Survey and identify of Macrobenthos in Shapur River, Fars

Macrobenthos importance not only because of their presence in the food chain but the presence or absence of benthic species showed water quality was not the amount of infection or contamination. In this study diversity macrobenthos was studied from October 2011 to December 2012 for 12 months in 6 stations in 4 seasons in Shapur River in Fars province. Macrobenthos for sampling in the second month of each quarter of Svrbr and Ekman sampler was used. Having identified Macrobenthos using identification keys, a lot of them were measured during the study. During the study, 6 of Macrobenthos at all stations, including of Ephemeroptera, Diptera, Trichoptera, Gasteropoda, Plecoptera, Odonata were identified. Compare the many different groups showed that Ephemeroptera 51%, Diptera 23%, Trichoptera 18.5%, Gasteropoda 2.5%, Plecoptera 2.5% and Odonata 2.3%. Macrobenthos more frequency in the spring (8300 sq m) and the lowest in autumn than in other seasons (3650 sq m) were observed. The diversity indices, the highest and the lowest diversity in the fall (1.999) and spring (1.706), maximum and minimum Simpson dominance in spring (0.38) and autumn (0.29) and most of uniformity in the fall Camargo (0.538) and the lowest in spring (0.423) was measured macrobenthos importance not only because of their presence in the food chain but the presence or absence of benthic species showed water quality was not the amount of infection or contamination.