The structure and productivity of the Thalassia testudinum community in Bon Accord Lagoon, Tobago.
Rev Biol Trop
; 53 Suppl 1: 219-27, 2005 May.
Article
en En
| MEDLINE
| ID: mdl-17465161
The Thalassia testudinum dominated seagrass community in the Buccoo Reef/ Bon Accord Lagoon Marine Park, measures 0.5 km(2) and is part of a contiguous coral reef, seagrass bed and mangrove swamp system in southwest Tobago. 7 testudinum coverage, productivity and percent turnover rates were measured from February 1998 to February 1999 at four sample locations, while total T. testudinum biomass was measured at two locations in the lagoon from 1992-2002. Productivity and turnover rates varied spatially and seasonally. They were higher in the back-reef area than in the mangrove-fringed lagoon, and were lowest at locations near to a sewage outfall. 7 testudinum coverage ranged from 6.6% in the lagoon to 68.5% in the back-reef area while productivity ranged from 3.9 to 4.9 g dry wt m(-2) d(-1) . Productivity and percentage turnover rates were higher in the dry season (January-June) than in the wet season (July-December). Productivity ranged from 3.0 in the wet season to 5.0 g dry wt m2 d-' in the dry season while percentage turnover rates ranged from 4.2% to 5.6%. Total Thalassia biomass and productivity in Bon Accord Lagoon were compared to six similar sites in the Caribbean that also participate in the Caribbean Coastal Marine Productivity Program (CARICOMP). This seagrass community is being negatively impacted by nutrient-enriched conditions.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Monitoreo del Ambiente
/
Ecosistema
/
Hydrocharitaceae
Tipo de estudio:
Evaluation_studies
Límite:
Animals
País/Región como asunto:
Caribe ingles
/
Trinidad y tobago
Idioma:
En
Revista:
Rev Biol Trop
Año:
2005
Tipo del documento:
Article
País de afiliación:
Trinidad y Tobago
Pais de publicación:
Costa Rica