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Bahl MF, Salgado Costa C, Demetrio PM, Mac Loughlin TM, Arruti ME, Brodeur JMC, Natale GS. Integration of a battery of biomarkers to evaluate the health status of field-collected frogs of Leptodactylus luctator living in ecosystems with different anthropogenic disturbances. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 933:173174. [PMID: 38740213 DOI: 10.1016/j.scitotenv.2024.173174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 03/20/2024] [Accepted: 05/10/2024] [Indexed: 05/16/2024]
Abstract
Amphibians are the most threatened group of vertebrates because they have certain biological and ecological characteristics that make them sensitive to environmental changes. The aim of this study was to evaluate the health status of field-collected adult frogs of Leptodactylus luctator (Amphibia, Anura) living in sites with different anthropogenic disturbances (florihorticulture, petrochemical industry and sewage discharges) and a reference site without any detectable influence of such activities. To this end, a battery of 21 biomarkers (hematological, biochemical and individual biomarkers) was studied using a multivariate approach that allows us to evaluate the relationship between them and provide information on their usefulness. The frogs at the florihorticulture, petrochemical and sewage discharges sites exhibited several biomarkers far from homeostasis. In addition, we identified 11 of 21 biomarkers that were useful indicators of the health status of the frogs and allowed discrimination between study sites in the following order: lymphocytes (98 %), neutrophils (45 %), hemoglobin (42 %), monocytes (41 %), fat body index (35 %), eosinophils (35 %), hepatosomatic index (33 %), mean corpuscular hemoglobin (32 %), thrombocytes (27 %), catalase in liver (26 %), and GST in liver (26 %). The results suggest that hematological biomarkers contribute the most to site separation, whereas biochemical biomarkers contribute the least. The integral interpretation of the results also allowed us to diagnose the different health status of L. luctator: The frogs from the petrochemical industry were the most negatively affected, followed by the frogs from the sewages discharges and finally the frogs from the florihorticulture and reference sites. This is the first field study with anurans in which so many biomarkers were examined.
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Affiliation(s)
- M F Bahl
- Centro de Investigaciones del Medio Ambiente (CIM), CONICET-UNLP, Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Buenos Aires, Argentina.
| | - C Salgado Costa
- Centro de Investigaciones del Medio Ambiente (CIM), CONICET-UNLP, Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Buenos Aires, Argentina.
| | - P M Demetrio
- Centro de Investigaciones del Medio Ambiente (CIM), CONICET-UNLP, Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Buenos Aires, Argentina.
| | - T M Mac Loughlin
- Centro de Investigaciones del Medio Ambiente (CIM), CONICET-UNLP, Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Buenos Aires, Argentina.
| | - M E Arruti
- Centro de Investigaciones del Medio Ambiente (CIM), CONICET-UNLP, Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Buenos Aires, Argentina.
| | - J M C Brodeur
- Instituto de Recursos Biológicos, Centro de Investigaciones de Recursos Naturales (CIRN), Instituto Nacional de Tecnología Agropecuaria (INTA), Hurlingham, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - G S Natale
- Centro de Investigaciones del Medio Ambiente (CIM), CONICET-UNLP, Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Buenos Aires, Argentina.
