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Romero-Murillo P, Gallego JL, Leignel V. Marine Pollution and Advances in Biomonitoring in Cartagena Bay in the Colombian Caribbean. TOXICS 2023; 11:631. [PMID: 37505596 PMCID: PMC10385514 DOI: 10.3390/toxics11070631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 07/13/2023] [Accepted: 07/16/2023] [Indexed: 07/29/2023]
Abstract
Coastal zones sustain extensive biodiversity, support key processes for ocean dynamics, and influence the balance of the global environment. They also provide resources and services to communities, determine their culture, and are the basis for their economic growth. Cartagena Bay in the Colombian Caribbean is the place of the establishment of one of the country's main cities, which has a great historical and tourist attraction, and it is also the location of the main commercial port and a great variety of industries. Historically, it has been affected by several environmental impacts and intense pollution. This situation has gained the attention of different researchers, so herein is presented a literature review with a systematic approach using RStudio's bibliometrix on the presence of pollutants and the impact on biodiversity in recent decades, providing a critical analysis of the state of Cartagena Bay and its future needs to ensure its recovery and conservation. In addition, the socioeconomic dynamics related to the environmental state of Cartagena Bay are presented from the framework drivers, pressures, status, impacts, and responses (DPSIR). The update and critical understanding of the sources, fate, and effects of pollution are important not only for the knowledge of the status of this singular ecosystem but also to encourage future research and entrench evidence to support decision makers' actions. This review highlights that several pollutants that have been detected exceeding sediment quality guidelines, like As, Cd, Hg, and PAH, are also reported to bioaccumulate and cause damage throughout the trophic levels of the coastal environment. In addition, the potential use of sentinel species and biomarkers for their monitoring is discussed. Finally, the factors that cause pollution and threaten the state of the bay continue to exert pressure and impact; thus, there is a call for the further monitoring of this ecosystem and the strengthening of policies and regulations.
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Affiliation(s)
- Patricia Romero-Murillo
- Escuela de Biología Marina, Grupo de Investigación GIBEAM, Universidad del Sinú Seccional Cartagena, Av. El Bosque Trans, 54 N° 30-453 Santillana, Cartagena de Indias 130014, Colombia
| | - Jorge L Gallego
- Grupo de Investigaciones y Mediciones Ambientales GEMA, Facultad de Ingenierías, Universidad de Medellín, Carrera 87 N° 30-65, Medellín 050026, Colombia
| | - Vincent Leignel
- Laboratoire BIOSSE, Le Mans Université, Avenue O Messiaen, 72000 Le Mans, France
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Silva LR, Monteiro VMDS, Paiva IA, Mendes JS, Jesus GDSD, Silva MVRD, Bezerra DC, Carreiro CRP, Ribeiro LSDS, Coimbra VCS, Bezerra NPC. Endoparasite diversity and liver alterations in Hoplerythrinus unitaeniatus and Cichlasoma bimaculatum in a quilombola area in Maranhão, Brazil. REVISTA BRASILEIRA DE PARASITOLOGIA VETERINARIA = BRAZILIAN JOURNAL OF VETERINARY PARASITOLOGY : ORGAO OFICIAL DO COLEGIO BRASILEIRO DE PARASITOLOGIA VETERINARIA 2022; 31:e000922. [PMID: 35476008 DOI: 10.1590/s1984-29612022022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 03/15/2022] [Indexed: 06/14/2023]
Abstract
Our aim was to assess endoparasite diversity and liver alterations in Hoplerythrinus unitaeniatus (jeju) and Cichlasoma bimaculatum (acará preto) in a quilombola area in Maranhão, Brazil. For this, 21 H. unitaeniatus and 21 C. bimaculatum were caught in a natural environment and transported to a laboratory. After these had been euthanized, endoparasites were collected and identified. Liver alterations were evaluated histological analysis based on the severity of each lesion: stage I, organ functioning not compromised; stage II, more severe lesions that impair normal functioning of the organs; and stage III, very severe and irreversible lesions. Among the fish evaluated, 71.43% H. unitaeniatus and 61.90% C. bimaculatum were parasitized. Contracaecum sp. was found in both species; while acanthocephalans, only in H. unitaeniatus. The alterations were vacuolization, nucleus in the cell periphery, deformation of the cell outline, melanomacrophage center, hyperemia, cytoplasmic degeneration and nuclear vacuolization. Through calculating a histological alteration index, it was found that 26.19% of the specimens presented lesions in stage I; 38.09% lesions in stage II and 9.52% lesions in stage III. It was concluded that there is high prevalence of Contracaecum sp. and that the liver lesions may be adaptive responses by the fish to endoparasitic infection.
