1
|
Zebral YD, Righi BDP, Anni ISA, Escarrone ALV, Guillante T, Vieira CED, Costa PG, Bianchini A. Organic contamination and multi-biomarker assessment in watersheds of the southern Brazil: an integrated approach using fish from the Astyanax genus. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-33181-5. [PMID: 38607488 DOI: 10.1007/s11356-024-33181-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 02/28/2024] [Indexed: 04/13/2024]
Abstract
We aimed to examine the responses of pollution biomarkers in feral fish from Astyanax genus collected at three hydrographic regions in southern Brazil and the capacity of these tools to differentiate between various levels of contamination. To achieve this, levels of organochlorine pesticides (liver), as well as the biomarkers AChE (muscle and brain), TBARS (liver), and EROD (liver) were assessed. Collections were conducted in four municipalities (Alegrete, Caraá, Lavras, and Santa Vitória) during 1 year, encompassing winter and summer. Fish from Alegrete were the most contaminated overall, but animals sampled in Caraá, and Lavras also displayed elevated levels of current-use pesticides. Elevated levels of endosulfans, DDTs, HCHs, and current-use pesticides were accompanied by elevated levels of TBARS in the liver. Conversely, fish from Santa Vitória exhibited the highest levels of PAHs, accompanied by elevated levels of EROD in the liver and reduced levels of AChE in muscle and brain. TBARS proved to be a reliable biomarker for assessing impacts arising from pesticide accumulation, while EROD and AChE served as valuable indicators of impacts resulting from PAHs accumulation. Ultimately, the results obtained in this study demonstrate the reliable use of the proposed biomarkers for tracking biological impacts stemming from aquatic pollution using feral Astyanax as biomonitoring species.
Collapse
Affiliation(s)
- Yuri Dornelles Zebral
- Postgraduate Program in Physiological Sciences, Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, RS, 96203-900, Brazil
| | - Bruna Duarte Pereira Righi
- Postgraduate Program in Physiological Sciences, Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, RS, 96203-900, Brazil
| | - Iuri Salim Abou Anni
- Postgraduate Program in Physiological Sciences, Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, RS, 96203-900, Brazil
| | - Ana Laura Venquiaruti Escarrone
- Postgraduate Program in Physiological Sciences, Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, RS, 96203-900, Brazil
| | - Tainá Guillante
- Postgraduate Program in Physiological Sciences, Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, RS, 96203-900, Brazil
| | - Carlos Eduardo Delfino Vieira
- Postgraduate Program in Physiological Sciences, Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, RS, 96203-900, Brazil
| | - Patrícia Gomes Costa
- Postgraduate Program in Physiological Sciences, Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, RS, 96203-900, Brazil
| | - Adalto Bianchini
- Postgraduate Program in Physiological Sciences, Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, RS, 96203-900, Brazil.
| |
Collapse
|
2
|
Marchand E, Petit F, Alliot F, Blanchoud H, Costantini D, Guigon E, Martin N, Traore S, Goutte A. Contrasted Antibiotics and Pesticides Occurrence in Fish Exposed In Situ to Urban Effluents: A 20-Day Caging Experiment. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2023. [PMID: 38116996 DOI: 10.1002/etc.5810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 09/14/2023] [Accepted: 12/12/2023] [Indexed: 12/21/2023]
Abstract
Urban freshwater ecosystems receive a wide array of organic pollutants through wastewater-treatment plant (WWTP) discharges and agricultural runoff. Evaluating the fate and effects of antibiotics and pesticides can be a challenging task, especially the effects on freshwater vertebrates because of their abilities to metabolize and excrete these chemicals and because of their high mobility and escape behavior when exposed to stressful environmental conditions. In the present study, 37 wild gudgeons (Gobio gobio) were caged for a period of up to 20 days, upstream and downstream of a WWTP effluent discharge in the Orge River (a tributary of the Seine River, France). Levels of pesticides and antibiotics in fish muscles were monitored weekly and compared with environmental contamination (water and sediments). Our results highlighted a slight bioaccumulation of pesticides in the gudgeon muscles at the downstream site after 20 days of exposure. Concerning antibiotics, ofloxacin was the most detected compound in fish muscles (85% of occurrence) and ranged from undetectable to 8 ng g-1 dry weight. Antibiotic levels in fish muscle were not higher at the downstream site and did not increase with exposure duration, despite high levels in the water (up to 29 times greater than upstream). Potential ecotoxicological effects were also evaluated: Body condition did not differ between the caging location and exposure time. Three oxidative status markers in the fish livers showed significant shifts after 14 days of caging. Our results suggest a high clearance rate of antibiotics and, to a lesser extent, of pesticides in wild gudgeons, which could be explained by changes in xenobiotic metabolism with pollutant exposure. Environ Toxicol Chem 2024;00:1-11. © 2023 SETAC.
