Metallic elements in aquatic herpetofauna (Crocodylia; Testudines) from a lentic Atlantic rainforest environment in northeastern Brazil

Santos, Rayssa Lima Dos; Correia, Jozelia Maria de Sousa; Paim, Ana Paula S.; Oliveira, Lourinalda Luiza da Silva Selva de; Diniz, George Tadeu Nunes; Santos, Ednilza Maranhão dos

doi:10.1007/s10661-021-09076-0

Cited by 4 publications

(3 citation statements)

References 32 publications

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“…Thus, studies to determine the levels of mineral elements and to evaluate their adverse effects in free-ranging freshwater turtles are scarce, and those already carried out have used only blood (Burger et al 2010;Piña et al 2009;Santos 2021). The present study is the pioneer in using different biological samples (serum, muscle, liver, and kidney) for quantifying minerals in P.geoffroanus from a river subjected to different anthropogenic impacts.…”

Section: Maximum Elemental Limits Established In the Legislationmentioning

confidence: 99%

“…In Brazil, Burger et al (2010) quanti ed As, Cd, Cr, Hg, Pb, and Se in the blood of four Amazonian species. In P. geoffroanus, studies of minerals in blood samples were carried out by Piña et al (2009) in São Paulo, resulting in the determination of Al, As, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se, Sn, Sr, and Zn, and by Santos et al (2021) in Pernambuco, with animals of the Tapacurá River reservoir, in which Al, Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn were quanti ed. To our knowledge, then, there have been no studies of this nature in which, in addition to blood, other biological samples have been used.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of metal exposure through the composition of essential and toxic micro-minerals in freshwater turtles (Phrynops geoffroanus) from a Brazilian river

Fonseca

Silva

Rodrigues

et al. 2023

Environ Sci Pollut Res

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This study aimed to evaluate the metal exposure through the concentration of essential and toxic micro-minerals in biological samples of Phrynops geoffroanus from an anthropized river. The work was carried out in four areas with different ow characteristics and uses of the river, where individuals of both sexes were captured during the dry and rainy seasons. The elements Al, Cd, Co, Cr, Cu, Fe, Mn, Mo, Ni, Pb, and Zn, were quanti ed in samples of serum (168), muscle (62), liver (61), and kidney (61) by Inductively Coupled Plasma Optical Emission Spectrometry. The concentration of the elements varied according to the sample type, being higher in the liver and the kidney. In the serum, many elements were below the limit of quanti cation, but it was possible to determine Al, Cu, Fe, Mn, Pb, and Zn. The liver showed high levels of Cu, Fe, and Pb, and muscle for Ni, Pb, and Zn, with most of the elements accumulated in the kidney tissue (Al, Cd, Co, Cr, Mn, Mo, and Ni). There was no signi cant difference between sex in the accumulation of elements. Between seasons, Cu was higher in serum and Mn in muscle and liver in the dry period, while in the kidney, almost all the elements were higher in the rainy period. The concentrations of the elements in the samples indicated a high degree of environmental contamination, representing risk in the use of the river and consumption of food from local sheries. * Values below the limit of quanti cation (LOQ) of the method.Signi cant p-values are shown in bold font. Table 6Comparison between the maximum limits of the elements in the Brazilian norms and the lowest mean found in the studied areas for Phrynops geoffroanus samples from the Capibaribe River, Pernambuco, Brazil.

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Section: Maximum Elemental Limits Established In the Legislationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluation of metal exposure through the composition of essential and toxic micro-minerals in freshwater turtles (Phrynops geoffroanus) from a Brazilian river

Fonseca

Silva

Rodrigues

et al. 2023

Environ Sci Pollut Res

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“…The scarcity of studies reporting interelementary correlations in whole blood from crocodilians poses challenges in providing a comprehensive discussion of the data pertinent to these results. Dos Santos, de Sousa Correia, Paim, et al (2021) observed relationships in the blood of C. latirostris captured in the TR. They reported positive correlations in concentrations between Cr and Al ( r = 0.52), similar to the findings in our study.…”

Section: Discussionmentioning

confidence: 99%

Nondestructive Evaluation of Metal Bioaccumulation and Biochemical Biomarkers in Blood of Broad‐Snouted Caiman (Caiman latirostris) from Northeastern Brasil

dos Santos,

Mariz Jr.,

Mascarenhas‐Júnior

et al. 2024

Enviro Toxic and Chemistry

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Studies on the bioaccumulation and toxicity of contaminants in Crocodylians are scarce. We evaluated alterations in concentrations of the nondestructive biomarkers butyrylcholinesterase (BChE), glutathione‐S‐transferase (GST), superoxide dismutase (SOD), and reduced glutathione (GSH), together with bioaccumulation of the metals iron (Fe), copper (Cu), zinc (Zn), manganese (Mn), chronium (Cr), aluminium (Al), and lead (Pb) in Caiman latirostris captured in Tapacurá Reservoir (TR; São Lourenço da Mata, Pernambuco, Brasil), in urbanized areas of Pernambuco State (UA; Brasil) and from the AME Brasil caiman farm (AF; Marechal Deodoro, Alagoas, Brasil); the latter was used as a potential reference with low levels of contamination. For metal analysis, 500 µL of blood was digested in 65% HNO3 and 30% H2O2. The samples were analyzed by inductively coupled plasma–optical emission spectrometry. For analysis of biomarkers, an aliquot of blood was centrifuged to obtain plasma in which biochemical assays were performed. Blood concentrations of metals analyzed in animals from AF were lower compared with TR and UA, confirming that animals from the caiman farm could be used as references with low levels of contamination. Iron, Cu, Mn, Al, and Pb exceeded toxic levels for other vertebrates in animals from TR and UA. Butyrylcholinesterase activity showed significant reduction in adults from UA and TR compared with AF. An increase in the activity of GST and GSH, in adults of TR and UA in relation to AF, was verified. Superoxide dismutase activity showed a significant reduction in adults of TR in relation to AF, and the concentrations of Cu and Mn were negatively correlated with SOD activity. Animals from UA and TR showed greater concentrations of the analyzed metals compared with reference animals, and changes in biomarkers were seen, confirming the potential of these nondestructive chemical and biological parameters in blood of C. latirostris for biomonitoring of pollution. Environ Toxicol Chem 2024;00:1–18. © 2024 SETAC

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Heavy Metals in the Blood Serum and Feces of Mugger Crocodile (Crocodylus palustris) in Sistan and Baluchistan Province, Iran

Gholamhosseini

Banaee²,

Soltanian

et al. 2021

Biol Trace Elem Res

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Metallic elements in aquatic herpetofauna (Crocodylia; Testudines) from a lentic Atlantic rainforest environment in northeastern Brazil

Cited by 4 publications

References 32 publications

Evaluation of metal exposure through the composition of essential and toxic micro-minerals in freshwater turtles (Phrynops geoffroanus) from a Brazilian river

Evaluation of metal exposure through the composition of essential and toxic micro-minerals in freshwater turtles (Phrynops geoffroanus) from a Brazilian river

Nondestructive Evaluation of Metal Bioaccumulation and Biochemical Biomarkers in Blood of Broad‐Snouted Caiman (Caiman latirostris) from Northeastern Brasil

Heavy Metals in the Blood Serum and Feces of Mugger Crocodile (Crocodylus palustris) in Sistan and Baluchistan Province, Iran

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