Kalkan, 2005



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No detailed citation.

Associated characteristics


Species Development state Trait Primary Data Secondary Data
Leuciscus cephalus Female Maximum GSI value 13.56 [May] 13.56 percent
Leuciscus cephalus Female Age at sexual maturity 3 [Male] 3.0 years
Leuciscus cephalus Female Resting period < 0.5 from July until December 0.5 months
Leuciscus cephalus Female Onset of oogenesis After August the gonads begin to develop and the values of GSI again start to increase gradually until November ['August', 'November']
Leuciscus cephalus Female Intensifying oogenesis activity April-May [From 0.95 in March to 13.56 in May] ['April', 'March', 'May']
Leuciscus cephalus Egg Oocyte diameter 0.62-1.06 [Ovarium diameter] but all studies 0.55-1.50 0.84 mm
Leuciscus cephalus Spawning conditions Spawning season April-July but vary from May-June to May-September ['April', 'May', 'September', 'June', 'July']
Leuciscus cephalus Female Weight at sexual maturity 0.265-0.500 [Female] 0.3825 kg
Leuciscus cephalus Female Length at sexual maturity 26.1-32.93 [Female] 29.515 cm
Leuciscus cephalus Male Length at sexual maturity 30.7 30.7 cm
Leuciscus cephalus Male Weight at sexual maturity 0.397 0.397 kg
Leuciscus cephalus Female Age at sexual maturity 2-5 [Female] 3.5 year