Distribution and abundance of the ichthyoplankton assemblages and its relationships with the geostrophic flow along the southern region of the California Current

Gerardo Aceves-Medina, Sylvia Patricia Adelheid Jimenez-Rosenberg, Ricardo Javier Saldierna-Martínez, Reginaldo Durazo, Alejandro Trinidad Hinojosa-Medina, Martín Enrique Hernández-Rivas, Eduardo González-Rodríguez, Gilberto Gaxiola-Castro

Submited: 2016-06-13 19:06:35 | Published: 2018-03-17 17:39:00

DOI: https://doi.org/10.3856/vol46-issue1-fulltext-12

Abstract


The distribution of ichthyoplankton assemblages (summer 1999 and winter 2000) from the southern region of the California Current (CC) off the Peninsula of Baja California were analyzed. Latitudinal and ocean-coast distribution limits of the assemblages were associated with the presence of cyclonic and anticyclonic eddies of the northern and central region of the Peninsula of Baja California observed through the mesoscale geostrophic flow. The comparative analysis of distribution and abundance of developmental stages from egg to larval stages (preflexion, flexion and postflexion), showed that each mesoscale eddy had a specific ichthyoplankton assemblage, and the ichthyogeographic regionalization of the study area was determined by the presence of eddies and fronts. Retention processes were observed on epipelagic and demersal species where the fish larvae were maintained near the coastal region.

Aceves-Medina G, Jimenez-Rosenberg S, Saldierna-Martínez R, Durazo R, Hinojosa-Medina A, Hernández-Rivas M, González-Rodríguez E, Gaxiola-Castro G. Distribution and abundance of the ichthyoplankton assemblages and its relationships with the geostrophic flow along the southern region of the California Current. Lat. Am. J. Aquat. Res.. 2018;46(1). Available from: doi:10.3856/vol46-issue1-fulltext-12 [Accessed 20 Jan. 2019].
Aceves-Medina, G., Jimenez-Rosenberg, S., Saldierna-Martínez, R., Durazo, R., Hinojosa-Medina, A., Hernández-Rivas, M., González-Rodríguez, E., & Gaxiola-Castro, G. (2018). Distribution and abundance of the ichthyoplankton assemblages and its relationships with the geostrophic flow along the southern region of the California Current. Latin American Journal of Aquatic Research, 46(1). doi:http://dx.doi.org/10.3856/vol46-issue1-fulltext-12