22.03.2013 Views

Beachcombers Field Guide - Department Of Fisheries Western ...

Beachcombers Field Guide - Department Of Fisheries Western ...

Beachcombers Field Guide - Department Of Fisheries Western ...

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Sea star<br />

Echinodermata – Asteroidea<br />

Also known as starfi sh,<br />

these often brightly coloured<br />

echinoderms consist of fi ve or more arms<br />

radiating out from a central disc. The mouth<br />

and tube feet are located on the underside<br />

of its body. Sea stars can be herbivorous<br />

(plant-eating), carnivorous (animal-eating)<br />

or omnivorous (plant- and animal-eating)<br />

feeders. The stomach is pushed outside<br />

their own body through the<br />

mouth to surround<br />

the food. Once<br />

the food is<br />

digested, the<br />

stomach is<br />

pulled back<br />

into the<br />

body of the<br />

sea star.<br />

Did you know?<br />

Many echinoderms are able<br />

to regrow lost or damaged<br />

parts of their bodies, such as an<br />

arm. Some species can even grow<br />

back a complete new body from<br />

a single arm, if part of the central<br />

disc is attached.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!