Toxicity Of Industrial Effluent To &lt;i&gt;Oreochromis niloticus&lt;/i&gt; (Linnaeus, 1758) Fingerlings

Ikpi, GU; Ogunyemi, OO; Salami, A.A.; Offem, BO

doi:10.4314/joafss.v4i2.33781

Cited by 2 publications

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“…The acute 96h LC 50 value of the detergent effluent was 0.018mg/L while that of the chronic toxicity test was found to be 0.0038mg/L. These values fell within the concentrations ranges reported in the previous studies of Ikpi et al, (2003) Adewoye et al, (2005) for O. niloticus and C. gariepinus respectively. They however observed that at such concentrations the behavioral activities of the organisms would be disrupted and the fitness of the natural population size of an aquatic environment become relatively impaired.…”

Section: Discussionsupporting

confidence: 82%

Toxicological impact of detergent effluent on juvenile of African Catfish (Clarias gariepinus) (Buchell 1822)

Ogundiran¹,

Fawole²,

Adewoye³

et al. 2010

ABJNA

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ABSRACTSThe toxicity of commercial detergent effluent (containing Linear Alkylbenzene Sulfonates), a household cleaning agent was investigated with emphasis on histopathological effects using Juvenile African mud fish (Clarias gariepinus) with the mean weight 1.7 ± 0.2kg and standard length of 8.3 ± 0.3 cm. After series of range finding test, the fishes were exposed to lethal concentrations 0.00 mg/L, 0.01 mg/L, 0.02 mg/L, 0.03 mg/L, 0.04 mg/L and 0.05 mg/L and as well as sub-lethal concentrations 0.000 mg/L, 0.002 mg/L, 0.003 mg/L, 0.004 mg/L, 0.005 mg/L and 0.006 mg/L of detergent effluent for 56 days in a renewal bioassay procedure. The median lethal concentration (LC 50 ) values for lethal and sublethal tests were 0.0166 mg/L and 0.0038 mg/L respectively. Respiratory disturbance, erratic swimming, loss of equilibrium, lethargies and sudden fish death were observed in the exposed fish and these varied greatly with differences in concentration of the toxicant and this shows that mortality increases with an increase in concentration. The differences observed in the mortalities of C. gariepinus at varying concentrations were significant (p < 0.05), an indication that mortality could be a factor of concentration and time of exposure. The liver of the control fish showed normal parenchyma appearance of hepatocyte with normal staining patterns of the cell. In the treated fishes, there was congestion of central vein, vacoulation of hepatocyte, oedema, cellular infiltration and cellular necrosis. Detergent effluent is highly toxic to Clarias gariepinus juveniles, which are more susceptible to this household cleaning agent's effluent; therefore, an indiscriminate discharge of this effluent to the surrounding should be discouraged

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Section: Discussionsupporting

confidence: 82%

Toxicological impact of detergent effluent on juvenile of African Catfish (Clarias gariepinus) (Buchell 1822)

Ogundiran¹,

Fawole²,

Adewoye³

et al. 2010

ABJNA

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“…Liver samples were then embedded in paraffin and histological sectioning subsequently done at 5 µm using a TBS® CUTTM rotary microtome. Sections were mounted on glass slides and air-dried prior to staining using H & E (30), viewed under a light microscope, this was done at the pathological Department of the University of Ibadan.…”

Section: Hepatological Examinationmentioning

confidence: 99%

Haematological and Hepatic Responses of the African Catfish Clarias gariepinus to Sublethal Exposure of Industrial Effluents from Ologe Lagoon Environs, Lagos, Nigeria

Adeboyejo¹,

Clarke²,

Hammed³

et al. 2018

JFSE

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The present study is on the haematological and hepatic responses of the African catfish fingerlings Clarias gariepinus to sublethal toxicity of industrial effluents (IE) from the environment of Ologe Lagoon, Lagos, Nigeria. The fish were cultured in five concentrations of industrial effluents: 0% (control), 5%, 15%, 25%, and 35%. Trials were carried out in triplicates for twelve (12) weeks. The culture system was a static renewable bioassay and was carried out in the fisheries laboratory of the Lagos State University, Ojo-Lagos. Weekly physico-chemical parameters: Temperature (°C), pH, conductivity (ppm) and dissolved oxygen (DO in mg/L) were measured in each treatment tank. Haematological parameters: packed cell volume (PCV), red blood cells (RBC), white blood cell (WBC), neutrophil and lymphocytes etc., and hepatological alterations were measured after 12 weeks. The physico-chemical parameters showed that the pH ranged from 7.82±0.25~8.07±0.02. DO ranged from 1.92±0.66~4.43±1.24 mg/L. The conductivity values increased with increase in concentration of I.E. While the temperature difference remained insignificant with mean value range between 26.08±2.14~26.38±2.28. The DO showed significant differences at p < 0.05. Though survival was 100% during the sublethal study, haematological results showed that C. gariepinus had PCV ranging from 13.0±1.7~27.7±0.6, RBC ranged from 4.7±0.6~9.1±0.1, and neutrophil ranged from 26.7±4.6~61.0±1.0 amongst others. The highest values of these parameters were obtained in the control and lowest at 35%. While the reverse effects were observed for WBC and lymphocytes, the liver shows normal liver cells in the control (0%), but at higher toxic levels, there were: vacoulation, destruction of the hepatic parenchyma, tissue becoming eosinophilic (i.e. tending towards Carcinogenicity) and severe disruption of the hepatic cord architecture. This study therefore shows that disposal of effluents into the aquatic environment affects the health of fishes by impairing normal hepatic functions and hindering vital physiological processes if exposure continues for a long period of time (sublethal effect).

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Toxicity Of Industrial Effluent To <i>Oreochromis niloticus</i> (Linnaeus, 1758) Fingerlings

Cited by 2 publications

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Toxicological impact of detergent effluent on juvenile of African Catfish (Clarias gariepinus) (Buchell 1822)

Toxicological impact of detergent effluent on juvenile of African Catfish (Clarias gariepinus) (Buchell 1822)

Haematological and Hepatic Responses of the African Catfish Clarias gariepinus to Sublethal Exposure of Industrial Effluents from Ologe Lagoon Environs, Lagos, Nigeria

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