Does the Wild & Scenic Rivers Act allow for the introduction of aquatic or upland non-indigenous species?

The Wild & Scenic Rivers Act does not specifically mention aquatic or upland non-indigenous species. While non-indigenous species may be introduced—provided that doing so is not contrary to another law or the policy of the managing agency, and would not result in the degradation to the river’s values—the use of native species is generally preferred. Indirect impacts of introducing non-indigenous species, e.g., increasing recreational fishing, should also be considered. Additional guidance for a specific river is usually included in its management plan.