Larval fish assemblages in waters off the central Pacific coast of Mexico
Spatial and seasonal variation of the ichthyoplankton assemblages was analysed using monthly samples collected during a 1 year cycle off the central Pacific coast of Mexico. Zooplankton samples were collected at 12 stations during 11 months, from December 1995 to December 1996. The analysis of coastal oceanographic conditions revealed two main seasonal patterns, one related to the California Current influence and the other a tropical one. A temporal recomposition of the ichthyoplankton assemblages was found to be related to each oceanographic pattern. During the California Current period (January-May) the larval fish assemblage was respresented mainly by Auxis sp., Bentosema panamense, Cetengraulis mysticetus, Opistonema sp., Symphurus elongatus, Gobionellus sp., Dormitator latifrons and Bregmaceros bathymaster. The tropical season assemblage (July, October and November) was represented by Harengula thrissina, Euthynnus lineatus, Vinciguerria lucetia, Syacium ovale, and representatives of the Eleotridae and Pomacentridae. An inshore-offshore gradient was observed during the tropical oceanographic periods, with a thermic stratification of the water column over the shelf. Conversely, during the California Current period, with coastal advective processes, the assemblages of fish larvae were more homogeneous. Although a mixed, richer faunistic composition was expected in this transitional area, the overall biogeographic affinity of the surveyed community remained stable even in contrasting conditions.
Main Authors: | Franco Gordo, María del Carmen Doctora autor/a 15077, Godínez Domínguez, Enrique Doctor autor/a 15078, Suárez Morales, Eduardo Doctor autor/a 2036 |
---|---|
Format: | Texto biblioteca |
Language: | eng |
Subjects: | Larvas de peces, Peces, Distribución geográfica, |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
La relación entre la duración de la vida larvaria y la extensión del rango geográfico en peces de arrecifes del pacifico oriental tropical
Published: (2000) -
Diversity of ichthyoplankton in the central Mexican Pacific a seasonal survey
by: Franco Gordo, María del Carmen Doctora autor/a 15077, et al. -
Patrones de reclutamiento y mecanismos de transporte costeros de esta dios tempranos de desarrollo de peces y crustáceos decápodos en el área de Santa Marta, caribe Colombiano
by: López, Ángela Cecilia, et al.
Published: (2000) -
Interannual variability of the diversity and structure of ichthyoplankton assemblages in the central Mexican Pacific
by: Franco Gordo, María del Carmen Doctora 15077, et al. -
A seasonal survey of the fish larvae community of the central Pacific coast of Mexico
by: Franco Gordo, María del Carmen Doctora 15077, et al.