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Bitencourt JAP, Chequer LPT, Waite CC, Oliveira G, Oliveira AMS, Pereira DC, Crapez MAC. Biomass and enzymatic activities of marine bacteria in the presence of multiple metals. Braz J Microbiol 2023; 54:1523-1532. [PMID: 37212983 PMCID: PMC10485232 DOI: 10.1007/s42770-023-00993-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 04/25/2023] [Indexed: 05/23/2023] Open
Abstract
Marine environments are a repository for metals, and humans have enhanced this phenomenon over the years. Heavy metals are notoriously toxic due to their ability to biomagnify in the food chain and interact with cellular components. Nevertheless, some bacteria have physiological mechanisms that enable them to survive in impacted environments. This characteristic makes them important as biotechnological tools for environmental remediation. Thus, we isolated a bacterial consortium in Guanabara Bay (Brazil), a place with a long metal pollution history. To test the growth efficiency of this consortium in Cu-Zn-Pb-Ni-Cd medium, we measured the activity of key enzymes of microbial activity (esterases and dehydrogenase) under acidic (4.0) and neutral pH conditions, as well as the number of living cells, biopolymer production, and changes in microbial composition during metal exposure. Additionally, we calculated the predicted physiology based on microbial taxonomy. During the assay, a slight modification in bacterial composition was observed, with low abundance changes and little production of carbohydrates. Oceanobacillus chironomi, Halolactibacillus miurensis, and Alkaliphilus oremlandii were predominant in pH 7, despite O. chironomi and Tissierella creatinophila in pH 4, and T. creatinophila in Cu-Zn-Pb-Ni-Cd treatment. The metabolism represented by esterases and dehydrogenase enzymes suggested bacterial investment in esterases to capture nutrients and meet the energy demand in an environment with metal stress. Their metabolism potentially shifted to chemoheterotrophy and recycling nitrogenous compounds. Moreover, concomitantly, bacteria produced more lipids and proteins, suggesting extracellular polymeric substance production and growth in a metal-stressed environment. The isolated consortium showed promise for bioremediation of multimetal contamination and could be a valuable tool in future bioremediation programs.
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Affiliation(s)
| | - L P T Chequer
- Departamento de Biologia Marinha, Programa de Pós-Graduação Em Biologia Marinha E Ambientes Costeiros, Universidade Federal Fluminense, Niterói, RJ, CEP 24020-150, Brazil
| | - C C Waite
- Departamento de Biologia Marinha, Programa de Pós-Graduação Em Biologia Marinha E Ambientes Costeiros, Universidade Federal Fluminense, Niterói, RJ, CEP 24020-150, Brazil
| | - G Oliveira
- Departamento de Biologia Marinha, Programa de Pós-Graduação Em Biologia Marinha E Ambientes Costeiros, Universidade Federal Fluminense, Niterói, RJ, CEP 24020-150, Brazil
- School of Earth and Environmental Sciences, University of Queensland, St. Lucia, Brisbane, QLD, 4072, Australia
| | - A M S Oliveira
- Instituto Tecnológico Vale, Belém, PA, CEP 66055-090, Brazil
| | - D C Pereira
- Departamento de Biologia Marinha, Programa de Pós-Graduação Em Biologia Marinha E Ambientes Costeiros, Universidade Federal Fluminense, Niterói, RJ, CEP 24020-150, Brazil
| | - M A C Crapez
- Departamento de Biologia Marinha, Programa de Pós-Graduação Em Biologia Marinha E Ambientes Costeiros, Universidade Federal Fluminense, Niterói, RJ, CEP 24020-150, Brazil
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Vieira KS, Delgado JF, Lima LS, Souza PF, Crapez MAC, Correa TR, Aguiar VMC, Baptista Neto JA, Fonseca EM. Human health risk assessment associated with the consumption of mussels (Perna perna) and oysters (Crassostrea rhizophorae) contaminated with metals and arsenic in the estuarine channel of Vitória Bay (ES), Southeast Brazil. Mar Pollut Bull 2021; 172:112877. [PMID: 34428624 DOI: 10.1016/j.marpolbul.2021.112877] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 08/13/2021] [Accepted: 08/15/2021] [Indexed: 06/13/2023]
Abstract
The estuarine channel of Vitória Bay was evaluated regarding bioaccumulation of metals (Al, Ba, Mn, Fe, Zn, Cu, Cr, Pb, Ni, Cd, Hg) and As in mollusks. Mussels from an aquaculture farm and transplanted into the estuary, whereas oysters were collected in situ in the same area. Concentrations of Al, Mn, Fe, Cr and As were higher in P. perna, whereas C. rhizophorae bioaccumulated more Ba, Zn and Cu. Arsenic concentrations in P. perna exceeded the limit of the Brazilian legislation in the outer estuary. Salinity seemed to influence metal uptake differently for each bivalve, with P. perna absorbing more metal at higher salinities and C. rhizophorae in areas of lower salinity. Hazard index (HI) >1 revealed risk for both bivalves for high level consumers. Target Cancer Risk (TCR) for As revealed threat for human health associated with the consumption of mussels and oysters from the study area.
