In marine benthic ecosystems, larval connectivity is a major process influencing the maintenance and distribution of invertebrate populations. Larval connectivity is a complex process to study as it is determined by several interacting factors. Here we use an individual-based, biophysical model, to disentangle the effects of such factors, namely larval vertical migration, larval growth, larval mortality, adults fecundity, and habitat availability, for the marine gastropod Concholepas concholepas (loco) in Chile. Lower transport success and higher dispersal distances are observed including larval vertical migration in the model. We find an overall decrease in larval transport success to settlement areas from northern to southern Chile. This spatial gradient results from the combination of current direction and intensity, seawater temperature, and available habitat. From our simulated connectivity patterns we then identify subpopulations of loco along the Chilean coast, which could serve as a basis for spatial management of this resource in the future.
Institut de Recherche pour le Développement (IRD), UMI 209 UPMC UMMISCO, Centre de Recherche Halieutique Méditerranéenne et Tropicale, Sète, France;Institut de Recherche pour le Développement (IRD), LOCEAN-IPSL, UPMC, Paris, France;Institut de Recherche pour le Développement (IRD), UMR MARBEC, Centre de Recherche Halieutique Méditerranéenne et Tropicale, Sète, France;Virginia Institute of Marine Science, College of William & Mary, Gloucester Point, Virginia, United States of America;Centro de Estudios Avanzados en Zonas Aridas (CEAZA), Facultad de Ciencias del Mar, Universidad Católica del Norte, Coquimbo, Chile;Centro Universitario Región Este, Universidad de la República, Montevideo, Uruguay;Institut de Recherche pour le Développement (IRD), UMI 209 UPMC UMMISCO, Centre de Recherche Halieutique Méditerranéenne et Tropicale, Sète, France
Recommended Citation:
Lysel Garavelli,François Colas,Philippe Verley,et al. Influence of Biological Factors on Connectivity Patterns for Concholepas concholepas (loco) in Chile[J]. PLOS ONE,2016-01-01,11(1)