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Affiliation(s)
- Ladilson Rodrigues Silva
- Programa de Pós-graduação Acadêmico em Ecologia e Conservação da Biodiversidade, Centro de Educação, Ciências Exatas e Naturais, Universidade Estadual do Maranhão - UEMA, São Luís, MA, Brasil
| | - Vitorya Mendes da Silva Monteiro
- Curso de Graduação em Ciências Biológicas, Centro de Educação, Ciências Exatas e Naturais, Universidade Estadual do Maranhão - UEMA, São Luís, MA, Brasil
| | - Izabela Alves Paiva
- Programa de Pós-graduação Acadêmico em Ecologia e Conservação da Biodiversidade, Centro de Educação, Ciências Exatas e Naturais, Universidade Estadual do Maranhão - UEMA, São Luís, MA, Brasil
| | - Juliany Silva Mendes
- Programa de Pós-graduação Acadêmico em Ecologia e Conservação da Biodiversidade, Centro de Educação, Ciências Exatas e Naturais, Universidade Estadual do Maranhão - UEMA, São Luís, MA, Brasil
| | - Greiciene Dos Santos de Jesus
- Programa de Pós-graduação Acadêmico em Ecologia e Conservação da Biodiversidade, Centro de Educação, Ciências Exatas e Naturais, Universidade Estadual do Maranhão - UEMA, São Luís, MA, Brasil
| | - Marcelo Victor Rodrigues da Silva
- Curso de Graduação em Engenharia de Pesca, Centro de Ciências Agrárias, Universidade Estadual do Maranhão - UEMA, São Luís, MA, Brasil
| | - Danilo Cutrim Bezerra
- Curso de Graduação em Zootecnia, Centro de Ciências Agrárias, Universidade Estadual do Maranhão - UEMA, São Luís, MA, Brasil
| | - Carlos Riedel Porto Carreiro
- Curso de Graduação em Engenharia de Pesca, Centro de Ciências Agrárias, Universidade Estadual do Maranhão - UEMA, São Luís, MA, Brasil
| | - Larissa Sarmento Dos Santos Ribeiro
- Programa de Pós-graduação Profissional em Defesa Sanitária Animal, Centro de Ciências Agrárias, Universidade Estadual do Maranhão - UEMA, São Luís, MA, Brasil
| | - Viviane Correa Silva Coimbra
- Programa de Pós-graduação Profissional em Defesa Sanitária Animal, Centro de Ciências Agrárias, Universidade Estadual do Maranhão - UEMA, São Luís, MA, Brasil
| | - Nancyleni Pinto Chaves Bezerra
- Programa de Pós-graduação Acadêmico em Ecologia e Conservação da Biodiversidade, Centro de Educação, Ciências Exatas e Naturais, Universidade Estadual do Maranhão - UEMA, São Luís, MA, Brasil
- Curso de Graduação em Engenharia de Pesca, Centro de Ciências Agrárias, Universidade Estadual do Maranhão - UEMA, São Luís, MA, Brasil
- Curso de Graduação em Zootecnia, Centro de Ciências Agrárias, Universidade Estadual do Maranhão - UEMA, São Luís, MA, Brasil
- Programa de Pós-graduação Profissional em Defesa Sanitária Animal, Centro de Ciências Agrárias, Universidade Estadual do Maranhão - UEMA, São Luís, MA, Brasil
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Manjarres-Suarez A, de la Rosa J, Gonzalez-Montes A, Galvis-Ballesteros J, Olivero-Verbel J. Trace elements, peripheral blood film, and gene expression status in adolescents living near an industrial area in the Colombian Caribbean Coastline. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2022; 32:146-155. [PMID: 34083740 DOI: 10.1038/s41370-021-00340-6] [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: 09/29/2020] [Revised: 04/28/2021] [Accepted: 04/29/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Trace elements comprise both nutritionally essential and non-essential, and their presence in organisms plays important role in human health. OBJECTIVE The aim of this study was to evaluate the levels of trace elements, together with cellular and molecular biomarkers, in adolescents from Tierrabomba Island, a Caribbean community located near an industrial area, comparing them with a group living in San Onofre, a reference community. METHODS Hair and blood samples were obtained from 238 individuals aged 11-18 years old, 131 from Tierrabomba Island and 107 from San Onofre. Trace elements were quantified in hair using ICP-MS. The hematological evaluation was done by peripheral blood smears, and gene expression analysis was carried out through RT-PCR. RESULTS Thirteen elements were analyzed; eight showed significant differences between sites. In Tierrabomba, arsenic (As) and tungsten (W) registered mean values greater than in San Onofre. In contrast, in the reference site, average values for boron (B), cobalt (Co), zinc (Zn), yttrium (Y), tin (Sn), and barium (Ba) were greater. The peripheral blood film showed differences between populations. Mean lymphocyte percentage was higher in the Island, while eosinophil and monocyte percentages displayed greater means in San Onofre. Some correlations between trace elements and hematological parameters were found, mainly with platelets in Tierrabomba. This trend remained even when partial correlation coefficients were adjusted for age. Levels of gene expression of metallothionein 1X (MT1X) and superoxide dismutase (SOD) registered significant differences between sites, being greater in Tierrabomba. Negative correlations between SOD and As were observed in both sampling sites. Discriminant analysis suggested sampling locations could be differentiated by Zn, Mo, Ba, and MT1X levels. SIGNIFICANCE Trace elements and the relative gene expression associated with metal exposure are critical exposure biomarkers for coastal communities.
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Affiliation(s)
- Alejandra Manjarres-Suarez
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, Cartagena, 130014, Colombia
| | - Jesus de la Rosa
- Associate Unit CSIC - University of Huelva "Atmospheric Pollution," Center for Research in Sustainable Chemistry [CIQSO], University of Huelva, Huelva, Spain
| | - Audreis Gonzalez-Montes
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, Cartagena, 130014, Colombia
| | - Javier Galvis-Ballesteros
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, Cartagena, 130014, Colombia
| | - Jesus Olivero-Verbel
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, Cartagena, 130014, Colombia.
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Caballero-Gallardo K, Olivero-Verbel J, Corada-Fernández C, Lara-Martín PA, Juan-García A. Emerging contaminants and priority substances in marine sediments from Cartagena Bay and the Grand Marsh of Santa Marta (Ramsar site), Colombia. ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 193:596. [PMID: 34426877 PMCID: PMC8382562 DOI: 10.1007/s10661-021-09392-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 08/10/2021] [Indexed: 05/18/2023]
Abstract
Emerging pollutants and priority substances are of growing concern due to their toxicity potential to aquatic organisms and human health. However, few reports on this issue in marine ecosystems in general and, more specifically, on the Colombian Caribbean coast are available. The aim of this study was to detect these compounds in sediments from Cartagena Bay (CB) and in the Grand Marsh of Santa Marta, GMSM (Ramsar site), in order to determine how they related to in vitro cytotoxicity assays on HepG2 cells of sediment extracts. A total of thirty compounds were detected using GC-MS/MS in fifteen stations during both the rainy and the dry seasons. Sediments from CB had a wide range of different toxicants, with polycyclic aromatic hydrocarbons (PAHs) being the most prevalent (12 PAHs, 5.5-881.6 ng/g). Total PCBs ranged from < LOD to 18.6 ng/g, with PCB 138 being the most common detected congener. Residues of p,p'-DDE, Chlorpyrifos and two organophosphate flame retardants, TEHP and ToTP, were found in most sampling locations. The UV filters 4MBC and homosalate were recurrently found in sediments, and the fragrance galaxolide appeared in all cases, with the greatest concentrations found on a touristic beach. In GMSM, with the exception of deltamethrin, all chemicals evaluated had lower average values than in CB. According to sediment quality guidelines, some sites in CB presented values of PAHs higher than the threshold effects level, while in the marsh, none of the stations exceeded it. HepG2 cells exposed to 1% sediment extracts presented reduced cell viability up to 26%. Cytotoxicity displayed a negative correlation with chlorpyrifos concentration. In short, these data suggest the bay and the marsh have specific contamination fingerprints related to anthropogenic interventions. This research highlights the need to further investigate the ecotoxicological implications of detected chemical stressors in these ecosystems.
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Affiliation(s)
- Karina Caballero-Gallardo
- Environmental and Computational Chemistry Group. School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, 130014, Cartagena, Colombia.
