Batimetría de la plataforma insular alrededor de la Isla del Coco, Costa Rica
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Lizano Rodríguez, Omar Gerardo
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Abstract
La batimetría de la Isla del Coco (Patrimonio
Mundial Cultural y Natural de la UNESCO),
localizada a 500 Km de la costa en el
Pacífico de Costa Rica, no es muy conocida.
Posee un ambiente de una alta biodiversidad
marina y representa además, un sitio de
reunión para una gran cantidad de especies
que se desplazan por todo el Pacífico. La
plataforma insular es irregular tanto en rasgos batimétricos como en extensión. Su límite al
nordeste está definido por la isóbata de 109.8-
128.1 m (60-70 brazas), mientras que la isóbata
de 183 m (100 brazas) de profundidad
define el resto de la isla, a partir de la cual el
gradiente de profundidad cambia drásticamente.
La máxima extensión la presenta al
nordeste con una longitud de aproximadamente
13 km. En este sentido, la ampliación
del área marina según el Decreto No. 15514-
MAG (14 de junio de 1984), el cual estableció
los 1ímites del parque marino en 5 km, no era
suficiente para a proteger la mayor parte de la
plataforma insular. La regulación actual deberá
ser modificada para prohibir las actividades
de pesca a una distancia no menor de 15 km
desde la isla.
The bathymetry of Coco’s Island (UNESCO Natural and Cultural World Patrimony), located approximately 500 km from the Pacific coast of Costa Rica, is not well known. It has a high marine biodiversity and also represents a meeting site for many species traveling throughout the Pacific Ocean. The insular shelf is irregular in extension and also in bathymetric features. The northeast limit is defined by the 109.8-128.1 m contours (60-70 fathoms) while the 183 m contour (100 fathoms) practically defines the rest of the island, from which the depth gradient is steep. The maximum extension is to the northeast with a longitude of 13 km. In this context the present limits of the marine park (5 km), are insufficient to protect the whole insular shelf. Current regulation should be modified to prevent fishing activities less than 15 km from the Island.
The bathymetry of Coco’s Island (UNESCO Natural and Cultural World Patrimony), located approximately 500 km from the Pacific coast of Costa Rica, is not well known. It has a high marine biodiversity and also represents a meeting site for many species traveling throughout the Pacific Ocean. The insular shelf is irregular in extension and also in bathymetric features. The northeast limit is defined by the 109.8-128.1 m contours (60-70 fathoms) while the 183 m contour (100 fathoms) practically defines the rest of the island, from which the depth gradient is steep. The maximum extension is to the northeast with a longitude of 13 km. In this context the present limits of the marine park (5 km), are insufficient to protect the whole insular shelf. Current regulation should be modified to prevent fishing activities less than 15 km from the Island.
Description
Keywords
BATHYMETRY, INSULAR SHELF, COCOS ISLAND, WOLD HERITAGE
Citation
https://revistas.ucr.ac.cr/index.php/rbt/article/view/26306