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96 <br />Table 1. Total effort for three sampling techniques, <br />Green and Yampa rivers, Dinosaur National <br />Monument, April - October, 1981. <br />Electrofishing Trammel Net* Seine <br />Strata (hrs) (net hrs) (m2) <br />G1 9.6 49.1 2159 <br />G2 9.8 48.0 3303 <br />G3 12.0 41.8 3650 <br />G4 9.5 47.5 4863 <br />Y1 12.0 46.6 2509 <br />Y 8.1 49.2 1696 <br />2 <br />*150' X 6' Net <br />L