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I 34 5. Initiate discussions with the Service after the conclusion of the 5-year research pragram ta examine further refinement .of flows for the endangered Colorado River fish. Flaws were established year-round based on the best scientific and commercial data currently available. Yet questions remain pertaining to the winter and spring periads. Current data indicate the need for a spring peak, although the nature of the peak (magnitude versus duration) may still need refinement. Historically, winter flaws were low and stable in the Green River. Questions regarding the effects on the endangered fish of deviating from low and stable winter flows need to be addressed. Therefore, further research is imperative for these periods to ensure that the flows required to preserve and recaver the endangered fish will eventually be in place. Formal Section 7 consultation must be reinitiated if: a. the amaunt or extent of taking specified in the incidental take statement is exceeded; b. new information reveals effects of the actian that may affect listed species .or critical habitat in a manner or ta an extent not previously considered; c. the identified action is subsequently modified in a manner that causes an effect to the listed species or critical habitat that was nat considered in the bialogical opinian; or d. a new species is listed or critical habitat designated that may be affected by the identified action. Although the Yampa River flow regime is used to cue releases from Flaming Gorge Dam, this opinion does not prejudge future development in the Yampa River. Any such develapment will require Section 7 consultation in compliance with the Act. CONSERVATION RECOMMENDATIONS In order to avoid adverse effects of long-term operation of Flaming Gorge Dam on the rare and endangered fish, the Service makes the following recommendations. 1. Reclamation should examine methads for opening fish access ta backwaters and flooded bottomlands during high releases. Salt cedar establishment reduced fish access to habitats off the main channel. The methods may include salt cedar remaval or opening channels through the salt cedar and obtain any necessary flowage easements.