Fish Of The Intertidal Zone

If you stop and take the time to look closely in the rock pools you may be surprised at the number of small fish you can see swimming around. The majority of the small ones are called triple fins, as they have three dorsal fins. There are 26 species of
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Crabs of Henderson Bay

Crabs live in the intertidal zone and subtidal zones around the world, spending alot of their time hiding under rocks or under ledges. If you do turn rocks over to find crabs and other interestig critters, when you have finished looking, turn the rock back slowly as you may accidently
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Octopus of Henderson Bay

The octopus is an amazing creature that lives here at Henderson Bay and it is very special when you can find one of these shy, elusive creatures. We are fortunate to have two different species of octopus, the common octopus or Macroctopus maorum and the common Sydney octopus or Octopus
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Brittlestars of Henderson Bay

Brittlestars are beautiful creatures but rarely seen, probably because people do not know about them.  They live in the very low intertidal or sub tidal zones, usually under rocks that have sand under them.  When the rocks are turned over they quickly bury themselves into the sand, or move under
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Seahares or Sea Slugs of Henderson Bay

Seahares, or sea slugs are creatures that live in the intertidal zone.  At Henderson Bay we have at least two species, the ragged seahare or Bursatella leachii and the Dolabrifera brazieri. The ragged seahare lives in the sandy lagoon areas of Henderson Bay, growing up to about 70mm long.  The
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Nudibranchs of Henderson Bay

Nudibranchs are a type of shell fish that loose their shell in their early life.  They are recognisable by the “frills” or gills at the back and their snail like antenna at the front. The Black Doris, or Dendrodoris nigra is the one that is the most plentiful at Henderson
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Colourful Chitons of the Intertidal

Chitons live in the intertidal zone and are recognisable by their eight shell parts and are surrounded by a flexible girdle. Here are some of the chitons that are commonly seen around in the intertidal zone at Henderson Bay.  The easiest chitons to find are the snakeskin chitons or Sypharochiton
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Understanding the Tidal Zones

There are four main tidal zones. The intertidal zone which is where the tides come and go and the water levels change have three main zones and in each zone you will find different life forms. High Intertidal Zone This is the area where the high tide covers.  Creatures that
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