A multimetric index for assessment of aquatic ecosystem health based on macroinvertebrates for the Zio river basin in Togo
| Autor: | Wendengoudi Guenda, Kossitse Venyo Akpataku, Gbandi Djaneye-Boundjou, Gabriel Lazar, Limam Moctar Bawa, Adama Oueda, Idrissa Kaboré, Iuliana Lazar, Lallébila Tampo |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Hydrology Pollution geography Index (economics) geography.geographical_feature_category 010604 marine biology & hydrobiology media_common.quotation_subject Aquatic ecosystem Drainage basin Aquatic Science 010603 evolutionary biology 01 natural sciences Environmental science Invertebrate media_common |
| Zdroj: | Limnologica. 83:125783 |
| ISSN: | 0075-9511 |
| DOI: | 10.1016/j.limno.2020.125783 |
| Popis: | The use of multimetric indices as tools for assessing aquatic ecosystem health in most of the developing countries such as Togo is still lacking. To fill this gap, we developed a macroinvertebrates-based multimetric index for the Zio river basin of Togo. Forty-two sites were assessed for the development and the validation of the Multimetric Index of Zio River Basin (MMIZB). Thirty-nine candidate metrics belonging to four categories (composition metrics, functional feeding metrics, diversity metrics and tolerance measure metrics) were evaluated. After comprehensive multiple selection procedure, six core metrics were retained to provide the final MMIZB. The results showed that the MMIZB responded to a set of organic pollution (chemical oxygen demand, ammonium, total suspended solid) and hydromorphological alterations, which corresponded to a set of gradients of human pressures affecting the ecological integrity of Zio river basin water bodies (r = 0.78, p |
| Databáze: | OpenAIRE |
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