Benthos biodiversity and saprobe index of Shahdad River at kerman province

Shahdadroud River is located in northeastern Kerman city, this river like other Iran central basin rivers originates in central highlands and then is terminated in central plateau; these rivers are worthwhile from view point of biodiversity and drinking water at in arid and semi-arid regions. This river supplies some parts of drinking water of Kerman city and some vicinity village. The main aim of the present study is to consider benthose biodiversity of the river; for this purpose, limnological and biological studies of the river were carried out seasonally in 7002. At this study, four sampling stations were determined based on limnological standard method along the river; afterwards sampling of invertebrates (Biological Index) were performed seasonally during study period. The results showed that first station is free of pollution and has highest biodiversity while the second station is the most polluted region at the river because the first station has no pollutant resource but the second station directly receives wastewater of rainbow trout fish culture center. The insect species from Hydropsyche genus in first station and Simolium genus in second, third and forth stations were observed. Insect species such as Rhitrogena sp., Liponeura sp. and Ecdyonurus sp. relate to free organic pollution area that in studied sampling stations were observed in first station only.

کلیدواژه ها:

Benthos ، Kerman ، Shahdad river ، Biological Index