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de Albuquerque VJ, Folador A, Müller C, Pompermaier A, Hartmann M, Hartmann PA. How do different concentrations of aluminum and zinc affect the survival, body size, morphology and immune system of Physalaemus cuvieri (Fitzinger, 1826) tadpole? JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2024; 87:342-356. [PMID: 38310537 DOI: 10.1080/15287394.2024.2311828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
The assessment of amphibian responses as bioindicators of exposure to chemical pollutants is an important tool for conservation of native species. This study aimed to investigate the effects of chronic aluminum (Al) and zinc (Zn) exposure on survival, body size, morphology (malformations), and immune system (leukocyte profile) in P. cuvieri tadpoles. Ecotoxicological analyses were performed utilizing chronic toxicity tests in which 210 tadpoles at the 25th Gosner developmental stage were exposed to Al and Zn. Individuals of P. cuvieri were maintained in glass containers containing various concentrations of aluminum sulfate (0.1, 0.2, or 0.3 mg/L) and zinc sulfate (0.18, 0.27 or 0.35 mg/L), and tests were performed in triplicate. After 14 days, amphibians were weighed, measured and survival rate, malformations in the oral and intestine apparatus, leukocyte profile, and ratio between neutrophils and lymphocytes determined. The differing concentrations of Al and Zn did not produce lethality in P. cuvieri where 95% of the animals survived 326 hr following metal exposure. Individuals exposed to Zn achieved greater body growth and weight gain compared to controls. Aluminum increased weight gain compared controls. These metals also produced malformations of the oral and intestine apparatus and enhanced occurrence of hemorrhages, especially at the highest doses. Lymphocytes were the predominant cells among leukocytes, with lymphopenia and neutrophilia observed following Al and Zn treatment, as evidenced by elevated neutrophil/lymphocyte ratio, an important indicator of stress in animals. Data suggest that further studies need to be carried out, even with metal concentrations higher than those prescribed by CONAMA, to ensure the conservation of this species.
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Affiliation(s)
| | - Alexandre Folador
- Laboratório de Ecologia e Conservação, Universidade Federal da Fronteira Sul, Erechim, RS, Brasil
| | - Caroline Müller
- Laboratório de Ecologia e Conservação, Universidade Federal da Fronteira Sul, Erechim, RS, Brasil
| | - Aline Pompermaier
- Laboratório de Ecologia e Conservação, Universidade Federal da Fronteira Sul, Erechim, RS, Brasil
| | - Marília Hartmann
- Laboratório de Ecologia e Conservação, Universidade Federal da Fronteira Sul, Erechim, RS, Brasil
| | - Paulo Afonso Hartmann
- Laboratório de Ecologia e Conservação, Universidade Federal da Fronteira Sul, Erechim, RS, Brasil
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Zhelev Z, Minchev D, Angelov M. Blood parameters of adult marsh frogs Pelophylax ridibundus (Amphibia: Ranidae) in rice paddies subjected to intense agrochemical use. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:1368-1381. [PMID: 38036908 DOI: 10.1007/s11356-023-30974-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 11/05/2023] [Indexed: 12/02/2023]
Abstract
We present the results of an in situ study of a set of blood parameters in adult marsh frogs (Pelophylax ridibundus (Pallas 1771) from populations inhabiting the largest system of rice fields in Bulgaria, the Tsalapitsa rice fields (TRF), under chronic stress conditions. This study was conducted in spring 2022 to assess the health status of TRF frogs compared to that of frogs occupying a reference site (RS). Furthermore, this study also compared the results obtained for the TRF population with those obtained in a study conducted at the exact same location with P. ridibundus individuals in 2013 (Zhelev et al. 2018). This comparison highlights the potential effects of persistent use of agrochemicals (pesticides and fertilizers) on the marsh frogs of later generations. Our results suggest that the general health of marsh frogs in the polluted site (PS) in southern Bulgaria has severely deteriorated. Frogs of both sexes were anemic with weakened immune systems compared to those living in the RS. The long-term use of agrochemicals in the PS affected males to a greater extent than it did females. Statistically significant hypochromia was observed in males, combined with general leukopenia, neutrophilia, lymphopenia, monocytosis, eosinophilia, and higher neutrophil/lymphocyte (N/L) ratios.
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Affiliation(s)
- Zhivko Zhelev
- Department of Human Anatomy and Physiology, Faculty of Biology, Paisii Hilendarski University of Plovdiv, 24 Tsar Asen St, 4000, Plovdiv, Bulgaria
| | - Danail Minchev
- Department of Human Anatomy and Physiology, Faculty of Biology, Paisii Hilendarski University of Plovdiv, 24 Tsar Asen St, 4000, Plovdiv, Bulgaria.