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Affiliation(s)
- K S Vieira
- Departamento de Geologia Marinha/LAGEMAR - Universidade Federal Fluminense, Av. General Milton Tavares de Souza s/n - 24210-340 - Gragoatá, Niterói, RJ, Brazil
| | - J F Delgado
- Departamento de Geologia Marinha/LAGEMAR - Universidade Federal Fluminense, Av. General Milton Tavares de Souza s/n - 24210-340 - Gragoatá, Niterói, RJ, Brazil
| | - L S Lima
- Departamento de Geologia Marinha/LAGEMAR - Universidade Federal Fluminense, Av. General Milton Tavares de Souza s/n - 24210-340 - Gragoatá, Niterói, RJ, Brazil
| | - P F Souza
- Departamento de Geologia Marinha/LAGEMAR - Universidade Federal Fluminense, Av. General Milton Tavares de Souza s/n - 24210-340 - Gragoatá, Niterói, RJ, Brazil
| | - M A C Crapez
- Departamento de Biologia Marinha, Laboratório de Microbiologia Marinha/MICROMAR - Universidade Federal Fluminense - Outeiro de São João Batista, s/n - 24.001-970, Centro, Niterói, RJ, Brazil
| | - T R Correa
- Departamento de Geologia Marinha/LAGEMAR - Universidade Federal Fluminense, Av. General Milton Tavares de Souza s/n - 24210-340 - Gragoatá, Niterói, RJ, Brazil
| | - V M C Aguiar
- Departamento de Geologia Marinha/LAGEMAR - Universidade Federal Fluminense, Av. General Milton Tavares de Souza s/n - 24210-340 - Gragoatá, Niterói, RJ, Brazil.
| | - J A Baptista Neto
- Departamento de Geologia Marinha/LAGEMAR - Universidade Federal Fluminense, Av. General Milton Tavares de Souza s/n - 24210-340 - Gragoatá, Niterói, RJ, Brazil
| | - E M Fonseca
- Departamento de Geologia Marinha/LAGEMAR - Universidade Federal Fluminense, Av. General Milton Tavares de Souza s/n - 24210-340 - Gragoatá, Niterói, RJ, Brazil
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Vieira KS, Crapez MAC, Lima LS, Delgado JF, Brito EBCC, Fonseca EM, Baptista Neto JA, Aguiar VMC. Evaluation of bioavailability of trace metals through bioindicators in a urbanized estuarine system in southeast Brazil. Environ Monit Assess 2021; 193:18. [PMID: 33389181 DOI: 10.1007/s10661-020-08809-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 12/15/2020] [Indexed: 06/12/2023]
Abstract
The mussel Perna perna is one of the most used bioindicators of coastal areas and the most economically exploited species in Brazil through mariculture. In the present study, P. perna was used to investigate metal pollution in the estuarine area of Vitória Bay. Four sampling sites were located along an estuarine branch of Vitória Bay and stations were sampled during three campaigns. Trace metals in the tissues of P. perna were evaluated as well as dissolved trace metals and other ancillary variables in the water column. Dissolved Cd, Pb, Cu, Ni, and Fe concentrations surpassed the tolerance limits stablished by legislation in all the sampling campaigns. P. perna exhibited concentrations in disagreement with the Brazilian legislation for Cr and As. A general trend of higher concentrations in outer stations was observed for most metals, what suggested the occurrence of flocculation process in the lower estuary, reducing the concentrations of dissolved elements and increasing their bioavailability for the biota through the particulate form. Cd was highlighted with elevated concentrations in dissolved fraction but not detected in P. perna, probably due to chlor-complex formation under influence of more saline waters. Al, Ba, Mn, Fe, Cu, Zn, Ni, Cr, Pb, and As were considered bioavailable, once they were accumulated in the mussels' tissues. Hazard index (HI) and target cancer risk (TCR) showed that the consumption of mussels from the study area offers health risk issues, being iron and arsenic the main contributors for the high indexes.
