Marine Biodiversity and Ecosystem Functioning
EU Network of Excellence

 
Main Menu

· Home
· Contacts
· Data Systems
· Documents
· FAQ
· Links
· MarBEF Open Archive
· Network Description
· Outreach
· Photo Gallery
· Quality Assurance
· Register of Resources
· Research Projects
· Rules and Guidelines
· Training
· Wiki
· Worldconference

  

Register of Resources (RoR)

 People  |  Datasets  |  Literature  |  Institutes  |  Projects 

[ report an error in this record ]basket (0): add | show Print this page
Ultrastructure des ossicules d'échinodermes à stéréome non perforé
Dubois, P.; Hayt, S. (1990). Ultrastructure des ossicules d'échinodermes à stéréome non perforé, in: De Ridder, C. et al. (Ed.) Echinoderm Research. Proceedings of the Second European Conference on Echinoderms, Brussels, Belgium, 18-21 September 1989. pp. 217-223
In: De Ridder, C. et al. (1990). Echinoderm Research: Proceedings of the Second European Conference on Echinoderms, Brussels, Belgium, 18-21 September 1989. A.A. Balkema: Rotterdam, Brookfield. ISBN 90-6191-141-9. 343 pp.
Available in  Authors 
Document type: Conference paper
Keyword
    Marine/Coastal
Authors  Top 
  • Dubois, P.
  • Hayt, S.
Abstract
    The ultrastructure of two kinds of ossicles provided with imperforate stereom is described using SEM. The glassy bodies of Leiaster leachi (Asteroidea) consist of compact bulges stemming from the layer of perforate stereom that covers the outer surface of the skeletal plate . The glassy bodies of Stellaster equestris (Asteroidea) are discrete compact structures composed of a root and a lens-like structure that protrudes from the outer surface of the ossicle. The sphaeridia of Psammechinus miliaris and Echinocardium cordatum (Echinoidea) are composed of two distinct skeletal regions, viz. the stalk (which is made of labyrinthic stereom) and the globule (which is principally made of imperforate stereom). Imperforate stereom of both glassy bodies of S. equestris and sphaeridium globules of P. miliaris and E. cordatum probably results from a secondary thickening of an initial low density stereom, which leads to the occlusion of the stereom pores. This hypothesis probably applies to the formation of all optically monocrystalline dense stereoms of echinoderms.
All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors 


If any information here appears to be incorrect, please contact us
Back to Register of Resources
 
Quick links

MarBEF WIKI

Erasmus Mundus Master of Science in Marine Biodiversity and Conservation (EMBC)
Outreach

Science
Responsive Mode Programme (RMP) - Marie Nordstrom, copyright Aspden Rebecca
WoRMS
part of WoRMS logo
ERMS 2.0
Epinephelus marginatus Picture: JG Harmelin
EurOBIS

Geographic System

Datasets

 


Web site hosted and maintained by Flanders Marine Institute (VLIZ) - Contact data-at-marbef.org