Fig. 6
From: Salmonid sensory system development is affected by climate change driven temperature increases
Onset (first segment at a given stage) and duration of each stage of canal morphogenesis (ending when last segment is observed at a stage) in two cranial lateral line canals for all three temperature treatments (red, + 4 °C; yellow, + 2; blue, + 0 °C [ambient]). (A) Supraorbital (SO) canal (associated with the nasal and frontal segments). (B) Preopercular-mandibular (PM) canal (associated with the dentary and anguloarticular segments). Onset of canal morphogenesis (Stage 2a) occurs at about the size at which swim up occurs (~ 21 mm SL) in all three temperature treatments. Canal morphogenesis progresses at an accelerated rate at higher temperatures such that more advanced stages of canal morphogenesis are reached in smaller fish at + 4 °C than at + 2 °C or + 0 °C (ambient).
