Length-weight and length-length relationships, Relative condition factor and Fulton?s condition factor of Five Cyprinid species in Anzali wetland, southwest of the Caspian Sea

This study was conducted to determine length-weight and length-length relationships, relative condition factor (Krel) and Fulton?s condition factor (K) for five species including Scardinius erythrophtalmus, Carassius auratus gibelio, Cyprinus carpio, Tinca tinca and Hemiculter leucisculus belonging to Cyprinidae family. Fish sampling was carried out by gill net and fyke net in the western region of Anzali wetland (SW of the Caspian Sea) between Nov. ۲۰۱۰ and May ۲۰۱۱. ۳۶۸ specimens were measured and weighed. The values of the exponent b in the length-weight relationships (LWRs) ranged from ۲.۵۳۵۸ to ۳.۳۶۱۳ and those of the length-length relationship (LLRs) ranged from ۰.۸۷۱۷ to ۰.۹۴۱۲. Also, relative condition factor (Krel) ranged from ۱.۰۰?۰.۱۱ to ۱.۳۰?۰.۲۱ and Fulton?s condition factor (K) ranged from ۰.۸۰?۰.۰۵ to ۱.۶۰?۰.۱۸ for all species.

کلیدواژه ها:

Fish Cyprinidae ، length ، weight relationship ، length relationship ، Caspian Sea ، Anzali Wetland