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Affiliation(s)
- K S Vieira
- Departamento de Geologia Marinha/LAGEMAR, Universidade Federal Fluminense, Av. General Milton Tavares de Souza s/n - 24210-340 - Gragoatá, Niterói, RJ, Brazil
| | - M A C Crapez
- Departamento de Biologia Marinha, Laboratório de Microbiologia Marinha/MICROMAR, Universidade Federal Fluminense, Outeiro de São João Batista, s/n - 24.001-970, Centro, Niterói, RJ, Brasil
| | - L S Lima
- Departamento de Geologia Marinha/LAGEMAR, Universidade Federal Fluminense, Av. General Milton Tavares de Souza s/n - 24210-340 - Gragoatá, Niterói, RJ, Brazil
| | - J F Delgado
- Departamento de Geologia Marinha/LAGEMAR, Universidade Federal Fluminense, Av. General Milton Tavares de Souza s/n - 24210-340 - Gragoatá, Niterói, RJ, Brazil
| | - E B C C Brito
- Departamento de Geologia Marinha/LAGEMAR, Universidade Federal Fluminense, Av. General Milton Tavares de Souza s/n - 24210-340 - Gragoatá, Niterói, RJ, Brazil
| | - E M Fonseca
- Departamento de Geologia Marinha/LAGEMAR, Universidade Federal Fluminense, Av. General Milton Tavares de Souza s/n - 24210-340 - Gragoatá, Niterói, RJ, Brazil
| | - J A Baptista Neto
- Departamento de Geologia Marinha/LAGEMAR, Universidade Federal Fluminense, Av. General Milton Tavares de Souza s/n - 24210-340 - Gragoatá, Niterói, RJ, Brazil
| | - V M C Aguiar
- Departamento de Geologia Marinha/LAGEMAR, Universidade Federal Fluminense, Av. General Milton Tavares de Souza s/n - 24210-340 - Gragoatá, Niterói, RJ, Brazil.
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Pennafirme S, Machado AC, Machado AS, Pérez CA, Pereira DC, Lima I, Lopes RT, Crapez MAC. Unveiling the role of bioturbation on bacterial activity in metal-contaminated sediments. Sci Total Environ 2020; 744:140988. [PMID: 32717472 DOI: 10.1016/j.scitotenv.2020.140988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/13/2020] [Accepted: 07/13/2020] [Indexed: 06/11/2023]
Abstract
The processes permeating the relationships between bioturbation and microorganisms remain poorly understood due to the difficulty of traditional techniques in quantifying their two- and three-dimensional aspects. We used cutting-edge technologies to address the macro- and microorganisms' interactions under metal-contamination. Bioturbation (mucus-lined gallery perimeter, mucus-lined gallery surface area, and gallery water volume) positively influence the carbohydrate consumption rate by the bacterial consortium, elevating bacterial metabolic activity, despite metal-contamination. Synchrotron-based 2D-μXRF revealed that the mucous lining by marine worm during bioturbation as the primary carbon source enhances metal immobilization by bacterial biofilm, improving the bacterial metabolic activity. Bioturbation thus can positively affect bacterial consortium that can use the mucus as a carbon source, which enhances the resistance to metals through biofilm formation in metal-contaminated sediments.
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Affiliation(s)
- Simone Pennafirme
- Graduate Program in Oceans and Earth Dynamics, Federal Fluminense University, Niterói, RJ, Brazil; Graduate Program in Nuclear Engineering, Department of Nuclear Physics, Federal University of Rio de Janeiro, RJ, Brazil.
