COMPARING LIVING AND HOLOCENE COCCOLITHOPHORE ASSEMBLAGES IN THE AEGEAN MARINE ENVIRONMENTS

 
This item is provided by the institution :

Repository :
Bulletin of the Geological Society of Greece  | ΕΚΤ eJournals
see the original item page
in the repository's web site and access all digital files if the item*
share




2010 (EN)
COMPARING LIVING AND HOLOCENE COCCOLITHOPHORE ASSEMBLAGES IN THE AEGEAN MARINE ENVIRONMENTS (EN)

Dimiza, M. D.
Triantaphyllou, M. V.

Detailed quantitative analyses of coccolithophores performed on the shallow deposits of the southeastern Aegean region (core NS-14, 505 m depth), evidenced that the distribution of calcare-ous nannoplankton assemblages during the last 13 ka BP reflects paleoenvironmental changes which are directly related to parameters such as temperature, salinity, productivity and nutrient flux in the water column. Analysis enabled the separation of the assemblages in four groups. Group A consists of Emiliania huxleyi and the subtropical species Syracosphaera spp. and Rhabdosphaera clavigera, Group B is composed of Helicospaera spp. and Florisphaera profunda, typical species for high productivity conditions in the middle-lower photic zone, Group C consists of Gephyrocapsa oceanica and Braarudosphaera bigelowii, that characterise low salinity conditions and Group D includes Umbilicosphaera spp. and Calcidiscus spp. which are described as relatively eutrophic species. The Holocene assemblages differ distinctly from the living coccolithophore communities in the coastal ecosystems of the Aegean Sea, where only Group A coccolithophores are thriving in the seasonally controlled marine environment. (EN)

info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion

living communities (EN)
Aegean Sea (EN)
Holocene (EN)
coccolithophores (EN)
fossil assemblages (EN)

Ελληνική Γεωλογική Εταιρεία (EL)
Geological Society of Greece (EN)

Δελτίο της Ελληνικής Γεωλογικής Εταιρίας

2010-01-01


Geological Society of Greece (EN)

0438-9557
2529-1718
Δελτίο της Ελληνικής Γεωλογικής Εταιρείας; Vol 43, No 2 (2010): 12th International Conference of the G.S.G.; 602-612 (EL)
Bulletin of the Geological Society of Greece; Vol 43, No 2 (2010): 12th International Conference of the G.S.G.; 602-612 (EN)

Copyright (c) 2017 M. D. Dimiza, M. V. Triantaphyllou (EN)



*Institutions are responsible for keeping their URLs functional (digital file, item page in repository site)