Beachcombers Field Guide - Department Of Fisheries Western ...
Beachcombers Field Guide - Department Of Fisheries Western ...
Beachcombers Field Guide - Department Of Fisheries Western ...
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Cuttlebone<br />
Mollusca – Cephalopoda<br />
Cuttlebones are<br />
the internal shells of cuttles<br />
(or cuttlefi sh). A cuttlebone largely<br />
consists of tiny gas-fi lled chambers<br />
that help the cuttle move up and down<br />
through the water column, particularly at<br />
night when they ascend to catch surfacedwelling<br />
fi sh. Like their relatives, squid<br />
and octopus, cuttles have a relatively<br />
short lifespan of 18 months<br />
to two years.<br />
Photo: Shannon Conway<br />
Did you know?<br />
Some cuttlebones have teeth<br />
marks on them that may indicate<br />
what marine creature killed and<br />
ate the cuttle – a dolphin, sea lion,<br />
shark or large bony fi sh.
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