Hydrodynamics of sponge pumps and evolution of the sponge body plan

Research output: Contribution to journalJournal articleResearchpeer-review

12 Downloads (Pure)

Abstract

Sponges are suspension feeders that filter vast amounts of water. Pumping is carried out by flagellated chambers that are connected to an inhalant and exhalant canal system. In 'leucon' sponges with relatively high-pressure resistance due to a complex and narrow canal system, pumping and filtering are only possible owing to the presence of a gasket-like structure (forming a canopy above the collar filters). Here we combine numerical and experimental work, and demonstrate how sponges that lack such sealing elements are able to efficiently pump and force the flagella driven flow through their collar filter, thanks to the formation of a 'hydrodynamic gasket' above the collar. Our findings link the architecture of flagellated chambers to that of the canal system, and lend support to the current view that the sponge aquiferous system evolved from an open-type filtration system, and that the first metazoans were filter feeders.
Original languageEnglish
Article numbere61012
JournaleLife
Number of pages25
ISSN2050-084X
DOIs
Publication statusPublished - 2020

Bibliographical note

Copyright Asadzadeh et al. This article is distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use and redistribution provided that the original author and source are credited.

Fingerprint Dive into the research topics of 'Hydrodynamics of sponge pumps and evolution of the sponge body plan'. Together they form a unique fingerprint.

Cite this