Istituto di Scienze Marine     
Di Camillo C., Betti F., Bo M., Martinelli M., Puce S., Bavestrello G. Contribution to the understanding of seasonal cycle of Aurelia aurita (Cnidaria: Scyphozoa) scyphopolyps in the northern Adriatic Sea. In: Journal of the Marine Biological Association of the United Kingdom, vol. 90 (6) pp. 1105 - 1110. CAMBRIDGE UNIV PRESS, 2010.
Natural populations of Aurelia aurita scyphopolyps, settled on a wreck in the northern Adriatic Sea, were monitored for 22 months in order to study their seasonal cycle. The trend of Aurelia polyps is strongly dependent on water temperature with a peak of abundance in summer and low densities in winter. The strobilation process occurs only once a year, during the cold season, and the estimated number of released ephyrae is 780,000-2,600,000/m(2). The species has been recorded only on the iron wreck while it is completely lacking from the close rocky cliff of Conero Promontory, suggesting that the increase of underwater structures of anthropogenic origin could be related to the increases of jellyfish biomass.
DOI: 10.1017/S0025315409000848
Subject Aurelia aurita
life history
scyphistoma density
Adriatic Sea

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