Distribución espacial y tendencias temporales de los niveles de metales traza en el litoral de Andalucía utilizando mejillón Mytilus galloprovincialis Lamarck, 1819 como organismo indicador: 1991-2003
This paper presents results on spatial distribution and temporal trends for heavy metals (Hg, Cd, Pb, Cu and Zn) in 3-4 cm specimens of the wild mussel Mytilus galloprovincialis Lamarck, 1819 from the Andalusian coast, collected from 1991-2003. Temporal trends were determined applying the Mann-Kenda...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2003 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/321077 |
| Acceso en línea: | http://hdl.handle.net/10261/321077 |
| Access Level: | acceso abierto |
| Palabra clave: | Medio Marino Tendencias temporales contaminación marina Metales pesados Mytilus galloprovincialis Bioindicadores Mann-Kendall calidad de las aguas costeras |
| Sumario: | This paper presents results on spatial distribution and temporal trends for heavy metals (Hg, Cd, Pb, Cu and Zn) in 3-4 cm specimens of the wild mussel Mytilus galloprovincialis Lamarck, 1819 from the Andalusian coast, collected from 1991-2003. Temporal trends were determined applying the Mann-Kendall test (one-sided) to the median concentration values obtained for each year and locality. The most striking results were the high percentage of non-significant trends (84.61 %), and the predominance of significant downward trends (15.38 %), as opposed to upward trends (0 %). The concentrations of Hg, Cu and Pb tended to diminish from 1991, being mercury the metal that best reflects this tendency. The metal levels are within the range obtained in other studies carried out elsewhere in the Mediterranean and Atlantic coasts of the Iberian Peninsula and France. |
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