The life cycle of Laodicea indica (Laodiceidae,Leptomedusae, Cnidaria) |
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| Authors: | Bouillo J. Boero F. Fraschetti S. |
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| Affiliation: | (1) Laboratoire de Zoologie, Université Libra de Bruxelles, Avenue F.D. Roosevelt 50, 1050 Bruxelles, Belgium;(2) Dipartimento di Biologia, Università di Lecce, 73100 Lecce, Italy;(3) Istituto di Scienze Ambientali Marine, Università di Genova, CP79, 16132 Santa Margerita Ligure, Italy |
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| Abstract: | The life cycle of Laodicea indica is described. In the Bismarck Sea this species shows a normal alternation of generations in the wet season; but in the dry season the cycle is contracted, and planulae give rise to gonothecae without formation of a hydroid colony. Medusae are liberated about 3 d after planula settlement. This life cycle pattern is previously unreported in hydromedusae. The possible adaptive value of such a life cycle and the evolution of polyp reduction in hydromedusan life cycles are discussed. |
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| Keywords: | Hydrozoa life cycles Laodicea |
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