The elusive life cycle of scyphozoan jellyfish - Metagenesis revisited

Janja Ceh, Jorge Gonzalez, Aldo S. Pacheco, José M. Riascos

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

47 Citas (Scopus)


Massive proliferations of scyphozoan jellyfish considerably affect human industries and irreversibly change food webs. Efforts to understand the role of jellyfish in marine ecosystems are based on a life cycle model described 200 years ago. According to this paradigm the pelagic medusae is considered seasonal and alternates with the benthic polyp stage from which it derives. However, we provide evidence that a) the occurrence of several species of medusae is not restricted to a season in the year, they overwinter, b) polyp- and medusa generations are neither temporally nor spatially separated, and c) "metagenesis" which is defined as the alternation between sexual and asexual generations does not always occur. Hence we recommend additions to the current model and argue that the scyphozoan life cycle should be considered multi-modal, rather than metagenetic. The implications of these findings for jellyfish proliferations, including possible consequences and associated environmental drivers, are discussed.

Idioma originalInglés
Número de artículo12037
PublicaciónScientific Reports
EstadoPublicada - 8 jul. 2015
Publicado de forma externa


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