RT Journal Article
T1 Influencia de la batimetría y tipo de sedimento en la distribución de la microfauna (foraminíferos bentónicos y ostrácodos) en la plataforma marina vasca
T1 Influence of the bathymetry and sediment-type in the microfauna distribution (benthic foraminifers, ostracods) ofthe Basque marine shelf
A1 Pascual, Ana
A1 Martín Rubio, Maite
A1 Martínez García, Blanca
A1 Rodríguez Lázaro, Julio
AB In this work we describe the microfaunal bathymetrical distribution (foraminifers and ostracods) inthe benthos of the Basque continental shelf, by studying the spatial distribution of assemblages. Thisdistribution is controlled by environmental parameters related to depth and type-sediment. A total of 114species of benthic foraminifers and 88 species of ostracods have been taxonomically identified. Mostabundant benthic foraminifer species are Lobatula lobatula, Cibicides refulgens, Gaudryina rudis, Textulariasagittula, Cassidulina laevigata and Globocassidulina subglobosa. Most abundant ostracod species areCarinocythereis carinata, Costa edwardsii, Cytheropteron nodosum, Pterygocythereis ceratoptera andPterygocythereis jonesii. Foraminifer and ostracod assemblages are distributed accordingly with bathymetrydefining three fringes: littoral-inner shelf (<70 m), middle shelf (70-130 m) and outer shelf (>130 m).Inside these bathymetric fringes the sediment-type is the main factor of control for the relative abundanceof the species, in particular the percentage of fine-grained (silt-clay) particles in the sediment. The occurrenceof estuarine species in areas of the Basque shelf evidences the pattern of currents responsible of thesedimentary dynamics in this shelf
YR 2008
FD 2008
LK http://hdl.handle.net/10272/8191
UL http://hdl.handle.net/10272/8191
LA spa
DS Repositorio Institucional de la Universidad de Huelva
RD 29 may 2026