9571

• UCREFRP Catalog Number: 9571
• Author: Miller Ecological Consultants Inc.
• Title: Fryingpan-Roaring Fork Literature Review.
• USFW Year: 2002.
• USFW - Doc Type: Fort Collins, CO.
• Copyright Material: NO

Roaring Fork River
This document provides a brief description of physicaUchemical characteristics,
periphyton communities, benthic macroinvertebrates, and fish communities in the
' Roaring Fork River downstream from its confluence with the Fryingpan River. Most of
this data was collected by ERT during 1981. The PHABSIM model was used to
determine how trout habitat in the Roaring Fork River would be affected by the proposed
' change in flows in the Fryingpan River. The results suggested that the influence on the
Roaring Fork River would be minimal because of the relatively small contribution of
flow provided by the Fryingpan River.
Nehring, R B. R M. A. 1981. Stream Fisheries Investigations Job Progress Report
Colorado Division of Wildlife. Federal Aid in Fish and Wildlife Restoration Project
F-51-R-6. Fort Collins, Colorado.
Fryingpan River
Fisherman success rate and fish population data that was collected during 1980 was
' compazed to data collected during 1979 and some eazlier years. Fisherman success rate
was much greater in the recently established catch-and-release area. Fish populations
remained relatively stable in the catch-and-release area, but had declined at most other
locations. Some discussion on the impact from the altered temperature regime created by
Ruedi Dam suggests that fish health and growth rate show no negative impacts.
Roaring Fork River
Catch and release regulations are believed responsible for maintaining a high percentage
of adult rainbow trout at study sites near Aspen, Colorado. These sites were located
outside of the study area for this project.
1 Nehrin
g, R B. and R Anderson. 1982. Stream Fisheries Investigations Job
' Progress Report Colorado Division of Wildlife. Federal Aid in Fish and Wildlife
Restoration Project F-51-R-7. Fort Collins, Colorado.
Fryingpan River
Data concerning fisherman success and fish populations during 1981 is compazed to data
from previous years. General trends suggested that the overall trout population and
particularly lazger size trout were declining due to over harvest in the section of river
with 8 trout/day bag limits. Despite successful angling in the catch-and-release section of
the Fryingpan River the population of rainbow trout appeared to be declining due to
inadequate reproduction in this reach. Successful spawning by brook and brown trout
below Ruedi Dam indicated that temperature could be the limiting factor in successful
rainbow trout recruitment.
Fryingpan-Roaring Fork Literature Review February 27, 2002
Miller Ecological Consultants, Inc. Page 11