Glass sponge reefs are unique to the northeast Pacific Ocean. They represent a living window, or a modern analogue, to the past when prehistoric sponge reefs (now extinct) once dominated the Jurassic, but disappeared after the Cretaceous. Although these modern reefs are not the same as the extinct versions, they are analogous in the processes that build and shape reefs created by sponges
Today, sponge reefs create habitat for a diverse community of other animals, several of which are commercially important (crustaceans and fish). The vast amount of water filtered by the sponges also serves as a seafloor conduit for transporting and cycling nutrients.
Video compilation credit: Jackson W.F. Chu
Video Sources Courtesy of Sally Leys / CSSF-ROPOS
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