We test how an understanding of geographical variation in larval fitness in relation to temperature and habitat use could be a useful method to improve our understanding of recruitment and develop better indices of annual recruitment.

The results have implications for our understanding of the recruitment process of the eastern stock of Atlantic bluefin tuna, since they suggest that the combined effects of temporal and spatial variability of the environment drive recruitment success, which has important implications for the management of the species.

Reglero P, Balbín R, Abascal FJ, Medina A, Alvarez-Berastegui D, Rasmuson L, Mourre B, Saber S, Ortega A, Blanco E, de la Gándara F. Pelagic habitat and offspring survival in the eastern stock of Atlantic bluefin tuna. ICES Journal of Marine Science. 2018 Oct 4;76(2):549-58.