This project investigated relationships between flow regulation, water chemistry and aquatic ecology at a range of river sites in Germany and Norway. The work was undertaken by the Norwegian Institute for Water Research (NIVA) and was funded by the Research Council of Norway (221398/E40).

The analysis took place in three main stages. Technical details are provided at the following links:

1. Hydrological regimes and dimensionality reduction

2. Tests for differences between regulated and unregulated sites

3. Exploring regression relationships

Further notebooks describing the pre-processing and initial exploration of the datasets are available here.