| | - Mladen Angelov
- East Aegean River Basin Directorate, 35 Yanko Sakazov St, 4000, Plovdiv, Bulgaria
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Poliserpi MB, Brodeur JC. Behavioral and physiological changes in the passerine Agelaioides badius following the ingestion of coated seeds with imidacloprid in a 30-day experiment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167078. [PMID: 37717765 DOI: 10.1016/j.scitotenv.2023.167078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 09/05/2023] [Accepted: 09/12/2023] [Indexed: 09/19/2023]
Abstract
The wide use of neonicotinoid seed treatment represents a hazard for farmland birds that feed on treated seeds. This study aimed to characterize the long-term effects of the neonicotinoid imidacloprid (IMI) in the passerine grayish baywing (Agelaioides badius). The birds were fed ad libitum for 32 days only with seeds treated with 53.1 (Low, 11 % of LD50) and 514 (High, (112 % of LD50) mg IMI/kg seed; these concentrations representing respectively, 1.8 and 17.1 % of 3 g IMI/kg, an average application rate used to treat crop seeds in Argentina. The effects exerted by IMI on birds were evaluated at behavioral, physiological, hematological, genotoxic, and biochemical levels. No differences in food consumption were observed between Control and Low treatments birds, indicating a lack of aversion to treated seeds. High treatment birds only decreased their food consumption by 20 % in the first 3 days of exposure. Birds from High treatment experienced an early loss of body weight, reduction in their mobility, lack of response to threats (i.e., predator call and approaching person), and altered their use of the cage. On the contrary, birds from Low treatment experienced a delay in the onset of effects like reduction in mobility, lack of response to threats, and a tendency to reduce their body weight. At the end of exposure, glutathione S transferase activity in the plasma of treated birds decreased, and cholinesterase activity increased in the liver of treated birds. This study highlights that consumption equivalent to 1.8 % of the daily diet of baywings as IMI-treated seeds, is sufficient to generate behavioral and physiological alterations and death. In the wild, these effects may have ecological consequences, by impairing the survival of birds, representing a risk to farmland bird populations.
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Affiliation(s)
- Maria Belen Poliserpi
- Instituto de Recursos Biológicos, Centro de Investigaciones de Recursos Naturales (CIRN), Instituto Nacional de Tecnología Agropecuaria (INTA), 1686 Hurlingham, Buenos Aires, Argentina.
| | - Julie Celine Brodeur
- Instituto de Recursos Biológicos, Centro de Investigaciones de Recursos Naturales (CIRN), Instituto Nacional de Tecnología Agropecuaria (INTA), 1686 Hurlingham, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
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Tsukada E, Rodrigues CC, Jacintho JC, Franco-Belussi L, Jones-Costa M, Abdalla FC, Rocha TL, Salla RF. The amphibian's spleen as a source of biomarkers for ecotoxicity assessment: Historical review and trends. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 901:165915. [PMID: 37532037 DOI: 10.1016/j.scitotenv.2023.165915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 07/27/2023] [Accepted: 07/28/2023] [Indexed: 08/04/2023]
Abstract
Amphibians are very sensitive to many environmental changes, so these animals are considered good bioindicator models for ecotoxicology. Given the importance of the amphibian spleen for hematopoietic and immune responses, this can be a key organ for the evaluation of biomarkers to monitor the health of individuals in nature or in captivity. In this systematic review, we searched databases and summarized the main findings concerning the amphibian spleen as a source of possible biomarkers applied in different scientific fields. The searches resulted in 83 articles published from 1923 to 2022, which applied the use of splenic samples to evaluate the effects of distinct stressors on amphibians. Articles were distributed in more than twenty countries, with USA, Europe, and Brazil, standing out among them. Publications focused mainly on anatomical and histomorphological characterization of the spleen, its physiology, and development. Recently, the use of splenic biomarkers in pathology and ecotoxicology began to grow but many gaps still need to be addressed in herpetological research. About 85 % of the splenic biomarkers showed responses to various stressors, which indicates that the spleen can provide numerous biomarkers to be used in many study fields. The limited amount of information on morphological description and splenic anatomy in amphibians may be a contributing factor to the underestimated use of splenic biomarkers in herpetological research around the world. We hope that this unprecedented review can instigate researchers to refine herpetological experimentation, using the spleen as a versatile and alternative source for biomarkers in ecotoxicology.
