Mouth Size and Body Length Relations for Freshwater Fish Species

摘要

We estimated the relationships between total vertical, horizontal and mouth area with total length for seven fish species caught from Lake Volvi (Northern Greece) during September 2016-February 2017. All relationships were significantly allometric (P0.05) and were described by the power regressionwith r2 values ranging from 0.435 to 0.882. The establishment of such relationships is important for defining the ecological position of species in the food web, as well as for fishery management purposes.