A Century Later: Scientists Study the Impact of Crayfish Introduction at Crater Lake National Park (U.S. National Park Service)

Crater Lake National Park

Boom of invasive crayfish threaten species in Oregon's Crater Lake

2022 National Park Service Our World – Underwater Scholarship Society™

Deterioration of the Littoral–Benthic Ecosystem Following Recent Expansion of Signal Crayfish (Pacifastacus leniusculus) in the World's Clearest Large Lake

A Century Later: Scientists Study the Impact of Crayfish Introduction at Crater Lake National Park (U.S. National Park Service)

Spatial distribution and relative abundance of signal crayfish (red)

Eulogy for a Crayfish We Hardly Knew - Bay Nature

Troubled Waters · National Parks Conservation Association

Crater Lake NP: Administrative History (Chapter 19)

The impact of introduced crayfish on a unique population of salamander in Crater Lake, Oregon (U.S. National Park Service)

Crayfish taking toll on newts, Environmental news, Lewiston Tribune

Hailey Shchepanik, 2022 NPS Our World – Underwater Scholarship Society™

Crater Lake threatened by boom in non-native crayfish

Deterioration of the Littoral–Benthic Ecosystem Following Recent Expansion of Signal Crayfish (Pacifastacus leniusculus) in the World's Clearest Large Lake