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A multimetric macroinvertebrate index for assessing the water quality of the Cau river basin in Vietnam
Nguyen, H.H.; Everaert, G.; Gabriels, W.; Hoang, T.H.; Goethals, P.L.M. (2014). A multimetric macroinvertebrate index for assessing the water quality of the Cau river basin in Vietnam. Limnologica 45: 16-23. https://dx.doi.org/10.1016/j.limno.2013.10.001
In: Limnologica. ELSEVIER GMBH, URBAN & FISCHER VERLAG: München. ISSN 0075-9511; e-ISSN 1873-5851
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| Trefwoord |
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| Author keywords |
Multimetric index; Macroinvertebrates; Ecological quality assessment; BMWP-Viet |
| Auteurs | | Top |
- Nguyen, H.H.
- Everaert, G.
- Gabriels, W.
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- Hoang, T.H.
- Goethals, P.L.M.
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| Abstract |
In this study we developed and applied a multimetric index to assess the biological water quality of rivers in Vietnam as a complementary tool to the traditional physical–chemical analysis. Macroinvertebrate samples were collected at 15 monitoring sites in the Cau river basin, Northern of Vietnam. Eighteen candidate metrics were tested for their range, stability, sensitivity and responsiveness to anthropogenic impacts. The MMI was calculated as the arithmetic mean of five metrics that were retained being the Biological Monitoring Working Party (BMWP) – Viet, total number of taxa, Margalef index, number of ephemeroptera, plecoptera and trichoptera (EPT) and percent of insects. The MMI is split up in five water quality classes, ranging from class one (high biological status) to class five (bad biological status). The study demonstrated that the multimetric approach is suitable for application in the Vietnamese national monitoring and assessment program. |
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