Collapse
Affiliation(s)
- Etienne Marchand
- UNIROUEN, UNICAEN, Normandie Université, Rouen, France
- CNRS, EPHE, Sorbonne Université, Paris, France
| | - Fabienne Petit
- UNIROUEN, UNICAEN, Normandie Université, Rouen, France
- CNRS, EPHE, Sorbonne Université, Paris, France
| | - Fabrice Alliot
- CNRS, EPHE, Sorbonne Université, Paris, France
- EPHE, PSL University, Sorbonne Université, CNRS, Paris, France
| | - Hélène Blanchoud
- CNRS, EPHE, Sorbonne Université, Paris, France
- EPHE, PSL University, Sorbonne Université, CNRS, Paris, France
| | - David Costantini
- UPMA, Muséum National d'Histoire Naturelle, CNRS, Paris, France
- Department of Ecological and Biological Sciences, Tuscia University, Viterbo, Italy
| | - Elodie Guigon
- CNRS, EPHE, Sorbonne Université, Paris, France
- EPHE, PSL University, Sorbonne Université, CNRS, Paris, France
| | | | - Sira Traore
- CNRS, EPHE, Sorbonne Université, Paris, France
- EPHE, PSL University, Sorbonne Université, CNRS, Paris, France
| | - Aurélie Goutte
- CNRS, EPHE, Sorbonne Université, Paris, France
- EPHE, PSL University, Sorbonne Université, CNRS, Paris, France
| |
Collapse
|
3
|
Lima ICM, Oliveira ICDSD, da Silva Sousa D, Couto NJP, Carvalho Neta RNF, Santos DMS. Evaluation of the Genotoxic and Histological Effects in Neotropical Fish Prochilodus Lacustris (Pisces, Prochilodontidae) in Conservation Area of the Brazilian Northeast. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2023; 112:4. [PMID: 38017119 DOI: 10.1007/s00128-023-03837-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 11/09/2023] [Indexed: 11/30/2023]
Abstract
Human activities significantly impact the aquatic biota in lacustrine environments, leading to negative environmental consequences. Due to this, this study was carried out to evaluate the genotoxic and histological biomarkers in the gills and kidneys of Prochilodus lacustris. The collection of fish and water was conducted in three distinct stations (S1, S2, S3) in an international protected area in northeast Brazil. The histological alterations index was used to assess changes in the gills and kidneys at a histological level. In addition, micronucleus and nuclear abnormalities tests were employed to examine damage to the genetic material. According to the frequency of Micronucleus, nuclear injuries, and the histopathology of gills and kidneys, it can be inferred that station S1 had the highest impact on the fish, causing significant harm. Based on our findings, the organisms residing in Lake Açu are adversely affected by the poor environmental conditions. This raises doubts about the effectiveness of the Protection Area by Humid Zone of International Interest in Northeast Brazil.
Collapse
Affiliation(s)
- Ingrid Caroline Moreira Lima
- Postgraduate Program in Conservation Ecology and Biodiversity, State University of Maranhão (Uema), University City Paulo, VI s/n, Cidade Operária, São Luís, Maranhão, Brazil.
