Fishes: being an alpine lake only two species are native to the lakeâ??killfish (bOrestias/b) and catfish (Trichomycterus); trout were introduced in the 1950s. Other species: Large frog (Telmatobius) up to 1 ft. long. Other facts: -Fed by 25 rivers -May tide as much 16ft. -Forty-one islands. Tags: andes ? Bolivia ? Cuzco ? incas ? Tiawanaku ? Titikaka Social: Bookmark | Tell a Friend | No Comments ? ... Search. Search by bhotel/b name | Browse by country ...