Star Ascidian (Botryllus schlosseri)

Also known as Calloused Tunicate, Colonial Ascidian, Colonial Ascidian Tunicate, Compound Ascidian, Golden Star Ascidian, Golden Star Tunicate, Harbour Star Ascidian, Ladder Tunicate, Lined Compound Ascidian, Pacific Star Tunicate, Schlosser's Ascidian, Scholoser's Sea Squirt, Sea Squirt, Tiger Tunicate, Tunicate, Zooids

Description

Also known as Calloused Tunicate, Colonial Ascidian, Colonial Ascidian Tunicate, Compound Ascidian, Golden Star Ascidian, Golden Star Tunicate, Harbour Star Ascidian, Ladder Tunicate, Lined Compound Ascidian, Pacific Star Tunicate, Schlosser's Ascidian, Scholoser's Sea Squirt, Sea Squirt, Tiger Tunicate, Tunicate, Zooids.

Found in colonies spreading on and encrusting in an invasive manner over algae beds, hard surfaces and slow moving submerged objects like boats, invertebrates, plants, etc., over shallow reefs.
They feed on zooplankton
Variable in colour and shape.
Length - 5cm - Spreading
Depth - 0-100m
Worldwide

Ascidian, also known as tunicates because their bodies are covered by a "tunic" a tough cellulose-like covering.
The other common name is sea squirt because when threatened they sometimes eject a jet of water. Ref: https://en.wikipedia.org/wiki/Botryllus_schlosseri

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