Author/Authors :
Babahajiani P نويسنده Department of Animal and Aquatic Sciences, Agriculture School, Sanandaj Branch, Islamic Azad University, Sanandaj, Kurdistan, Iran. , Shokrollahi B نويسنده Department of Animal and Aquatic Sciences, Agriculture School, Sanandaj Branch, Islamic Azad University, Sanandaj, Kurdistan, Iran. , Gharibkhani M نويسنده -Department of Fisheries, Astara Branch, Islamic Azad University, Astara, Iran.
Abstract :
There are many differences between sex of fishes in many traits before and after puberty. Differences in growth rate, size, behavior patterns, and breeding time between males and females have great economic importance (Turan and Cek, 2007)