Microstructures of Antarctic cidaroid spines: diversity of shapes and ectosymbiont attachments
The echinoderm endoskeleton, located in the connective layer of the tegument, is organized into a three-dimensional mesh, the stereom. Among echinoids, the cidaroids depart from this pattern, and the shaft of the spine lacks an epidermis. Thus, the spines lack antifouling protection, allowing ectosy...
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ftvliz:oai:oma.vliz.be:211216 2023-05-15T13:33:16+02:00 Microstructures of Antarctic cidaroid spines: diversity of shapes and ectosymbiont attachments David, B. Stock, S.R. De Carlo, F. Hétérier, V. De Ridder, C. 2009 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=211216 en eng info:eu-repo/semantics/altIdentifier/wos/000267041600004 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1007/s00227-009-1192-3 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=211216 info:eu-repo/semantics/restrictedAccess %3Ci%3EMar.+Biol.+%28Berl.%29+156%288%29%3C%2Fi%3E%3A+1559-1572.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1007%2Fs00227-009-1192-3%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1007%2Fs00227-009-1192-3%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2009 ftvliz https://doi.org/10.1007/s00227-009-1192-3 2022-05-01T09:39:32Z The echinoderm endoskeleton, located in the connective layer of the tegument, is organized into a three-dimensional mesh, the stereom. Among echinoids, the cidaroids depart from this pattern, and the shaft of the spine lacks an epidermis. Thus, the spines lack antifouling protection, allowing ectosymbionts such as bryozoans and foraminiferans to attach. This raises a question about the adaptive role of the cortical layer of the stereom. This study examined the micro- and mesostructure of the spines of 11 cidaroid species collected in the Weddell Sea and Drake Passage, and the nature of their ectosymbiont attachments. Scanning electron microscopy was used to characterize the cortex surface and X-ray micro computed tomography (µCT) to describe the symbiont attachments. Spine microstructure features provide a useful taxonomic character for distinguishing among three species in the genus Ctenocidaris , and challenge a previous parasitic interpretation of cortical filaments on the spines of Rhynchocidaris triplopora . Ectosymbiont attachments were classified as Anchoring, Molding, Cementing, or Corroding. The study suggests that some microstructure features may be protective, keeping the ectosymbionts away from the cortex and loosely attached at intervals along the shaft of the spine, while other micro-structures facilitate attachment over considerable areas of the shaft. Article in Journal/Newspaper Antarc* Antarctic Drake Passage Weddell Sea Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) Antarctic Weddell Sea Drake Passage Weddell Marine Biology 156 8 1559 1572 |
institution |
Open Polar |
collection |
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
op_collection_id |
ftvliz |
language |
English |
description |
The echinoderm endoskeleton, located in the connective layer of the tegument, is organized into a three-dimensional mesh, the stereom. Among echinoids, the cidaroids depart from this pattern, and the shaft of the spine lacks an epidermis. Thus, the spines lack antifouling protection, allowing ectosymbionts such as bryozoans and foraminiferans to attach. This raises a question about the adaptive role of the cortical layer of the stereom. This study examined the micro- and mesostructure of the spines of 11 cidaroid species collected in the Weddell Sea and Drake Passage, and the nature of their ectosymbiont attachments. Scanning electron microscopy was used to characterize the cortex surface and X-ray micro computed tomography (µCT) to describe the symbiont attachments. Spine microstructure features provide a useful taxonomic character for distinguishing among three species in the genus Ctenocidaris , and challenge a previous parasitic interpretation of cortical filaments on the spines of Rhynchocidaris triplopora . Ectosymbiont attachments were classified as Anchoring, Molding, Cementing, or Corroding. The study suggests that some microstructure features may be protective, keeping the ectosymbionts away from the cortex and loosely attached at intervals along the shaft of the spine, while other micro-structures facilitate attachment over considerable areas of the shaft. |
format |
Article in Journal/Newspaper |
author |
David, B. Stock, S.R. De Carlo, F. Hétérier, V. De Ridder, C. |
spellingShingle |
David, B. Stock, S.R. De Carlo, F. Hétérier, V. De Ridder, C. Microstructures of Antarctic cidaroid spines: diversity of shapes and ectosymbiont attachments |
author_facet |
David, B. Stock, S.R. De Carlo, F. Hétérier, V. De Ridder, C. |
author_sort |
David, B. |
title |
Microstructures of Antarctic cidaroid spines: diversity of shapes and ectosymbiont attachments |
title_short |
Microstructures of Antarctic cidaroid spines: diversity of shapes and ectosymbiont attachments |
title_full |
Microstructures of Antarctic cidaroid spines: diversity of shapes and ectosymbiont attachments |
title_fullStr |
Microstructures of Antarctic cidaroid spines: diversity of shapes and ectosymbiont attachments |
title_full_unstemmed |
Microstructures of Antarctic cidaroid spines: diversity of shapes and ectosymbiont attachments |
title_sort |
microstructures of antarctic cidaroid spines: diversity of shapes and ectosymbiont attachments |
publishDate |
2009 |
url |
http://www.vliz.be/nl/open-marien-archief?module=ref&refid=211216 |
geographic |
Antarctic Weddell Sea Drake Passage Weddell |
geographic_facet |
Antarctic Weddell Sea Drake Passage Weddell |
genre |
Antarc* Antarctic Drake Passage Weddell Sea |
genre_facet |
Antarc* Antarctic Drake Passage Weddell Sea |
op_source |
%3Ci%3EMar.+Biol.+%28Berl.%29+156%288%29%3C%2Fi%3E%3A+1559-1572.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1007%2Fs00227-009-1192-3%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1007%2Fs00227-009-1192-3%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000267041600004 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1007/s00227-009-1192-3 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=211216 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s00227-009-1192-3 |
container_title |
Marine Biology |
container_volume |
156 |
container_issue |
8 |
container_start_page |
1559 |
op_container_end_page |
1572 |
_version_ |
1766040611204366336 |