The Lahontan cutthroat trout (LCT; Oncrhynchus clarkii henshawi) is the only trout species native to the Lake Tahoe Basin and was once the top predator in Lake Tahoe’s aquatic ecosystem. Due to overfishing, habitat degradation, and the introduction of non-native aquatic species, it was extirpated in the 1930s from the Lake Tahoe Basin. While overfishing is no longer an issue, degraded stream habitats, fish passage blockages (culverts, etc.), and non-native aquatic species such as rainbow trout, brook trout, lake trout, and mysis shrimp still pose a significant threat to the reintroduction of Lahontan cutthroat trout. Regional projects such as re-introduction of LCT into Fallen Leaf Lake and the Meiss Meadows area of the Upper Truckee River aim to re-establish self-sustaining populations in the Basin.