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| Titel |
Technical Note: Towards resolving in situ, centimeter-scale location and timing of biomineralization in calcareous meiobenthos – the calcein–osmotic pump method |
| VerfasserIn |
J. M. Bernhard, W. G. Phalen, A. McIntyre-Wressnig, F. Mezzo, J. C. Wit, M. Jeglinski, H. L. Filipsson |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 12, no. 18 ; Nr. 12, no. 18 (2015-09-28), S.5515-5522 |
| Datensatznummer |
250118102
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| Publikation (Nr.) |
 copernicus.org/bg-12-5515-2015.pdf |
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| Zusammenfassung |
| Insights into oceanographic environmental conditions such as
paleoproductivity, deep-water temperatures, salinity, ice volumes, and
nutrient cycling have all been obtained from geochemical analyses of
biomineralized carbonate of marine organisms. However, we cannot fully
understand geochemical proxy incorporation and the fidelity of such in
species until we better understand fundamental aspects of their ecology such
as where and when these (micro)organisms calcify. Here, we present an
innovative method using osmotic pumps and the fluorescent marker calcein to
help identify where and when calcareous meiofauna calcify in situ. Method
development initially involved juvenile quahogs (Mercenaria
mercenaria); subsequent method refinement involved a neritic benthic
foraminiferal community. Future applications of this method will allow
determining the in situ growth rate in calcareous organisms and provide
insights about microhabitats where paleoceanographically relevant benthic
foraminifera actually calcify. |
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