Difference between revisions of "Brown Trout"
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+ | '''2018''' | ||
+ | *[https://www.usbr.gov/uc/rm/amp/twg/mtgs/18jan25/Attach_06.pdf Brown Trout in Lees Ferry: Evaluation of Causal Hypotheses and Potential Interventions ] | ||
'''2017''' | '''2017''' | ||
− | *[https://www.usbr.gov/uc/rm/amp/amwg/mtgs/17feb15/Lees%20Ferry%20Trout.pdf Lees Ferry Trout Fishery Status | + | *[https://www.usbr.gov/uc/rm/amp/amwg/mtgs/17feb15/Lees%20Ferry%20Trout.pdf Lees Ferry Trout Fishery Status ] |
− | *[https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/AR23_Muehlbauer.pdf Brown Trout in Glen Canyon: Insights from Two Expert Elicitation Surveys | + | *[https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/AR23_Muehlbauer.pdf Brown Trout in Glen Canyon: Insights from Two Expert Elicitation Surveys ] |
− | *[https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/AR22_Healy.pdf Bright Angel Brown Trout Removal and Humpback Chub Translocations | + | *[https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/AR22_Healy.pdf Bright Angel Brown Trout Removal and Humpback Chub Translocations ] |
− | *[https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/A10_Healy.pdf Brown Trout Management Considerations: An Update | + | *[https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/A10_Healy.pdf Brown Trout Management Considerations: An Update ] |
− | *[https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/AR20_Rogowski.pdf System Wide Monitoring | + | *[https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/AR20_Rogowski.pdf System Wide Monitoring ] |
'''2016''' | '''2016''' |
Revision as of 11:07, 15 February 2018
Brown trout caught at the LCR during the 2013 summer Natal Origins trip |
Brown TroutBrown trout are native to Europe and were introduced to tributaries in the Grand Canyon in the 1920s. They are capable of withstanding slightly higher temperature than rainbow trout. Unlike most other trout species, brown trout spawn in the late fall. Their spawning behavior, however, is similar to other trout species. Like rainbow trout, young brown trout feed on aquatic and terrestrial insects and invertebrates but brown trout are more apt to switch to eating other fish as they get bigger. The rainbow trout found in Grand Canyon are more likely to continue to eat mostly insects and invertebrates even as adults. [1] [2] Studies have shown that rainbow trout and native fish like humpback chub often have a difficult time persisting in the presence of a large population of brown trout. [3] [4] [5] Desired Future Condition for the Lees Ferry Trout FisheryA high quality trout fishery in GCNRA, as further described in the Recreation DFC that does not adversely affect the native aquatic community in GCNP. |
Rainbow Trout | Brown Trout |
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