Difference between revisions of "BQE"
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==General description== | ==General description== | ||
| − | <p>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:</p> | + | <p>For the implementation of the [http://ec.europa.eu/environment/water/water-framework/index_en.html 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:</p> |
*'''Phytoplankton''' | *'''Phytoplankton''' | ||
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| − | <p>The indicators may be related to the composition, abundance and diversity of species, as well as presence | + | <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> | <p>The evaluation of the status of the water bodies may be complemented with hydromorphological (HYMO)quality elements and/or physicochemical quality elements.</p> | ||
Revision as of 14:55, 4 February 2010
Contents
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.
Case studies referred to each BQE
Phytoplankton
Macrophytes and phytobenthos
Benthic Invertebrates
