بررسي برخي شاخص هاي زيستي سياه ماهي Capoeta buhsei در حوضه رودخانه قره چاي ساوه

اين مطالعه در رودخانه قره چاي ساوه در ماه هاي مرداد 90، بهمن90 وآبان91، انجام گرفت. ماهيان توسط دستگاه ضربه برقي Electroshocker)) با قدرت 7/1 كيلو وات و جريان مستقيم و ولتاژ 300-200 ولت صيد گرديد. ماهيان پس از صيد در فرمالين 10 درصد تثبيت و جهت بررسي به آزمايشگاه منتقل شد

In this study we investigated biometric and morphometric traits of Capoeta buhsei in Gharachay River, Saveh. Sampling was in 5/90, 11/90 and 8/91. Sampling was by electroshoker. Samples after catching transferred to Azad university of Babols labratoar and investigated. Measurement of length was recorded by digital caliper to the nearest 0/01 mm and weight was recorded by digital balance to the nearest 0/01 g .Age determination was by observing scales in benicular loop with 40..Results of investigation of 53 male and 39 female of this species indicated that mean standard length of male and female was 131/46±23/59 mm and 152/96±25/07 mm respectively. Ratio of female to male was 0/73 :1 and with x2-test there wasn’t a meaningful relashionship between male and female ratio.