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Affiliation(s)
- Elisabete Tsukada
- Post-graduation Program of Biotechnology and Environmental Monitoring, Federal University of São Carlos (UFSCar), campus Sorocaba, Sorocaba, São Paulo, Brazil
| | - Cândido C Rodrigues
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Brazil
| | - Jaqueline C Jacintho
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Brazil
| | - Lilian Franco-Belussi
- Departament of Biological Sciences, São Paulo State University, campus São José do Rio Preto, São Paulo, Brazil; Laboratory of Experimental Pathology (LAPex), Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Monica Jones-Costa
- Department of Biology, Federal University of São Carlos (UFSCar), campus Sorocaba, Sorocaba, São Paulo, Brazil
| | - Fábio Camargo Abdalla
- Post-graduation Program of Biotechnology and Environmental Monitoring, Federal University of São Carlos (UFSCar), campus Sorocaba, Sorocaba, São Paulo, Brazil; Laboratory of Structural and Functional Biology, Federal University of São Carlos (UFSCar), campus Sorocaba, Sorocaba, São Paulo, Brazil
| | - Thiago Lopes Rocha
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Brazil
| | - Raquel F Salla
- Post-graduation Program of Biotechnology and Environmental Monitoring, Federal University of São Carlos (UFSCar), campus Sorocaba, Sorocaba, São Paulo, Brazil; Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Brazil.
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Poliserpi MB, Noya Abad T, De Gerónimo E, Aparicio V, Brodeur JC. Behavioral and physiological response of the passerine bird Agelaioides badius to seeds coated with imidacloprid. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:80293-80310. [PMID: 37294486 DOI: 10.1007/s11356-023-28074-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 05/30/2023] [Indexed: 06/10/2023]
Abstract
Neonicotinoids are globally used insecticides, and there are increasing evidence on their negative effects on birds. This study is aimed at characterizing the behavioral and physiological effects of the neonicotinoid imidacloprid (IMI) in a songbird. Adults of Agelaioides badius were exposed for 7 days to non-treated peeled millet and to peeled millet treated with nominal concentrations of 75 (IMI1) and 450 (IMI2) mg IMI/kg seed. On days 2 and 6 of the trial, the behavior of each bird was evaluated for 9 min by measuring the time spent on the floor, the perch, or the feeder. Daily millet consumption, initial and final body weight, and physiological, hematological, genotoxic, and biochemical parameters at the end of exposure were also measured. Activity was greatest on the floor, followed by the perch and the feeder. On the second day, birds exposed to IMI1and IMI2 remained mostly on the perch and the feeder, respectively. On the sixth day, a transition occurred to sectors of greater activity, consistent with the disappearance of the intoxication signs: birds from IMI1 and IMI2 increased their time on the floor and the perch, respectively. Control birds always remained most of the time on the floor. IMI2 birds significantly decreased their feed intake by 31% the first 3 days, compared to the other groups, and significantly decreased their body weight at the end of the exposure. From the set of hematological, genotoxic, and biochemical parameters, treated birds exhibited an alteration of glutathione-S-transferase activity (GST) in breast muscle; the minimal effects observed are probably related to the IMI administration regime. These results highlight that the consumption of less than 10% of the bird daily diet as IMI-treated seeds trigger effects at multiple levels that can impair bird survival.
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Affiliation(s)
- Maria Belen Poliserpi
- Instituto de Recursos Biológicos, Centro de Investigaciones de Recursos Naturales (CIRN), Instituto Nacional de Tecnología Agropecuaria (INTA), Hurlingham, Buenos Aires, Argentina.
