Page 23

Table. 4. Description of reefs. Site

Long

Lat

COAL 1

-79.322910

16.010370

COAL 2

-79.294230

16.025930

COAL 3

-79.304500

16.015400

COAL 4

-79.294100

16.065200

COAL 5

-79.298870

16.086380

COAL 6

-79.298930

16.098380

COAL 7

-79.290400

16.052800

COAL 8

-79.304900

16.105700

20  

Description Hardground with well developed coral community at edge of sand depressions. Corals formed a rim around circular depressions, up to 1 m taller than the surrounding hardground. Isolated corals, lots of sponges and macroalgae on hardground. Rim around depression contained a high diversity of branching (Porites, Madracis) plating (Agaricia) and massive corals, including larger Montastraea (0.5- 1 m), Diploria, Eusmilia and other species. Low relief hardground with high cover (>50%) macroalgae. Patches of low-relief corals, including 0-5-2 m patches of Porites porites, flattened brain corals (Diploria), Porites astreoides, Agaricia, and starlet corals. A few larger Meandrina jacksoni colonies (80-150 cm). Moderate abundance of massive sponges And rope sponges. Also, Siphonodictyon, Cliona, and Trididemnum on colonies and large patches of brown Cliona and red mats of Chondrilla. Low relief reef substrate with moderate cover macroalgae, small Porites astreoides, massive sponges and gorgonians. Occasional larger mounds dominated by Porites porites, M. faveolata. Best coral development on rim of sand filled depressions. Hardground with ridges of coral adjacent to sandflat. Coraldominated areas have large mounds of Porites porites, upright branches of Agaricia, large M. cavernosa and isolated M. faveolata colonies. Nice CCA colonization on dead skeletons; also Halimeda among corals. Substrate has moderate cover of Dictyota, Sargassum, Turbinaria and other brown algae. Coral mounds 1-2 m in height. Diadema common. Hardground with large patches of P. porites, occasional larger M. faveolata colonies, massive and barrel sponges, especially Ircinia. Moderate (30-40%) cover of macroalgae. Hardground with some raised areas built of coral skeletons. Dead coral with CCA and dense mats of Halimeda. Large P. porites, M. faveolata and Diploria colonies, occasional larger Dendrogyra colonies intermixed with smaller D. labyrinthiformis, Agaricia, and S. siderea colonies. Complex hardground with low-relief (1-2 m) ridges formed by skeletons of Agaricia and Porites; dead corals with CCA and moderate cover of Halimeda. Patches of Montastraea, Eusmilia, P. porites, Agaricia, P. astreoides, S. siderea; many of these have dead CCA encrusted patches. Larger ridges with moderate cover of live coral, including dense patches of P. porites, numerous large M. faveolata colonies, Meandrina Siderastrea and Diploria brain corals. A number of the Montastraea colonies have extensive (30-80% old mortality) denuded patches covered with CCA and Peysonnelia. Dead skeletons and substrate covered in CCA, Stypopodium, Dictyota, Halimeda.

Profile for Khaled bin Sultan Living Oceans Foundation

Global Reef Expedition Final Report: Colombia  

In April of 2012, scientists on the Global Reef Expedition conducted habitat mapping and coral reef assessments in the San Andres Archipelag...

Global Reef Expedition Final Report: Colombia  

In April of 2012, scientists on the Global Reef Expedition conducted habitat mapping and coral reef assessments in the San Andres Archipelag...

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