Control de la calidad ambiental del ecosistema marino de la Bahía de Santiago de Cuba
It is presented an analysis of several indicators of water quality in Santiago de Cuba bay and of the bacteriological state in five of its beaches. Samples were taken in surface and 8 m deep. A low transparency of the waters was detected, associated with high levels of ammonium, total phosphorus and chlorophyll. In surface the dissolved oxygen had high levels, but in 8 m there was anoxia in the most interior stations. The thermotolerant coliforms reached high concentrations in the stations of the central axis, but in the beahes, only El Níspero was not appropriate for direct contact, in accordance with the current cuban standard. By means of a principal components analysis it was determined that high ammonium and total phosphorus concentrations were associated with lower salinities, indicating that the origin of these nutrients resides in the contribution of the rivers and drainages of the city that pour in the most internal area. A cluster analysis points out the relative similarity among the four stations of the interior, which differ from the station located in the mouth. It is concluded that in the bay remains a high level of eutrophication originated 2 by nutrients and organic matter originated in the terrestrial sources of pollution and that the most affected area is the north end, where the rivers and drainages pour.
| Main Authors: | , , , |
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| Format: | Preprint biblioteca |
| Language: | Spanish / Castilian |
| Published: |
2010
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| Subjects: | Eutrophication, Pollution, Nutrients (mineral), |
| Online Access: | http://hdl.handle.net/1834/3572 |
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