Zoeken
Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.
Boekenmand
Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).
RSS
Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.
nieuwe zoekopdracht
Recruitment, early survival and growth of the Mediterranean red coral Corallium rubrum (L 1758), a 4-year study
Bramanti, L.; Magagnini, G.; De Maio, L.; Santangelo, G. (2005). Recruitment, early survival and growth of the Mediterranean red coral Corallium rubrum (L 1758), a 4-year study. J. Exp. Mar. Biol. Ecol. 314(1): 69-78. https://dx.doi.org/10.1016/j.jembe.2004.08.029
In: Journal of Experimental Marine Biology and Ecology. Elsevier: New York. ISSN 0022-0981; e-ISSN 1879-1697
|  |
| Trefwoorden |
Corallium rubrum (Linnaeus, 1758) [WoRMS]
Marien/Kust |
| Author keywords |
artificial substrates; Corallium rubrum; growth rate; life history; octocorals; recruitment; western Mediterranean |
| Auteurs | | Top |
- Bramanti, L.
- Magagnini, G.
- De Maio, L.
- Santangelo, G.
|
|
|
| Abstract |
Recruitment, early survival and growth rates of the precious Mediterranean red coral Corallium rubrum (L 1758) are poorly known. We examined these life history traits by means of artificial long-term settlement plates. Eighteen marble tiles placed off the coast of Leghorn (Tuscany, Italy) at two depths (25 and 35 m) were photographed monthly over the 4-year period from 1998 to 2002. Overall, 864 transparencies were examined to follow the individual life histories of red coral colonies belonging to four successive cohorts. Red coral planulae settled on tiles each year between July and September. Overall, 388 settlers colonized the tiles (244 at 25 m and 144 at 35 m), and their respective densities varied between 12.37±6.1 and 2.75±2.4 dm−2. Heavy mortality affected these colonies (−24.35±9.12 colonies % y−1), but, after 4 years, the tiles still harboured a persistent population (19±4.97 and 9.75±2.87 colonies dm−2, respectively, at 25 and 35 m) with positive net recruitment rates. Only in 1999 did the net recruitment rate show a negative trend, although only at the shallower depth. At the same time (late summer 1999), a thermal anomaly affected several epibenthic communities in the Ligurian Sea. After 4 years, the tiles were removed, and the colonies that settled on them were measured. The average annual growth rate of colonies was low (0.62±0.19 mm y−1 in diameter), and a marked reduction in growth with age was observed. Our findings suggest that the populations of this slow-growing long-lived octocoral exhibit a high capacity for colonization and seem to be quite resilient to environmental variability. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
