Tomás J. auteur aut IRD Panfili Jacques auteur aut IRD text journalArticle eng text/pdf born digital access Otolith microstructures of Vinciguerria nimbaria from the tropical Atlantic Ocean were examined in an attempt to explain the peculiar behaviour of this small mesopelagic fish species. One part of the population forms schools near the surface during the day while the other part makes diel migrations between the surface (night) and the deep waters (day). Thin transverse sections of the otolith (10-40 ?m thickness) showed an extremely clear succession of daily-like microincrements along the dorsal and ventral axis. However, no validation of the frequency of microincrement deposition has been undertaken on this fragile species. Five distinct growth zones were observed along the otoliths of all individuals, representing some common life history events during larval stages, metamorphosis, and juvenile and adult stages. The lifespan is probably very short (120-150 microincrements counted, with a maximum of 240), probably less than 1 year. No differences in growth patterns were recorded between migrating and non-migrating individuals. specialized ATLANTIQUE ZONE TROPICALE 034BIOVER01 46 131-145 2000 0165-7836 https://www.documentation.ird.fr/hor/fdi:010085043 10.1016/S0165-7836(00)00140-5 0165-7836 [F B010085043] https://www.documentation.ird.fr/hor/fdi:010085043 https://www.documentation.ird.fr/intranet/publi/2023-06/010085043.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2022-05-31 2023-06-20 fdi:010085043 fre