| | - Itallo Cristian da Silva de Oliveira
- Postgraduate Program in Conservation Ecology and Biodiversity, State University of Maranhão (Uema), University City Paulo, VI s/n, Cidade Operária, São Luís, Maranhão, Brazil
| | - Denise da Silva Sousa
- Postgraduate Program in Conservation Ecology and Biodiversity, State University of Maranhão (Uema), University City Paulo, VI s/n, Cidade Operária, São Luís, Maranhão, Brazil
| | - Natália Jovita Pereira Couto
- Postgraduate Program in Aquatic Resources and Fisheries, State University of Maranhão (Uema), University City Paulo, VI s/n, Cidade Operária, São Luís, Maranhão, Brazil
| | - Raimunda Nonata Fortes Carvalho Neta
- Postgraduate Program in Conservation Ecology and Biodiversity, State University of Maranhão (Uema), University City Paulo, VI s/n, Cidade Operária, São Luís, Maranhão, Brazil
| | | |
Collapse
|
4
|
Córdoba-Tovar L, Marrugo-Negrete J, Ramos Barón PA, Calao-Ramos CR, Díez S. Toxic metal(loids) levels in the aquatic environment and nuclear alterations in fish in a tropical river impacted by gold mining. ENVIRONMENTAL RESEARCH 2023; 224:115517. [PMID: 36804317 DOI: 10.1016/j.envres.2023.115517] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/13/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
The Atrato River basin was protected by Colombian law due to anthropogenic impacts, mainly from illegal gold mining, which triggered a critical environmental health problem. In this study we quantified mercury (Hg), methylmercury (MeHg) and arsenic (As) concentrations in aquatic environmental matrices, and explored for the first-time nuclear degenerations in fish from the Atrato River. The median concentrations (μg/kg) for T-Hg, MeHg and As in fish were 195.0, 175.5, and 30.0; in sediments (μg/kg) 165.5, 13.8 and 3.1; and in water (ng/L), 154.7 for T-Hg and 2.1 for As. A 38% and 10% of the fish exceeded the WHO limit for the protection of populations at risk (200 μg Hg/kg) and for human consumption (500 μg Hg/kg); while As concentrations were below the international standard (1000 μg/kg) in all fish. The percentage of MeHg was 89.7% and the highest accumulation was observed in carnivorous fish (336.3 ± 245.6 μg/kg, p < 0.05) of high consumption, indicating risk to human health. In water, T-Hg concentrations exceeded the threshold effect value of 12 ng/L, whereas As concentrations were below the threshold of 10,000 ng/L, established by USEPA. On the contrary, 33% of the sediments exceeded the quality standard of 200 μg/kg for Hg. We found that Prochilodus magdalenae was the species with the highest susceptibility to nuclear alterations in its order, nuclear bud (CNB, 3.7 ± 5.4%), micronuclei (MN, 1.6 ± 2.5%) and binucleated cells (BC, 1.6 ± 2.3%). These results indicate that the species appears to be a good predictor of genotoxicity in the Atrato River. Fulton's condition factor (K) indicated that 31.7% of the fishes had poor growth condition, suggesting that the Atrato River basin needs to be monitored and restored in accordance with the agreements reached in the Minamata Convention on Mercury.
Collapse
Affiliation(s)
- Leonomir Córdoba-Tovar
- Pontificia Universidad Javeriana, Facultad de Estudios Ambientales y Rurales, Transversal 4#42-00, Bogotá, DC, Colombia; Environmental Toxicology and Natural Resources Group, Universidad Tecnológica del Chocó, Quibdó, Choco, A.A. 292, Colombia
| | | | - Pablo Andrés Ramos Barón
- Pontificia Universidad Javeriana, Facultad de Estudios Ambientales y Rurales, Transversal 4#42-00, Bogotá, DC, Colombia
| | - Clelia Rosa Calao-Ramos
- Universidad de Córdoba, Facultad de Ciencias de la Salud, Programa de Bacteriología, Cra 6 # 76 - 103, Montería, 230002, Córdoba, Colombia
| | - Sergi Díez
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, E-08034, Barcelona, Spain.
