The aquatic ecosystems of Black Canyon are threatened by many potentially damaging exotic organisms. The National Park Service is serious about preventing the invasion of exotic species, and asks for your help in keeping the Gunnison River clean, clear, and fishable.
NEW ZEALAND MUDSNAIL There is no environmentally sound or inexpensive way to eliminate New Zealand mudsnails once they are introduced. Please help prevent further spread of these invaders:
It is a state and federal offense to transport or release New Zealand mudsnails. Please report any sightings of New Zealand mudsnails to a park ranger. Additional Information:
WHIRLING DISEASE Whirling Disease is a parasitic infection affecting primarily rainbow and cutthroat trout populations. The Gunnison River is already positive for this parasite, however, detailed information about this disease and its prevention and control is available from the Colorado Division of Wildlife. |
Last updated: March 31, 2012