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You are here:   OldClasses > 2012 > Ophioplocus imbricatus | Emma Ceccato

 

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Ophioplocus imbricatus
 
(Müller & Troschel 1842)

                        Emma Ceccato (2012)

 

 

Fact Sheet

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Summary


Physical Description


Colouration and Markings


Size and Biometrics


Ecology

Local Description


Micro-habitat and Associations


Life History & Behaviour

Feeding


Reproduction


Locomotion


Anatomy & Physiology

External Morphology


Internal Anatomy


Evolution & Systematics

Fossil Record


Evolution and Origins


Classification and Systematics


Biogeographic Distribution


Conservation & Threats


References & Links

Summary

The cryptic species Ophioplocus imbricatus is a tropical species of brittle star belonging to the group Ophiuroidea within the phylum Echinodermata.The following webpage aims to provide information on the ecology, life history, anatomy, physiology, evolution and distribution of this animal collected off the Southern Great Barrier Reef in Australia.

Within this insight into various aspects of the life history of O.imbricatus, is a comprehensive investigation into the locomotive nature of the brittle star. This study focuses on describing the mode by which it moves, identification of a consistent leading arm used in propulsion and the differences in locomotive ability across sandy and rocky substrates. It was found that O.imbricatus display a 'rowing' mode of locomotion consistent with many other brittle stars of a similar lifestyle as well as evidence of consistency in selection of a lead arm in movement. O.imbricatus travelled competently over sandy substrates although showed minimal movement over rocks with most individuals climbing into crevices upon placement onto the rocks thought to be related to their cryptic nature.

In addition to this investigation into locomotion, a combination of dissections, histological sectioning and biometric data was recorded to provide a comprehensive set of observations in order to detail the life history of this tropical brittle star.



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Classification

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Kingdom
Animalia
Phylum
Echinodermata
Class
Ophiuroidea
Order
Amphilepidida
Superfamily
Ophiolepidoidea