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Sponges of the New Caledonian lagoon - IRD

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22<br />

<strong>Sponges</strong><br />

<strong>of</strong> <strong>the</strong> <strong>New</strong><br />

Coledonion<br />

Logoon<br />

M<br />

ost divers and reef explorers have undoubtedly seen <strong>the</strong>se amazing,<br />

apparently very simple animals. They are particularly prevalent in <strong>the</strong><br />

upper levels <strong>of</strong> <strong>New</strong> <strong>Caledonian</strong> reefs, providing a spectacular mosaic<br />

<strong>of</strong> diverse shapes and vibrant colours. But perhaps few people<br />

actually knew what <strong>the</strong>y were looking at. <strong>Sponges</strong> remain poorly known even today,<br />

although people are familiar with commercial "bath" sponges mainly from <strong>the</strong> eastern<br />

Mediterranean and Gulf <strong>of</strong> Mexico. Yet even in <strong>the</strong>se commercial species only <strong>the</strong><br />

skeleton is used and consequently few people are aware <strong>of</strong> <strong>the</strong> structure, function<br />

and diversity <strong>of</strong> <strong>the</strong> living sponge animals.<br />

116t Canard In front <strong>of</strong> Noumea peninsula<br />

(photo P. Laboute)<br />

N.W. Lagoon. lie des Pins<br />

(plloto C. Levl)

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