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Citation link: http://nbn-resolving.de/urn:nbn:de:gbv:46-00102427-17
00102427-1.pdf
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The high-resolution bioarchive Arctica islandica - reconstructing recent environmental history of the North Sea from bivalve shells


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Other Titles: Das hochauflösende Bioarchiv Arctica islandica - Rekonstruktion vergangener Umweltbedingungen in der Nordsee anhand von Muschelschalen
Authors: Krause-Nehring, Jacqueline 
Supervisor: Brey, Thomas 
1. Expert: Brey, Thomas 
2. Expert: Bischof, Kai
Abstract: 
Bivalve shells are often used to reconstruct past environmental conditions at the time of carbonate formation. The aim of this thesis is to optimize the process of reconstructing environmental history of marine ecosystems from bivalve shells (Arctica islandica) and to contribute to a better understanding of the correlations between shell chemistry and environmental parameters. In two chapters I examine how sample preparation and data collection may affect the outcome of subsequent trace element analyses in A. islandica shells. The other two chapters of the thesis focus on the applicability of specific trace element to calcium ratios in A. islandica shells to reconstruct the recent environmental history of the German Bight (North Sea). I analyzed Pb/Ca ratios as a tracer of anthropogenic lead pollution as well as Ba/Ca and Mn/Ca ratios as indicators of the pelagic primary production of the German Bight.
Keywords: Arctica islandica, bivalve, bioarchive, biogenic carbonate, trace elements, lead, barium, manganese, gasoline lead pollution, ocean production
Issue Date: 19-Dec-2011
Type: Dissertation
URN: urn:nbn:de:gbv:46-00102427-17
Institution: Universität Bremen 
Faculty: FB2 Biologie/Chemie 
Appears in Collections:Dissertationen

  

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