Browsing by Author "Quezada, Lyta"
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Item Foraminíferos textuláridos en sedimentos someros recientes de la península antártica y su relación con el área subantártica sudamericana(Universidad de Magallanes, 2012) Hromic, Tatiana; Camblor, María; Quezada, LytaForty nine samples, of superficial marine sediments (< 50m.) from 3 localities: Deception Island, Chile Bay and Fildes Bay, Antarctic península were analysed in order to investigate the foraminiferers of suborder Textulariina Delage y Herouard, 1886. Twenty two species were identified and classiffied en 12 families and 15 generas. The most abundant species were Trochammina malovensis (53,2%), Miliammina arenácea (16,3%) y Reophax dentaliniformis (6,7%). Deception Island contributed with most of the specimens (57%) and Chile Bay with the highest number of species. Thes most common species in the area were Trochammina malovensis (95,9% of the samples), Miliammina arenácea (73,5%), Spiroplectammina biformis (63,3%) and Trochammina squamata (61,2%). Hierarchical cluster analysis and ANOSIM showed there is not communities differences between bays. Ten species (from 22) could not be found in the southernmost southamerica: Alveolophragmiun columbiense, Deuterammina glabra, Eggerella minuta, Pseudobolivina antarctica, Reophax nodulosus, Rhabdammina linnearis, Saccammina sphaerica, Textularia wiesneri, Trochammina malovensis and T. quadriloba. Probably they are endemic species for the Antarctic region.