| | - Tatiana Noya Abad
- Departamento de Química Biológica, IQUIBICEN, Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
- Centro de Ciencias Naturales, Ambientales y Antropológicas (CCNAA), Universidad Maimónides, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Eduardo De Gerónimo
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
- Estación Experimental Agropecuaria Balcarce (EEA Balcarce), Instituto Nacional de Tecnología Agropecuaria (INTA), Ruta Nacional 226, Km. 73,5, Balcarce, Buenos Aires, Argentina
| | - Virginia Aparicio
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
- Estación Experimental Agropecuaria Balcarce (EEA Balcarce), Instituto Nacional de Tecnología Agropecuaria (INTA), Ruta Nacional 226, Km. 73,5, Balcarce, Buenos Aires, Argentina
| | - Julie Celine Brodeur
- Instituto de Recursos Biológicos, Centro de Investigaciones de Recursos Naturales (CIRN), Instituto Nacional de Tecnología Agropecuaria (INTA), Hurlingham, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
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Bilhalva LC, de Almeida BA, Colombo P, de Faria Valle S, Soares JF. Hematologic variables of free-living Leptodactylus luctator with and without hemoparasites and thrombidiform mites in southern Brazil. Vet Parasitol Reg Stud Reports 2023; 38:100834. [PMID: 36725158 DOI: 10.1016/j.vprsr.2023.100834] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 12/15/2022] [Accepted: 01/06/2023] [Indexed: 01/09/2023]
Abstract
It has been suggested that anuran amphibian parasites can cause clinical signs in situations of environmental imbalance. In the family Leptodactylidae, information about hematology is scarce, although these are well-known tools for the diagnosis and prognosis in clinical practice and potential bioindicators of environmental stress. The objective of this study is to describe Leptodactylus luctator hematology, to report the occurrence of hemoparasites and thrombidiform mites, and to compare the hematological variables under the presence and absence of these organisms. Ectoparasites and heparinized blood samples from 40 free-living specimens of L. luctator were collected for analysis. Hematologic variables and total plasma protein were compared between groups with and without hemoparasites and intradermal mites. As results, structures compatible with hemogregarines, Lankesterella sp., five morphotypes of Trypanosoma spp., microfilaria, Aegyptianella sp., an unidentified intraleukocytic hemoparasite, and frog erythrocytic virus (FEV) inclusion bodies were identified in the blood samples, besides Hannemania spp. intradermal mites. The hemoparasite occurrence was higher than previously reported in other anuran families and locations. Also, L. luctator has smaller red blood cells (RBCs) and white blood cells (WBCs), and a hyposegmentation of the neutrophil nucleus, when compared to many other amphibians. White blood cell, neutrophil, and monocyte counts were higher in animals parasitized by mites. There was no correlation between the number of parasitized RBCs and hematologic variables. This study provides anuran hematologic information, in addition to indicating a host reaction to infestation by Hannemania spp. mites, besides constituting the first record of the distribution of hemoparasites and intradermal mites in L. luctator of the study region.
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Affiliation(s)
- Lina Crespo Bilhalva
- Department of Veterinary Clinical Pathology, Veterinary Medicine College, Federal University of Rio Grande do Sul (UFRGS), 9090 Bento Gonçalves Ave., Porto Alegre 91540-000, Rio Grande do Sul, Brazil
| | - Bruno Albuquerque de Almeida
- Department of Veterinary Clinical Pathology, Veterinary Medicine College, Federal University of Rio Grande do Sul (UFRGS), 9090 Bento Gonçalves Ave., Porto Alegre 91540-000, Rio Grande do Sul, Brazil
| | - Patrick Colombo
- Zoobotanical Foundation of Rio Grande do Sul (FZB-RS), 1427 Dr. Salvador França Ave., Porto Alegre 90690-000, Rio Grande do Sul, Brazil
| | - Stella de Faria Valle
- Department of Veterinary Clinical Pathology, Veterinary Medicine College, Federal University of Rio Grande do Sul (UFRGS), 9090 Bento Gonçalves Ave., Porto Alegre 91540-000, Rio Grande do Sul, Brazil.