- Functional Toxicology Group. School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, 130014, Cartagena, Colombia.
| | - Jesus Olivero-Verbel
- Environmental and Computational Chemistry Group. School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, 130014, Cartagena, Colombia
| | - Carmen Corada-Fernández
- Campus of International Excellence of the Sea (CEI·MAR), Marine Research Institute (INMAR), University of Cadiz, 11510, Cadiz, Spain
| | - Pablo A Lara-Martín
- Campus of International Excellence of the Sea (CEI·MAR), Marine Research Institute (INMAR), University of Cadiz, 11510, Cadiz, Spain
| | - Ana Juan-García
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy, University of Valencia, Av. Vicent Andrés Estellés s/n, 46100, BurjassotValència, Spain
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Duarte-Restrepo E, Noguera-Oviedo K, Butryn D, Wallace JS, Aga DS, Jaramillo-Colorado BE. Spatial distribution of pesticides, organochlorine compounds, PBDEs, and metals in surface marine sediments from Cartagena Bay, Colombia. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:14632-14653. [PMID: 33216302 DOI: 10.1007/s11356-020-11504-6] [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: 04/29/2020] [Accepted: 11/02/2020] [Indexed: 05/12/2023]
Abstract
Cartagena Bay is an estuarine system located in the Caribbean Sea (Colombia, South America), that receives fresh water from Canal del Dique, which is connected to the Magdalena River, the most important river of Colombia, with some of the most prominent Colombian cities located in its watershed, which has a high sediment yield. An analysis of persistent organic pollutants and heavy metals was carried out on marine sediments from Cartagena Bay. Cartagena Bay sediments deployed the occurrence of total levels of pesticides (thiocarbamates, bromacil, triazines, organochlorines, and organophosphorus), polybrominated diphenyl ethers (PBDEs), and polychlorinated biphenyls (PCBs), in sediments ranging from 0.83-33.67 ng/g dry-weight, 0.05-0.34 ng/g dry-weight, and 0.06-19.58 ng/g dry-weight, respectively. Their concentrations were lower than those reported in NOAA Screening Quick Reference Tables. DDTs and PCBs are banned organochlorine compounds, since, even at low levels, their presence in sediments represents a threat to aquatic organisms and, therefore, to human health through the trophic chain. Sediments showed high concentrations of strontium (50-959.6 mg/kg). All metals evaluated in the marine sediments were found in the S6 sampling point; this was near tannery and hydrocarbon industries (Pb 37.1 mg/kg, Cr 137.2 mg/kg, Cd 1.7 mg/kg, Cu 64.4 mg/kg, As 13.1 mg/kg, Sr 318.9 mg/kg); these results exceeded the accepted values of threshold effect levels (TEL) used as an indicator of their potential risk on marine life.
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Affiliation(s)
- Edisson Duarte-Restrepo
- Agrochemical Research Group, Chemistry Program, Faculty of Exact and Natural Sciences, University of Cartagena, Cartagena, Colombia
- Doctoral Program in Environmental Toxicology, Pharmaceutical Sciences Faculty, University of Cartagena, Cartagena, Bolivar, Colombia
| | - Katia Noguera-Oviedo
- Chemistry Department, University at Buffalo, The State University of New York, 611 Natural Science Complex, Buffalo, NY, 14260, USA
| | - Deena Butryn
- Chemistry Department, University at Buffalo, The State University of New York, 611 Natural Science Complex, Buffalo, NY, 14260, USA
| | - Joshua S Wallace
- Chemistry Department, University at Buffalo, The State University of New York, 611 Natural Science Complex, Buffalo, NY, 14260, USA
| | - Diana S Aga
- Chemistry Department, University at Buffalo, The State University of New York, 611 Natural Science Complex, Buffalo, NY, 14260, USA.
| | - Beatriz E Jaramillo-Colorado
- Agrochemical Research Group, Chemistry Program, Faculty of Exact and Natural Sciences, University of Cartagena, Cartagena, Colombia.
