Core-top calibration of δ18O and δ13C of G. ruber (white) and U. mediterranea along the southern Adriatic coast of Italy

Grauel, A. L. and Bernasconi, S.M. (2010) Core-top calibration of δ18O and δ13C of G. ruber (white) and U. mediterranea along the southern Adriatic coast of Italy. Marine Micropaleontology, 77 (3–4). pp. 175-186. ISSN 0377-8398 DOI 10.1016/j.marmicro.2010.09.003

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Abstract

We carried out an extensive survey of the oxygen and carbon isotope composition of the planktic species G. ruber (white) and of the benthic species U. mediterranea along the southern Italian coast of the Adriatic Sea and in the Gulf of Taranto. Comparison with seasonal satellite-based sea surface temperature maps and water column profiles as well as with several sets of water samples allows estimation of the effect of salinity and different nutrient supply on the δ18O and δ13C of foraminifera. The results indicate that G. ruber (white), while being highly affected by different salinity and nutrient distributions related to circulation patterns of major water masses, dominantly record summer temperature conditions. U. mediterranea reflect the recent environmental conditions, such as nutrient supply and bottom water temperature characteristics, along the southern Italian coast and clearly show the transition from a near-coastal eutrophic system to an offshore oligotrophic system.

Item Type:	Article
Subjects:	01 - Climate Change and Earth-Ocean Atmosphere Systems
Divisions:	01 - Climate Change and Earth-Ocean Atmosphere Systems
Journal or Publication Title:	Marine Micropaleontology
Volume:	77
Page Range:	pp. 175-186
Identification Number:	10.1016/j.marmicro.2010.09.003
Depositing User:	Sarah Humbert
Date Deposited:	23 Nov 2012 08:58
Last Modified:	23 Jul 2013 10:05
URI:	http://eprints.esc.cam.ac.uk/id/eprint/2631

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