Conand François auteur aut IRD Camara S.B. auteur aut IRD Domain François auteur aut IRD text journalArticle eng text/pdf reformatted digital access The growth of three West African marine catfish, Arius heudeloti, A. parkii, A. latiscutatus (Siluriformes, Ariidae), was studied in Guinea by examining sections of the first dorsal spine. Age and growth interpretations were possible for fish up to 40 cm and the three species reveal a similar biology. A single annulus is formed each year at the beginning of the rainy season. Growth seems to be slow, and 40 cm fork length individuals are about 6 years old. Three ariids can reach large sizes (80 cm or larger), which may indicate that the natural mortality is low. This adaptativeness is probably related to their strong body protection against predators, their low fecundity and egg incubation. (Résumé d'auteur) specialized POISSON MARIN AGE PHYSIOLOGIQUE CROISSANCE METHODOLOGIE POISSON CHAT GUINEE 020BIOL 56 1 58-67 1995 0007-4977 https://www.documentation.ird.fr/hor/fdi:42366 0007-4977 [F B42366] https://www.documentation.ird.fr/hor/fdi:42366 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_6/b_fdi_35-36/42366.pdf IRD - Base Horizon / Pleins textes 1995-09-20 2015-07-02 fdi:42366 fre