As the lakes are located in remote areas of the United States, releasing the fish by air is a more effective method of stocking the lakes. Difficulties are maintaining sufficient oxygen levels when transporting them by vehicle over long distances.
Up to 35,000 young fish, called “fingerlings”, can be released in a single aerial drop. According to the Utah Division of Wildlife Resources, their smaller size, combined with a slowed fall from high altitude, results in a high survival rate. Aerial fish stocking has been utilized in Utah since the 1950s and has been used to fill over 200 remote lakes in the state.