Grunion

Grunion are two fish species of the genus Leuresthes: the California grunion, L. tenuis, and the Gulf grunion, L. sardina. They are sardine-sized teleost fishes of the New World silverside family Atherinopsidae, found only off the coast of California, USA, and Baja California, Mexico. The California Grunion are found on the Pacific Ocean coast, and the Gulf Grunion within the Gulf of California. Many people enjoy watching "grunion runs."