Study on the Reuse of Treated Wastewater on the Behavior of Aquatic Biodiversity: Case of Anodonta cygnea and Cyprinus carpio from Western Algeria

Et Al., Amar

doi:10.21608/ejabf.2025.417617.6478

Study on the Reuse of Treated Wastewater on the Behavior of Aquatic Biodiversity: Case of Anodonta cygnea and Cyprinus carpio from Western Algeria

Document Type : Original Article

Author

Amar et al.

10.21608/ejabf.2025.417617.6478

Abstract

Water scarcity in semi-arid regions necessitates innovative strategies for sustainable resource management. This study evaluates the biofiltration capacity of the freshwater mussel Anodontacygnea and the physiological tolerance of the common carp fry Cyprinus carpio when exposed to treated wastewater. Experimental trials using effluents from the Sidi Bel Abbès activated sludge treatment plant revealed that higher mussel densities markedly enhanced water quality by lowering turbidity, suspended solids,
biochemical oxygen demand (BOD₅), chemical oxygen demand (COD), and nutrient loads (nitrogen and phosphorus), while concurrently improving dissolved oxygen. In parallel, C. carpio fry exposed to increasing effluent concentrations (up to 100%) exhibited high survival and resilience, even under stressful conditions characterized by low oxygen availability and elevated ammonium and nitrite levels. These findings underscore the dual potential of mussel biofiltration and resilient aquaculture species in promoting the sustainable reuse of treated wastewater offering a viable ecological pathway for aquaculture development in water-limited environments.

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