Brochier Timothée auteur aut IRD Mason E. auteur aut IRD Moyano M. auteur aut IRD Berraho A. auteur aut IRD Colas F. auteur aut IRD Sangra P. auteur aut IRD Hernandez-Leon S. auteur aut IRD Ettahiri O. auteur aut IRD Lett Christophe auteur aut IRD text conferencePaper eng text/pdf reformatted digital access The Canary Upwelling System (CUS), a major eastern boundary upwelling system, sustains large crossborder fisheries of small pelagic fish, which poses the question of stock connectivity. Studies suggest that ichthyoplankton transport from the northwest African coast to the Canary Islands (CI) is facilitated by coastal- upwelling associated filaments. Here we analyze connections between larval supply to the CI and sardine and anchovy populations that spawn over the continental shelf. For both species, ichthyoplankton observations (1) at the shelf and (2) near the island of Gran Canaria (GC) are used. Predictions of ichthyoplankton transport to GC are obtained from the Ichthyop Lagrangian transport model, which is forced by a high-resolution hydrodynamic model (ROMS) that reproduces the regional circulation. Results show that upwelling filaments play an important role in the transport of larvae to GC. However, (1) filaments are not the only mechanism, and (2) filament presence does not necessarily imply larval transport. Anchovy and sardine larval presence at GC appears to be independent of the respective adult spawning seasonality. Combining of observed and modeled data does not succeed in reproducing the observed larval patterns at GC. Various hypotheses are proposed to explain this discrepancy in larval transport to GC. specialized FAUNE ICHTYOLOGIQUE ZOOPLANCTON POISSON MARIN ESPECE PELAGIQUE SARDINE LARVE PONTE TRANSPORT UPWELLING HYDRODYNAMIQUE STOCK MODELISATION ANCHOIS ATLANTIQUE ESPAGNE MAROC NORD OUEST 034BIOVER01 032DYNEAU Congress of Marine Sciences, 4., Las Palmas de Gran Canaria (SPA), 2014/06/11-13 164 Las Palmas de Gran Canaria Universidad de Las Palmas de Gran Canaria 2014 https://www.documentation.ird.fr/hor/fdi:010064369 978-84-697-0471-4 [F B010064369] https://www.documentation.ird.fr/hor/fdi:010064369 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers15-04/010064369.pdf IRD - Base Horizon / Pleins textes 2015-04-27 2015-10-09 fdi:010064369 fre