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Fig. 3 | BMC Evolutionary Biology

Fig. 3

From: A pleiotropic interaction between vision loss and hypermelanism in Astyanax mexicanus cave x surface hybrids

Fig. 3

Hypermelanic fish harbor significant morphological abnormalities associated with their structural eye. Average eye size was quantified as orbital area (mm2), eyeball area (mm2), and pupil area (mm2) in n = 10 hypermelanic and n = 10 surface fish using the ‘polygon selection’ and ‘measurement’ tools in ImageJ. Hypermelanic fish exhibit significantly smaller eyes across all three metrics compared to surface fish (***p < 0.0001)

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