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Morphological abnormalities in the stauromedusa Haliclystus auricula (Cnidaria) and their possible causes

Published online by Cambridge University Press:  25 March 2008

Carolina J. Zagal
Carolina J. Zagal*
Affiliation:
Centre for Research on the Ecological Impacts of Coastal Cities, Marine Ecology Laboratories A11, the University of Sydney, New South Wales 2006, Australia
*
Correspondence should be addressed to: Carolina J. Zagal Centre for Research on the Ecological Impacts of Coastal Cities Marine Ecology Laboratories A11The University of SydneyNew South Wales 2006Australia email: [email protected]
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Abstract

Morphological abnormalities were observed in a population of the stauromedusa Haliclystus auricula in southern Chile. A total of 144 abnormal specimens was observed out of 3790 Stauromedusae sampled. The following abnormalities are described: individuals lacking arms (73%), with more than eight anchors (11%), more than eight arms (8%), lacking anchors (4%) and one individual with tentacles in abnormal locations. An individual with two peduncles, one with two mouths and one twin-like individual are recorded for the first time in this species. Their possible causes are discussed.

Keywords

abnormalitiesMedusaeHaliclystusmorphological variationStauromedusae
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 88 , Issue 2 , March 2008 , pp. 259 - 262
Copyright
Copyright © Marine Biological Association of the United Kingdom 2008

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References

REFERENCES

Amor, A. (1962) Sobre “Stauromedusae” del Litoral Patagonico, Haliclystus auricula (Rathke). Notas del Museo de la Plata, Zoologia 20, 89–96.Google Scholar
Arai, M.N. (1997) A functional biology of Scyphozoa. London: Chapman and Hall.Google Scholar
Berrill, M. (1962) The biology of three New England Stauromedusae, with a description of a new species. Canadian Journal of Zoology 40, 1249–1262.CrossRefGoogle Scholar
Clark, H.J. (1878) Lucernariae and their allies. A memoir on the anatomy and physiology of Haliclystus auricula and other Lucernarians, with a discussion of their relations to other Acalephae; to Beroids, and Polypi. Smithsonian Contributions to Knowledge 242, 1–130.Google Scholar
Collins, A.G. and Daly, M. (2005) A new deepwater species of stauromedusae, Lucernaria janetae (Cnidaria, Staurozoa, Lucernariidae), and a preliminary investigation of stauromedusan phylogeny based on nuclear and mitochondrial rDNA data. Biological Bulletin. Marine Biological Laboratory, Woods Hole 208, 221–230.CrossRefGoogle Scholar
Davenport, J.D. (1998) Note on the trophic relationships of the stauromedusa Haliclystus antarcticus from subantarctic South Georgia. Journal of the Marine Biological Association of the UK 78, 663–664.CrossRefGoogle Scholar
Gershwin, L.A. (1999) Clonal and population variation in jellyfish symmetry. Journal of the Marine Biological Association of the UK 79, 993–1000.CrossRefGoogle Scholar
Gwilliam, G.F. (1956) Studies on western North American Stauromedusae. San Diego, USA: University of California Press.Google Scholar
Hargitt, C.W. (1901) Variation among Hydromedusae. Biological Bulletin. Marine Biological Laboratory, Woods Hole 2, 221–255.CrossRefGoogle Scholar
Hirano, Y.M. (1997) A review of a supposedly circumboreal species of stauromedusa, Haliclystus auricula (Rathke, 1806). Proceedings of the Sixth International Conference on Coelenterate Biology 247–252.Google Scholar
Hornell, J. (1893) Abnormalities in Haliclystus (Lucernaria) octoradiatus (preliminary note). Natural Science 3, 33–34.Google Scholar
Kikinger, R. and Salvini-Plawen, L.V. (1995) Development from polyp to stauromedusa in Stylocoronella (Cnidaria: Scyphozoa). Journal of the Marine Biological Association of the UK 75, 899–912.CrossRefGoogle Scholar
Müller, O.F. (1776) Zoologiae Danicae Prodromous no. 2818. (Not seen).Google Scholar
Nogueira Junior, M. and Haddad, M.A. (2006) Morphological variations in Olindias sambaquiensis (Cnidaria, Hydrozoa, Limnomedusae) in the coast of Guaratuba, Parana, Brazil. Revista Brasileira de Zoologia 23, 879–882.CrossRefGoogle Scholar
Otto, J.J. (1978) The settlement of Haliclystus Planulae. In Chia, F.S. and Rice, M.E. (eds) Settlement and metamorphosis of marine invertebrate larvae. New York: Elsevier/North-Holland Biomedical Press, pp. 13–22.Google Scholar
Quezada, A.E. (1970) Haliclystus auricula (Rathke, 1806) (Coelenterata, Scyphozoa, Stauromedusae) en el Golfo de Arauco (Chile). Boletín de la Sociedad Biológica de Concepción 42, 75.Google Scholar
Uchida, T. (1928) Short notes on Medusae. 1. Medusae with abnormal symmetry. Annotationes Zoologicae Japonenses 11, 373.Google Scholar
Uchida, T. (1929) Studies on the Stauromedusae and Cubomedusae, with special reference to their metamorphosis. Japanese Journal of Zoology 2, 103.Google Scholar
Uchida, T. and Hanaoka, K.-I. (1933) On the morphology of a stalked medusa, Thaumatoscyphus disctinctus Kishinouye. Journal of the Faculty of Science, Hokkaido University Series 6 (Zoology) 2, 135–153.Google Scholar
Uchida, T. and Hanaoka, K.-I. (1934) Anatomy of two stalked medusae with remarks on the distribution of the stauromedusae in Japan. Journal of the Faculty of Science, Hokkaido University Series 6 (Zoology) 2, 211–239.Google Scholar
Zagal, C.J. (2004a) Diet of Haliclystus auricula in southern Chile. Journal of the Marine Biological Association of the UK 84, 337–340.CrossRefGoogle Scholar
Zagal, C.J. (2004b) Population biology and habitat of the stauromedusa Haliclystus auricula in southern Chile. Journal of the Marine Biological Association of the UK 84, 331–336.CrossRefGoogle Scholar
Zagal, C.J. and Hermosilla, C. (2001) Guide to marine invertebrates of Valdivia. Santiago: Quebecor World Chile, S.A.Google Scholar