Antarctic urchin ctenocidaris speciosa spines: Lessons from the deep
Ocean acidification is leading to changes in the oceanic carbonate system. As a result, calcium carbonate saturation horizon is shallowing, especially at high latitudes. Biogenic high magnesium-calcites could be particularly vulnerable, since their solubility is either similar or greater than that o...
Main Authors: | , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2013
|
Subjects: | |
Online Access: | http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/168198 |
id |
ftunivbruxelles:oai:dipot.ulb.ac.be:2013/168198 |
---|---|
record_format |
openpolar |
spelling |
ftunivbruxelles:oai:dipot.ulb.ac.be:2013/168198 2023-05-15T13:42:08+02:00 Antarctic urchin ctenocidaris speciosa spines: Lessons from the deep Catarino, Ana A.I. Guibourt, Virginie Moureaux, Claire De Ridder, Chantal Compère, Philippe Dubois, Philippe 2013 No full-text files http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/168198 en eng uri/info:scp/84888253571 http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/168198 Cahiers de biologie marine, 54 (4 Océanographie biologique Antarctica Calcium carbonate saturation state Cidaroid spines Ctenocidaris speciosa Ocean Acidification info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 2013 ftunivbruxelles 2022-06-12T20:36:17Z Ocean acidification is leading to changes in the oceanic carbonate system. As a result, calcium carbonate saturation horizon is shallowing, especially at high latitudes. Biogenic high magnesium-calcites could be particularly vulnerable, since their solubility is either similar or greater than that of aragonite. Cidaroid urchins have magnesium-calcite spines covered by a polycrystalline cortex which becomes exposed to seawater when mature (not covered by an epidermis). However, deep species live at low calcium carbonate saturation states, especially at high latitudes. We describe here the morphology and the magnesium content of Ctenocidaris speciosa spines collected at different depths from the Weddell Sea (Antarctica) and relate the features with seawater calcium carbonate saturation. We observed that the spines cortex of C. speciosa presented a thicker inner cortex layer and a lower [Mg2] below the aragonite saturation horizon. We suggest that the cortex of cidaroid spines is able to resist to low calcium carbonate saturation state. SCOPUS: cp.j info:eu-repo/semantics/published Article in Journal/Newspaper Antarc* Antarctic Antarctica Ocean acidification Weddell Sea DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) Antarctic Weddell Weddell Sea |
institution |
Open Polar |
collection |
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
English |
topic |
Océanographie biologique Antarctica Calcium carbonate saturation state Cidaroid spines Ctenocidaris speciosa Ocean Acidification |
spellingShingle |
Océanographie biologique Antarctica Calcium carbonate saturation state Cidaroid spines Ctenocidaris speciosa Ocean Acidification Catarino, Ana A.I. Guibourt, Virginie Moureaux, Claire De Ridder, Chantal Compère, Philippe Dubois, Philippe Antarctic urchin ctenocidaris speciosa spines: Lessons from the deep |
topic_facet |
Océanographie biologique Antarctica Calcium carbonate saturation state Cidaroid spines Ctenocidaris speciosa Ocean Acidification |
description |
Ocean acidification is leading to changes in the oceanic carbonate system. As a result, calcium carbonate saturation horizon is shallowing, especially at high latitudes. Biogenic high magnesium-calcites could be particularly vulnerable, since their solubility is either similar or greater than that of aragonite. Cidaroid urchins have magnesium-calcite spines covered by a polycrystalline cortex which becomes exposed to seawater when mature (not covered by an epidermis). However, deep species live at low calcium carbonate saturation states, especially at high latitudes. We describe here the morphology and the magnesium content of Ctenocidaris speciosa spines collected at different depths from the Weddell Sea (Antarctica) and relate the features with seawater calcium carbonate saturation. We observed that the spines cortex of C. speciosa presented a thicker inner cortex layer and a lower [Mg2] below the aragonite saturation horizon. We suggest that the cortex of cidaroid spines is able to resist to low calcium carbonate saturation state. SCOPUS: cp.j info:eu-repo/semantics/published |
format |
Article in Journal/Newspaper |
author |
Catarino, Ana A.I. Guibourt, Virginie Moureaux, Claire De Ridder, Chantal Compère, Philippe Dubois, Philippe |
author_facet |
Catarino, Ana A.I. Guibourt, Virginie Moureaux, Claire De Ridder, Chantal Compère, Philippe Dubois, Philippe |
author_sort |
Catarino, Ana A.I. |
title |
Antarctic urchin ctenocidaris speciosa spines: Lessons from the deep |
title_short |
Antarctic urchin ctenocidaris speciosa spines: Lessons from the deep |
title_full |
Antarctic urchin ctenocidaris speciosa spines: Lessons from the deep |
title_fullStr |
Antarctic urchin ctenocidaris speciosa spines: Lessons from the deep |
title_full_unstemmed |
Antarctic urchin ctenocidaris speciosa spines: Lessons from the deep |
title_sort |
antarctic urchin ctenocidaris speciosa spines: lessons from the deep |
publishDate |
2013 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/168198 |
geographic |
Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctica Ocean acidification Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctica Ocean acidification Weddell Sea |
op_source |
Cahiers de biologie marine, 54 (4 |
op_relation |
uri/info:scp/84888253571 http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/168198 |
_version_ |
1766163021550321664 |