Complex sentence: In adults the body is patterned with pale yellow spots, crescents and lines, markings becoming smaller and more profuse as the fish ages; the patterning begins in juveniles with sparse vertical bars and spots along the lateral line.
Split into simpler sentences: In adults the body is patterned with pale yellow spots, crescents and lines, markings becoming smaller and more profuse as the fish ages. The patterning begins in juveniles with sparse, vertical bars and spots along the lateral line.