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E. A plan for monitoring the effects of stocking nonnative fishes on the endangered Colorado River fishes. Additionally, any proposal to introduce new fish species into the Upper Basin shall follow the rationale and justification of the American Fisheries Societe policy statement "Introductions of Aquatic Species" (Appendix C: Items a-g on Page 21 of appendix). Monitoring to determine the impacts and remediation needs of stocking actions would be conducted for all the alternatives. The Interagency Standardized Monitoring Program currently in place under the Recovery Program would-be used by all alternatives. However, the level of monitoring differs somewhat between the alternatives and is therefore addressed under each alternative. ISMP monitoring does not occur in Wyoming. Specific monitoring needs would be determined case-by-case for Wyoming. If it is determined, that the ISMP does not adequately monitor nonnative fish abundance or escapement from stocked water, it would not be used under alternatives 2 and 3 and may not be used under any alternative, including the no action alternative. C. ALTERNATIVE 1 This alternative allows routine stocking of species and in situations that are common to alternatives 2 through 5 (Table 1). All other proposed stocking would be reviewed on a case-by-case basis and follow the steps outlined in Figure 2 and Appendix A. These procedures are the most simple to understand but provides the fewest cases where routine stocking can occur. Monitoring requirements would be included as part of each approved stocking. Additional monitoring information would be collected through the ISMP. Table 1. Alternative 1 locations/situations where nonnative fish species can be stocked on a routine basis- All waters of the Upper Basin: salmonids (trout). 2. Largemouth bass, bluegill, black crappie, channel catfish, fathead minnow, mosquitofish, and triploid grass carp in isolated waters located outside of the 100-year floodplain. 3. Striped bass and threadfin shad in Lake Powell. 4. Channel catfish, mosquitofish, redside shiner, and smallmouth bass in all waters upstream of Flaming Gorge Dam. Strawberry reservoir: smallmouth bass. 10