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Monnolo A, Clausi MT, Mercogliano R, Fusco G, Fiorentino ML, Buono F, Lama A, Ferrante MC. Levels of polychlorinated biphenyls and organochlorine pesticides in donkey milk: Correlation with the infection level by intestinal strongyles. CHEMOSPHERE 2020; 258:127287. [PMID: 32535446 DOI: 10.1016/j.chemosphere.2020.127287] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/29/2020] [Accepted: 05/31/2020] [Indexed: 06/11/2023]
Abstract
AIM The study aimed at evaluating the concentration levels of organochlorine pollutants in donkey milk and their modulation on the intestinal strongyle infection. Risk evaluation for consumer health was also investigated. METHODS We analyzed milk of grazing donkeys living in areas of Southern of Italy affected by organochlorine compounds environmental pollution and parasite infection. The presence of pollutants was assessed through summary statistics; regression analysis of intestinal strongyle on pollutant concentration was performed to investigate the relationship between the two variables. RESULTS PCB concentrations (mainly non-dioxin-like (ndl)-PCBs) were higher than OCP ones. Mean values of ndl-PCBs across areas ranged from 93.13 to 263.64 ng g-1. In all sample units we detected the six indicator PCBs with the prevalence of the PCB 153, followed by the PCB 28 and the PCB 101. Among the dioxin-like (dl)-PCBs, non-ortho PCB 169, 77 and 126 were assessed in some milk samples; in all areas we detected the mono-ortho PCB 118 and PCB 105. Positive correlation between infection level and six indicator PCBs as well as between the former and HCB, on WW and LW, were observed (at least statistically significant at 5 percent). In some cases, Dl-PCB concentrations emerged as dangerous given the EU maximum residue limit for PCDD/Fs and dl-PCBs. CONCLUSION Evidence supports the hypothesis of an immunosuppressive role of organochlorine pollutants; risk evaluation reveals the potential health impact of dl-PCB intake, particularly for major donkey milk consumers such as infants, children with cow milk and multiple food intolerance, and elders.
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Affiliation(s)
- A Monnolo
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Naples, Italy
| | - M T Clausi
- Experimental Zooprophylactic Institute of Southern Italy, Portici, Naples, Italy
| | - R Mercogliano
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Naples, Italy
| | - G Fusco
- Experimental Zooprophylactic Institute of Southern Italy, Portici, Naples, Italy
| | - M L Fiorentino
- Environmental Research Center, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - F Buono
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Naples, Italy
| | - A Lama
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - M C Ferrante
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Naples, Italy.
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Bertel-Sevilla A, Alzate JF, Olivero-Verbel J. De novo assembly and characterization of the liver transcriptome of Mugil incilis (lisa) using next generation sequencing. Sci Rep 2020; 10:13957. [PMID: 32811897 PMCID: PMC7435268 DOI: 10.1038/s41598-020-70902-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 07/24/2020] [Indexed: 11/08/2022] Open
Abstract
Mugil incilis (lisa) is an important commercial fish species in many countries, living along the coasts of the western Atlantic Ocean. It has been used as a model organism for environmental monitoring and ecotoxicological investigations. Nevertheless, available genomic and transcriptomic information for this organism is extremely deficient. The aim of this study was to characterize M. incilis hepatic transcriptome using Illumina paired-end sequencing. A total of 32,082,124 RNA-Seq read pairs were generated utilizing the HiSeq platform and subsequently cleaned and assembled into 93,912 contigs (N50 = 2,019 bp). The analysis of species distribution revealed that M. incilis contigs had the highest number of hits to Stegastes partitus (13.4%). Using a sequence similarity search against the public databases GO and KEGG, a total of 7,301 and 16,967 contigs were annotated, respectively. KEGG database showed genes related to environmental information, metabolism and organismal system pathways were highly annotated. Complete or partial coding DNA sequences for several candidate genes associated with stress responses/detoxification of xenobiotics, as well as housekeeping genes, were employed to design primers that were successfully tested and validated by RT-qPCR. This study presents the first transcriptome resources for Mugil incilis and provides basic information for the development of genomic tools, such as the identification of RNA markers, useful to analyze environmental impacts on this fish Caribbean species.
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Affiliation(s)
- Angela Bertel-Sevilla
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, 130015, Cartagena, Colombia
| | - Juan F Alzate
- Centro Nacional de Secuenciación Genómica-CNSG, Sede de Investigación Universitaria-SIU, Universidad de Antioquia, Medellín, Colombia
| | - Jesus Olivero-Verbel
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, 130015, Cartagena, Colombia.
