Wastewater bioremediation by mangrove ecosystems impacts crab ecophysiology: In-situ caging experiment

Autor: Yann Mercky, Georgina A. Rivera-Ingraham, Jehan-Hervé Lignot, Dimitri Theuerkauff, Elliott Sucré, Sophia Lambert, Mathilde Lejeune
Přispěvatelé: MARine Biodiversity Exploitation and Conservation (UMR MARBEC), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Université de Montpellier (UM), Aix-Marseille Université - Faculté d'odontologie (AMU ODONTO), Aix Marseille Université (AMU), Centre Universitaire de Formation et de Recherche de Mayotte (CUFR), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut de Recherche pour le Développement (IRD), Institut de Systématique, Evolution, Biodiversité (ISYEB ), Muséum national d'Histoire naturelle (MNHN)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA)
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Gills
Gill
Salinity
Health
Toxicology and Mutagenesis
Ecophysiology
Wetland
010501 environmental sciences
Wastewater
Mangrove crab
01 natural sciences
Osmoregulation
Hemolymph
0303 health sciences
induced oxidative stress
geography.geographical_feature_category
Ecology
wetland
Biodegradation
Environmental
France
Sodium-Potassium-Exchanging ATPase
Mangrove
Bioturbation
Oxidation-Reduction
Environmental Monitoring
animal structures
Brachyura
[SDE.MCG]Environmental Sciences/Global Changes
Aquatic Science
Biology
assemblages
03 medical and health sciences
Bioremediation
Indian Ocean Islands
discharge
Animals
Ecosystem
14. Life underwater
blue-crab
antioxidant enzyme-activities
030304 developmental biology
0105 earth and related environmental sciences
geography
fungi
Burrow
superoxide-dismutase
13. Climate action
Oxidative stress
Wetlands
ecological role
contaminants
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
Water Pollutants
Chemical
Zdroj: Aquatic Toxicology
Aquatic Toxicology, 2020, 218, pp.105358. ⟨10.1016/j.aquatox.2019.105358⟩
Aquatic Toxicology, Elsevier, 2020, 218, pp.105358. ⟨10.1016/j.aquatox.2019.105358⟩
Aquatic Toxicology (0166-445X) (Elsevier BV), 2020-01, Vol. 218, P. 105358 (10p.)
ISSN: 0166-445X
Popis: Place: Amsterdam Publisher: Elsevier WOS:000509631400010; International audience; Mangroves are tidal wetlands that are often under strong anthropogenic pressures, despite the numerous ecosystem services they provide. Pollution from urban runoffs is one such threats, yet some mangroves are used as a bioremediation tool for wastewater (WW) treatment. This practice can impact mangrove crabs, which are key engineer species of the ecosystem. Using an experimental area with controlled WW releases, this study aimed to determine from an ecological and ecotoxicological perspective, the effects of WW on the red mangrove crab Neosarmatium africanum. Burrow density and salinity levels (used as a proxy of WW dispersion) were recorded, and a 3-week caging experiment was performed. Hemolymph osmolality, gill Na+/K+-ATPase (NKA) activity and gill redox balance were assessed in anterior and posterior gills of N. africanum. Burrow density decreased according to salinity decreases around the discharged area. Crabs from the impacted area had a lower osmoregulatory capacity despite gill NKA activity remaining undisturbed. The decrease of the superoxide dismutase activity indicates changes in redox metabolism. However, both catalase activity and oxidative damage remained unchanged in both areas but were higher in posterior gills. These results indicate that WW release may induce osmoregulatory and redox imbalances, potentially explaining the decrease in crab density. Based on these results we conclude that WW release should be carefully monitored as crabs are key players involved in the bioremediation process.
Databáze: OpenAIRE
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