Difference between revisions of "BQE"

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<p>The indicators may be related to the composition, abundance and diversity of species, as well as the presence or absence of some disturbance-sensitive species. </p>   
 
<p>The indicators may be related to the composition, abundance and diversity of species, as well as the presence or absence of some disturbance-sensitive species. </p>   
  
<p>The evaluation of the status of the water bodies may be complemented with hydromorphological (HYMO)quality elements and/or physicochemical quality elements.</p>
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<p>The evaluation of the status of the water bodies may be complemented with hydromorphological (HYMO)quality elements and/or physicochemical quality elements.</p>
 
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<p>Click in the BQE name to see the list of corresponding case studies.</p>
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Revision as of 18:56, 18 February 2010

Biological Quality Elements (BQE)

General description

For the implementation of the Water Framework Directive, the assessment of ecological status of water bodies is based on biological indicators from several groups of organisms known as biological quality elements (BQE). For inland surface waters the BQE's are:

Phytoplankton

Macrophytes and phytobenthos

Benthic Invertebrates

Fish


The indicators may be related to the composition, abundance and diversity of species, as well as the presence or absence of some disturbance-sensitive species.

The evaluation of the status of the water bodies may be complemented with hydromorphological (HYMO)quality elements and/or physicochemical quality elements.