Limited impact of several years of pretreated wastewater discharge on fauna and vegetation in a mangrove ecosystem
| Autor: | François Fromard, K. Abdallah, Luc Lambs, Joséphine Leflaive, Jean-Luc Rols, C. Capdeville, C. Lin, Frédéric Azémar, Evelyne Buffan-Dubau |
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| Přispěvatelé: | Laboratoire Ecologie Fonctionnelle et Environnement (ECOLAB), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Biotechnologie et Chimie Marines (LBCM), Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Aquatic Organisms Time Factors Fauna Meiobenthos Wastewater 010501 environmental sciences Aquatic Science Oceanography 01 natural sciences Trees Animals Ecosystem Mangrove ecosystem Indian Ocean ComputingMilieux_MISCELLANEOUS 0105 earth and related environmental sciences Islands [SDE.IE]Environmental Sciences/Environmental Engineering Ecology 010604 marine biology & hydrobiology Vegetation 15. Life on land Pollution Productivity (ecology) Wetlands [SDE]Environmental Sciences Environmental science Seasons Mangrove Environmental Monitoring |
| Zdroj: | Marine Pollution Bulletin Marine Pollution Bulletin, Elsevier, 2018, 129 (1), pp.379-391. ⟨10.1016/j.marpolbul.2018.02.035⟩ |
| ISSN: | 0025-326X |
| DOI: | 10.1016/j.marpolbul.2018.02.035 |
| Popis: | It was hypothesized that mangroves, tropical wetlands, could be used for the finishing treatment of domestic wastewaters. Our aim was to determine if a nutrient-stressed mangrove could tolerate long-term discharges of pretreated wastewater (PW). Since 2008, in an in situ experimental system set up in Mayotte Island (Indian Ocean), domestic PW are discharged into two impacted areas (675 m2) dominated by different species of mangrove trees. Anthropogenic inputs during > 4.5 years led to an increase in vegetation growth associated with an increase in leaf pigment content, leaf surface and tree productivity. A marked increase in tree mortality was observed. There was no effect on crabs and meiofauna densities, but significant modifications of community structures. These effects may be directly linked to PW inputs, or indirectly to the modifications of the environment associated with higher tree growth. However, our results indicate that there was no major dysfunction the ecosystem. |
| Databáze: | OpenAIRE |
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