Hydrobiologia

, 595:93 | Cite as

Global diversity of bryozoans (Bryozoa or Ectoprocta) in freshwater

FRESHWATER ANIMAL DIVERSITY ASSESSMENT

Abstract

The present study considers 88 bryozoan species occurring in freshwater: 69 phylactolaemate and 19 gymnolaemate species. Roughly 49% of these species are confined to one zoogeographical region. The cosmopolitan status of species like Fredericella sultana, Plumatella repens or P. emarginata has to be reconsidered. Among the Phylactolaemata, which are phylogenetically older than the Gymnolaemata, the gelatinous species (Lophopodidae, Pectinatellidae, Cristatellidae) are more primitive than the branching tubular species (Plumatellidae, Fredericellidae).

Keywords

Bryozoa Ectoprocta Phylactolaemata Gymnolaemata Phylogeny Zoogeography 

References

  1. Backus, B. T. & W. C. Banta, 2002. NOR-chromosome morphology and evidence for rDNA selection in phylactolaemates. Hydrobiologia 482: 89–95.CrossRefGoogle Scholar
  2. Brien, P., 1960. Classe des Bryozoaires. In Grassé, P. (ed.), Traité de Zoologie, 5(2), Paris, Masson: 1054–1335.Google Scholar
  3. Bushnell, J. H., 1973. The freshwater Ectoprocta: a zoogeographical discussion. In Larwood G.P. (ed.), Living and Fossil Bryozoa. Academic Press, London & New York: 503–521.Google Scholar
  4. Geimer, G. & J. A. Massard, 1986. Les Bryozoaires du Grand-Duché de Luxembourg et des régions limitrophes. Travaux Scientifiques du Musée d’Histoire Naturelle de Luxembourg, 7: 1–187.Google Scholar
  5. Lacourt, A. W., 1968. A monograph of the freshwater Bryozoa: Phylactolaemata. Zoölogische Verhandelingen 93: 1–159.Google Scholar
  6. Mukai, H., 1999. Comparative morphological studies on the statoblasts of lower phylactolaemate bryozoans, with discussion on the systematics of Phylactolaemata. Science Reports of the Faculty of Education Gunma University 46: 51–91.Google Scholar
  7. Mundy, S. P., 1980. Stereoscan studies of phylactolaemate bryozoan statoblasts including a key to the statoblasts of the British and European Phylactolaemata. Journal of Zoology 192: 511–530.CrossRefGoogle Scholar
  8. Prenant, M. & G. Bobin, 1956. Bryozoaires. Première partie. Entoproctes, Phylactolèmes, Cténostomes. Faune de France, 60: 1–398.Google Scholar
  9. Rogick, M. D., 1941. Studies on freshwater Bryozoa. X. The occurrence of Plumatella casmiana in North America. Transactions of the American Microscopical Society, 60: 211–220.CrossRefGoogle Scholar
  10. Ryland, J., 2005. Bryozoa: an introductory overview. Denisia 16: 9–20.Google Scholar
  11. Todd, J. A., 2000. The central role of Ctenostomes in bryozoan phylogeny. In Herrera Cubilla, A. & J. B. C. Jackson (eds), Proceedings of the 11th International Bryozoology Association Conference. Balboa (Panama), Smithsonian Tropical Research Institute: 104–135.Google Scholar
  12. Toriumi, M., 1956. Taxonomical study on fresh-water Bryozoa. XVII. General consideration: Interspecific relation of described species and phylogenic consideration. Science Reports of Tohoku University Series IV (Biology) 22: 57–88.Google Scholar
  13. Vinogradov, A. V., 2004. Taxonomical structure of Bryozoans Phylactolaemata. Vestnik Zoologii 38(6): 3–14.Google Scholar
  14. Walzl, M. G. & E. Wöss, 2005. The soft body parts of freshwater bryozoans depicted by scanning electron microscopy. Denisia 16: 49–58.Google Scholar
  15. Wiebach, F., 1960. Bryozoa. In Brohmer, P. et al. (eds), Die Tierwelt Mitteleuropas, 1(8): 1–56, pl. 1–19.Google Scholar
  16. Wiebach, F., 1975. Specific structures of sessoblasts (Bryozoa, Phylactolaemata). In Pouyet, S. (ed.), Bryozoa 1974. Documents des Laboratoires de Géologie de la Faculté des Sciences de Lyon H.S. 3(1): 149–154, pl. 1–3.Google Scholar
  17. Wiebach, F. & J. L. d’Hondt, 1978. Bryozoa. In Illies, J. (ed.), Limnofauna Europaea, 2. Aufl. G. Fischer, Swets & Zeitlinger, Stuttgart, New York, Amsterdam: 492–493.Google Scholar
  18. Wood, T. S., 2002. Freshwater bryozoans: a zoogeographical reassessment. In Wyse Jackson P. N., C. J. Buttler & M. E. Spencer Jones (eds), Bryozoan Studies 2001. Swets & Zeitlinger, Lisse: 339–345.Google Scholar
  19. Wood, T. S. & M. Lore, 2005. The higher phylogeny of Phylactolaemate bryozoans inferred from 18S ribosomal DNA seqences. In Moyano, H. I., J. M. Cancino & P. N. Wyse Jackson (eds), Bryozoan Studies 2004. A.A. Balkema Publishers, Leiden, London: 361–367.Google Scholar
  20. Wood, T. S. & B. Okamura, 2005. A new key to the freshwater bryozoans of Britain, Ireland and Continental Europe, with notes on their ecology. Freshwater biological Association Scientific Publication 63: 1–113.Google Scholar

Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  1. 1.Musée national d’histoire naturelleLuxembourgLuxembourg
  2. 2.EchternachLuxembourg

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