Mapping of recent brachiopod microstructure. A tool for environmental studies
Shells of brachiopods are excellent archives for environmental reconstructions in the recent and distant past as their microstructure and geochemistry respond to climate and environmental forcings. We studied the morphology and size of the basic structural unit, the secondary layer fibre, of the she...
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Online Access: | https://hdl.handle.net/11573/1710562 https://doi.org/10.1016/j.jsb.2017.11.011 |
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ftunivromairis:oai:iris.uniroma1.it:11573/1710562 2024-06-23T07:46:23+00:00 Mapping of recent brachiopod microstructure. A tool for environmental studies Facheng Ye Gaia Crippa Lucia Angiolini Uwe Brand Gian Carlo Capitani Maggie Cusack Claudio Garbelli Erika Griesshaber Elizabeth Harper Wolfgang Schmahl Ye, Facheng Crippa, Gaia Angiolini, Lucia Brand, Uwe Carlo Capitani, Gian Cusack, Maggie Garbelli, Claudio Griesshaber, Erika Harper, Elizabeth Schmahl, Wolfgang 2018 https://hdl.handle.net/11573/1710562 https://doi.org/10.1016/j.jsb.2017.11.011 eng eng Elsevier place:Amsterdam volume:201 issue:3 firstpage:221 lastpage:236 numberofpages:16 journal:JOURNAL OF STRUCTURAL BIOLOGY https://hdl.handle.net/11573/1710562 doi:10.1016/j.jsb.2017.11.011 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85036574417 info:eu-repo/semantics/openAccess Biomineral Micromorphometry Ontogenetic variation Geochemical and environmental proxies info:eu-repo/semantics/article 2018 ftunivromairis https://doi.org/10.1016/j.jsb.2017.11.011 2024-06-10T23:45:11Z Shells of brachiopods are excellent archives for environmental reconstructions in the recent and distant past as their microstructure and geochemistry respond to climate and environmental forcings. We studied the morphology and size of the basic structural unit, the secondary layer fibre, of the shells of several extant brachiopod taxa to derive a model correlating microstructural patterns to environmental conditions. Twenty-one adult specimens of six recent brachiopod species adapted to different environmental conditions, from Antarctica, to New Zealand, to the Mediterranean Sea, were chosen for microstructural analysis using SEM, TEM and EBSD. We conclude that: 1) there is no significant difference in the shape and size of the fibres between ventral and dorsal valves, 2) there is an ontogenetic trend in the shape and size of the fibres, as they become larger, wider, and flatter with increasing age. This indicates that the fibrous layer produced in the later stages of growth, which is recommended by the literature to be the best material for geochemical analyses, has a different morphostructure and probably a lower organic content than that produced earlier in life. In two species of the same genus living in seawater with different temperature and carbonate saturation state, a relationship emerged between the microstructure and environmental conditions. Fibres of the polar Liothyrella uva tend to be smaller, rounder and less convex than those of the temperate Liothyrella neozelanica, suggesting a relationship between microstructural size, shell organic matter content, ambient seawater temperature and calcite saturation state. Article in Journal/Newspaper Antarc* Antarctica Sapienza Università di Roma: CINECA IRIS New Zealand Journal of Structural Biology 201 3 221 236 |
institution |
Open Polar |
collection |
Sapienza Università di Roma: CINECA IRIS |
op_collection_id |
ftunivromairis |
language |
English |
topic |
Biomineral Micromorphometry Ontogenetic variation Geochemical and environmental proxies |
spellingShingle |
Biomineral Micromorphometry Ontogenetic variation Geochemical and environmental proxies Facheng Ye Gaia Crippa Lucia Angiolini Uwe Brand Gian Carlo Capitani Maggie Cusack Claudio Garbelli Erika Griesshaber Elizabeth Harper Wolfgang Schmahl Mapping of recent brachiopod microstructure. A tool for environmental studies |
topic_facet |
Biomineral Micromorphometry Ontogenetic variation Geochemical and environmental proxies |
description |
Shells of brachiopods are excellent archives for environmental reconstructions in the recent and distant past as their microstructure and geochemistry respond to climate and environmental forcings. We studied the morphology and size of the basic structural unit, the secondary layer fibre, of the shells of several extant brachiopod taxa to derive a model correlating microstructural patterns to environmental conditions. Twenty-one adult specimens of six recent brachiopod species adapted to different environmental conditions, from Antarctica, to New Zealand, to the Mediterranean Sea, were chosen for microstructural analysis using SEM, TEM and EBSD. We conclude that: 1) there is no significant difference in the shape and size of the fibres between ventral and dorsal valves, 2) there is an ontogenetic trend in the shape and size of the fibres, as they become larger, wider, and flatter with increasing age. This indicates that the fibrous layer produced in the later stages of growth, which is recommended by the literature to be the best material for geochemical analyses, has a different morphostructure and probably a lower organic content than that produced earlier in life. In two species of the same genus living in seawater with different temperature and carbonate saturation state, a relationship emerged between the microstructure and environmental conditions. Fibres of the polar Liothyrella uva tend to be smaller, rounder and less convex than those of the temperate Liothyrella neozelanica, suggesting a relationship between microstructural size, shell organic matter content, ambient seawater temperature and calcite saturation state. |
author2 |
Ye, Facheng Crippa, Gaia Angiolini, Lucia Brand, Uwe Carlo Capitani, Gian Cusack, Maggie Garbelli, Claudio Griesshaber, Erika Harper, Elizabeth Schmahl, Wolfgang |
format |
Article in Journal/Newspaper |
author |
Facheng Ye Gaia Crippa Lucia Angiolini Uwe Brand Gian Carlo Capitani Maggie Cusack Claudio Garbelli Erika Griesshaber Elizabeth Harper Wolfgang Schmahl |
author_facet |
Facheng Ye Gaia Crippa Lucia Angiolini Uwe Brand Gian Carlo Capitani Maggie Cusack Claudio Garbelli Erika Griesshaber Elizabeth Harper Wolfgang Schmahl |
author_sort |
Facheng Ye |
title |
Mapping of recent brachiopod microstructure. A tool for environmental studies |
title_short |
Mapping of recent brachiopod microstructure. A tool for environmental studies |
title_full |
Mapping of recent brachiopod microstructure. A tool for environmental studies |
title_fullStr |
Mapping of recent brachiopod microstructure. A tool for environmental studies |
title_full_unstemmed |
Mapping of recent brachiopod microstructure. A tool for environmental studies |
title_sort |
mapping of recent brachiopod microstructure. a tool for environmental studies |
publisher |
Elsevier |
publishDate |
2018 |
url |
https://hdl.handle.net/11573/1710562 https://doi.org/10.1016/j.jsb.2017.11.011 |
geographic |
New Zealand |
geographic_facet |
New Zealand |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
volume:201 issue:3 firstpage:221 lastpage:236 numberofpages:16 journal:JOURNAL OF STRUCTURAL BIOLOGY https://hdl.handle.net/11573/1710562 doi:10.1016/j.jsb.2017.11.011 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85036574417 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.jsb.2017.11.011 |
container_title |
Journal of Structural Biology |
container_volume |
201 |
container_issue |
3 |
container_start_page |
221 |
op_container_end_page |
236 |
_version_ |
1802645536597082112 |