Journals Information
Environment and Ecology Research Vol. 13(4), pp. 549 - 565
DOI: 10.13189/eer.2025.130408
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Evaluation of the Physiological State of Tilapia Sarotherodon melanotheron from the Lead and Cadmium-Polluted Lake Nokou茅 - Porto-Novo Lagoon of in Benin
Gis猫le HOUEDJISSI 1,2, Maxime Machioud SANGARE-OUMAR 1,*, Prudencio AGBOHESSI 2, Mahugnon Alexis Bienvenu HOUNDJI 2, Eric GLODJO 1, Zoub茅rou Aboudou ABOUDOU 2, Jean-Michel AKPO 1, Cond茅-Abalou Roland BAMA脧 1
1 Laboratory of Pharmacology and Experimental Physiology (LPPE), Faculty of Science and Technology, University of Abomey Calavi, Benin
2 Research Laboratory in Aquaculture and Aquatic Ecotoxicology (LaRAEq), University of Parakou, Benin
ABSTRACT
Water pollution remains an important concern for aquatic biodiversity, and threatens fish life. In Lake Nokou茅 - Porto-Novo lagoon complex, one of the most productive in West Africa, fish do undergo the harmful effects of water pollution, which affect fish physiology and therefore their survival. This study aimed to assess the physiological state of Sarotherodon melanotheron, one of the most abundant fish species in this complex. To this end, lead and cadmium concentrations in fish, obtained from the complex during periods of high and low water, were determined using atomic absorption spectrometry. Hematoxylin & Eosin staining was used to examine the histology of their gonads and livers. Hematological and biochemical analysis was conducted on fish blood samples. The analysis revealed that lead (12.65 卤 11.63 mg/Kg) and cadmium (0.14 卤 0.07 mg/Kg) were accumulated in fish. During low-water, fish had decreased hemoglobin, hematocrit, white blood cells and lymphocytes, while blood glucose and increased ALT transaminase activity. Histological analysis of the gonads and liver revealed numerous alterations, particularly during periods of high-water. Collectively, these data show that pollution of the complex promote bioaccumulation of these heavy metals resulting in altered fish physiology and health.
KEYWORDS
Hematology, Histology, Sarotherodon melanotheron, Lake Nokou茅 - Porto-Novo Lagoon
Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Gis猫le HOUEDJISSI , Maxime Machioud SANGARE-OUMAR , Prudencio AGBOHESSI , Mahugnon Alexis Bienvenu HOUNDJI , Eric GLODJO , Zoub茅rou Aboudou ABOUDOU , Jean-Michel AKPO , Cond茅-Abalou Roland BAMA脧 , "Evaluation of the Physiological State of Tilapia Sarotherodon melanotheron from the Lead and Cadmium-Polluted Lake Nokou茅 - Porto-Novo Lagoon of in Benin," Environment and Ecology Research, Vol. 13, No. 4, pp. 549 - 565, 2025. DOI: 10.13189/eer.2025.130408.
(b). APA Format:
Gis猫le HOUEDJISSI , Maxime Machioud SANGARE-OUMAR , Prudencio AGBOHESSI , Mahugnon Alexis Bienvenu HOUNDJI , Eric GLODJO , Zoub茅rou Aboudou ABOUDOU , Jean-Michel AKPO , Cond茅-Abalou Roland BAMA脧 (2025). Evaluation of the Physiological State of Tilapia Sarotherodon melanotheron from the Lead and Cadmium-Polluted Lake Nokou茅 - Porto-Novo Lagoon of in Benin. Environment and Ecology Research, 13(4), 549 - 565. DOI: 10.13189/eer.2025.130408.