Abstract
The red coral Corallium rubrum (L 1758) is a long-lived, slow-growing gorgonian, endemic to Mediterranean rocky bottoms. Because of its high economic value, red coral has long been harvested, and most populations have been depleted. In the present study, 54 marble tiles were placed in June 2003 within red coral populations over 3 different geographic areas (Calafuria–Livorno and Elba MPA in Italy and Medes Islets MPA, in Spain), on vertical cliffs between 25 and 35 m. In each area 2 different sites were randomly selected. Tiles were subsequently sampled photographically. Between July and August 2003 red coral recruits settled on tiles in all the geographic areas and sites, exhibiting wide variability in their density. On the basis of a 2-factors nested ANOVA a significant variability between different sites at a few hundred metres distance occurred, indicating high variations in the recruitment process within the same red coral population. Mortality, measured in June 2004, widely varied between different geographic areas.
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Acknowledgements
This research was supported by a CSIC/ICM (Spain) – CNR (Italy) common research project: Population dynamics of the red coral. We thank A. Cafazzo for his revision of the English text.
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Bramanti, L., Rossi, S., Tsounis, G. et al. Settlement and early survival of red coral on artificial substrates in different geographic areas: some clues for demography and restoration. Hydrobiologia 580, 219–224 (2007). https://doi.org/10.1007/s10750-006-0452-1
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DOI: https://doi.org/10.1007/s10750-006-0452-1