| | - João Fabio Soares
- Department of Veterinary Clinical Pathology, Veterinary Medicine College, Federal University of Rio Grande do Sul (UFRGS), 9090 Bento Gonçalves Ave., Porto Alegre 91540-000, Rio Grande do Sul, Brazil
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Brodeur JC, Damonte MJ, Rojas DE, Cristos D, Vargas C, Poliserpi MB, Andriulo AE. Concentration of current-use pesticides in frogs from the Pampa region and correlation of a mixture toxicity index with biological effects. ENVIRONMENTAL RESEARCH 2022; 204:112354. [PMID: 34767824 DOI: 10.1016/j.envres.2021.112354] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/11/2021] [Accepted: 11/06/2021] [Indexed: 06/13/2023]
Abstract
Contamination with current-use pesticides is frequently mentioned as a key factor in global amphibian declines although a limited number of studies have examined the mixture of pesticides accumulated by free-living frogs. This study examined the presence of 46 different pesticide residues in the muscle and kidney tissues of two frog species living in close association with row crops in the Pampa region of Argentina: The terrestrial Leptodactylus latinasus and the semi-aquatic Leptodactylus latrans. A total of 20 different pesticides were identified in frog tissues; chlorpyrifos-methyl, pirimiphos-methyl and acetochlor being the most frequently detected molecules. Overall, one or more pesticide residues (up to 12 in a single frog) were detected in 40-57 % of L. latrans. L. latinasus was found to present more pesticide detections than L. latrans. Interestingly, frog sampled in a natural reserve where no pesticides are applied presented an equivalent frequency of detections as frogs living near a crop. In L. latrans, the calculation of a pesticide toxicity index (PTI) permitted to highlight the existence of a strong positive correlation between PTI and liver GSH contents of females whereas, in males, PTI was negatively correlated with the perimeter of testicular seminiferous tubules. Males also presented near significant negative correlations between PTI and both body condition and the scaled fat index. These results indicate that frogs inhabiting agricultural regions are exposed to a complex and diffuse contamination by pesticide mixtures which is likely responsible for a number of biological effects that may be relevant at the population level.
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Affiliation(s)
- Julie Céline Brodeur
- Instituto de Recursos Biológicos, Centro de Investigaciones de Recursos Naturales (CIRN), Instituto Nacional de Tecnología Agropecuaria (INTA), Hurlingham, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina.
| | - María Jimena Damonte
- Instituto de Recursos Biológicos, Centro de Investigaciones de Recursos Naturales (CIRN), Instituto Nacional de Tecnología Agropecuaria (INTA), Hurlingham, Buenos Aires, Argentina
| | - Dante Emanuel Rojas
- Instituto de Tecnología de Alimentos Centro de Investigación de Agroindustria (CIA), Instituto Nacional de Tecnología Agropecuaria (INTA), Hurlingham, Buenos Aires, Argentina
| | - Diego Cristos
- Instituto de Tecnología de Alimentos Centro de Investigación de Agroindustria (CIA), Instituto Nacional de Tecnología Agropecuaria (INTA), Hurlingham, Buenos Aires, Argentina
| | - Claudia Vargas
- Instituto de Microbiología y Parasitología Médica, Facultad de Medicina, Universidad de Buenos Aires, Argentina
| | - María Belén Poliserpi
- Instituto de Recursos Biológicos, Centro de Investigaciones de Recursos Naturales (CIRN), Instituto Nacional de Tecnología Agropecuaria (INTA), Hurlingham, Buenos Aires, Argentina
| | - Adrián Enrique Andriulo
- Estación Experimental Agropecuaria Pergamino, Instituto Nacional de Tecnología Agropecuaria (INTA), Pergamino, Buenos Aires, Argentina
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Poliserpi MB, Cristos D, Pérez-Iglesias JM, Brodeur JC. Tissue distribution and sublethal effects of imidacloprid in the South American grayish baywing (Agelaioides badius). CHEMOSPHERE 2021; 284:131327. [PMID: 34216921 DOI: 10.1016/j.chemosphere.2021.131327] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 06/16/2021] [Accepted: 06/22/2021] [Indexed: 06/13/2023]
Abstract
The neonicotinoids are globally used insecticides, which have been shown to cause negative impacts on birds. The current study aimed to evaluate the distribution of the neonicotinoid imidacloprid (IMI) in the tissues of a songbird and identify related physiological effects. Adults of the grayish baywing (Agelaioides baduis) were administered with a single dose of 35 mg IMI/kg, and the IMI concentration was evaluated in liver, kidney and plasma at 4, 12, 24, and 48 h after dosing. At the same time points, effects on hematological, genetic and enzymatic parameters were assessed. Results showed that IMI was absorbed before 4 h, and eliminated at 48 h, in every tissue, and the highest concentrations were detected in plasma. Baywings showed intoxication signs and reduced mobility within the first 5 min post-dosing. Hematological parameters: red blood cells, packed cell volume, hemoglobin, and their derived indices exhibited a transient elevation 24 h after dosing, which coincided with maximum concentrations of IMI in the tissues. No effects were observed on the genotoxicity parameters evaluated: micronuclei and comet assay. Treated birds exhibited an alteration of cholinesterases activity in the muscle and plasma, and of glutathione-S-transferase (GST) activity in the plasma, brain, liver, and muscle. Based on the results obtained, the combined detection of IMI and inhibition of GST activity in the plasma is suggested as a non-lethal biomarker of IMI exposure in wild birds. As efficient field monitoring depends on the availability of proven biomarkers, the current study provides valuable tools for bird conservation in agroecosystems.
