Hormosira banksii
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| Hormosira banksii (Turner) Decaisne, 1808 |
Neptune's necklace (Hormosira banksii) is a type of seaweed found in Australia and New Zealand. It is a common seaweed found in rock pools at mid-tide levels and is characterised by strings of olive-brown hollow beads. Stores gas inside their bead so they can stand up in water. This is to get more light and to move with the flow of the current. Mostly found in the mid-tide zone (littoral zone) or in rock pools to get equal amount of light and sea water. One of their behavioural adaptation is that they live in groups to prevent moisture loss and drying out. Thin leathery beads also has a slimy layer which keeps the moisture locked up inside.
The plants, especially when young, are edible.
They are also known as 'sea grapes' and 'bubbleweed'.
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