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'-::'c ,-~ .... i....~ co r.;; will be identified and enumerated by life stage and species. Fish will be identified by six-letter codes (first three letters of genus and first three letters of species). All fish captured every fourth sampled mile (Designated Mile) will be weighed (:t: 5 g) and measured (:t: 1 mm total and standard lengths). All nonnative fishes will be removed from the river and all native fishes will be returned alive to the river. All rare fishes captured will be weighed (:t: 1 g if< 200 mm TL and:t 5 g if> 201 mm) and measured (:t: 1 mm SL and TL), sex determined (if possible), and scanned for PIT tags. Unique alphanumeric codes (PIT tags) will be recorded if a specimen has a tag. If a specimen does not have a PIT tag, such will be implanted (only if specimen> 150 mm TL). Water temperature will be determined at each Designated Mile. All data will be recorded on standard field forms (Figure ). Each river mile sampled by eaeh raft will be treated as a separate collection with a unique sample number. Rare fish information will be recorded on the standard field form for the river mile in which it was captured. Annual reports, summarizing data obtained during large-bodied fish monitoring will be submitted (written and electronic format) by 31 March of the year following the particular effort. The annual report will minimally contain a summary of species captured, species density (number per hour of elapsed electrofishing) by geomorphic reach, size-strueture of common species populations (flannelmouth sucker, bluehead sucker, channel catfish, common carp) by geomorphic reach, and rare fishes captured (including somatic data). GEOMORPHOLOGY AND HABITAT MONITORING CHANNEL MORPHOLOGY River Transects Deposition and scour will be monitored in five of the six geomorphic reaches included in the long term monitoring study area. Reach 2 is a canyon bound reach that is not subject to channel change and will not be monitored. Two to three cross-sections in each geomorphic reach have been identified for monitoring. Each cross-section will be surveyed across the active channel pre- and post-runoff each year. At least one cross-section in each reach will span the flood plain and the full width will be surveyed every five years to monitor the impact of high flows on the flood plain. Table 1 lists the cross-sections that fall in each category by geomorphic reach. The cross-sections are selected from those established in 1962 (lettered cross-sections), those established in 1992 and new cross-sections where the existing ones are not representative of a geomorphic reach. All cross-sections will receive a new number representing the geomorphic reach they represent as shown in table 1. 8 Drart Long Term Monitoring Plan - SJRJP Biology Committee