Accumulation of Cadmium and Lead in Commercially Important Fish Species in the Gulf of Gemli̇k, Marmara Sea, Turkey

Kayhan, Figen Esin; Büyükurgancı, Nilüfer; Kaymak, Güllü

doi:10.18864/tjas201716

Cited by 4 publications

(2 citation statements)

References 17 publications

(20 reference statements)

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“…5 b), elevated lead content was observed in the gills. Numerous studies have noted this trend, particularly following water-borne exposure in different fish species such as Tilapia zillii [ 123 ], Clarias gariepinus [ 104 , 124 ], starry flounder ( Platichthys stellatus ) [ 125 ], Solea vulgaris [ 126 ], and common carp Cyprinus carpio [ 127 ]. The gills’ larger surface area, directly exposed to external water pollutants, facilitates rapid diffusion and absorption of toxic metals through respiration and osmoregulation mechanisms [ 124 , 128 ].…”

Section: Discussionmentioning

confidence: 99%

Aquatic assessment of the chelating ability of Silica-stabilized magnetite nanocomposite to lead nitrate toxicity with emphasis to their impact on hepatorenal, oxidative stress, genotoxicity, histopathological, and bioaccumulation parameters in Oreochromis niloticus and Clarias gariepinus

Khalefa,

AbuBakr,

Aljuaydi

et al. 2024

BMC Vet Res

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Background In recent years, anthropogenic activities have released heavy metals and polluted the aquatic environment. This study investigated the ability of the silica-stabilized magnetite (Si-M) nanocomposite materials to dispose of lead nitrate (Pb(NO3)2) toxicity in Nile tilapia and African catfish. Results Preliminary toxicity tests were conducted and determined the median lethal concentration (LC50) of lead nitrate (Pb(NO3)2) to Nile tilapia and African catfish to be 5 mg/l. The sublethal concentration, equivalent to 1/20 of the 96-hour LC50 Pb(NO3)2, was selected for our experiment. Fish of each species were divided into four duplicated groups. The first group served as the control negative group, while the second group (Pb group) was exposed to 0.25 mg/l Pb(NO3)2 (1/20 of the 96-hour LC50). The third group (Si-MNPs) was exposed to silica-stabilized magnetite nanoparticles at a concentration of 1 mg/l, and the fourth group (Pb + Si-MNPs) was exposed simultaneously to Pb(NO3)2 and Si-MNPs at the same concentrations as the second and third groups. Throughout the experimental period, no mortalities or abnormal clinical observations were recorded in any of the treated groups, except for melanosis and abnormal nervous behavior observed in some fish in the Pb group. After three weeks of sublethal exposure, we analyzed hepatorenal indices, oxidative stress parameters, and genotoxicity. Values of alkaline phosphatase (ALP), gamma-glutamyl transferase (GGT), urea, and creatinine were significantly higher in the Pb-intoxicated groups compared to the control and Pb + Si-MNPs groups in both fish species. Oxidative stress parameters showed a significant decrease in reduced glutathione (GSH) concentration, along with a significant increase in malondialdehyde (MDA) and protein carbonyl content (PCC) concentrations, as well as DNA fragmentation percentage in the Pb group. However, these values were nearly restored to control levels in the Pb + Si-MNPs groups. High lead accumulation was observed in the liver and gills of the Pb group, with the least accumulation in the muscles of tilapia and catfish in the Pb + Si-MNPs group. Histopathological analysis of tissue samples from Pb-exposed groups of tilapia and catfish revealed brain vacuolation, gill fusion, hyperplasia, and marked hepatocellular and renal necrosis, contrasting with Pb + Si-MNP group, which appeared to have an apparently normal tissue structure. Conclusions Our results demonstrate that Si-MNPs are safe and effective aqueous additives in reducing the toxic effects of Pb (NO3)2 on fish tissue through the lead-chelating ability of Si-MNPs in water before being absorbed by fish.

