Some Biological Aspects of the Crucian Carp, Carassius gibelio Bloch, 1782 Inhabiting in Eğirdir Lake

Abstract

This study was carried out between March 2001 to January 2003 in Eğirdir Lake. A total of 283 Carassıus gibelio specimens were monthly collected and examined. It was determined that 40.64% of the samplings were females (n=115) and 59.36%males (n=168). The measured mean fork length and weight values for females, males and combined sexes were 19.29±0.46cm,236.6±15.8g; 19.34±0.37cm, 217.9±10.5g; 19.32±0.28cm, 225.5±8.97g respectively. In addition to this, the calculated lengthweight relationships were W=0.012*FL3.266 for females, W=0.0174*FL3.121 for males, W=0.0151*FL3.177 for pooled data. According to montly changes of Gonadosomatic Index and Fulton’s Condition factor values spawning were occurred between April and December