| | - Alessandra C Machado
- Graduate Program in Nuclear Engineering, Department of Nuclear Physics, Federal University of Rio de Janeiro, RJ, Brazil
| | - Alessandra S Machado
- Graduate Program in Nuclear Engineering, Department of Nuclear Physics, Federal University of Rio de Janeiro, RJ, Brazil
| | - Carlos A Pérez
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, SP, Brazil
| | - Daniella C Pereira
- Graduate Program in Marine Biology and Coastal Environments, Federal Fluminense University, Niterói, RJ, Brazil
| | - Inayá Lima
- Graduate Program in Nuclear Engineering, Department of Nuclear Physics, Federal University of Rio de Janeiro, RJ, Brazil
| | - Ricardo T Lopes
- Graduate Program in Nuclear Engineering, Department of Nuclear Physics, Federal University of Rio de Janeiro, RJ, Brazil
| | - Mirian A C Crapez
- Graduate Program in Oceans and Earth Dynamics, Federal Fluminense University, Niterói, RJ, Brazil; Graduate Program in Marine Biology and Coastal Environments, Federal Fluminense University, Niterói, RJ, Brazil
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Senez-Mello TM, Crapez MAC, Ramos E Silva CA, Silva ET, Fonseca EM. Heavy metals bioconcentration in Crassostrea rhizophorae: A site-to-site transplant experiment at the Potengi estuary, Rio Grande do Norte, Brazil. Sci Rep 2020; 10:246. [PMID: 31937852 PMCID: PMC6959329 DOI: 10.1038/s41598-019-57152-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 12/23/2019] [Indexed: 01/15/2023] Open
Abstract
In this study, we analyzed the bioconcentration of Cd, Cr, Cu, Pb, Ni, and Zn in the soft tissue of transplanted oysters in two sites in the Potengi estuary for six months. Native oysters collected before and after the transplantation experiment provided the background for statistical analyses. Cd, Cr, and Ni showed a strong inverse correlation with oyster weight in both sites. Transplantation upstream of the estuary presented increasing concentrations of Zn, Cu, and Pb and condition index (CI) and decreasing trends for Cd and Ni, whereas Cr oscillated significantly. In the downstream transplantation, Cu, Pb, and Zn and the CI tended to decrease, whereas for Ni, Cd, and Cr, the concentrations increased. Spatiotemporal principal component analysis correlated these results mainly with proximity to the polluting source, seasonality, and previous exposure to heavy metals. These results helped interpret the responses provided by these biomonitors to environmental changes, whether they are natural or anthropogenic.
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Affiliation(s)
- T M Senez-Mello
- Postgraduate Program in Dynamics of Oceans and Earth, Federal Fluminense University, Niteroi, RJ, Brazil.
| | - M A C Crapez
- Postgraduate Program in Dynamics of Oceans and Earth, Federal Fluminense University, Niteroi, RJ, Brazil
| | - C A Ramos E Silva
- Postgraduate Program in Dynamics of Oceans and Earth, Federal Fluminense University, Niteroi, RJ, Brazil.,Center for Study of Water, Biomass and Oil (NAB), Federal Fluminense University, Niteroi, RJ, Brazil
| | - E T Silva
- Department of Oceanography and Limnology, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - E M Fonseca
- Postgraduate Program in Dynamics of Oceans and Earth, Federal Fluminense University, Niteroi, RJ, Brazil
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Krepsky N, Bispo MDGS, Fontana LF, da Silva FS, Torres JPM, Malm O, Silva CG, Crapez MAC. Effects of aeration on the suspended matter from a tropical and eutrophic estuary. J Environ Sci (China) 2019; 86:175-186. [PMID: 31787182 DOI: 10.1016/j.jes.2019.05.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 05/29/2019] [Accepted: 05/30/2019] [Indexed: 06/10/2023]
Abstract
A comprehensive understanding of the complex biogeochemical interactions between organic matter and persistent contaminants in the suspended matter is vital for eco-efficient estuary recovery. However, little is known regarding aeration effects in suspended particulate aggregates. Therefore, this study aimed to investigate the effects of aeration on the suspended matter from a Tropical and Eutrophic estuarine environment. Anoxic water with 60 g/L of suspended particulate matter (SPM) was collected from Guanabara Bay, Rio de Janeiro, Brazil, transferred to experimental boxes and aerated for 61 days. SPM aggregates monitoring included abiotic variables measurements and, determination of total organic matter (TOM), biopolymers composition, bacterial activity, trace metals, and polycyclic aromatic hydrocarbons (PAHs) concentrations. The aeration enhanced dissolved oxygen (DO) concentration and the redox potential (Eh). However, from days 0 to 61 the predominant bacterial activities were denitrification and fermentation. Electron transport system activity increased after day 10, and aerobic activity was detected after day 19. In summary, aeration increased aerobic bacterial activity, lipids (LIP) and trace metal concentrations, although diminished protein/carbohydrate ratio and PAH concentration. Trace metals concentration (Ni, Pb, Cu, Cr, Mn, and Fe) were the highest on day 19 when the pH was 5.9. Copper presented toxic values (Cu > 20.0 μg/g). The pH showed a strong negative correlation with Eh (r = -0.94; p < 0.001). Acidic environment (pH ≤ 5.9) in marine ecosystems with high loads of toxic trace metals is unsafe for biota. Therefore, managers must be aware of the environmental and biological risks of introducing the aeration technique into a eutrophic marine environment.
