| Autor: |
Haase, Peter, Lohse, Susanne, Pauls, Steffen, Schindehütte, Karin, Sundermann, Andrea, Rolauffs, Peter, Hering, Daniel |
| Předmět: |
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| Zdroj: |
Limnologica; Dec2004, Vol. 34 Issue 4, p349-365, 17p |
| Abstrakt: |
Abstract: 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. [Copyright &y& Elsevier] |
| Databáze: |
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