sweeper tentacle

What is sweeper tentacle?

sweeper tentacle meaning A coral polyp tentacle that has an increased number of nematocysts and elongates in order to ‘sting’ neighboring corals and sessile invertebrates. A tool in the competition for space and resources

Image of sweeper tentacle
A hammer coral (right) thrusts out a sweeper tentacle towards a mushroom anemone (left). (Photo: Scott Brooks)

 

reference: Coral Reef Information System – Glossary

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