WSPC02460

• File Number: 8240.300.31.J
• Description: Colorado River Threatened-Endangered Species - Recovery Program - San Juan - Environmental Studies
• State: CO
• Basin: San Juan/Dolores
• Water Division: 5
• Date: 9/1/2000
• Author: Biology Committee
• Title: San Juan River Recovery Implementation Program Biology Committee - Program Evaluation Report - 7 Year Research Period 1991-1997 - 09-01-00
• Water Supply Pro - Doc Type: Report/Study

00159 t,

IMPLEMENT AND MAINTAIN AN ADAPTIVE MANAGEMENT PROGRAM
TO ENSURE CONDUCT OF APPROPRIATE RESEARCH
AND MANAGEMENT ACTIVITIES TO ATTAIN AND MAINTAIN
RECOVERY OF ENDANGERED FISH SPECIES. THE BIOLOGY COMMITTEE
WILL MEET AS FREQUENTLY AS NECESSARY, BUT AT LEAST
ANNUALLY, TO EVALUATE RESEARCH ACTIVITIES, MANAGEMENT ACTIONS,
AND RECOVERY STRATEGIES TO REFINE AND IMPROVE THE PROGRAM
FOR THE ENDANGERED FISH SPECIES OF THE SAN JUAN RIVER BASIN . . . . . 4-6

CHAPTER 5: FUTURE PROGRAM DIRECTION .................................. 5-1

INTRODUCTION ...................................................... 5-1

GOALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
1. Restore a Demographically Viable Razorback Sucker Population
in the San Juan River. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 5-2
2. Restore a Demographically Viable Colorado Pikeminnow Population
in the San Juan River. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 5-3
3. Maintain and Enhance the Native Fish Community ............... 5-5

PRIORITIZATION OF FUTURE TASKS.................................... 5-7

LITERATURE CITED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R-1

LIST OF TABLES

Table 2.1.

Research and recovery studies conducted on the San Juan River
from 1987 to 1997 with starting year, length of study, and citation

for final report. .................................................. 2-6

Table 3.1.

Total number of fish collected in standardized electrofishing collections,
1991-1997 (Source: Ryden 2000a). ................................ 3-13

Table 3.2.

The detailed habitat types and the eight general categories
on the San Juan River (Source: Bliesner and Lamarra 2000). .. . . . . . . . . .. 3-17

Table 3.3.

The percent of each reach that exceeded various habitat richness values
(5-10) in the San Juan River. Habitat richness was determined
as the number of habitat types per 300-meler reach. Data were
derived from habitat mapping conducted by Bliesner and Lamarra (2000). . . 3-27

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T-3

Program Evaluation Report

August 2000