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Manjarres-Suarez A, Olivero-Verbel J. Hematological parameters and hair mercury levels in adolescents from the Colombian Caribbean. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:14216-14227. [PMID: 32043249 DOI: 10.1007/s11356-020-07738-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 01/14/2020] [Indexed: 06/10/2023]
Abstract
Mercury (Hg) is one of the heavy metals of concern for fish-eating populations. This pollutant can be released from many sources and generates diverse toxic effects in humans. The aim of this study was to evaluate hematological parameters and their relationship with total Hg (T-Hg) levels in the hair of adolescents from Tierrabomba, an island close to an industrialized area, and also from San Onofre, a reference site. Blood and hair samples were collected from 194 individuals, aged 11-18 years old, as well as sociodemographic and dietary information. The hematological profile showed marked differences between the two sites. Mean values for almost all variables of the red blood cell line, as well as lymphocyte percentage (LYM%) and monocyte percentage (MID%), were greater in Tierrabomba. In contrast, red cell distribution width (RDW), white blood cells (WBC), granulocyte percentage (GRA%), and plateletcrit (PTC) were higher at the reference site. Total Hg mean in Tierrabomba was 1.10 ± 0.07 μg/g, while at San Onofre, it was 1.87 ± 0.11 μg/g. In both places, more than 49% of participants had Hg concentrations over the limit threshold (1 μg/g). Overall mean corpuscular hemoglobin concentration (MCHC) and T-Hg showed a negative correlation (r = - 0.162, p = 0.024). However, positive associations were observed between T-Hg and MID% for Tierrabomba (r = 0.193, p = 0.041), and between T-Hg and mixed cells (MID) for the reference site (r = 0.223, p = 0.044). A significant relationship was found for fish consumption frequency and T-Hg levels (r = 0.360, p < 0.001). These results indicate blood parameters may be affected by Hg even at low-level exposure.
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Affiliation(s)
- Alejandra Manjarres-Suarez
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, Cartagena, 130015, Colombia
| | - Jesus Olivero-Verbel
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, Cartagena, 130015, Colombia.
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Tosic M, Martins F, Lonin S, Izquierdo A, Restrepo JD. Hydrodynamic modelling of a polluted tropical bay: Assessment of anthropogenic impacts on freshwater runoff and estuarine water renewal. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 236:695-714. [PMID: 30772727 DOI: 10.1016/j.jenvman.2019.01.104] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 12/08/2018] [Accepted: 01/26/2019] [Indexed: 06/09/2023]
Abstract
A bay's capacity to buffer fluvial fluxes between the land and sea is sensitive to hydrological changes that can affect its water renewal rates. In Cartagena Bay, Colombia, pollution issues have been associated with freshwater fluxes which are projected to increase in future years. This has led to plans to reduce freshwater flows by constructing upstream hydraulic doors. Given the influence of freshwater discharge on coastal water renewal, it is important to assess how these upstream changes will affect the bay's hydrodynamic processes. This study calibrated the 3D MOHID Water model, configured with a high-resolution mixed vertical discretization to capture the bay's characteristic processes of vertical stratification and mixing. A Lagrangian transport model was used to analyze the flow of passive particle tracers and calculate water renewal time scales. Mean residence times of 3-6 days and flushing times of 10-20 days for canal water were found, while mean residence times of 23-33 days and flushing times of 70-99 days were calculated for the bay's complete water volume. An assessment of future scenarios showed that increases in freshwater runoff would result in faster water renewal in the bay, while plans to decrease freshwater discharge would result in slower water renewal in the bay. It is therefore imperative that any plans for reducing fluvial fluxes into the bay be accompanied by the control of local pollution sources, which are abundant and could worsen the bay's water quality issues should water renewal times become longer.
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Affiliation(s)
- Marko Tosic
- University of Cádiz, Faculty of Marine and Environmental Sciences, Applied Physics Department, 11510, Puerto Real, Cádiz, Spain; Instituto Superior de Engenharia, Universidade do Algarve, Campus da Penha, 8000, Faro, Portugal; Universidad EAFIT, School of Sciences, Department of Earth Sciences, Carrera 49 #7S-50, A.A.3300, Medellín, Colombia.
| | - Flávio Martins
- Instituto Superior de Engenharia, Universidade do Algarve, Campus da Penha, 8000, Faro, Portugal
| | - Serguei Lonin
- Escuela Naval de Cadetes "Almirante Padilla", Isla Naval Manzanillo, Cartagena de Indias, Colombia
| | - Alfredo Izquierdo
- University of Cádiz, Faculty of Marine and Environmental Sciences, Applied Physics Department, 11510, Puerto Real, Cádiz, Spain
| | - Juan Darío Restrepo
- Universidad EAFIT, School of Sciences, Department of Earth Sciences, Carrera 49 #7S-50, A.A.3300, Medellín, Colombia
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