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Section: Discussionmentioning

confidence: 99%

Aquatic assessment of the chelating ability of Silica-stabilized magnetite nanocomposite to lead nitrate toxicity with emphasis to their impact on hepatorenal, oxidative stress, genotoxicity, histopathological, and bioaccumulation parameters in Oreochromis niloticus and Clarias gariepinus

Khalefa,

AbuBakr,

Aljuaydi

et al. 2024

BMC Vet Res

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“…The observed results of elevated levels of erythrocytes, haematocrit and haemoglobin in blood could be the response of organism to hypoxia, as the compensation of the oxygen deficiency (Lal Shah, 2010). Hypoxia may be caused by blood oxygen deficiency resulting from cadmium damage to the gills, which inhibits gas exchange and disrupts osmoregulation (Atli et al, 2016;Yancheva et al, 2016, Kayhan et al, 2017. The results of fish behaviour observation indicated an increase in opercular movement, a tendency of the fish to congregate next to the filter and erratic swimming in the groups of fish exposed to cadmium, which suggest that the fish had respiratory problems.…”

Section: Discussionmentioning

confidence: 99%

Effects of Melatonin on Cadmium Accumulation and Haematological Parameters in Cadmium Intoxicated Prussian Carp (Carassius gibelio B.)

Drąg‐Kozak

Łuszczek‐Trojnar

Socha

et al. 2021

Annals of Animal Science

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The present study was performed to determine the effect of melatonin on cadmium accumulation and haematological parameters changes in females of Prussian carp (Carassius gibelio B.). The fish were exposed to a sublethal concentration of cadmium (0.4 and 4.0 mg/L) without or with melatonin implant (containing 18 mg melatonin hormone) for 1, 4, 7, 10 and 13 weeks. After the 7th week, Cd-exposed fish were divided into two groups. The first group of fish were subjected to depuration in clear water, while the second group remained exposed to the same concentrations of cadmium. After the 10th and 13th weeks of exposure the kidney, spleen, heart and blood were taken in order to determine the cadmium concentration and to analyse haematological parameters. The results of this study showed an increase in the concentration of cadmium in the tissues and blood in fish exposed to the highest dose (4.0 mg/L) of cadmium in water with a dependence on the exposure duration. Additionally, it was shown that melatonin administration reduced the cadmium concentration in the tissues and blood, and melatonin had a protective effect against cadmium accumulation. Moreover, the results showed a significant increase in blood parameters (RBC, Ht and Hb) in fish treated with the highest dose of cadmium. However, implantation of melatonin in cadmium-treated fish resulted in marked improvements in haematological parameters. Thus, melatonin can be a good implementation to alleviate, at least partially, the toxicity of cadmium.

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Heavy Metal Concentrations in Trachurus Mediterraneus and Merlangius Merlangus Captured from Marmara Sea, Turkey and Associated Health Risks

Köker

Aydın

Gaygusuz

et al. 2020

Environmental Management

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Accumulation of Cadmium and Lead in Commercially Important Fish Species in the Gulf of Gemli̇k, Marmara Sea, Turkey

Abstract: The aim of this study was to investigate the concentrations of cadmium (Cd) and lead (Pb)

Cited by 4 publications

References 17 publications

Aquatic assessment of the chelating ability of Silica-stabilized magnetite nanocomposite to lead nitrate toxicity with emphasis to their impact on hepatorenal, oxidative stress, genotoxicity, histopathological, and bioaccumulation parameters in Oreochromis niloticus and Clarias gariepinus

Aquatic assessment of the chelating ability of Silica-stabilized magnetite nanocomposite to lead nitrate toxicity with emphasis to their impact on hepatorenal, oxidative stress, genotoxicity, histopathological, and bioaccumulation parameters in Oreochromis niloticus and Clarias gariepinus

Effects of Melatonin on Cadmium Accumulation and Haematological Parameters in Cadmium Intoxicated Prussian Carp (Carassius gibelio B.)

Heavy Metal Concentrations in Trachurus Mediterraneus and Merlangius Merlangus Captured from Marmara Sea, Turkey and Associated Health Risks

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