Predation on Listed Fishes at Reclamation Facilities and Ways to Reduce its Impact
Predation on fish at Reclamation facilities is widespread and is an issue of great concern to State and Federal agencies (both sport and native fish populations can be adversely impacted by established predator populations). Our questions are:
* How widespread is predation at Reclamation facilities?
* Does predation significantly impact Reclamation operations?
* What are some methods (for example, fish behavioral barriers, flushing flows, habitat manipulation to move predators out) Reclamation can employ to reduce such predation?
Need and Benefit
Predation on threatened and endangered fish at Reclamation facilities is widespread throughout the Western United States. This is due, in part, to construction and operation of the facility and to the introduction and establishment of non-native fishes. Often, the altered environment is more suitable to introduced fishes, rather than the native species, and many of the introduced species consume the sensitive native forms. This is a huge legal and costly issue for Reclamation. Individual offices deal with losses to predation differently. We propose to review this issue, Reclamation wide, and offer guidelines to reduce impacts of predation on Reclamation's ability to deliver water.
Yakama Nation, Tribe
Contact the Principal Investigator for information about these documents.
This information was last updated on May 22, 2013
Contact the Research and Development Office with questions or comments about this page