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Journal: NEW TECHNOLOGIES IN AQUACULTURE DEVELOPMENT (JOURNAL OF FISHERIES) | Year:1392 | Volume:7 | Issue:3 (27) | Start Page:41 | End Page:50

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Title

A STUDY ON THE EFFECTS OF LAR DAM CONSTRUCTION IN HYDRAULIC FLUCTUATION AND SUSPENDED SEDIMENT LOAD ON AQUATIC FAUNA OF HARAZ RIVER

Pages

 Start Page 41 | End Page 50

Abstract

 Nowadays, the soil erosion has been known as disaster for human life and richness. The aim of this study, to understand the effects of LAR DAM construction in hydraulic fluctuation and SUSPENDED SEDIMENT load on AQUATIC FAUNA of Haraz River. Therefore, the data sets of WATER DISCHARGES and SUSPENDED SEDIMENT of Lar-Polor station that located in downstream of dams before dam constructed (1968 until 1980) and after dam constructed (1981 until 2001) were used. The results showed that before construction of dams, WATER DISCHARGES and SUSPENDED SEDIMENT discharges have low coefficient of relations but in after of dam constructed, have good relations between WATER DISCHARGES and SUSPENDED SEDIMENT discharges. However, for longer times sedimentation was increased when released to river would be affected on benthic fish feeding in downstream of Haraz River.

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