The quantitative assessment of sand-extraction impact on zoobenthos in Kuibyshev Reservoir
In the article, the qualitative and quantitative composition of zoobenthos being dragged during sand extraction in Kuibyshev reservoir is reviewed. The dredge-type floating crane with submersible pump-type DOP (DFC with DOP) was used during the extraction of sand for 5 hours work. The maximum thickness of redeposited suspension (0.24 cm) was found at the distance of 50 m from DFC with DOP. The minimum thickness (0.02 cm) was found at the distance of 200 m. The impact of sand extraction using DFC with DOP to aquatic biological resources is insignificant. The negative impact is absent.