Data for: The Influence of Genome Composition and Temperature on the Hatching Success and Development of the Offspring of Allotriploid Cobitis (Pisces: Cobitidae) Females

This dataset contains experimental data on hatching success, offspring ploidy, larval morphology, and body length of offspring produced by triploid Cobitis females with different genome compositions. The experiments were conducted under three incubation temperatures (18°C, 22°C, and 28°C). Detailed descriptions of variables and file structure are provided in the accompanying README file. This work was supported by the National Science Centre, Poland, grant No. UMO-2021/41/B/NZ8/03231; title: Solving speciation mysteries based on a selected fish model