Helminth fauna and histopathology associated with parasitic infections in Phrynops geoffroanus (Schweigger, 1812) (Testudines, Chelidae) in a Brazilian river subjected to anthropogenic activities

Fonseca, Cristina Farias da; Rojas, Nicolas Tarmeño; Vieira, Fabiano Matos; Ferreira, Ana Paula dos Santos; Rodrigues, Midiã da Silva; Barros, Maria Edna Gomes de; Júnior, Valdemiro Amaro da Silva; Moura, Geraldo Jorge Barbosa de; Oliveira, Jaqueline Bianque de

doi:10.1016/j.vprsr.2021.100639

Cited by 8 publications

(7 citation statements)

References 44 publications

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“…1). The areas of study are the same as those mentioned by Fonseca et al (2021) and are more than 30 km apart and exhibited different river ow characteristics, climatic regions, and anthropogenic activities.…”

Section: Study Areasmentioning

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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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: Study Areasmentioning

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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“…References: (1) Vicente et al (1993); (2) Viana et al (2016); (3) Pereira et al (2018); (4) Fonseca et al (2021)…”

Section: Resultsmentioning

confidence: 99%

Checklist of parasites associated with ʻreptiles’ in Northeast Brazil

et al. 2023

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Reptiles, as well as other vertebrate groups, harbour a significant diversity of parasitic organisms, from nematodes and other helminths to viruses and bacteria. The Northeast is one of the richest regions in Brazil in terms of the reptile diversity, number of species and endemism. Parasites are diverse organisms and knowledge about the parasitic fauna of vertebrates is an important factor in understanding the ecological relationships between hosts and the environment. Studies on the parasitic fauna of reptiles in South America have increased in the past few years. The present review is a compilation of 122 studies published from 1924 to 2021. We present information on 101 species of reptiles from five groups (amphisbaenians, crocodile, testudines, snakes and lizards) and 183 parasitic taxa belonging to four phyla: Nematoda; Arthropoda; Platyhelminthes; and Acanthocephala. Nematodes were the most frequently recorded species. Lizards and snakes had more records of parasitism and higher levels of parasite richness and diversity. Ceará was the state with most studies and recorded cases of parasite–host association. The Caatinga and Atlantic Forest were the most investigated environments. The objective of this review was to contribute knowledge on the parasitic biodiversity in reptiles from Northeast Brazil, which may help identify gaps in our knowledge and guide future studies.

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“…3 Although fecal analysis was not included in this study, the increase in Eos in females may occur due to larger body size and reproductive physiology. 22 In addition to being larger, females use more energy in the formation of oocytes and egg laying, 45 and for this reason, ingest more food than males, 47 increasing the risk of parasite infection. 22 Bas (RV) were higher in captive individuals.…”

Section: Discussionmentioning

confidence: 99%

“…22 In addition to being larger, females use more energy in the formation of oocytes and egg laying, 45 and for this reason, ingest more food than males, 47 increasing the risk of parasite infection. 22 Bas (RV) were higher in captive individuals. Chelonian Bas contain histamine, carry superficial immunoglobulins, and have immune capacities similar to mammalian Bas.…”

Section: Discussionmentioning

confidence: 99%

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Influence of Season, Environment, and Sex on Selected Blood Parameters of Geoffroy's Side-Necked Turtles, Phrynops Geoffroanus (Schweigger, 1812)

Pulcherio,

Rocha,

de Barros

et al. 2023

Journal of Zoo and Wildlife Medicine

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Helminth fauna and histopathology associated with parasitic infections in Phrynops geoffroanus (Schweigger, 1812) (Testudines, Chelidae) in a Brazilian river subjected to anthropogenic activities

Cited by 8 publications

References 44 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

Checklist of parasites associated with ʻreptiles’ in Northeast Brazil

Influence of Season, Environment, and Sex on Selected Blood Parameters of Geoffroy's Side-Necked Turtles, Phrynops Geoffroanus (Schweigger, 1812)

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