Formaciones coralinas del área de Santa Marta: estado y patrones de distribución espacial de la comunidad bentónica.
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Date
2008
Metadata
Show full item recordAlternative Title
Coral formations in Santa Marta area: Status and spatial distribution patterns of the benthic community.Abstract
Se evaluaron 20 formaciones coralinas del área de Santa Marta en términos de: 1) composición y abundancia de los componentes del sustrato y 2) prevalencia de enfermedades coralinas y blanqueamiento. Para obtener la información se utilizaron bandas de 10 x 1 m y 10 x 2 m respectivamente. Se registró un total de 33 especies de corales duros. Las algas y los corales fueron los componentes de mayor cobertura, sin embargo sus promedios variaron ampliamente en el área de estudio (coral= 4.0 ± 0.9 %-62.0 ± 7.2 %; algas = 30.6 ± 11.0 %-78.3 ± 3.0 %). Las especies de coral con coberturas promedio más altas fueron Colpophyllia natans, Diploria strigosa, Acropora palmata y Montastraea cavernosa (7.5 ± 2.7 %, 6.7 ± 2.1 %, 4.0 ± 2.8 % y 3.8 ± 1.0 %, respectivamente). La prevalencia de enfermedades y blanqueamiento fue menor al 4 %. Las formaciones con coberturas de coral más altas se encontraron asociadas al Parque Nacional Natural Tayrona (Gayraca, Aguja, Chengue y Neguanje), mientras que las menores coberturas coralinas se hallaron cercanas a los centros urbanos (Santa Marta y El Rodadero). Aunque existen formaciones coralinas en buen estado en el área de Santa Marta, la tendencia generalizada es que las algas sean el componente predominante del sustrato arrecifal.Twenty coral formations were evaluated in the area of Santa Marta in terms of: 1) composition and abundance of the principal substrate categories and 2) prevalence of coral diseases and bleaching. To obtain the information, bands of 10 x 1 m and 10 x 2 m were used, respectively. A total of 33 species of hard corals were registered. Algae and corals were the components with major cover, nonetheless, averages varied widely in the study area (coral= 4.0 ± 0.9 %-62.0 ± 7.2 %; algae = 30.6 ± 11.0 %-78.3 ± 3.0 %). The coral species with the highest averages cover were Colpophyllia natans, Diploria strigosa, Acropora palmata, and Montastraea cavernosa (7.5 ± 2.7 %, 6.7 ± 2.1 %, 4.0 ± 2.8 %, and 3.8 ± 1.0 %, respectively). Prevalence of coral diseases and bleaching were lower than 4 %. The reefs with the highest coral covers were associated to the Parque Nacional Natural Tayrona (Gayraca, Aguja, Chengue and Neguanje), whereas the lowest values were found near the urban centers (Santa Marta and El Rodadero). Even though there are some coral reefs showing relatively good conditions in the area of Santa Marta, the widespread trend is that algae are the predominant component of reef substratum.
Journal
Boletín de investigaciones marinas y costerasVolume
37Issue/Article Nr
2Publisher or University
INVEMAR, Santa Marta (Colombia)Resource/Dataset Location
http://www.invemar.org.co/siad/descarga.jsp?type=documento&id=868Collections