DIN EN 16150:2012-07

This European Standard gives guidance on procedures for the pro rata Multi-Habitat-Sampling (MHS) of benthic macro invertebrates in wadeable rivers and streams. The term 'pro-rata' reflects the intention to sample adequate proportions of riverine habitats with reference to their percentage occurrence. The pro-rata MHS technique does not replace other techniques, but is rather, alongside other applications, a fundamental requisite of some multi-metric assessment approaches used to evaluate the ecological status of running waters. The method described in this document is one of the possible techniques among the existing pro-rata MHS techniques. This European Standard also describes in a detailed manner how to sample different habitats that might be suitable for sampling approaches other than Multi-Habitat-Sampling.