Growth and reproduction of spotted flounder Citharus linguatula (L.) in Edremit Bay (Northern Aegean Sea)
Özet
In this study, some growth characteristics of spotted flounder, Citharus linguatula
(L.) were investigated from 498 specimens collected in the northern Aegean coast of Turkey
from September 2015 to April 2016. Total length ranged from 10.4 to 21.9 cm while weight
varied between 7.6 and 73.67 g. According to the length-weight relationship, positive
allometry was confirmed for both sexes with W= 0.0033L3.298 (R2 =0.902). Von Bertalanfy
growth rate was determined as Lt= 27.64(1-e
-0.21(t+1,64)). As the spotted flounder population
in Edremit Bay consisted of 166 females and 332 males, the sex ratio was skewed in favour
of males (1:2) (p<0.05, t-test). The monthly values of gonadosomatic index (GSI) of females
indicated that spawning occurred mainly between the end of summer and the begining of
winter with a peak in November while the monthly values of condition factor(CF) and
hepatosomatic index (HSI) were the highest in March and November, respectively.
