Great Barrier Reef: Stuff That Doesn’t Move

This post is all about the corals and grasses.

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There were some pretty cool fan corals.

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There were many sponges and sea squirts.

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The corals were sometimes really bright colours.

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Other times they just grew in cool shapes.

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Everything on the the reef grows on top of each other if it can.

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Lots of the coral grow in cool shapes.

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Okay so urchins do move but really slowly. They hide during the day so they don’t get eaten.

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Even in tiny areas there are so many different types of coral.

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We weren’t really sure what this was. It is brightly coloured so it might be a worm or sea slug.

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Most of the “stuff that doesn’t move” filter the water for plankton to eat.

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The bommies are giant pillars of corals, built on old coral, with new coral growing on top.

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The day and night can look quite different with some organisms closed up.

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Even within individual corals cool patterns form.

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We always had to keep our distance so as not to damage the coral although sometimes this was because it might sting.

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Matt liked to try to get close as we progressed through more and more dives.

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3 Responses to Great Barrier Reef: Stuff That Doesn’t Move

  1. The photos are beautiful!!

  2. Wow! Your pictures are excellent! They would make a great calendar

  3. Avatar Bart Hazes
    Bart Hazes says:

    The worm/sea slug is a pleurobranch (member of molluscs). You normally only see them at night.