Invertebrates
Vase Sponge
Ircinia campana · also called bell sponge
A vase sponge stands upright on the reef like a large, weathered urn, drawing seawater steadily in through its walls and pushing a filtered stream back out through the open top. It never moves and never stops working, quietly filtering an outsized volume of water relative to its own size every single day.
Overview
The vase sponge, Ircinia campana, is a large, upright filter feeder found on coral reefs across the tropical western Atlantic, including the Caribbean and Gulf of Mexico. Its fibrous, flexible structure supports a substantial vase-shaped body that shelters numerous small reef organisms.
A structure built to last, and to filter
Supported by fibrous spongin rather than hard mineral spicules, a vase sponge combines a flexible, resilient structure with a genuine capacity to regenerate from fragments, making it a durable, quietly essential piece of reef infrastructure.
Status
Least Concern — common and widespread across suitable reef habitat throughout the tropical western Atlantic.
Vase Sponge: common questions
How much water can a vase sponge actually filter?
Like many sponges, a vase sponge is capable of filtering a remarkably large volume of surrounding seawater relative to its own body size over the course of a day, drawing water in through countless tiny surface pores and expelling it through a large central opening, a process that plays a meaningful role in maintaining local reef water clarity.
What gives a vase sponge its structural support?
A vase sponge's structure is supported largely by a network of fibrous protein material called spongin, rather than the hard, glass-like or chalky mineral spicules that provide structural support in several other sponge groups, giving the vase sponge a somewhat more flexible overall structure.
Can a vase sponge regrow if it is damaged or broken?
Yes, like many sponge species, a vase sponge has a notable capacity for regeneration, and even a relatively small fragment broken off from the main body is capable of potentially developing into an entirely new, complete individual under suitable reef conditions.
Do other animals live inside a vase sponge?
Yes, the large, stable structure of a vase sponge frequently provides shelter and habitat for numerous small reef organisms, including various invertebrates and small fish, which take advantage of the sponge's size and relatively undisturbed interior space for protection from predators.