Definition
The Family Gerreidae encompasses the mojarras, small silvery fish found in tropical and subtropical coastal waters. These fish are characterized by their highly protrusible mouths. They use these specialized mouths to feed on invertebrates buried in the sand. Gerreidae play a vital role in marine ecosystems as both prey and predator. Their silvery coloration helps them blend in with their surroundings. They're a common sight in shallow waters and estuaries. Understanding their role is crucial for studying coastal ecology.