SPATIAL VARIATION IN SPONGE COMMUNITIES OF THE EASTERN COAST OF BAHÍA DE COCHINOS, CUBA
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| Autores: | , , , |
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| 格式: | artículo original |
| 狀態: | Versión publicada |
| Fecha de Publicación: | 2009 |
| 實物特徵: | The sponge communities at four locations on the east coast of Bahía de Cochinos were surveyed in October 2002. At each location, sampling sites were established in the ecological zones of patch reef (3 m), shallow terrace (6-10 m), and deep terrace (15 m). The line-transect method with a 10 m line as sampling unit was used to measure sponge bottom coverage, and a 1 m square grid was used to quantify sponge community density. Species heterogeneity and species richness indices showed variability among sites and tended to increase with depth. Thirty species belonging to 19 families and 21 genera were found. The most common species were Mycale laevis, Aplysina cauliformis, Cliona aprica, Aplysina fistularis, and Ectyoplasia ferox, which comprised 48% of the total individuals identified. Sponge density was moderate (2-8 specimens/m2) and showed variation among sites. The nearest station to open sea showed a lower density value, possibly due to disturbance from the passage of a hurricane in 2001. The general condition of the community was good, based on the diversity values reached and the predominant species, although evidence of impacts from recent hurricane were observed. |
| País: | Portal de Revistas UNA |
| 機構: | Universidad Nacional de Costa Rica |
| Repositorio: | Portal de Revistas UNA |
| 語言: | Español |
| OAI Identifier: | oai:ojs.www.una.ac.cr:article/170 |
| 在線閱讀: | https://www.revistas.una.ac.cr/index.php/revmar/article/view/170 |
| Palabra clave: | Sponges communities coral reefs Cuba Esponjas comunidades arrecifes coralinos recifes coralinos |