In situ assessment of health status and heavy metal bioaccumulation of adult Pelophylax ridibundus (Anura: Ranidae) individuals inhabiting polluted area in southern Bulgaria

Zhelev, Zhivko M.; Arnaudova, D.; Popgeorgiev, Georgi; Tsonev, Stefan

doi:10.1016/j.ecolind.2020.106413

Cited by 35 publications

(18 citation statements)

References 93 publications

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“…Although trace elements are found in water at lower concentrations, relatively higher concentrations in frog tissues have been reported in several studies (Stolyar et al, 2008;Borković-Mitić et al, 2016;Prokić et al, 2016b;). The values of Cd, Pb, Cu, Zn, and As obtained in the present study were lower than those of another study (Zhelev et al, 2020) performed on P. ridibundus from two sites in Bulgaria. Trace element bioaccumulations in the muscles were determined in the order of Zn > Se > As > Cu > Pb > Cd in those Bulgarian populations (Zhelev et al, 2020) 2.5x10 -8 5.1x10 -6 2.6x10 -6 2.1x10 -7 3.0x10 -5 1.3x10 -5 1.8x10-4 İ 1.1x10 -4 8.9x10 -6 3.9x10 -7 5.6x10 -6 2.4x10 -6 7.6x10 -7 2.5x10 -5 1.8x10 -5 1.7x10-4 results (since Zn was in the first and Cd in the last order) were also observed in this study in terms of the order of trace elements.…”

Section: Comparison With Literaturecontrasting

confidence: 94%

“…Despite the effects of trace elements on amphibians' tissues have been well documented (Lee and Stuebing, 1990;Nebeker et al, 1995;Papadimitriou and Loumbourdis, 2002;Loumbourdis et al, 2007;Othman et al, 2009;Kaczor et al, 2013;Medina et al, 2016;Prokić et al, 2016aProkić et al, , b,2017Zhelev et al, 2020), there is limited work involving human health risk assessment via consumption of frog (Thanomsangad et al, 2019). Although Turkey is a major supplier of frogs (Çiçek et al, 2021) and Anatolian water frogs (Pelophylax spp.)…”

Section: Comparison With Literaturementioning

confidence: 99%

“…However, heavy metal studies on amphibians and human health risk assessment studies are scarce (Thanomsangad et al, 2019). This study used the marsh frog, Pelophylax ridibundus (Pallas, 1771), a frog species widely distributed in Europe and Asia and frequently consumed, as a bioindicator organism since it is one of the most pollution-resistant species (Zhelev et al, 2014;Zhelev et al, 2020, Mani et al, 2021. Since it is unknown whether the edible tissues of P. ridibundus that supplied from frog farms pose a health risk due to potentially harmful elements, this research was undertaken.…”

Section: Introductionmentioning

confidence: 99%

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Trace element bioaccumulation and health risk assessment derived from leg consumption of the marsh frog, Pelophylax ridibundus (Pallas, 1771)

Tatlı

Altunışık

Gedik

2022

EgeJFAS

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Amphibians, which can live in aquatic and terrestrial environments, are a good indicator of pollution in these areas. Although frog leg is not consumed frequently in some cuisines, including Turkey, it is important in terms of evaluating metal accumulation since it is preferred as human food in many European countries. In this study, the quantities of trace elements (Cd, Pb, Cu, Zn, As, Co, Cr, Ni, Mn, V) were measured in the edible tissues (muscles) of an amphibian species by sampling from two frog farms in Turkey. It was aimed to assess possible health hazards for humans by frog legs consumption comparing with the toxicological limit values, including provisional tolerable weekly intake (PTWI), target hazard quotient (THQ), and Hazard Index (HI). In general, the average values (µg kg−1) of trace elements were Zn (3.437.62)> Pb (69.22)> Cu (66.72)> Mn (35.07)> As (24.24)> Cr (11.47)> Ni (6.94)> Cd (6.51)> Co (2.97)> V (<0.001). The results indicated that concentrations of the analyzed trace elements were determined below the European Commission’s permitted levels and edible tissues of the marsh frog posed no carcinogenic health risk to humans.