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Affiliation(s)
- María Belén Poliserpi
- Instituto de Recursos Biológicos, Centro de Investigaciones de Recursos Naturales (CIRN), Instituto Nacional de Tecnología Agropecuaria (INTA), Hurlingham, Buenos Aires, Argentina.
| | - Diego Cristos
- Instituto Tecnología de Alimentos, Centro de Investigación de Agroindustria (CIA), Instituto Nacional de Tecnología Agropecuaria (INTA), Hurlingham, Buenos Aires, Argentina
| | - Juan Manuel Pérez-Iglesias
- INQUISAL, Universidad Nacional de San Luis, San Luis, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Julie Céline Brodeur
- Instituto de Recursos Biológicos, Centro de Investigaciones de Recursos Naturales (CIRN), Instituto Nacional de Tecnología Agropecuaria (INTA), Hurlingham, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
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10
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Franco-Belussi L, Provete DB, Leão TRF, Siqueira MS, Valverde BSL, Martins BO, De Oliveira C, Fernandes CE. Hematological parameters of a Neotropical wild frog population, with a phylogenetic perspective on blood cell composition in Anura. Curr Zool 2021; 68:361-369. [PMID: 35592344 PMCID: PMC9113348 DOI: 10.1093/cz/zoab059] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 07/20/2021] [Indexed: 01/25/2023] Open
Abstract
Hematological parameters can provide key information to an animal health status. However, this information is usually hard to obtain. Here, we described the 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 the 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 L. 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 establish 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, whereas Bufotes viridis and Hyla arborea had high values. The phylogenetic signal was spread throughout the dimensions of the 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 applying phylogenetic comparative methods to hematological parameters, our results add a new perspective on the evolution of blood cell physiology in frogs.
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Affiliation(s)
- Lilian Franco-Belussi
- Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul 79002970, Brazil
| | - Diogo B Provete
- Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul 79002970, Brazil
- Gothenburg Global Biodiversity Centre, Göteborg, Box 100, S 405 30, Sweden
| | - Taynara R F Leão
- Graduate Program in Biodiversity. Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista, São José do Rio Preto, São Paulo, Brazil
| | - Mayara S Siqueira
- Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul 79002970, Brazil
| | - Bruno S L Valverde
- Graduate Program in Biodiversity. Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista, São José do Rio Preto, São Paulo, Brazil
| | - Brenda O Martins
- Graduate Program in Animal Biology. Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Classius De Oliveira
- Departamento de Biologia. Instituto de Biociências, Letras e Ciências Exatas, São José do Rio Preto, Universidade Estadual Paulista, Brazil
| | - Carlos Eurico Fernandes
- Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul 79002970, Brazil
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11
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Brodeur JC, Poletta GL, Simoniello MF, Carriquiriborde P, Cristos DS, Pautasso N, Paravani E, Poliserpi MB, D'Andrea MF, Gonzalez PV, Aca VL, Curto AE. The problem with implementing fish farms in agricultural regions: A trial in a pampean pond highlights potential risks to both human and fish health. CHEMOSPHERE 2021; 262:128408. [PMID: 33182150 DOI: 10.1016/j.chemosphere.2020.128408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/12/2020] [Accepted: 09/20/2020] [Indexed: 06/11/2023]
Abstract
