Melanoides tuberculate as bioindicator of the Heavy Metal contamination in water and sediment pollution of Euphrates River at Thi-Qar province- Iraq

The aim of this study was determination the diversity of  the aquatic Gastropoda species and assessment heavy metals  of  water, sediment, soft tissue and shell Melanoides tuberculata  in Euphrates River at Thi-Qar province in southern Iraq with evaluate to  some of physical and chemical factors for river. The study was done during Summer and Winter seasons and samples were collected from of three study sites along Euphrates River. The samples were analyzed using Atomic Absorption Spectroscopy for detection of heavy metals. The results were revealed that Melanoides  tuberculate , Physella acuta , Pisidium dubium, Melanopsis nodosa  and Corbicula fluminea  were found in the studied station in both season with high percentage ratio (۳۷.۷۳, ۲۰.۲۷, ۶.۵۸, ۸.۴۲, ۲۶.۹۸%) in summer season. Sediment has the highest mean concentration more than water. The heavy metals order was arranged as Zn < Niheavy metals in their metals then it could use as a bio-indicater for these metal for detection  the pollution in Euphrates river.