Chromis chromis (Linnaeus, 1758) (Mediterranean chromis)
Form small shoals in midwater above or near rocky reefs or above seagrass meadows (Posidonia. Feed on small planktonic or benthic animals . Reproduce in summer . Eggs characterised by adhesive filaments are nested on rocky or sandy bottoms . Males guard the eggs .
Diplodus vulgaris (Geoffroy Saint-Hilaire, 1817) (Common two-banded seabream)
A euryhaline species inhabiting rocky and sometimes sandy bottoms to depths of 160 m, but more commonly in less than 50 m. The young are sometimes found in seagrass beds. Adults feed on crustaceans, worms and mollusks . Important food fish.