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Section: Comparison With Literaturecontrasting

confidence: 94%

Section: Comparison With Literaturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Trace element bioaccumulation and health risk assessment derived from leg consumption of the marsh frog, Pelophylax ridibundus (Pallas, 1771)

Tatlı

Altunışık

Gedik

2022

EgeJFAS

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“…The main center of white blood cell maturation in anurans is the spleen ( Franco-Belussi and De Oliveira 2016 ). This organ plays a key role in the immune response of species to exogenous stimuli ( Rollins-Smith 2017 ; Yaparla et al 2017 ; Zhelev et al 2020 ). However, the activity and size of the spleen are shaped by organogenesis, whose development varies at the level of more inclusive lineages instead of species ( Neely and Flajnik, 2016 ).…”

Section: Discussionmentioning

confidence: 99%

Hematological parameters of a Neotropical wild frog population, with a phylogenetic perspective on blood cell composition in Anura

et al. 2021

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Hematological parameters can provide key information to an animal health status. However, this information is usually hard to obtain. Here, we described hematological parameters of Leptodactylus podicipinus in the Brazilian Pantanal. We measured red blood cell morphometrics, erythrogram, and leukogram. We also tested for phylogenetic signal in erythrogram and leukogram of 48 frog species from 15 families, testing if body size explains their variation. Lymphocytes were the most abundant leukocytes (> 60%) in Leptodactylus podicipinus, followed by neutrophils (∼10%). Given that L. podicipinus is an abundant and widely distributed species in central Brazil, knowing its hematological pattern can help stablish a baseline and improve its use as a bioindicator of environmental degradation. Mean corpuscular hemoglobin and value contributed more to the phylomorphospace of erythrogram, in which Leptodactylus spp. and Hypsiboas raniceps had lower values of these variables, while Bufotes viridis and Hyla arborea had high values. The phylogenetic signal was spread throughout the dimensions of leukogram phylomorphospace. The variables that most contributed to it were total leukocytes counts, lymphocytes and neutrophils. We also found a moderate phylogenetic signal for both the erythrogram and leukogram. Accordingly, body size accounted for a low proportion of variation in both the leukogram (4.7%) and erythrogram (0.57%). By combining phylogenetic comparative methods with hematological parameters, our results add a new perspective on the evolution of blood cell physiology in frogs.

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“…The species is also present in Albania; however, the main part of its range is within Greece [3]. The western Palaearctic water frog of the genus Pelophylax includes several distinct species and has been investigated in several phylogenetic, morphological, and ecological studies [4][5][6][7][8][9][10]. The populations of P. epeiroticus (Epirus Water Frog) are suspected to be decreasing due to ongoing decline in the extent and quality of its habitat, thus improved management measures are required for the protected areas and Natura 2000 sites where the species appears [3].…”

Section: Introductionmentioning

confidence: 99%

Proximate Composition, Predictive Analysis and Allometric Relationships, of the Edible Water Frog (Pelophylax epeiroticus) in Lake Pamvotida (Northwest Greece)

et al. 2022

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The edible water frog Pelophylax epeiroticus, distributed mainly in Northwest Greece and utilized commercially as food, was investigated in lake Pamvotida (Ioannina). The objective was to assess aspects of population structure (sex ratio, morphometric characteristics, allometric relationships) and proximate composition of the Epirus water frog (Pelophylax epeiroticus). Commercial samples (31 females and 54 males) were obtained and sex ratio, morphometric characteristics, allometric relationships and proximate composition were assessed. A significantly lower abundance of females was indicated (31 females and 54 males). Body length range was higher in females (females 3.4 mm, males 2.6 mm), whereas total weight range was higher in males (females 45.08 gr, males 48.35 gr). Differences in allometric relationships were indicated between sexes. The high protein (15.93 ± 3.32) and low lipid (0.25 ± 0.13) contents indicated that P. epeiroticus is an excellent food source of high nutritional value. A tree classification algorithm indicated that the principal contributing component for sex classification was dry matter, followed by a proportion of edible flesh and protein content. A predicted future increase in demand for wild-caught individuals requires the use of a suitable management plan, coupled with the development of farming practices aiming to assure the sustainable exploitation of this important resource and alleviate the pressure on its populations.

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In situ assessment of health status and heavy metal bioaccumulation of adult Pelophylax ridibundus (Anura: Ranidae) individuals inhabiting polluted area in southern Bulgaria

Cited by 35 publications

References 93 publications

Trace element bioaccumulation and health risk assessment derived from leg consumption of the marsh frog, Pelophylax ridibundus (Pallas, 1771)

Trace element bioaccumulation and health risk assessment derived from leg consumption of the marsh frog, Pelophylax ridibundus (Pallas, 1771)

Hematological parameters of a Neotropical wild frog population, with a phylogenetic perspective on blood cell composition in Anura

Proximate Composition, Predictive Analysis and Allometric Relationships, of the Edible Water Frog (Pelophylax epeiroticus) in Lake Pamvotida (Northwest Greece)

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