Page 25

Site

Long

Lat

CONU 16

-78.711000

15.847600

COSE 17

-79.812700

15.857600

COSE 18

-79.844000

15.819900

COSE 19

-79.833400

15.838900

COSE 20

-79.867800

15.870800

22  

Description Deeper (20 m) lagoonal reef in southern end of bank. Mixed coral community with large (1-2 m) Colpophyllia and M. annularis colonies, intermixed with smaller massives (30-50 cm) including M. cavernosa, M. franksi, Diploria and others, as well as larger Eusmilia, Madracis decactis and other species. Good CCA on dead skeletons, many that are 50%-70% dead. Some white plague (low) but also found YBD on M. annularis, and BBD on C. natans. Sandflat surrounding corals covered with cyanobacterial mats. Hardground ridges in shallow water. Exposed, high surge. Tops (3-4 m) with small Agaricia, P. astreoides, patches of Millepora complenata, and scattered low densities of larger (20-50 cm) Diploria strigosa and D. clivosa, S. siderea. Dense assemblages of Turbinaria, Sargassum and sea fans on upper shallow surfaces; deeper areas have small stands of P. porites; found 3 A. palmata. Rubble patches in sand between hardground. Area lacked caves and vertical surfaces like that seen in deeper ridges (site 18, 19). Hardground ridges on outside of reef. Large stands of Agaricia tenuifolia at the seaward edge on the base of the reef. These were intermixed with P. porites colonies. A few M. faveolata at the base of the ridges. Large patches of brown clionids on substrate. Several A. palmata colonies. Hardground ridges behind the ancient ridge reef. High relief (3-5 m from base to top of ridge. Moderate sized patch of A. palmata and an abundance of recruits and small encrusting A. palmata on the top; tops of ridges also have Sargassum, Turbinaria, some Millepora, P astreoides. Sides and bases of ledges with higher abundance of Agaricia, P. Porites and areas with massives deeper. Ridges surrounded by a gently sloping hardground with isolated larger (80-100 cm) massives (M. faveolata and Dendrogyra). Patches of deeper coral framework (fused Porites and other species) with lots of holes and crevices; these supported large population (>50 ) of lobsters. Lagoonal patch reef. Circular "dome" 30 m X 40 m wide with moderate density of corals that slopes gradually on all sides. Patch is surround by sloping hardground with scattered massive corals and gorgonians (corals - 1-2/ meter), gradually transitioning into a sand flat. At 15 m depth found two Solenastrea colonies. Coral patch dominated by Agaricia tenufolia colonies (30-100 cm diameter), low density of M. faveolata and other massive corals. Low cover of macroalgae, except Halimeda in among corals. High abundance of Cliona delitrix on massives that encircle the coral patch, including many that have completely killed the corals.

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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