Fig. 3From: Reproductive biology of the prawn Melicertus kerathurus (Decapoda: Penaeidae) in Thermaikos Gulf (N. Aegean Sea)Logistic curve for the estimation of length at first maturity based on the occurrence of insemination (a) and on the presence of advanced ovarian stages (vitellogenic and/or mature) (b) of female Melicertus kerathurus in Thermaikos Gulf for the study period 2000–2002Back to article page