A freshwater fish survey was done in Wrangell-St. Elias in 2001-2003 (this report contains information from Denali National Park and Preserve and Yukon Charlie National Preserve as well). This survey documented fish present within the park’s boundaries and it is still ongoing. In 2006 the fisheries crew captured and documented northern pike in the park for the first time. So far, we have documented 21 species of freshwater fish, with more expected. NPSpecies Fish Checklist. Our fisheries biologists keep track of fish species within the park. They are documented within a database called NPSpecies. If you'd like to view or print out the most updated checklist of fish species, please follow these directions: