Amerikanischer Flussbarsch
In the early 1900s, Yellow perch "(Perca flavescens)" appeared in Goose Lake and other small lakes in the Lower Geyser Basin. It is believed they were either illegally introduced or were hitchhikers in official bass stocking. In 1938, fisheries managers poisoned Goose Lake and other locations known to contain Yellow perch. They do not exist in the park today.