INVESTIGADORES
BERNASCONI Emiliana
artículos
Título:
Benthic foraminiferal morphogroups on the Argentine Continental Shelf
Autor/es:
ALPERIN, MARTA; CUSMINSKY, GABRIELA; BERNASCONI, EMILIANA
Revista:
JOURNAL OF FORAMINIFERAL RESEARCH
Editorial:
CUSHMAN FOUNDATION FORAMINIFERAL RES
Referencias:
Lugar: Berkeley; Año: 2011 vol. 41 p. 155 - 166
ISSN:
0096-1191
Resumen:
The aim of this study is to evaluate the relative influence ofabiotic factors on the association and spatial distribution ofrecent benthic foraminiferal morphogroups in the Argentinecontinental shelf at 40uS environments as a first step towardsestablishing their paleoecological significance. Foraminiferaare classified into five morphogroups: tapered, elongateflattened,milioline, planoconvex, and rounded-planispiral.Compositional data analysis techniques were used to definemorphogroup assemblages, and Classification and RegressionTree Analysis was used to identify environmental variables.The distribution of the morphogroup assemblages wererecognized was driven by complex interactions betweenenvironmental factors. The most important factor is temperature,although salinity, substrate grain size, and hydrodynamicenergy also correlate with the distribution of morphogroups.The morphogroups analysis shows potential fordetermining present and past environments where the autoecologyof the species is unknown or where there is doubtregarding their taxonomic classification.