The safety of creating fish farms in agricultural settings was evaluated by growing Piaractus mesopotamicus in a pond, while crops where cultivated in a nearby field under a pesticide application regime typical of the Pampa region. Atrazine, glyphosate and its metabolite, aminomethylphosphonic acid (AMPA), were detected in the water of the pond at concentrations ranging between 92 and 118 μg/L for atrazine, 12 and 221 μg/L for glyphosate and 21 and 117 μg/L for AMPA. Atrazine and malathion were detected in fish muscles at concentrations ranging between 70 and 105 μg/kg for atrazine and 8.6 and 23.7 μg/kg for malathion. Compared to fish raised in a pisciculture, fish from the agricultural pond presented reduced values of pack cell volume, hemoglobin, mean corpuscular hemoglobin and mean corpuscular hemoglobin concentration, together with significantly greater cholinesterase activity in both plasma and liver and reduced glutathione-S-transferase activity in the liver. A comet assay also demonstrated that P. mesopotamicus from the agricultural pond presented a significantly greater level of DNA damage in both erythrocytes and gill cells. Overall, the present study demonstrates that pisciculture ponds established in an agricultural setting may receive pesticides applied to nearby cultures and that these pesticides may be taken up by the fish and affect their physiology and health. The accumulation of pesticides residues in fish flesh may also present a risk to human consumers and should be closely controlled.
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Affiliation(s)
- Julie C Brodeur
- Instituto de Recursos Biológicos, Centro de Investigaciones de Recursos Naturales (CIRN), Instituto Nacional de Tecnología Agropecuaria (INTA), Hurlingham, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina.
| | - Gisela L Poletta
- Cátedra de Toxicología, Farmacología y Bioquímica Legal, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Littoral, Ciudad Universitaria, Paraje El Pozo S/N (3000), Santa Fe, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - M Fernanda Simoniello
- Cátedra de Toxicología, Farmacología y Bioquímica Legal, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Littoral, Ciudad Universitaria, Paraje El Pozo S/N (3000), Santa Fe, Argentina
| | - Pedro Carriquiriborde
- Centro de Investigaciones del Medioambiente (CIM) Departamento de Química, Facultad de Ciencias Exactas Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Diego S Cristos
- Instituto Tecnología de Alimentos, Centro de Investigación de Agroindustria (CIA), Instituto Nacional de Tecnología Agropecuaria (INTA), Hurlingham, Buenos Aires, Argentina
| | - Nestor Pautasso
- Estacion Experimental Paraná, Centro Regional Entre Ríos, Instituto Nacional de Tecnología Agropecuaria (INTA), Ruta 11, Km. 12.5 (3100), Paraná, Entre Ríos, Argentina
| | - Enrique Paravani
- Facultad de Ingeniería. Universidad de Entre Ríos, Oro Verde, Entre Ríos, Argentina
| | - M Belen Poliserpi
- Instituto de Recursos Biológicos, Centro de Investigaciones de Recursos Naturales (CIRN), Instituto Nacional de Tecnología Agropecuaria (INTA), Hurlingham, Buenos Aires, Argentina
| | - M Florencia D'Andrea
- Instituto de Recursos Biológicos, Centro de Investigaciones de Recursos Naturales (CIRN), Instituto Nacional de Tecnología Agropecuaria (INTA), Hurlingham, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Patricia V Gonzalez
- Centro de Investigaciones del Medioambiente (CIM) Departamento de Química, Facultad de Ciencias Exactas Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Viviana López Aca
- Centro de Investigaciones del Medioambiente (CIM) Departamento de Química, Facultad de Ciencias Exactas Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Alejandro E Curto
- Dirección Centro Regional Entre Ríos, Instituto Nacional de Tecnología Agropecuaria (INTA), Ruta 11, Km. 12.5 (3100), Paraná, Entre Ríos, Argentina
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