Seasonal and interannual variability in growth and maturation of winter-spawning Illex argentinus (Cephalopoda, Ommastrephidae) in the Southwest Atlantic, Life history strategies of the squid, Illex illecebrosus, in the Northwest Atlantic, Larval rearing of an African catfish, Heterobranchus longifilis, (Teleostei, Clariidae): a comparison between natural and artificial diet, Effect of food ration on estrogen and vitellogenin plasma levels, fecundity and larval survival in captive sea bass, Dicentrarchus labrax: preliminary observations, Growth, food conversion and agonistic behaviour in common dentex (Dentex dentex) juveniles fed on pelleted moist and dry diets, Lactic acid bacteria increase the resistance of turbot larvae, Scophthalmus maximus, against pathogenic vibrio, Sperm features in turbot (Scophthalmus maximus): a comparison with other freshwater and marine fish species, Bar codes in fisheries research: development of the “ichthyometer”.