, Volume 98, Issue 1, pp 89–99 | Cite as

Observations on the moving colonies of the genus Tethya (Demospongia, Porifera)

I. Behaviour and cytology
  • Lev Fishelson


Observations on two species of sponges, Tethya seychellensis from the Red Sea, and T. aurantium from the Mediterranean Sea revealed that young colonies are able to detach from their sites of settlement and by means of filamentous podia, to move to other sites in the vicinity. These podia are 10–16 mm long extensions of the sponge body wall that bear an adhesive knob on their distal ends. After being attached, the contracting ‘podia’ pull the spherical colonies of 2.0–3.0 cm in diameter, transporting them to a new site. EM observations showed that in the podia the matrix is rich in contractile myocytes, primary archaeocytes, nucleated archaeocytes and scleroblastic cells, each of which takes part in the moving ability of the podium. It was also shown that some of the archaeocytes go over a process of ripening within the podium and produce collagenic filaments deposited in the internal matrix.


Developmental Biology Body Wall Collagenic Filament Sponge Body Young Coloni 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Bagby R (1970) The fine structure of pinacocytes in the marine sponge Microciona prolifera (Ellis and Solander). Z Zellforsch 105:579–594Google Scholar
  2. Bergquist PR, Sinclair MM, Hogg JJ (1970) Adaptation to intertidal existance. In: Fry WG (ed) Reproduction cycles and larval behaviour in Demospongia. Biology of Porifera. Symp Zool Soc London Vol 25. Academic Press, London, pp 247–271Google Scholar
  3. Connes R (1967) Structure et dévelopment des bourgeons chez l'éponge siliceuse Tethya lyncurium Lamark. Recherches expérimentales et cytologiques. Arch Zool Exp Gen 108:157–195Google Scholar
  4. Edmundson CH (1946) Reproduction in Donatia deformis (Thiele). Occas Pag BP Bishop Mus Honolulu 18:271–282Google Scholar
  5. Fell PE (1974) Porifera. In: Giese AC, Pearse JS (ed) Reproduction of marine invertebrates, Vol 1. Academic Press New York London, pp 51–132Google Scholar
  6. Fell PE, Jacob WF (1979) Reproduction and development of Halichondria sp. in the Mystic Estuary, Connecticut. Biol Bull 156:62–75Google Scholar
  7. Fishelson L (1971) Benthic communities of the Red Sea. Mar Biol 10:113–130Google Scholar
  8. Fry WG (ed) (1970) The biology of Porifera. Symp Zool Soc London Vol 25. Academic Press, New York London, p 512Google Scholar
  9. Harrison FW (1974) Histology and histochemistry of developing outgrowths of Corvomeyenia cardensis Harrison (Porifera, Spongilidae). J Morphol 1944:185–194Google Scholar
  10. Harrison FW, Cowden RR (ed) (1976) Aspects of sponge biology. Academic Press, New York London, p 354Google Scholar
  11. Hyman L (1940) The sponges. In: Invertebrata, Vol I. Protozoa through Ctenophora, McGraw Hill, New York, pp 284–364Google Scholar
  12. Junqua S, Robert L, Garrone R, Pavans de Ceccatty M, Vacelet J (1974) Biochemical and morphological studies on collagens of Horny sponges Ircinia: filaments compared to spongins. Connect Tissue Res 2:193–203Google Scholar
  13. Lévi C (1956) Étude de Halisarca de Roscoff. Embryologie et systematique des Démosponges. Arch Zool Exp Gen 93:1–181Google Scholar
  14. Lévi C (1970) Les cellules des Eponges. In: Fry WG (ed) Biology of Porifera. Symp Zool Soc Lond Vol 25, Academic Press, London, pp 353–364Google Scholar
  15. Meglitsch PA (1972) Invertebrate Zoology (sec ed) 834pp. Oxford Univ Press, New YorkGoogle Scholar
  16. Pompini ShA (1976) A cytological study of the Haliclonidae and Callyspongidae (Porifera, Demospongiae, Haplosclerida) In: Harrison FW, Cowden RR (ed) Aspects of sponge biology. Academic Press, New York London pp 215–235Google Scholar
  17. Riedl R (1963) Fauna und Flora der Adria. Ver Paul Parey, Hamburg Berlin p 640Google Scholar
  18. Simpson TL (1963) The biology of the marine sponge Microciona prolifera (Ellis and Solander). I. A study of cellular function and differentiation. J Exp Zool 154:135–151Google Scholar
  19. Simpson TL (1973) Coloniality among the Porifera. In: Boardman RS, Cheetham AH, Oliver WA Jr (ed) Animal colonies; Development and function through time. Dowden, Hutchinson and Ross Publ, Stroudsburg, PA, pp 549–565Google Scholar
  20. Simpson TL (1980) Reproduction process in Sponges: a critical evaluation of current data and views. Int J Invert Repr 2:251–269Google Scholar
  21. Watanabe U (1957) Development of Tethya serica Lebwohl, a Tetraxonian sponge I. Observations on external changes. Nat Sci Rep Ochanomizu Univ 8:(2):97–104Google Scholar
  22. Weisenfels N, Stringer B (1979) Bau und Funktion des Süsswasserschwamms Ephydatia fluviatilis L. (Porifera) VI. Das Individualitätsproblem. Zoomorphologie 92:49–63Google Scholar

Copyright information

© Springer-Verlag 1981

Authors and Affiliations

  • Lev Fishelson
    • 1
  1. 1.Department of Zoology, George S. Wise Faculty of Life sciencesTel Aviv UniversityIsrael

Personalised recommendations