Determinating of The Lethal concentrations (LC50/96h) of The toxin Endosulfan on the Caspian kutum( Rutilus frisii kutum( , Volba( Rutilus rutilus caspicus) and Common carp( Cyprinus carpio
Subject Areas : Journal of Animal Biologyمجید محمدنژاد شموشکی 1 , لیلا محمدشریفی 2 , ولی الله صالحی 3 , شهرام ملکی 4
1 - دانشجوی دوره دکترای شیلات ، مربی ، دانشگاه آزاد اسلامی بندرگز ، گروه شیلات
2 - دانشجوی دوره کارشناسی شیلات ، دانشگاه آزاد اسلامی بندرگز ، گروه شیلا
3 - کارشناس ارشد مرکز تکثیر و پرورش ماهی کلمه سیجوال
4 - کارشناس ارشد مرکز تکثیر و پرورش ماهی کلمه سیجوال
Keywords: Cyprinus carpio, Rutilus frisii Kutum, Rutilus rutilus caspicus, Acute toxicity (LC5096h), Endosulfan,
Abstract :
This study were studied the short andndash; term acute toxicity of this toxin on Rutilus frisii kutum,Rutilus rutilus caspicus and Cyprinus carpio fingerlings (1- 3g) In this research, aim to determine the 50% lethal concentration (LC50) in 96 hours.These experiments carried out in static condition and based on TRC,1984 standard method in 4 days, and controlled of the effective water physico andndash; chemical factors that having ranges pH = 6.7 andndash; 8 , DH = 205 mg /l (CaCO3), DO = 80% and Temp. = 25 10C .On the base of obtained results the LC50 value of Endosulfan in 96 hours were 0.002 , 0.00053 and 0.0046 mg/l on Rutilus frisii kutum,Rutilus rutilus caspicus and Cyprinus carpio respectively, and also MAC(Maximum allowable concentration) value of this toxin were determined 0.0002 ,0.000053 and 0.00046 mg/l for Rutilus frisii kutum,Rutilus rutilus caspicus and Cyprinus carpio.
