Towards an integrated approach for monitoring the effects of chemical contaminants in the Spanish coastal Mediterranean waters

anglais. The Spanish Mediterranean Biomonitoring Programs of chemical contamination (BMCW and BMIS programs) are conducted by the Instituto Español de Oceanografía (IEO) under the responsibility of the Ministry of Environment (MEDPOLIEO Project in 2006 and 2-ESMARME Project in 2010-2012).

anglais. In the past twelve years, chemical monitoring surveys in Spanish Mediterranean coastal waters have developed from the use of native mussels to an integrated sampling of native and caged mussels, fish (red mullet) and sediment. In addition, the application of biological effect measurements (using biomarkers and bioassays) in the same matrices is being gradually arising. So far, biological measurements have comprised a suite of biomarkers in fish (EROD, Ala-D and AChE activities, Metallothionein content, DNA integrity and micronuclei abnormalities) and in mussels (Stress on Stress, lysosomal membrane stability, Metallothionein content, Micronuclei frequency, AChE and antioxidant enzymes) as well as the sea urchin embryotoxicity test with Paracentrotus lividus in sediment elutriates. Most of the driving forces behind these changes came from recommendations and Standard Operation Practices provided by expert organizations as MED POL, ICES, and OSPAR, and these changes have considerably increased the costs of monitoring. However, higher costs of intensive monitoring activities will allow contributing to a more realistic assessment of the quality and health status of the marine ecosystem. For this purpose quality assurance and the development of assessment criteria for the selected methods is a prerequisite. These requirements are necessary to meet national and international obligations (EU-MSFD, EU-WFD). Here, we present and discuss the integrated chemical-biological effect approach that is currently being proposed for implementation in the Spanish Mediterranean monitoring programme 2010-2012. The selected biological measurements, the assessment criteria obtained so far and quality assurance processes are discussed in terms of feasibility.

Oral communication