Ecological status

This high agriculture activity compromises the chemical and ecological status of the Ebro delta. Pesticides used in the area migrate into the delta building up, together with the pollution produced by some industries, a contamination that can be dangerous to its both fauna and flora, and this contamination increases when water from the rice fields is drained into the delta [17]. 

The objective of the WFD is to implement an optimal ecological integrity in European water bodies. Overall, this is a very ambitious objective that needs to be fulfilled by 2015, and in the meantime the development of methodologies have evidenced both the potentials and limitations of the so-called ecological status approximation. 

The ecological status is a utilitarian concept that is largely based on the combination of the hydromorphological, chemical and biological estimates. This is a rather novel approach combining multiple indicators, well beyond of precedent... 

EQS-QN] criteria for aquatic life and human health protection to characterise reference conditions and to prove ecological status class boundaries in surface water Exposure Exposure Exposure Risk analysis Risk estimate... 

Daan, N. (1975). Consumption and production in North Sea cod. An assessment of the ecological status of the stock. Netherlands Journal of Sea Research 9,24-55. 

The recent approval and implementation of the European Water Framework Directive further emphasizes the role of biota as a tool for assessing aquatic environmental quality, in that it strives not only for the improvement of the chemical quality status of water bodies but also for the rehabilitation of their ecological status. In the light of these recommendations, it becomes essential to use biota to assess not only the chemical status of water bodies through contaminant load analysis, but also their ecological status, in what must be an integrated, multidisciplinary approach. 

Toxicity Class PE Value Ecological Status (with Reference to WFD) Color Coding... 

When studying the ecological status of watersheds and landscapes, monitoring techniques and indicators are widely used tools. The diagnostic indicators comprise indicator species and community metric approaches. To improve the interpretation of monitoring programs and ecosystem health indicators to assess risks of... 

Unique Whole Mixtures Many techniques are available to directly quantify total toxic impacts of mixtures. The risk assessment question in this case is related to the regulatory evaluation of emissions, like in the case of effluents, or it is related to the concept of good ecological status (GES), introduced in the EU Water Framework Directive (EU Directive 2000/60/EC). 

GES Good ecological status. Concept used in the EU Water Framework Directive to refer to water bodies that have biological and chemical characteristics expected under sustainable conditions. 

Existing and New Methods for Chemical and Ecological Status Monitoring under the WFD... 

Ecotoxicity tests react to the presence of a wide range of toxic substances, therefore suitable for the overall evaluation of the ecological status of waters. However, not sensitive enough in comparison with laboratory techniques, and just as the above mentioned biosensor, not applicable for the identification of the toxic compounds and... 

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