Coral Reef Report Cards 2016 St. Vincent and the Grenadines Report Card | Page 5
Protecting Key Habitats
Managed
Key Habitats of St. Vincent and the Grenadines
Three main habitats - coral reefs, mangroves and seagrass beds - support productive
fisheries, stabilize coastlines and host tourism and recreational activities.
• The Nature Conservancy conducted benthic habitat surveys (caribnode.org).
• Contiguous areas with corals, mangroves and seagrasses are important nursery
areas and corridors for resident and transient species.
• Habitats are threatened by direct removal and damage, coastal development,
sedimentation, poor water quality, unsustainable fishing and global climate change.
• St. Vincent and the Grenadines’ government has proactive programs for marine
management, fisheries regulations, youth education and community outreach.
• Tobago Keys Marine Park protects the largest area (52 km 2 ) of corals and seagrass.
168 km 2 of coral reef 23%
0.7 km 2 of
mangroves 59%
28 km 2 of
seagrass 36%
Designated
Coral Mangrove Seagrass
Proposed
Not Protected
St. Vincent & the Grenadines Habitat Types
Threatened
Coral reefs: Largest extent of coral reefs of the 6 EC countries. Types
vary with wave exposure and water depth. West side of islands: leeward,
narrow shelf; shallow patch reefs or rock boulders encrusted with small
corals; deeper reefs with steeper slope, greater coral cover; higher coral,
gorgonian, sponge, and fish abundance. East coast: windward, higher
wave energy, wider shelf, hardground or reef flats, low coral cover and
diversity. Some areas recovering elkhorn. Tobabo Cays: many reef types -
fringing, patch, reef crest, hardbottom. South Coast: large shallow elkhorn
reef, deeper spurs with abundant finger and pencil corals.
Healthy
Stacey Williams Steve Schill
SNLT Myles Phillips
Steve Schill Emma Doyle
Mangroves: Red, black & white mangroves and buttonwood, mostly fringing.
Largest mangrove area: Ashton Harbor, Union Island (red & black); smaller
areas in Clifton Bay, Richmond Bay, Palm Island. St. Vincent mainland:
limited, few left, small area near Blue Lagoon (white). Isle A Quatre: east
side. Mustique: Lagoon Bay (black) and North end near airport (scrub black,
buttonwood). Canouan: Charleston and Carenage Bays. Tobago Cays: small
area Petit Rameau & Petit Bateau. Mangroves have been cleared in several
areas in SVG for marinas and coastal development. Intact mangroves provide
higher quality habitat, protect shorelines, and improve water quality.
Seagrass: St Vincent: Waillibou to South Coast. Largest - Chateaubelair,
Cumberland, Kingstown & Calliaqua Bays and South Coast. Bequia:
west coast & Admiralty Bay; Spring & Friendship Bays to east. Mustique:
Endeavour, L’Ansecoy & Rutland Bays. SW Petit Mustique. Canouan:
Charleston, Maho, Carneage, & Friendship Bays. Tobago Cays: Largest
seagrass bed. Union: entire island, Ashton Harbor, Chatham Bay. Seagrass
beds provide key fish, conch, & lobster nursery areas; sea turtle foraging
areas. Impacted by sediments, pollution, direct damage. Invasive seagrass
present. Healthy seagrass beds stabilize sediments & improve water clarity.
Climate Change Impacts
Biodiversity
Local and regional resource managers need
to incorporate planning for climate change in
their efforts to protect coral reefs.
Rising ocean temperatures increase coral
bleaching, disease and mortality
Oceans will become more acidic as more
atmospheric carbon dioxide is dissolved
reducing calcification in corals and other
calcifying animals
The intensity and frequency of hurricanes
will increase as oceans continue to warm
and will damage corals, coastlines and
infrastructure
Rising sea levels will flood coastal areas
and may reduce light in seagrass beds
and coral reefs
Coral Parrotfish
Sponge Grouper
Seagrass Urchin
Mangrove Conch
Threats
Coastal development, dredging, sand mining
Land based sources of pollution
Unsustainable Tourism Hurricanes
Unsustainable fishing Rising temperatures
Symbol library courtesy
of the Integration and
Application Network,
University of Maryland
Center for Environmental
Science
(ian.umces.edu/symbols/)
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