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reflecting the dominance of small-bodied nonnative fishes in shallow, low-velocity near-shore environments. Electrofishing captured nine native fishes, 16 non-natives, and seven hybrids. The two most abundant native fish species were flannelmouth sucker and bluehead sucker, and the most abundant non-native taxa were brown trout, common carp, and channel catfish. The percent of native and non-native fishes captured by electrofishing was about equal, and electrofishing captured a higher percentage of hybrids than any other gear. Trammel net samples yielded six native and eight non-native species, and three hybrids, and captured the highest proportion of native fish (about 2/3) of any sampling gear. The most common native fishes captured were flannelmouth sucker and roundtail chub, while the overwhelming majority of non-native fish was channel catfish. Five native fishes, eight non-natives, and one hybrid were captured in drift nets. The most abundant native fish in drift net samples were flannelmouth sucker and bluehead sucker, and non-native fishes were dominated by red shiner and sand shiner. When all sampling gears were combined, native fishes comprised only 10.3% of total catch and non-natives were 89.3%; the remaining 0.4% were hybrids. High non-native fish abundance in seine samples reflected the dominance of small-bodied red shiner, sand shiner, and fathead minnow in the low-velocity habitats where most samples were collected. Those taxa dominated the fish community in low-velocity habitats in other areas of the Colorado River Basin (Propst and Gido 2004). For example, in backwaters of the middle and lower Green River, Haines and Tyus (1990) found that those species comprised about 90% or more of the fish community. Drift net samples were also dominated by non-native fishes but to a lesser extent than in seine samples. Although all gear types were not used with equal effort in all reaches or years, the differences in community composition that each sampling method yielded were striking. This points to the need to employ a wide variety of gear types when attempting to understand community composition and abundance of fishes in the Green River. 20