Grunion Grunion Grunion are two fish species of the genus Leuresthes: the California grunion, "L. tenuis", and the Gulf grunion, "L. sardinas". 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, where the species are found on both the Pacific Ocean and Gulf of California coasts. Many people enjoy catching grunion at events called "grunion runs." Grunion are known for their unusual mating ritual wherein at very high tides, the females come up on to sandy beaches where they dig their tails into the sand to
USS Grunion 1942. Captured Japanese records show no antisubmarine attacks in the Kiska area, and the fate of "Grunion" remained a mystery for 65 years, until the discovery in the Bering Sea in August 2007 of a wreck believed to be her. In October 2008, the U.S. Navy verified that the wreck is the "Grunion". The "Grunion" received one battle star for her World War II service. In 1998 Lieut. Col. Richard Lane purchased for $1 a wiring diagram from a Japanese cargo ship, the "Kano Maru", which had been active during World War II. Hoping to authenticate the document, Lane posted