Bioaccumulation of Some Heavy Metals in Some Organs of Three Selected Fish of Commercial Importance from Niger River, Onitsha Shelf, Anambra State, Nigeria

Ibemenuga, Keziah Nwamaka; Ezike, Faith A; Nwosu, Moses C; Anyaegbunam, Lucy C; Okoye, Ebelechukwu I; Eyo, Joseph Effiong

doi:10.36648/1307-234x.13.3.164

Cited by 3 publications

(5 citation statements)

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“…Iron concentrations in fish muscle from farm1, well, and farm4 were similar and lower than permissible limitsNwude et al (2020). Zinc concentrations in fish muscle from farm3 and farm4 were similar and lower than permissible limitsIbemenuga et al (2019),Nofal et al (2019), Tibebe et al. (2019 andNwude et al (2020).…”

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confidence: 67%

“…,Hamada et al (2018),Ibrahim et al (2018),Morshdy (2019) andAbdel- Kader et al (2020)). Cadmium concentrations in fish muscle from different water sources did not differ significantly and were lower than permissible limits Tibebe et al (2019),Ibemenuga et al (2019), andNwude et al (2020). However, some studies found higher concentrationsDural et al (2007),Abumourad et al (2013),Hamada et al (2018),Ibrahim et al (2018) andMorshdy (2019).…”

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confidence: 78%

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Effect of the underground water on health state and growth rate of Nile Tilapia fish (Oreochromis niloticus) in the New Valley Governorate.

Sotohy

Hassan

Abd-Elmaguid

et al. 2023

New Valley Veterinary Journal

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Twenty water samples were collected from El-Dakhlah City in the New valley governorate, five from fishpond. Metal analyses were carried out in Animal Health Research Institute, Dokki, Giza, Egypt. A total of 200 unsexed 8 months Tilapia fish were used in this study. Fifty fish were collected randomly from each pond and then weighed. The results of this study showed that lead, cadmium, and iron were higher than permissible limits of WHO, on the other hand Iodine, copper and zinc were lower than permissible limits of WHO. Manganese was higher than permissible limits mostly in all examined ponds . The concentration of heavy metals and trace elements in fish tissue showed that Lead, cadmium, iron, zinc, copper, and iodine were lower than permissible limits while Manganese was higher than permissible limits. The average body weight gain of Tilapia fish was high in the filtered water ponds than other ponds.

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confidence: 67%

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confidence: 78%

Effect of the underground water on health state and growth rate of Nile Tilapia fish (Oreochromis niloticus) in the New Valley Governorate.

Sotohy

Hassan

Abd-Elmaguid

et al. 2023

New Valley Veterinary Journal

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“…Concentrations of metals (Cd, Zn, Pb, and Hg) were analyzed in the gills, muscle and intestine from three fish species, Tilapia zillii , Malapterurus electricus and Clarias gariepinus from the River Niger in Onitsha, Anambra State [ 46 ]. The concentrations detected were far below the maximum levels set by the Codex Alimentarus [ 86 ].…”

Section: Resultsmentioning

confidence: 99%

“…On the other hand, Kamaruzzaman et al (2010) [94] reported that the concentrations of Zn, Cu, and Pb follow the order stomach > muscle > gills in S. leptolepis, E. affinis, P. niger, L. malabaricus, E. sexfasciatus, R. kanagurta, N. japonicus, and M. cordylafrom from the Pahang coastal water in Malaysia. The concentrations of metals in several fish samples were found to be low [46,[95][96][97][98]. Copat et al (2013) [99] reported similarly low levels of Cd and Pb in shellfish samples from the eastern Mediterranean Sea.…”

Section: Metalsmentioning

confidence: 99%

A Review of Chemical Contaminants in Marine and Fresh Water Fish in Nigeria

Uzomah

Lundebye

Kjellevold

et al. 2021

Foods

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Pollutants in aquatic food are a major global concern for food safety and are a challenge to both national and international regulatory bodies. In the present work, we have reviewed available data on the concentrations of polycyclic aromatic hydrocarbons (PAH), persistent organic pollutants, metals, and microplastics in freshwater and marine fish in Nigeria with reference to international maximum levels for contaminants in food and the potential risk to human health. While most of the contaminant levels reported for fish do not imply any health issues, iron and lead may represent potentially toxic levels in fish from specific areas. Studies on PAHs in marine fish are scarce in Nigeria, and the main focus is on the environmental pollution caused by PAHs rather than on their presence in food. The findings suggest that the consumption of smoked Ethmalosa fimbriata poses a higher potential carcinogenic risk than the other fish species that were investigated. Most of the other studies on PAHs in smoked fish are focused on the smoking method, and little information is available on the initial level of PAHs prior to the smoking process. Metal contamination in fish appeared to be affected by mineral deposits in the environment and industrial effluents. In general, heavy metal levels in fish are below the maximum levels, while there is limited data available on POPs of relevance to food safety in fish from Nigeria, particularly in terms of dioxins, brominated flame retardants, and fluorinated compounds. Furthermore, there is currently limited information on the levels of microplastics in fish from Nigerian waters. This work revealed the need for a more systematic sampling strategy for fish in order to identify the most vulnerable species, the hot spots of contaminants, and applicable food safety control measures for fish produced and consumed in Nigeria.

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“…Aquatic organisms concentrate metal from water and food either by absorption or ingestion. The levels of metal accumulated vary from organ to organ in fish species (Ibemenuga et al, 2019).…”

Section: Resultsmentioning

confidence: 99%

Identification of Causes and The Existence of Mercury and Chromium in Sediment and Sea Water in Kendari Bay

Damayanty¹,

Kamal²,

Muhammad³

2020

Kemas

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Kendari Bay is currently experiencing considerable physical pressure and pollution due to heavy metals. This study aims to determine the content of heavy metals mercury and chromium in sediment and seawater in Kendari Bay. This study uses an observational design with a descriptive approach. The study was conducted in April 2019 in five Port areas with three sampling points in each region. Samples taken are sediment and seawater. Samples taken were analyzed by the Atomic Absorption Spectrophotometry (AAS) method. The results show that all sampling points at five Ports have been contaminated with mercury and chromium in sediment and seawater. The levels of mercury and chromium have exceeded the quality standards stipulated by Minister of Environment Decree No. 51 of 2004. The highest levels of mercury and chromium in seawater and sediment are highest in the Dermaga Tempat Pendaratan Ikan (TPI). This is due to the dense traffic activity of fishing vessels, residential waste, Hospital waste, hospitality waste, tourist waste, paints on ships, oil spills, rust from shipwrecks, and heavy equipment activities from the construction of the Bahteramas Bridge or the Kendari Bay Bridge. Technology needs to control heavy metal contamination as well as policies and law enforcement regarding activities at sea that have the potential to pollute waters.

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Bioaccumulation of Some Heavy Metals in Some Organs of Three Selected Fish of Commercial Importance from Niger River, Onitsha Shelf, Anambra State, Nigeria

Cited by 3 publications

References 0 publications

Effect of the underground water on health state and growth rate of Nile Tilapia fish (Oreochromis niloticus) in the New Valley Governorate.

Effect of the underground water on health state and growth rate of Nile Tilapia fish (Oreochromis niloticus) in the New Valley Governorate.

A Review of Chemical Contaminants in Marine and Fresh Water Fish in Nigeria

Identification of Causes and The Existence of Mercury and Chromium in Sediment and Sea Water in Kendari Bay

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