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Status of Coral Reefs of the World 2000

Status of Coral Reefs of the World 2000.pdf

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<strong>Status</strong> <strong>of</strong> <strong>Coral</strong> <strong>Reefs</strong> <strong>of</strong> <strong>the</strong> <strong>World</strong>: <strong>2000</strong><br />

Antigua and Barbuda<br />

<strong>Reefs</strong> cover an estimated 25km 2 , with large bank reefs predominating, particularly <strong>of</strong>f <strong>the</strong><br />

north and east coasts <strong>of</strong> Antigua, as well as Middle and Cades <strong>Reefs</strong> <strong>of</strong>f <strong>the</strong> southwest<br />

coast. Patch reefs build up from <strong>the</strong> lagoon floors in Barbuda from depths <strong>of</strong> 20m. Fringing<br />

reefs occur close to <strong>the</strong> shore <strong>of</strong> both islands, most facing channels with high surf and<br />

strong currents, such as those <strong>of</strong>f Judge Bay, Halfmoon Bay and Rendezvous Bay.<br />

Dominica<br />

The island is characterised by steep topography, which limits <strong>the</strong> area available for reef<br />

development. The most significant areas <strong>of</strong> coral community growth on <strong>the</strong> volcanic rock<br />

are primarily in <strong>the</strong> north <strong>of</strong> <strong>the</strong> island, including Marigot, Woodford Hill, Calibishie, Pointe<br />

Round, and lesser reefs in <strong>the</strong> south at Soufriere and Scott’s Head.<br />

St. Lucia<br />

The most extensive coral reefs are found on <strong>the</strong> south and east coasts, whereas <strong>the</strong> best<br />

known reefs for tourism, research and monitoring are on <strong>the</strong> west coast and consist<br />

primarily <strong>of</strong> veneers on volcanic rock.<br />

Grenada<br />

There are mostly patch or fringing reefs along <strong>the</strong> east and south coasts <strong>of</strong> Grenada, and at<br />

Grande Anse and Moliniere on <strong>the</strong> west coast, and around <strong>the</strong> islands <strong>of</strong> <strong>the</strong> Grenadines.<br />

Montserrat<br />

There is a high-energy, erosion-prone coastline with volcanic beaches scattered along <strong>the</strong><br />

coast. There are series <strong>of</strong> small patch reefs interspersed with sand or sediment, most<br />

relatively close to shore, and a few patch reefs in deeper water.<br />

British Virgin Islands<br />

The 60 small islands and rocks <strong>of</strong> <strong>the</strong> British Virgin Islands occupy just over 150km 2 <strong>of</strong> land<br />

on a shelf <strong>of</strong> over 3,000km 2 . This archipelago sits on <strong>the</strong> eastern part <strong>of</strong> <strong>the</strong> Puerto Rican<br />

Bank with average depths from 10m to 30m, with maximums just over 50m. While<br />

mangrove and seagrass communities are found in sheltered bays <strong>of</strong> some islands, <strong>the</strong>y<br />

account for a small percentage <strong>of</strong> <strong>the</strong> marine habitats. Most <strong>of</strong> <strong>the</strong> Bank consists <strong>of</strong> sand<br />

and numerous rock outcrops covered by coral reefs. These vary from small isolated<br />

patches <strong>of</strong> a few square metres to <strong>the</strong> extensive Horseshoe Reef <strong>of</strong> Anegada covering<br />

approximately 77km 2 .<br />

Barbados<br />

The island is surrounded by a narrow 2-3km wide shelf, with 5 distinct sections: west;<br />

south-west; south-east; east; and north, each with particular characteristics. The total area<br />

covered by bank reefs is 4.9km 2 , while fringing reefs cover 1.4km 2 . The west coast is<br />

relatively calm with little or no surf and characterised by a sloping shelf on which fringing<br />

reefs grow out to 300m from <strong>the</strong> beach and to a depth <strong>of</strong> 10m. Extending from <strong>the</strong>se<br />

reefs are <strong>the</strong> patch reefs, which terminate at 30m depth, and seaward <strong>of</strong> <strong>the</strong>se patch reefs<br />

are two bank-barrier reefs approximately parallel to <strong>the</strong> shore. The inner reef is 700-900m<br />

<strong>of</strong>fshore and <strong>the</strong> outer reef between 1300m and 1km. The south west coast is periodically<br />

exposed to Atlantic swells, with a moderate surf which pounds <strong>the</strong> relict fringing reefs,<br />

316

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