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<br />Table 10. Aquatic insects wi th hi gher dens; ties (no. 1m2) in the Kootenai and Fi sher Ri ver. Kick, <br />Circular and Knapp Waters samples are combined. Annual mean of monthly means, October, <br />1979 - September, 1980. <br /> <br />Taxa <br /> <br />Dunn Creek <br />x(s.d. ) <br /> <br />Kootenai Ri ver <br />Elkhorn <br />x(s. d. ) <br /> <br />Pi pe Creek <br />x(s.d.) <br /> <br />Fi sher Ri ver <br />x(s.d.) <br /> <br />EPHEMEROPTERA <br /> <br />Baeti s hageni <br />Epeorus Spa <br />Rhithrogena hageni <br />Ephemerella doddsi <br />Paraleptophlebia heteronea <br /> <br />0.4{2) <br />o (0) <br />5 (11) <br />o (0) <br />4 (9) <br /> <br />1(3) <br />6(22) <br />35(32) <br />0(0) <br />5(9) <br /> <br />3(6) <br />127 (165) <br />49 (47 ) <br />1(2) <br />16(22) <br /> <br />218 ( 37 9 ) <br />639(1,202) <br />640(422} <br />38(45) <br />86 (94 ) <br /> <br />I <br />N <br />U'1 <br />I <br /> <br />TRICHOPTERA <br /> <br />Arctopsyche grandis <br />Hydropsyche occidentalis <br />Cheumatopsyche Spa <br />Lepidostoma Spa <br /> <br />o (a) <br />2 (5) <br />0.1(0.6) <br />2 (5) <br /> <br />0.7(3) <br />92(193) <br />26(30) <br />6(8) <br /> <br />2(4) <br />199 (257 ) <br />22(21) <br />7(19) <br /> <br />21(34) <br />347(526) <br />79 (95 ) <br />390(369) <br /> <br />COLEOPTERA <br /> <br />Optioservus quadrimaculatus <br /> <br />5 (8) <br /> <br />37 (37) <br /> <br />31(35) <br /> <br />131(111) <br /> <br />DIPTERA <br /> <br />Hexa toma sp. <br /> <br />0.1(0.6) <br /> <br />3 (7 ) <br /> <br />1(2) <br /> <br />97 (137) <br />