TY - JOUR T1 - Modelling seasonal and annual variation in size at functional maturity in the European lobster (Homarus gammarus) from self-sampling data A1 - Laurans,Martial A1 - Fifas,Spyros A1 - Demaneche,Sebastien A1 - Brerette,Stéphane A1 - Debec,Olivier AD - IFREMER, F-29280 Plouzane, France. UR - https://archimer.ifremer.fr/doc/00000/7319/ DO - 10.1093/icesjms/fsp166 KW - Self sampling KW - Homarus gammarus KW - Functional maturity KW - Catchability N2 - Fishers from Le Croisic (France) measure all the lobsters (Homarus gammarus) they capture, indicating their sex and whether the females are ovigerous or non-ovigerous. Between 2003 and 2006 and mainly between April and September, 16 884 lobsters were measured in this manner. These self-sampled data were used to study catchability and functional maturity of lobsters. The sex ratio was 50%, and catchability did not change if a female was ovigerous or non-ovigerous. With the help of a logistic function, a relationship was established between body size and the proportion of ovigerous females. For the study area, 100% of the females were mature upon reaching a carapace length (CL) of 115 mm, and the proportion of ovigerous females reached 70% each year. The L50 value evolved over a CL of 103–106 mm. From the size when 100% of the females matured (115 mm), there was a larger proportion of ovigerous females than in other studies carried out in more northern European areas. Y1 - 2009/10 PB - Oxford university press JF - ICES Journal of Marine Science SN - 1054-3139 VL - 66 IS - 9 SP - 1892 EP - 1898 ID - 7319 ER -