Oriental shrimp is conexotis species that widely distributed in northern Iran. This study was conducted to determine population dynamic characteristics of this species based on Its specimen in Golestan dam lake from February to September 2016. Sex ration was unbalanced  in favorite of females (1 : 1.88). Total length and weight ranged from 16.06 to 85.01 mm and 0.04 to 6.75 gr respectively. The...

This study was performed to determine the severity of hormonal changes and the immune system of oriental river prawn (Macrobrachium nipponense) in the face of thermal stresses (heat and cold). For this purpose, 80 pieces of prawn with an average weight of 1.5 ±0.3g were prepared from Anzali wetland and in the laboratory after a rest period, under thermal stresses (from 15 ° C to 22 ° C) and col...