Kelp Home

In most kelp, the thallus (or body) consists of flat or leaf-like structures known as the ‘Blades’.


Blades originate from elongated stem-like structures, called the ‘Stipes’.

The holdfast, a root-like structure, anchors the kelp to the substrate of the ocean.

Gas-filled bladders (pneumatocysts) form at the base of blades to hold the kelp blades close to the surface.

A very clever act of nature on many levels.

If you dive in the waters of the Chatham islands for abalone, cod or crayfish, the thallus is a great hiding place from great white sharks.

This family decided to build their home on the Chatham Islands far from the thallus, but close to the stipes.

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