Species of the Derwent

A variety of unique communities of plants and animals live in the Derwent Estuary, specially adapted for life between land and sea. Little penguins, sea dragons, black swans, platypus and dolphins are just some of the many species that call the estuary home. Explore and learn about these organisms, their role in food webs, and the threats they face.

In this section

Tube worm

Community type

Sessile reefs organisms

Habitat type

Rocky reefs, kelp beds and inter-tidal zone

This fascinating worm remains stationary throughout its life, building a leathery tube around its body using mucus and sand. The spectacular feathery crown of tentacles is used to catch passing food from the water, and move food towards the central mouth. Some can grow up to 10 cm long. The tentacles also act as gills, allowing the worm to source oxygen from the surrounding water. The worm itself can move up and down inside the tube, gripping it with small bristles. When threatened, the worm is able to completely withdraw its delicate tentacles into the tube.

Much of the text within the species area of our website was written by Veronica Thorpe, as part of the Derwent River Wildlife Guide (2000).

The DEP has developed a variety of classroom and outdoor activities, including classroom materials, online resources, interpretive walks, games and sensory experience. These are focused around the key estuary habitats.

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