In vivo Acute Toxicity Tests of Some Heavy Metals to Tilapia Fish (Oreochromis niloticus)

Taweel, Abdulali; Shuhaimi-Othman, M.; Ahmad, Asmita

doi:10.3923/jbs.2013.365.371

Cited by 7 publications

(11 citation statements)

References 10 publications

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“…In addition, ion regulatory disruption effect of heavy metals toxicity [22]. These results are comparable to those of Taweel et al [23] who recorded that fish mortality increased with increasing concentration and/or exposure time of O. niloticus to heavy metal. They also recorded that O. niloticus was more sensitive to copper than lead and copper is more toxic to fish.…”

Section: Clinical Signs and Post Mortem Findingssupporting

confidence: 83%

Effect of Copper and Lead as Water Pollutants on Ectoparasitic Infested Oreochromis niloticus

El‐Bouhy

Reda

El-Azony

2016

Zagazig Veterinary Journal

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In this study, the effects of 1/10 and 1/20 96 h LC 50 of copper and lead on ectoparasitic infested Oreochromis niloticus (O. niloticus) were evaluated by measuring its impact on the intensity and vitality of Cichlidogyrus and Trichodina species. In addition, copper and lead effects on hematological, biochemical parameters and histopathological findings of infested O. niloticus gills were evaluated. Three hundred naturally infested O. niloticus with Cichlidogyrus and Trichodina species were divided into five equal groups, each with three replicates (20 fish/ replicate). The infested fish of the first group were kept as control. While, infested fish of the second and third groups were exposed to 1/10 (0.43 mg/L) and 1/20 (0.21 mg/L) of 96 h LC 50 of copper sulphate, respectively. Fish of fourth and fifth group were exposed to 1/10 (20.2 mg/L) and 1/20 (10.1 mg/L) of 96 h LC 50 of lead acetate, respectively. The results revealed an inverse relationship between the different concentrations of copper and lead (1/10 and 1/20 96 h LC 50) and the intensity of external parasites in the gills of fish where the increase of copper and lead concentrations resulted in decrease in the intensity and vitality of ectoparasites during the experimental period (30 days). Red blood cell count, platelets, mean corpuscular volume, mean corpuscular hemoglobin, lymphocyte, neutrophil, esinophil, Aspertate Transminase; Alanine Transferase, urea and creatinine showed the lowest significant value in groups 2 and 4 in comparison to group 1, besides, histopathological alterations, such as; congestion of blood vessels and fusion of secondary lamellae and complete absence of secondary lamellae in gills of the experimental groups. It could be concluded that, fish ectoparasites (Cichlidogyrus and Trichodina species) are considered as a biomarker for environmental pollution (copper and lead pollution).

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Section: Clinical Signs and Post Mortem Findingssupporting

confidence: 83%

Effect of Copper and Lead as Water Pollutants on Ectoparasitic Infested Oreochromis niloticus

El‐Bouhy

Reda

El-Azony

2016

Zagazig Veterinary Journal

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“…Lethal concentrations of zinc ranged over more than three orders of magnitude from 166 to >67,000 μg L −1 (Brinkman and Johnston 2012 ). Typically, vertebrates are more resistant to heavy metals than invertebrates, especially planktonic cladocerans (Clearwater et al 2013 ; Taweel et al 2013 ); however, among species native to the Rocky Mountains, trout fish were the most sensitive, while several benthic invertebrates were the most tolerant (Brinkman and Johnston 2012 ). The source of Zn and Pb in urban areas in Poland is mainly low-chimney emission, due to numerous households heated with coal-fired heating stations (Lis and Pasieczna 2005 ).…”

Section: Resultsmentioning

confidence: 99%

Storm water contamination and its effect on the quality of urban surface waters

Barałkiewicz

Chudzińska

Szpakowska

et al. 2014

Environ Monit Assess

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We studied the effect of storm water drained by the sewerage system and discharged into a river and a small reservoir, on the example of five catchments located within the boundaries of the city of Poznań (Poland). These catchments differed both in terms of their surface area and land use (single- and multi-family housing, industrial areas). The aim of the analyses was to explain to what extent pollutants found in storm water runoff from the studied catchments affected the quality of surface waters and whether it threatened the aquatic organisms. Only some of the 14 studied variables and 22 chemical elements were important for the water quality of the river, i.e., pH, TSS, rain intensity, temperature, conductivity, dissolved oxygen, organic matter content, Al, Cu, Pb, Zn, Fe, Cd, Ni, Se, and Tl. The most serious threat to biota in the receiver came from the copper contamination of storm water runoff. Of all samples below the sewerage outflow, 74 % exceeded the mean acute value for Daphnia species. Some of them exceeded safe concentrations for other aquatic organisms. Only the outlet from the industrial area with the highest impervious surface had a substantial influence on the water quality of the river. A reservoir situated in the river course had an important influence on the elimination of storm water pollution, despite the very short residence time of its water.

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“…Toxicity tests are conducted to assess the effects of single or complex mixture of contaminants on the organisms. In freshwater, the existence or absence of fi sh has been extensively used as a biological indicator of the level of pollution [5]. Percocypris pingi (P. pingi), mainly in distributed in the upper reaches of the Yangtze River, was chosen for this study.…”

Section: Introductionmentioning

confidence: 99%

Acute Toxicity of Mercury Chloride (Hgcl2) and Cadmium Chloride (Cdcl2) on the behavior of freshwater fish, Percocypris Pingi

Yuan¹,

Huang²,

Liu³

et al. 2017

Int J Aquac Fish Sci

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The present study was performed to examine acute toxicity of two water-borne metals (Hg and Cd) by static bioassays. Fingerlings Percocypris pingi (P. pingi) were exposed to a range of concentrations of heavy metals and the mortality rate were investigated after 24, 48, 72 and 96h. The median lethal concentration (LC 50) was determined with Probit analysis. The LC 50 values of mercury chloride for the P. pingi at 24, 48, 72 and 96h were 0.441, 0.347, 0.327 and 0.327 mg/L, respectively. But the LC 50 values of cadmium chloride at 24, 48, 72 and 96h were 2.551, 2.341, 1.207 and 0.081mg/L, respectively. The toxicity ranking of the two heavy metals was Hg>Cd. The safe concentration of Hg and Cd were 0.0327 and 0.0081mg/L, respectively.

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In vivo Acute Toxicity Tests of Some Heavy Metals to Tilapia Fish (Oreochromis niloticus)

Cited by 7 publications

References 10 publications

Effect of Copper and Lead as Water Pollutants on Ectoparasitic Infested Oreochromis niloticus

Effect of Copper and Lead as Water Pollutants on Ectoparasitic Infested Oreochromis niloticus

Storm water contamination and its effect on the quality of urban surface waters

Acute Toxicity of Mercury Chloride (Hgcl2) and Cadmium Chloride (Cdcl2) on the behavior of freshwater fish, Percocypris Pingi

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