Cytogenotoxicity and histopathological assessment of Lekki Lagoon and Ogun River in<i>Synodontis clarias</i>(Linnaeus, 1758)

Alimba, Chibuisi G.; Saliu, Joseph Kayode; Ubani-Rex, Olayinka Adunni

doi:10.1080/02772248.2015.1041956

Cited by 22 publications

(28 citation statements)

References 42 publications

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“…Subsequently, gills became prone and exposed to deleterious effects from environmental pollutants through oxidative stress ( Farombi et al., 2007 ). The reported lesions reported on the gills of C. gariepinus exposed to abattoir effluent were similar to what were observed in Oreochromis niloticus which were exposed to petroleum refinery effluent ( Onwumere and Oladimeji, 1990 ) and in Synodontis clarias sampled from Lekki Lagoon and Ogun River in Nigeria which was polluted by organic an inorganic pollutants ( Alimba et al., 2015 ).…”

Section: Discussionsupporting

confidence: 64%

Toxicity effects of Kano central abattoir effluent on Clarias gariepinus juveniles

Adamu

Ahmad

Abdullahi

2020

Heliyon

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The contamination of water from rivers or land by effluent of abattoir could cause a pronounced health and environmental hazard. The present study was aimed at determining the acute effects abattoir effluents on Clarias gariepinus juveniles. It involved the determination of physicochemical parameters of the water and the hematological parameters of Clarias gariepinus juveniles. In addition, histopathological features of gills, kidney and liver were assessed. From the study, it was observed that abattoir effluent does not cause a significant change in temperature of the water but reduction in pH and DO values across the groups. Thus, it has induced a remarkable effects on the hematological parameters by causing a significant elevation in MCV, PLT and MCH and reduction in WBC count, RBC count, HGB, LYM and MPV (p < 0.05) than the control. These have led to pronounced changes in the pathologies of gills and liver which include degenerative changes in the oedema and secondary lamellae, cytoplasmic vacuolation of the hepatic tissue respectively. However, the renal tissues were unaffected. It is therefore be concluded that, abbatoir effluent posses some toxicological properties which have been observed in blood, gills and liver tissues of Clarias gariepinus juveniles. Government and other stakeholders should monitor and regulate discharge of the effluent into nearby water bodies.

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Section: Discussionsupporting

confidence: 64%

Toxicity effects of Kano central abattoir effluent on Clarias gariepinus juveniles

Adamu

Ahmad

Abdullahi

2020

Heliyon

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“…These parameters along with heavy metals and unanalyzed organic compounds contributed to the induction of MN and NAs in peripheral erythrocytes and gill erythrocytes of Synodontis clarias, in the river [36]. This suggests threats to the functioning of the aquatic ecosystems and the survival of most aquatic biota in abattoir wastewater polluted water bodies.…”

Section: Discussionmentioning

confidence: 99%

Cytogenotoxicity of Abattoir Effluent in Clarias gariepinus (Burchell, 1822) Using Micronucleus Test

Alimba

Ajayi

Hassan

et al. 2015

Chinese Journal of Biology

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The cytogenotoxic potential of abattoir effluent from Bodija, Nigeria, was investigated using micronucleus test in Clarias gariepinus. Fish was exposed to five different concentrations: 0.2, 0.4, 0.8, 1.6, and 3.1% of the effluent for 7, 14, and 28 days. Tap water and 0.02 mL/L of benzene were used as negative and positive controls, respectively. Physicochemical parameters and heavy metals were analyzed in the effluent in accordance with standard methods. After exposure, blood was collected from the treated and control fish and slides were prepared for micronuclei (MN) and nuclear abnormality evaluation in the peripheral erythrocytes. The effluent induced significant ( < 0.05) increase in the frequency of MN in a time dependent manner. Similarly, the frequency of total nuclear abnormalities (blebbing, notch, bud, binucleation, and vacuolation) was higher in the exposed fish than the negative control. Electrical conductivity, nitrate, biochemical oxygen demand, chemical oxygen demand, arsenic, and copper analyzed in the effluent may have provoked the observed cytogenetic damage. The findings herein suggest the presence of clastogens and cytotoxins in Bodija abattoir wastewater which are capable of increasing genomic instability in aquatic biota.

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“…Urban effluents consist of complex mixtures containing many toxic compounds, such as organic substances, pharmaceuticals and personal care products, metals, hydrocarbons, detergents, pesticides, drugs, and other toxic contaminants (Seriani et al 2010;Sibanda, Selvarajan, and Tekere 2015;Pereira et al 2016). However, urban effluents are frequently disposed into the aquatic ecosystems without prior treatment, a process that has biological effects and threatens aquatic organisms and human health alike (Alimba, Saliu, and Ubani-Rex 2015).…”

Section: Introductionmentioning

confidence: 99%

Differential blood counting in fish as a non-destructive biomarker of water contamination exposure

Corrêa

Abessa

Santos

et al. 2016

Toxicological & Environmental Chemistry

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Differential white blood cell counting was performed on blood from the fish species Oreochromis niloticus and was used as an in situ indicator of the species' exposure to contamination. Ten young fish were collected in an area influenced by the discharge of effluents and from a fish farm (control group). The fish were anesthetized and caudal puncture was used to collect the blood. Differential white blood cell counting was performed, as well as the counting of total leukocytes and thrombocytes (in 2000 cells). Physicochemical parameters of the water from both sites were analyzed. The water from the polluted area was found to have high conductivity and low levels of dissolved oxygen, factors that indicate poor environmental quality. Fish collected from the polluted site presented higher percentages of eosinophils and monocytes and fewer thrombocytes because of exposure to pollution and hypoxic conditions. The differential white blood cell count represents a suitable biomarker of environmental health and provides a tool for biomonitoring water quality.

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Cytogenotoxicity and histopathological assessment of Lekki Lagoon and Ogun River inSynodontis clarias(Linnaeus, 1758)

Cited by 22 publications

References 42 publications

Toxicity effects of Kano central abattoir effluent on Clarias gariepinus juveniles

Toxicity effects of Kano central abattoir effluent on Clarias gariepinus juveniles

Cytogenotoxicity of Abattoir Effluent in Clarias gariepinus (Burchell, 1822) Using Micronucleus Test

Differential blood counting in fish as a non-destructive biomarker of water contamination exposure

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