Summary
Physical Description
Ecology
Bioerosion
Symbiosis
Life History & Behaviour
Feeding
Reproduction
Larvae
Movement
Anatomy & Physiology
Cell Types
Bioerosion Process
Cell Biology
Evolution & Systematics
Biogeographic Distribution
Conservation & Threats
Independent Project
References & Links |
Summary
Commonly known as the Boring Sponge, the genus of sponge, Cliona, within the family Clionidae, class Demospongiae, has a worldwide distribution. However, within Australia, they can particularly be found at Heron Island on the Southern Great Barrier Reef, Queensland, where Demosponges are a common occurrence.
As its common name suggests, Cliona is known for its bioeroding abilities, boring its way through coral rubble where it can be predominantly found, providing an optimum habitat for this sponge. Generally identifiable from its yellow to brown colour, with little distinguishable features, this Cliona sp. is clearly penetrated within the decaying rubble.
In order to better understand the Cliona physiology, a specific study on Cliona's cell aggregation and self-non-self recognition was undertaken. During this process, it was noted that the yellow sponge tissue changed to a purple colour upon aggravation of the sponge. This appears to be a novel siting as this colour change is not mentioned in any cited literature. Results were observed and recorded.
Location of Heron Island (Source: http://www.usdivetravel.com/R-Australia-Heron.htm)
Image of two individuals of Cliona sp. collected on Heron Island*
*All images displayed throughout the web page were taken by Christelle Legrand unless otherwise specified
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