Free Content The culture, transplantation and storage of Montastraea faveolata, Acropora cervicornis and Acropora palmata: What we have learned so far

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Abstract:

Coral explantation provides new colonies for ship-grounding sites while maintaining the complexity and diversity of the donor site. In our studies, explants included branches (Acropora palmata and A. cervicornis) and cores (Montastraea faveolata). Maintaining explants in closed aquaria, an open seawater system, or on arrays out on the reef was compared. Closed aquaria allow controlled and potentially optimized conditions, however, diseases can quickly eliminate corals. Open seawater systems were found to be viable in the Bahamas (Lee Stocking Island), but less successful in the Florida Keys where nearshore waters are subject to wide temperature variations and turbidity. Corals placed on arrays or directly on the reef substrate had similar survival rates that were not significantly different (M. faveolata 2.5 cm, 9 mo: array 100%, substrate 75%; A. cervicornis, 7 mo: array 91.7%, substrate 75%). We have begun to examine minimum size requirements for M. faveolata explants. Although a single apical polyp of A. cervicornis or several polyps of M. faveolata survive in aquaria, they are unlikely to do so on a reef. In different experiments, survival rates of 2.5 and 5.1 cm diameter cores of M. faveolata on substrate were 75% (11 mo) and 86.1% (12 mo), respectively, and on arrays for 9 mo were 100% and 91.6% (inshore array) — 95.6% (offshore), respectively. With no clear differences apparent, the minimum viable size may be smaller than 2.5 cm in diameter. An ongoing experiment is reexamining this issue with explants of differing size from the same parent colonies.

Document Type: Research Article

Publication date: September 1, 2001

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  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
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