Study of relationship between weight, length and age and fecundity in Capoeta sevangi (De Filippi, 1865) from Arass River basin (West Azarbaijan)

Capoeta sevangi is a native species of the Cyprinidae family in the Caspian Sea basin (Arass River) and is ecologically and economically important. The main purpose of this study to investgate the relationship between absolute and relative fecundity with length, weight and age of this species in the Arass River and sampling was carried out from March to June 2012 using cast-net and gill-net. The result of the study on 72 female specimens of previous stages to prepare spawning showed that the absolute fecundity of this fish is 3056 to 21213 (10590.7±4085.0) eggs and the relative fecundity is 23.5 to 98.3 (41.1±11.9) eggs per gram of body weight and the egg diameter is 0.95 to 1.85 mm measured