Grunion The Gulf grunion, with its smaller eggs, is unique in that it spawn during both night- and daytime. Although some other fish species leave their eggs in locations that dry out (a few, such as plainfin midshipman, may even remain on land with the eggs during low tide) or on plants above the water (splash tetras), jumping onto land "en masse" to spawn is unique to the grunion, capelin and grass puffer. Grunion feeding habits are not well known. They have no teeth and feed on very small organisms such as plankton. In a laboratory setting, grunion eat live brine
USS Grunion the Pacific on 24 May. A week later, as she transited the Caribbean Sea for Panama, she rescued 16 survivors of the USAT "Jack", which had been torpedoed by the , and conducted a fruitless search for 13 other survivors presumed to be in the vicinity. Arriving at Coco Solo on 3 June, the "Grunion" landed the survivors and continued on to Pearl Harbor, arriving on 20 June. Departing Hawaii on 30 June after ten days of intensive training, the "Grunion" touched Midway Island before heading toward the Aleutian Islands for her first war patrol. Her first report, made as