Definition
'Jacksmelt' is a common name for 'Atherinopsis californiensis', a species of silverside fish found along the Pacific coast of North America. These fish are larger than typical silversides, reaching lengths of up to 18 inches. They are popular among anglers for sport fishing. Jacksmelt are also used as a food source. They are schooling fish, often found in large groups. Their size makes them a desirable catch.