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Hatchery Trout Predation Data, Arizona

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: January 27, 2026 | Last Modified: 2020-08-27T00:00:00Z
These data were compiled to evaluate the potential adverse impacts that stocked trout may have on native fish populaitons through predation. Hatchery-reared rainbow and brown trout are typically fed exclusively on commercially prepared pelleted feeds and have no experience catching or consuming life fish at the time of stocking and yet stocked fish are percieved to present a high predation risk for juvenile native fishes. These data were compiled to allow for a relative comparison of predation effectiveness between hatchery-reared fish and wild fish. Mean numbers of prey fish surviving in replicated overnight laboratory predation trials were quantified.

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Arizona Arizona Game and Fish Department, Arizona Aquatic Research and Conservation Center Arizona Game and Fish Department, Page Springs Fish Hatchery Big Water Canyon Creek Cornville Flagstaff Lees Ferry Marble Canyon Pine USGS:5b607334e4b006a11f6a39dc United States Forest Service, Rocky Mountain Research Station Utah Wahweap State Fish Hatchery biota brown trout captive rearing fish fish populations fishery management hatchery reared fish hatchery-reared brown trout hatchery-reared rainbow trout laboratory data laboratory experiments native fish native fish populations native species negative effects predation predation effectiveness predation trials predators prey fish rainbow trout southwestern United States stocked brown trout stocked rainbow trout stocked trout wild brown trout wild fish wild rainbow trout wildlife biology

Complete Metadata

bureauCode 
[
  "010:12"
]
identifier http://datainventory.doi.gov/id/dataset/USGS_5b607334e4b006a11f6a39dc
spatial -111.893988, 34.289812, -110.809682, 37.102224
theme 
[
  "Geospatial"
]

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