The zinc isotopic composition of siliceous marine sponges: Investigating nature's sediment traps ...
The zinc (Zn) content and isotopic composition of marine biogenic opal have the potential to yield information about the nutrient availability, utilization and export of particulate organic matter from surface to deep waters. Here, we report the first measurements of the Zn isotopic composition of d...
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Online Access: | https://dx.doi.org/10.3929/ethz-b-000071945 http://hdl.handle.net/20.500.11850/71945 |
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ftdatacite:10.3929/ethz-b-000071945 2024-04-28T08:39:33+00:00 The zinc isotopic composition of siliceous marine sponges: Investigating nature's sediment traps ... Hendry, Katharine R. Andersen, Morten B. 2013 application/pdf https://dx.doi.org/10.3929/ethz-b-000071945 http://hdl.handle.net/20.500.11850/71945 en eng ETH Zurich Particulate organic matter Porifera Spicules Zinc isotopes article-journal Text ScholarlyArticle Journal Article 2013 ftdatacite https://doi.org/10.3929/ethz-b-000071945 2024-04-02T12:32:08Z The zinc (Zn) content and isotopic composition of marine biogenic opal have the potential to yield information about the nutrient availability, utilization and export of particulate organic matter from surface to deep waters. Here, we report the first measurements of the Zn isotopic composition of deep-sea marine sponge skeletal elements – spicules – collected in the Southern Ocean. Our results highlight different Zn uptake and isotopic fractionation behavior between the two major siliceous sponge clades (hexactinellids and demosponges), which is most likely linked to sponge feeding strategy. Hexactinellid spicule Zn isotopic compositions are not fractionated with respect to seawater, most likely due to Zn transport via the open internal structure of the sponges. In contrast, demosponge spicules exhibit a wide range of Zn isotopic compositions that are related to the opal Zn concentration, most likely reflecting variable Zn isotope compositions in the organic matter particles on which they feed, and internal ... : Chemical Geology, 354 ... Article in Journal/Newspaper Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) |
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DataCite Metadata Store (German National Library of Science and Technology) |
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language |
English |
topic |
Particulate organic matter Porifera Spicules Zinc isotopes |
spellingShingle |
Particulate organic matter Porifera Spicules Zinc isotopes Hendry, Katharine R. Andersen, Morten B. The zinc isotopic composition of siliceous marine sponges: Investigating nature's sediment traps ... |
topic_facet |
Particulate organic matter Porifera Spicules Zinc isotopes |
description |
The zinc (Zn) content and isotopic composition of marine biogenic opal have the potential to yield information about the nutrient availability, utilization and export of particulate organic matter from surface to deep waters. Here, we report the first measurements of the Zn isotopic composition of deep-sea marine sponge skeletal elements – spicules – collected in the Southern Ocean. Our results highlight different Zn uptake and isotopic fractionation behavior between the two major siliceous sponge clades (hexactinellids and demosponges), which is most likely linked to sponge feeding strategy. Hexactinellid spicule Zn isotopic compositions are not fractionated with respect to seawater, most likely due to Zn transport via the open internal structure of the sponges. In contrast, demosponge spicules exhibit a wide range of Zn isotopic compositions that are related to the opal Zn concentration, most likely reflecting variable Zn isotope compositions in the organic matter particles on which they feed, and internal ... : Chemical Geology, 354 ... |
format |
Article in Journal/Newspaper |
author |
Hendry, Katharine R. Andersen, Morten B. |
author_facet |
Hendry, Katharine R. Andersen, Morten B. |
author_sort |
Hendry, Katharine R. |
title |
The zinc isotopic composition of siliceous marine sponges: Investigating nature's sediment traps ... |
title_short |
The zinc isotopic composition of siliceous marine sponges: Investigating nature's sediment traps ... |
title_full |
The zinc isotopic composition of siliceous marine sponges: Investigating nature's sediment traps ... |
title_fullStr |
The zinc isotopic composition of siliceous marine sponges: Investigating nature's sediment traps ... |
title_full_unstemmed |
The zinc isotopic composition of siliceous marine sponges: Investigating nature's sediment traps ... |
title_sort |
zinc isotopic composition of siliceous marine sponges: investigating nature's sediment traps ... |
publisher |
ETH Zurich |
publishDate |
2013 |
url |
https://dx.doi.org/10.3929/ethz-b-000071945 http://hdl.handle.net/20.500.11850/71945 |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_doi |
https://doi.org/10.3929/ethz-b-000071945 |
_version_ |
1797570530115584000 |