Large‐scale ciliary reversal mediates capture of individual algal prey by Müller's larva

George von Dassow; Christina I. Ellison

doi:10.1111/ivb.12274

journal article Jan 13, 2020

Large‐scale ciliary reversal mediates capture of individual algal prey by Müller's larva

George von Dassow

Christina I. Ellison

Invertebrate Biology Vol. 139 No. 1 · Wiley

View at Publisher Save 10.1111/ivb.12274

Abstract

Abstract

We documented capture of microalgal prey by several species of wild‐caught Müller's larvae of polyclad flatworms. To our knowledge, this is the first direct observation of feeding mechanism in this classical larval type. High‐speed video recordings showed that virtually all captures were mediated by large‐scale transient ciliary reversal over one or more portions of the main ciliary band corresponding to individual lobes or tentacles. Local ciliary beat reversals altered near‐field flow to suck parcels of food‐containing water mouthward. Many capture episodes entailed sufficient coordinated flow disruption that these compact‐bodied larvae tumbled dramatically. Similar behaviors were recorded in at least four distinct species, one of which corresponds to the ascidian‐eating polyclad
Pseudoceros canadensis
.

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References

Details

Published: Jan 13, 2020
Vol/Issue: 139(1)
License: View

Authors

G

George von Dassow

Oregon Institute of Marine Biology and Department of Biology University of Oregon Charleston OR USA

C

Christina I. Ellison

Oregon Institute of Marine Biology and Department of Biology University of Oregon Charleston OR USA

Cite This Article

George von Dassow, Christina I. Ellison (2020). Large‐scale ciliary reversal mediates capture of individual algal prey by Müller's larva. Invertebrate Biology, 139(1). https://doi.org/10.1111/ivb.12274

Large‐scale ciliary reversal mediates capture of individual algal prey by Müller's larva

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