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Metadata describing the biological and environmental database of the Ruhr catchment (Germany)

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Chapter
The implementation of the Water Framework Directive (WFD) of the European Union requires future routine assessment of the ecological status of rivers using physical, chemical and biological quality components. Fish communities referring to their species compositions, abundances, and age structures have to be considered as biological indicators. However, so far not only suitable standard sampling approaches but also an assessment method fulfilling the requirements of the WFD are lacking for Germany. Thus, the necessity of fundamental research work covering all mentioned aspects is obvious.
Article
In the past, no single standardised method for sampling and sorting benthic macroinvertebrates has been implemented in Germany. Therefore, we tested the suitability of two common sorting protocols, RIVPACS and AQEM/STAR, by taking samples with each protocol at 44 sampling sites. Our results reveal that different methods deliver slightly different assessment results. Moreover these two methods differ in costs. Although the AQEM/STAR protocol takes longer than the RIVPACS protocol, we favoured the AQEM/STAR protocol because of its higher level of standardisation. In order to limit costs to an acceptable level, a modification of the AQEM/STAR protocol (MAS method) is developed. This method is highly standardised, gives stable assessment results and is relatively inexpensive (€ 224.00 for processing of an average sample). A detailed protocol of the newly developed method is given.
Assessing the ecological status of river systems using fish assemblages. Handbuch Angewandte Limnologie
  • U Dußling
  • R Berg
  • H Klinger
  • C Wolter
Dußling, U., Berg, R., Klinger, H. & Wolter, C., 2004. Assessing the ecological status of river systems using fish assemblages. Handbuch Angewandte Limnologie, 20. Erg. Lfg. 12/04: 1-84.
  • J Schaumburg
  • C Schranz
  • P Meilinger
  • D Stelzer
  • G Hofmann
  • J Foerster
  • A Gutowski
  • S Schneider
  • B Köpf
  • U Schmedtje
Schaumburg, J., Schranz, C., Meilinger, P., Stelzer, D., Hofmann, G., Foerster, J., Gutowski, A., Schneider, S., Köpf, B. & Schmedtje, U., 2005. Makrophyten und Phytobenthos in Fließgewässern und Seen?Das deutsche Bewertungsverfahren: Entwicklung, Praxistest und Ausblick. Limnologie aktuell 11: 63-75.