Neue Konzepte zur Bewertung von Tieflandbächen und -flüssen nach Vorgaben der EU Wasser-Rahmenrichtlinie

作者: Christian K. Feld , Daniel Hering , Steffen Pauls , Mario Sommerhäuser

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关键词: Indicator speciesWater Framework DirectiveEnvironmental resource managementSampling (statistics)PollutionBiotaGeographyEnvironmental protectionQuality (business)Benthic zoneSTREAMS

摘要: Since ratification of the EU Water Framework Directive (EU-WFD), river assessment in Europe has taken a new turn, with biological quality indicators becoming main focus and primary tool for describing ecological quality. Implementing EU-WFD requires monitoring methods, which meet both legal demands those water management application. Within project AQEM (The development testing an integrated system streams rivers throughout using benthic macroinvertebrates) method meeting these based on multi-habitat sampling modular was developed. It considers organic structural degradation as two impact factors currently affecting stream biota. We describe this lowland types northern Germany. The module assessing morphological aquatic biota is described further detail data from about 100 samples. A multimetric index evaluating macroinvertebrates introduced. component Faunaindex indicator species. suggested provides correlating macroinvertebrate biocoenoses discernment five classes quality, regardless pollution. Possibilities advantages implementing are discussed.

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