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Affiliation(s)
- Natascha Krepsky
- Laboratory of Marine Geology, Fluminense Federal University, Ave. Gen. Milton Tavares de Souza s/n°-Gragoatá, 24210-346 Niterói, RJ, Brazil; Radioisotopes Laboratory Eduardo Penna Franca, Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, 373 CCS - Bl. G, 21941-902 Rio de Janeiro, RJ, Brazil; Marine Biology Department, Fluminense Federal University, R. Mario Santos Braga, s/n, Niterói, 24.020-141 Niterói, RJ, Brazil.
| | - Maria das Graças S Bispo
- Marine Biology Department, Fluminense Federal University, R. Mario Santos Braga, s/n, Niterói, 24.020-141 Niterói, RJ, Brazil
| | - Luiz F Fontana
- Laboratory of Marine Geology, Fluminense Federal University, Ave. Gen. Milton Tavares de Souza s/n°-Gragoatá, 24210-346 Niterói, RJ, Brazil; Marine Biology Department, Fluminense Federal University, R. Mario Santos Braga, s/n, Niterói, 24.020-141 Niterói, RJ, Brazil
| | - Frederico S da Silva
- Laboratory of Marine Geology, Fluminense Federal University, Ave. Gen. Milton Tavares de Souza s/n°-Gragoatá, 24210-346 Niterói, RJ, Brazil; Marine Biology Department, Fluminense Federal University, R. Mario Santos Braga, s/n, Niterói, 24.020-141 Niterói, RJ, Brazil
| | - João P M Torres
- Radioisotopes Laboratory Eduardo Penna Franca, Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, 373 CCS - Bl. G, 21941-902 Rio de Janeiro, RJ, Brazil
| | - Olaf Malm
- Radioisotopes Laboratory Eduardo Penna Franca, Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, 373 CCS - Bl. G, 21941-902 Rio de Janeiro, RJ, Brazil
| | - Cleverson G Silva
- Laboratory of Marine Geology, Fluminense Federal University, Ave. Gen. Milton Tavares de Souza s/n°-Gragoatá, 24210-346 Niterói, RJ, Brazil
| | - Mirian A C Crapez
- Marine Biology Department, Fluminense Federal University, R. Mario Santos Braga, s/n, Niterói, 24.020-141 Niterói, RJ, Brazil
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Pennafirme S, Machado AS, Machado AC, Lopes RT, Lima ICB, Crapez MAC. Monitoring bioturbation by a small marine polychaete using microcomputed tomography. Micron 2019; 121:77-83. [PMID: 30951928 DOI: 10.1016/j.micron.2019.03.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 03/23/2019] [Accepted: 03/23/2019] [Indexed: 01/12/2023]
Abstract
Bioturbation is one of the principle biological processes involved in transporting particles and solutes within sediments, which contributes to the maintenance of biodiversity. In muddy polluted environments, bioturbation may increase pollutant flux at the water-sediment interface, thereby enhancing contaminant bioavailability. The behavior of organisms dictates bioturbation, and gallery shape influences the magnitude of solute transport. Thus, quantitative investigations of gallery shape are fundamental to understanding how pollutant and solute transport is enhanced by bioturbators in muddy sediments. However, there is a lack of tools for quantitatively analyzing gallery geometry, especially for assessing bioturbation and gallery properties through time. Despite the potential of microcomputed tomography (μCT) for quantitative analyses of bioturbation, few such studies have been carried out. Here, we aimed to investigate the potential of μCT for quantitatively assessing the shape and geometric properties of galleries made by small marine polychaetes and their evolution through time in muddy sediments. We focused on Laeonereis acuta (Treadwell, 1923) (Nereididae, Polychaeta), which is a key bioturbator in marine coastal ecosystems. Using 2D and 3D images generated from μCT, we evaluated L. acuta galleries and propose several indexes to quantitatively assess gallery evolution and the role of gallery parameters in bioturbation. Quantitative investigations of polychaete galleries using μCT can assist in monitoring how bioturbation influences sedimentary systems.
