The accompanying csv file ("all data final.csv") gives data on growth when reared at ad lib food conditions in the laboratory at different temperatures ("Temperature.C") from neonate ("Size.start", in mm) to 
mature stage ("Size.end", in mm) in individual Daphnia magna originating from different genotypes ("Genotype") and populations ("Population"). Example images of daphnia are given in "example_image_mature.tif" 
and "example_image_neonate.tif".