“Whoa! It's like Spotify but for academic articles.”

Instant Access to Thousands of Journals for just $40/month

Get 2 Weeks Free

A Top-down Approach for the Development of a Stream Typology Based on Abiotic Variables



The management of aquatic ecosystems requires stream-type specific assessment systems, which enable the partition of natural spatial variability and consequently an optimisation of monitoring and assessment programs. Two different approaches are generally used to construct such typologies. In a top-down approach, environmental variables are chosen on previous knowledge of the general topography of the landscape. In a bottom-up approach, analyses of aquatic communities are used for grouping the streams. In the present study, a typology for Luxembourg’s streams is defined with the top-down approach i.e., with abiotic criteria and thus criteria different from those necessary for the assessment of biological conditions (i.e., biotic assemblages). This typological determination is based upon a combination of classification and ordination procedures. A particular emphasis was put on variable characterisation. The results show that six different water stream types were identified using our databases. Typological descriptors are stream dimension, elevation as well as geology. Organic charge, slope and land use rather characterise sites within groups. So, types are defined with criteria independent from any anthropogenic influence or pressure. Such a typology is expected to be relevant for analysing aquatic biota in order to build up a model for the biomonitoring of streams.



HydrobiologiaSpringer Journals

Published: Nov 1, 2005

DOI: 10.1007/s10750-005-4461-2

Free Preview of First Page

Loading next page...

You're reading a free preview. Subscribe to read the entire article.

And millions more from thousands of peer-reviewed journals, for just $40/month

Get 2 Weeks Free

To be the best researcher, you need access to the best research

  • With DeepDyve, you can stop worrying about how much articles cost, or if it's too much hassle to order — it's all at your fingertips. Your research is important and deserves the top content.
  • Read from thousands of the leading scholarly journals from Springer, Elsevier, Nature, IEEE, Wiley-Blackwell and more.
  • All the latest content is available, no embargo periods.

Stop missing out on the latest updates in your field

  • We’ll send you automatic email updates on the keywords and journals you tell us are most important to you.
  • There is a lot of content out there, so we help you sift through it and stay organized.