Technical Note: Towards resolving in situ, centimeter-scale location and timing of biomineralization in calcareous meiobenthos – the calcein–osmotic pump method
| Autor: | William G. Phalen, Francesco Mezzo, Marleen Jeglinski, Helena L. Filipsson, Johannes C. Wit, Anna McIntyre-Wressnig, Joan M. Bernhard |
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| Rok vydání: | 2015 |
| Předmět: |
Nutrient cycle
010504 meteorology & atmospheric sciences Meiobenthos lcsh:Life 010502 geochemistry & geophysics 01 natural sciences Foraminifera chemistry.chemical_compound lcsh:QH540-549.5 14. Life underwater Ecology Evolution Behavior and Systematics 0105 earth and related environmental sciences Earth-Surface Processes Mercenaria biology Ecology lcsh:QE1-996.5 biology.organism_classification lcsh:Geology lcsh:QH501-531 Oceanography chemistry Benthic zone Carbonate lcsh:Ecology Calcareous Biomineralization |
| Zdroj: | Biogeosciences, Vol 12, Iss 18, Pp 5515-5522 (2015) |
| ISSN: | 1726-4189 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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