Length-weight relationships (LWRs) are useful for calculating weight based on measurements of length. Here we provide LWRs 17 species fish from the rivers Vltava and Elbe in Czech Republic, Central Europe. The samples were collected by electrofishing May 2016 to August 2019. There far fewer riverine than lotic fish. All significant with r2 values ranging 0.99 European barbel (Barbus barbus) 0.95 bullhead (Cottus gobio) estimated b 2.93 common dace (Leuciscus leuciscus) 3.26 non-native round goby (Neogobius melanostomus). These results increase data environments provides a good tool managing fisheries future studies.