| |
Collapse
|
5
|
Soldi KC, Londero JEL, Schavinski CR, Schuch AP. Genotoxicity of surface waters in Brazil. MUTATION RESEARCH. GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2023; 888:503638. [PMID: 37188436 DOI: 10.1016/j.mrgentox.2023.503638] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 04/10/2023] [Accepted: 04/20/2023] [Indexed: 05/17/2023]
Abstract
Brazil has abundant surface water resources, huge aquatic biodiversity and is home to 213 million people. Genotoxicity assays are sensitive tools to detect the effects of contaminants in surface waters and wastewaters, as well as to determine potential risks of contaminated waters to aquatic organisms and human health. This work aimed to survey the articles published in 2000-2021 that evaluated the genotoxicity of surface waters within Brazilian territory to unveil the profile and trends of this topic over time. In our searches, we considered articles focused on assessing aquatic biota, articles that conducted experiments with caged organisms or standardized tests in the aquatic sites, as well as articles that transported water or sediment samples from aquatic sites to the laboratory, where exposures were performed with organisms or standardized tests. We retrieved geographical information on the aquatic sites evaluated, the genotoxicity assays used, the percentage of genotoxicity detected, and, when possible, the causative agent of aquatic pollution. A total of 248 articles were identified. There was a trend of increase in the number of publications and annual diversity of hydrographic regions evaluated over time. Most articles focused on rivers from large metropolises. A very low number of articles were conducted on coastal and marine ecosystems. Water genotoxicity was detected in most articles, regardless of methodological approach, even in little-studied hydrographic regions. The micronucleus test and the alkaline comet assay were widely applied with blood samples, mainly derived from fish. Allium and Salmonella tests were the most frequently used standard protocols. Despite most articles did not confirm polluting sources and genotoxic agents, the detection of genotoxicity provides useful information for the management of water pollution. We discuss key points to be assessed to reach a more complete picture of the genotoxicity of surface waters in Brazil.
Collapse
Affiliation(s)
- Karen Costa Soldi
- Post-Graduation Program in Animal Biodiversity, Department of Ecology and Evolution, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - James Eduardo Lago Londero
- Post-Graduation Program in Biological Sciences: Toxicological Biochemistry, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Cassiano Ricardo Schavinski
- Post-Graduation Program in Biological Sciences: Toxicological Biochemistry, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - André Passaglia Schuch
- Post-Graduation Program in Animal Biodiversity, Department of Ecology and Evolution, Federal University of Santa Maria, Santa Maria, RS, Brazil; Post-Graduation Program in Biological Sciences: Toxicological Biochemistry, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Santa Maria, RS, Brazil.
| |
Collapse
|
6
|
Camilo-Cotrim CF, de Souza Ondei L, de Almeida EA, Teresa FB. Fish biomarker responses reflect landscape anthropic disturbance in savanna streams. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:87828-87843. [PMID: 35821333 DOI: 10.1007/s11356-022-21865-9] [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: 08/10/2021] [Accepted: 07/01/2022] [Indexed: 06/15/2023]
Abstract
Disturbance in the landscape surrounding streams can interfere with water quality and cause harm to aquatic organisms. In this study, we evaluate the influence of land use on the genetic and biochemical biomarkers of fish in streams of Brazilian savanna (Cerrado). We also evaluated whether biomarker responses are seasonally consistent. For this purpose, individuals of the Neotropical tetra fish Astyanax lacustris were exposed in cages for 96 h, in 13 streams draining agroecosystems with different degrees of disturbance during the dry and wet seasons. After exposure, blood, liver, and gills were collected for multibiomarker analyses (micronuclei, erythrocytic nuclear abnormalities, lipid peroxidation, antioxidant enzymes, and biotransformation enzyme). The results showed that the gradient of anthropic disturbance was positively associated with genotoxic damage (erythrocytic nuclear abnormalities) and negatively associated with antioxidant and biotransformation enzymes of the liver in both seasons. No association of the gradient of anthropic disturbance with the frequency of micronuclei and for most gill enzymes was found for both seasons. Landscape disturbance was also negatively associated with water quality in the wet season. These results indicate that changes in land use interfere with the genetic and biochemical processes of organisms. Thus, the multibiomarker approach may represent an effective strategy for assessing and monitoring terrestrial landscape disturbance.
Collapse
Affiliation(s)
- Carlos Filipe Camilo-Cotrim
- Laboratório de Biogeografia e Ecologia Aquática, Universidade Estadual de Goiás, Câmpus Central ‑ Sede Anápolis ‑ Ciências Exatas e tecnológicas, 459, Br 153, nº 3.105, Anápolis, Goiás, Brasil.
