Figure 1From: Ontogenetic development of auditory sensitivity and sound production in the squeaker catfish Synodontis schoutedeniAuditory evoked potential audiograms of the size groups investigated. Mean hearing thresholds of the size groups XXS (N = 12), XS (N = 6), S (N = 6), M (N = 5), L (N = 4) and XL (N = 6) of Synodontis schoutedeni tested. Catfish pictures show representative specimens of group XXS (left) and XL (right) drawn in proportional scale for comparative purposes.Back to article page