Replication data for: Allochrony as a potential driver for reproductive isolation in adaptive radiations of European whitefish ecomorphs

The dataset contains biological, ecological and genetic data from European whitefish collected from 2 lake localities situated on the Finnmarksvidda highland plateau from 2016-2017. Fish sampling was carried out after standard protocols using multimesh gillnets in littoral, pelagic and profundal habitats. Parameters morphotype of whitefish, habitat, length, weight, sex, maturation and gonad weight. The prime focus is on reproductive isolation mechanisms.