| | - Luciana de Souza Ondei
- Laboratório de Biogeografia e Ecologia Aquática, Universidade Estadual de Goiás, Câmpus Central ‑ Sede Anápolis ‑ Ciências Exatas e tecnológicas, 459, Br 153, nº 3.105, Anápolis, Goiás, Brasil
| | - Eduardo Alves de Almeida
- Departamento de Ciências Naturais, Fundação Universidade Regional de Blumenau, FURB, Blumenau, Santa Catarina, Brasil
| | - Fabrício Barreto Teresa
- Laboratório de Biogeografia e Ecologia Aquática, Universidade Estadual de Goiás, Câmpus Central ‑ Sede Anápolis ‑ Ciências Exatas e tecnológicas, 459, Br 153, nº 3.105, Anápolis, Goiás, Brasil
| |
Collapse
|
7
|
Beghin M, Paris-Palacios S, Mandiki SNM, Schmitz M, Palluel O, Gillet E, Bonnard I, Nott K, Robert C, Porcher JM, Ronkart S, Kestemont P. Integrative multi-biomarker approach on caged rainbow trout: A biomonitoring tool for wastewater treatment plant effluents toxicity assessment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 838:155912. [PMID: 35588819 DOI: 10.1016/j.scitotenv.2022.155912] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 04/29/2022] [Accepted: 05/09/2022] [Indexed: 06/15/2023]
Abstract
The complex mixtures of contaminants released in wastewater treatment plant (WWTP) effluents are a major source of pollution for aquatic ecosystems. The present work aimed to assess the environmental risk posed by WWTP effluents by applying a multi-biomarker approach on caged rainbow trout (Oncorhynchus mykiss) juveniles. Fish were caged upstream and downstream of a WWTP for 21 days. To evaluate fish health, biomarkers representing immune, reproductive, nervous, detoxification, and antioxidant functions were assayed. Biomarker responses were then synthesized using an Integrated Biomarker Response (IBR) index. The IBR highlighted similar response patterns for the upstream and downstream sites. Caged juvenile females showed increased activities of innate immune parameters (lysozyme and complement), histological lesions and reduced glycogen content in the hepatic tissue, and higher muscle cholinergic metabolism. However, the intensity of the observed effects was more severe downstream of the WWTP. The present results suggest that the constitutive pollution level of the Meuse River measured upstream from the studied WWTP can have deleterious effects on fish health condition, which are exacerbated by the exposure to WWTP effluents. Our results infer that the application of IBR index is a promising tool to apply with active biomonitoring approaches as it provides comprehensive information about the biological effects caused by point source pollution such as WWTP, but also by the constitutive pollutions levels encountered in the receiving environment.
Collapse
Affiliation(s)
- Mahaut Beghin
- Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life Earth and Environment, University of Namur, 61 Rue de Bruxelles, B-5000 Namur, Belgium.
| | - Séverine Paris-Palacios
- Université de Reims Champagne-Ardennes, Research unity "Stress Environnementaux et BIOsurveillance des milieux aquatiques" (SEBIO), Campus du Moulin de la Housse, BP 1039, 51687 Reims cedex 2, France
| | - Syaghalirwa N M Mandiki
- Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life Earth and Environment, University of Namur, 61 Rue de Bruxelles, B-5000 Namur, Belgium
| | - Mélodie Schmitz
- Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life Earth and Environment, University of Namur, 61 Rue de Bruxelles, B-5000 Namur, Belgium
| | - Olivier Palluel
- Institut national de l'environnement industriel et des risques (INERIS), URM-I-02 SEBIO, BP n°2, 60550 Verneuil en Halatte, France
| | - Erin Gillet
- La Société wallonne des eaux, 41 Rue de la Concorde, B-4800 Verviers, Belgium
| | - Isabelle Bonnard
- Université de Reims Champagne-Ardennes, Research unity "Stress Environnementaux et BIOsurveillance des milieux aquatiques" (SEBIO), Campus du Moulin de la Housse, BP 1039, 51687 Reims cedex 2, France
| | - Katherine Nott
- La Société wallonne des eaux, 41 Rue de la Concorde, B-4800 Verviers, Belgium
| | - Christelle Robert
- Centre d'Economie Rurale, Health Department, 8 Rue Point du Jour, B-6900 Marloie, Belgium
| | - Jean-Marc Porcher
- Institut national de l'environnement industriel et des risques (INERIS), URM-I-02 SEBIO, BP n°2, 60550 Verneuil en Halatte, France
| | - Sébastien Ronkart
- La Société wallonne des eaux, 41 Rue de la Concorde, B-4800 Verviers, Belgium
| | - Patrick Kestemont
- Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life Earth and Environment, University of Namur, 61 Rue de Bruxelles, B-5000 Namur, Belgium
