Author: (Linnaeus, 1758)
FBname: Rock gunnel
Comments: Occurs in shallow waters (seashore, tide pools), but descends (especially in winter) to 100 m or more.  May remain out of water under rocks or seaweeds (Ref. 31184).  Feeds on small crustaceans, polychaetes, mollusks and fish eggs.  The eggs are laid on the sea bed in a large clump, which is closely guarded until hatched (Ref. 9900).  Breathes air when out of water (Ref. 31184).  Spawning occur in November - January .  Female lays 80-200 eggs in a large ball under a stone or in an empty bivalve shell (Ref. 35388).