RT Journal Article
T1 Nuevas aportaciones a la biogeografía de cocolitóforos en el Pacífico ecuatorial y suroriental
T1 New contributions to the biogeography of coccolithophores in the Equatorial and Southeastern Pacifc
A1 Saavedra Pellitero, Mariem
A1 Flores, José Abel
A1 Sierro, Francisco Javier
AB For this proposal 114 surface sediment samples from the Equatorial and Southwestern Pacific were analysed,recovered during three cruises: Génesis III-RR9702A, NEMO-Me0005A and PUCK: Valparaiso-Talcahuano.A total of 19 different species (or groups in some cases) were identified using petrographic microscope.Five biogeographic coccolithophore zones have been established taking into account the distributionpatterns of the taxa and some physical parameters such as temperature and salinity. These zones are:-Tropical North, characterized by an assemblage mainly composed of Gephyrocapsa oceanica,Florisphaera profunda, «small» Gephyrocapsa and Gephyrocapsa muellerae.- Equatorial, basically dominated by placoliths.-Tropical South, where F.profunda, G.oceanica, «small» Gephyrocapsa, Calcidiscus leptoporus, Emilianiahuxleyi and G.muellerae are dominant. Characteristic taxa are Umbilicosphaera sp., Calcisosoleniasp., Oolithotus sp., Syracosphaera spp. and Rhabdosphaera clavigera.-Subtropical South, with an assemblage dominated by gephyrocapsids, F.profunda, C.leptoporus andHelicosphaera carteri.-Transitional-Subpolar, where «small» Gephyrocapsa is the most abundant taxa, although E.huxleyi,G.muellerae, C.leptoporus, G.oceanica, F.profunda, C.pelagicus (very abundant in this zone) andH.carteri are also well represented
YR 2007
FD 2007
LK http://hdl.handle.net/10272/8426
UL http://hdl.handle.net/10272/8426
LA spa
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026