| |
Collapse
|
8
|
Moi DA, Teixeira-de-Mello F. Cascading impacts of urbanization on multitrophic richness and biomass stock in neotropical streams. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:151398. [PMID: 34742800 DOI: 10.1016/j.scitotenv.2021.151398] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 10/18/2021] [Accepted: 10/30/2021] [Indexed: 06/13/2023]
Abstract
The conversion of natural streams to urbanized systems with the intention of supplying the cities' water demand causes species loss across many trophic groups, with negative consequences for ecosystem functioning. High levels of watershed urbanization cause environmental changes through water quality deterioration and loss of habitat heterogeneity. However, it remains unclear how environmental changes resulting from urbanization affect the diversity of multiple trophic groups and ecosystem functions, such as biomass stock in streams. Here, using a dataset from Neotropical streams, we investigate the cascading effects of urbanization (via impoverishment of water quality and habitat heterogeneity) on richness of multiple trophic groups of fish, and their consequences to biomass stock of streams. The increase in urbanization decreased the richness and standing biomass of carnivores, omnivores, and detritivores across streams. Urbanization also decreased habitat heterogeneity and water quality, which driver a huge cascading decrease in the richness of carnivores, omnivores, and detritivores, and ultimately reduced the whole-community standing biomass. Our analysis revealed that urbanization expansion induces a cascading reduction of multitrophic diversity and standing biomass in Neotropical streams. Therefore, the predicted increase in urbanization in the coming decades should impacts the richness of multiple trophic levels, with potential negative consequences to ecosystem functioning of streams.
Collapse
Affiliation(s)
- Dieison André Moi
- Department of Biology, Graduate Program in Ecology of Inland Waters, Nupelia, University of Maringá, Av. Colombo 5790, Bloco H90, Jd. Universitário, Maringá, PR 87020-900, Brazil.
| | - Franco Teixeira-de-Mello
- Departamento de Ecología y Gestión Ambiental CURE, Universidad de la República, Tacuarembó s/n, Maldonado, Uruguay.
| |
Collapse
|
9
|
Canedo A, de Jesus LWO, Bailão EFLC, Rocha TL. Micronucleus test and nuclear abnormality assay in zebrafish (Danio rerio): Past, present, and future trends. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 290:118019. [PMID: 34670334 DOI: 10.1016/j.envpol.2021.118019] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 08/05/2021] [Accepted: 08/19/2021] [Indexed: 06/13/2023]
Abstract
Nuclear abnormality (NA) assay in fish has been widely applied for toxicity risk assessment under field and laboratory conditions. The zebrafish (Danio rerio) has become a suitable model system for assessing the NA induced by pollutants. Thus, the current study aimed to summarize and discuss the literature concerning micronucleus (MN) and other NA in zebrafish and its applications in toxicity screening and environmental risk assessment. The data concerning the publication year, pollutant type, experimental design, and type of NA induced by pollutants were summarized. Also, molecular mechanisms that cause NA in zebrafish were discussed. Revised data showed that the MN test in zebrafish has been applied since 1996. The MN was the most frequently NA, but 15 other nuclear alterations were reported in zebrafish, such as notched nuclei, blebbed nuclei, binucleated cell, buds, lobed nuclei, bridges, and kidney-shaped. Several pollutants can induce NA in zebrafish, mainly effluents (mixture of pollutants), agrochemicals, and microplastics. The pollutant-induced NA in zebrafish depends on experimental design (i.e., exposure time, concentration, and exposure condition), developmental stages, cell/tissue type, and the type of pollutant. Besides, research gaps and recommendations for future studies are indicated. Overall, the current study showed that zebrafish is a suitable model to assess pollutant-induced mutagenicity.
Collapse
Affiliation(s)
- Aryelle Canedo
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiania, Goiás, Brazil
| | - Lázaro Wender Oliveira de Jesus
- Laboratory of Applied Animal Morphophysiology, Institute of Biological Sciences and Health, Federal University of Alagoas, Maceió, Alagoas, Brazil
| | | | - Thiago Lopes Rocha
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiania, Goiás, Brazil.
| |
Collapse
|