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<br />RESULTS <br /> <br />Table 4. Community 8ununary statistics. EFT ~ Insect orders, Epherneroptera, Plecoptera, Trichoptera. <br />MHBI ~ Modified Hilsenhoff Biotic Index. Abundance data is number/m2 for quantitative samples and <br />number per sample for qualitative samples. NC ~ Not calculated. * = unable to calculate. <br />Richness and enumeration measures <br /> Total Total EFT EFT # of Dominant Dom. Family Dom. Family <br />station Date richness abundance richness abundance families family abundance % contribution <br />3l-MILE-l 06/10/94 18 1649 6 349 16 Chironomidae 631 38.30 <br />31-MILE-1 06/10/94 18 1649 6 349 16 Chironomidae 631 38.30 <br />31-MILE-1 06/10/94 18 1649 6 349 16 Chironomidae 631 38.30 <br />CURRANT-1 06/10/94 16 556 7 111 14 E1midae 280 50.30 <br />CURRANT-1 06/10/94 16 556 7 111 14 E1midae 280 50.30 <br />CURRANT-1 06/10/94 16 556 7 111 14 Elmidae 280 50.30 <br /> ------ ------ ------ ------ ------ ------ <br />Mean 17 1103 7 230 15 456 44.30 <br />Diversitv indices <br /> Shannon Dbar Simpson Marga1ef Menhinick <br />station Date diversitv diversity diversity diversity diversity evenness <br />31-MILE-1 06/10/94 1. 809 2.610 0.221 2.295 0.443 0.690 <br />31-MILE-1 06/10/94 1. 809 2.610 0.221 2.295 0.443 0.690 <br />31-MILE-1 06/10/94 1. 809 2.610 0.221 2.295 0.443 0.690 <br />CURRANT-1 06/10/94 1. 826 2.634 0.285 2.373 0.679 0.482 <br />CURRANT-1 06/10/94 1. 826 2.634 0.285 2.373 0.679 0.482 <br />CURRANT-1 06/10/94 1. 826 2.634 0.285 2.373 0.679 0.482 <br /> ------ ------ ------ ------ ------ ------ <br />Mean 1.818 2.622 0.253 2.334 0.561 0.586 <br />