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samples per station provide a basis for various statistic,:) analyses, If random samples are all taken from <br /> a rubble substrate in as similar habitat as possible, taking into account mainly the velocity of flow and <br /> depth in the stream. Biologists have found that compared to other sampling devices the Win et-modified <br /> P g P P g g <br /> surber net yields the highest coefficient of correlation (similarity of samples). <br /> , . . <br /> } A stream's natural potential for productivity, habitat quality, and water quality can be compared <br /> to the "actual" by taking.quantitative samples of aquatic macroinvertebrates. Careful analysis of <br /> macro invertebrate communities can reveal conditions and trends in aquatic ecosystems. Sampling and <br /> analysis is conducted in accordance with procedures outlined in FSH R4 2609.23, March 1985, Fisheries <br /> Habitat Surveys Handbook. <br /> This report is based upon 92 aquatic macroinvertebrate samples from seventeen stations on nine <br /> streams, along with the physical habitat and water chemistry data provided your uatic specialists. <br /> Streams monitored include Bear Creek, East Fork Brush Creek', Coal Creek, Crystal 'ver, Dutch Creek, <br /> Gypsum Creek, Peru Creek, Snake River, and North Foik White River. <br /> SL <br /> U4A,1 <br /> Al . <br /> 4 <br /> Gv- <br /> � � <br /> v 5 J t.°- S <br /> Z"",- <br /> 2 <br />