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Particle capture in ciliary filter-feeding gymnolaemate and phylactolaemate bryozoans - a comparative study

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  • Hans Ulrik Riisgård, Denmark
  • Beth Okamura, Natural History Museum, London, United Kingdom
  • Peter Funch
  • Department of Biological Sciences, Genetics and Ecology

We studied particle capture using video-microscopy in two gymnolaemates, the marine cheilostome Electra pilosa and the freshwater ctenostome Paludicella articulata, and three phylactolaemates, Fredericella sultana with a circular funnel-shaped lophophore, and Cristatella mucedo and Lophophus crystallinus, both with a horseshoe-shaped lophophore. The video-microscope observations along with studies of lophophore morphology and ultrastructure indicated that phylactolaemate and gymnolaemate bryozoans with a diversity of lophophore shapes rely on the same basic structures and mechanisms for particle capture. Our study also demonstrates that essential features of the particle capture process resemble one another in bryozoans, brachiopods and phoronids.

Original languageEnglish
JournalActa Zoologica
Pages (from-to)416-425
Publication statusPublished - 2010

    Research areas

  • bryozoans, filter feeding

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