They continuously spawn the creatures as the servant kills them. Some heroes can spawn or summon pets, creatures or devices. Water column spawners are more likely than substrate spawners to spawn in groups. Like Gauntlet and Gauntlet II, enemies spawn from generators. Once they spawn, Zeds chase and attack players automatically. Sockeye salmon are semelparous, dying after they spawn. Also, more than one female will spawn with a male in one nest simultaneously. Here, the fishes spawn in large aggregations. Black holes that spawn from dying stars have masses . Semelparous animals spawn once only in their lifetime. Natarian villages randomly spawn all over the map, and will gradually develop. It inhabits rivers and descends to estuaries and tidal flats to spawn. The incident was thought to have been one reason salmon did not spawn that season. Supply drops will spawn in random locations during a match, providing random weapons and items. They spawn from March to June, mostly in inshore waters.