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Affiliation(s)
- Simone Pennafirme
- Marine Biology Department, Federal Fluminense University, Niterói, RJ, Brazil; Department of Nuclear Physics, Federal University of Rio de Janeiro, RJ, Brazil.
| | | | | | - Ricardo T Lopes
- Department of Nuclear Physics, Federal University of Rio de Janeiro, RJ, Brazil
| | - Inaya C B Lima
- Department of Nuclear Physics, Federal University of Rio de Janeiro, RJ, Brazil
| | - Mirian A C Crapez
- Marine Biology Department, Federal Fluminense University, Niterói, RJ, Brazil
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Aguilera O, Rocha I, Lopes MS, Lima I, Lopes RT, Machado AS, Guimarães RB, Crapez MAC, Tenório MC, Nepomuceno A. The bone degenerative processes in senile fishes from Holocene Brazilian shell mounds. J Fish Dis 2017; 40:1869-1881. [PMID: 28707706 DOI: 10.1111/jfd.12662] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 04/24/2017] [Accepted: 04/25/2017] [Indexed: 06/07/2023]
Abstract
Zooarchaeological collections from shell mounds in Rio de Janeiro (2,470-4,632 cal BP) contain a high prevalence of swollen fish bones belonging to the Atlantic spadefish (Chaetodipterus faber), crevalle jack (Caranx hippos) and fat snook (Centropomus parallelus). Given the lack of knowledge of the bone degenerative process in senile fishes, this study analysed hyperostotic bone in zooarchaeological and modern specimens to obtain high-resolution morphology and microstructure reconstruction. We used microCT as well as X-ray diffraction to characterize the crystallographic changes associated with fish senility. Our results showed that trabecular microstructures in hyperostotic bones were consistent with estimated values of the per cent bone volume-to-total volume ratio (BV/TV) and were greater than 60% in cortical bone. Hyperostotic bones indicated a high radiograph density, and X-ray diffractograms showed a decrease in hydroxyapatite [Ca10 (PO4 )6 (OH)2 ] and calcite (CaCO3 ) neocrystallization. These crystalline and density changes revealed an advanced stage of fish senile and indicate the vulnerability of ageing fish populations.
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Affiliation(s)
- O Aguilera
- Departamento de Biologia Marinha, Programa de Pós-graduação em Biologia Marinha e Ambientes Costeiros, Universidade Federal Fluminense (UFF), Niterói, RJ, Brazil
| | - I Rocha
- Nuclear Instrumentation Laboratory, Nuclear Engineering Program/COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - M S Lopes
- Departamento de Biologia Marinha, Programa de Pós-graduação em Biologia Marinha e Ambientes Costeiros, Universidade Federal Fluminense (UFF), Niterói, RJ, Brazil
| | - I Lima
- Nuclear Instrumentation Laboratory, Nuclear Engineering Program/COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - R T Lopes
- Nuclear Instrumentation Laboratory, Nuclear Engineering Program/COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - A S Machado
- Nuclear Instrumentation Laboratory, Nuclear Engineering Program/COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - R B Guimarães
- Instituto de Física, Universidade Federal Fluminense (UFF), Niterói, RJ, Brazil
| | - M A C Crapez
- Departamento de Biologia Marinha, Programa de Pós-graduação em Biologia Marinha e Ambientes Costeiros, Universidade Federal Fluminense (UFF), Niterói, RJ, Brazil
| | - M C Tenório
- Departamento de Antropologia, Museu Nacional, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - A Nepomuceno
- Departamento de Biologia Marinha, Programa de Pós-graduação em Biologia Marinha e Ambientes Costeiros, Universidade Federal Fluminense (UFF), Niterói, RJ, Brazil
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Bitencourt JAP, Pereira DC, da Silva Neto ID, Crapez MAC. Evaluation of the sensitivity to zinc of ciliates Euplotes vannus and Euplotes crassus and their naturally associated bacteria isolated from a polluted tropical bay. Environ Sci Pollut Res Int 2015; 22:6236-6245. [PMID: 25408072 DOI: 10.1007/s11356-014-3828-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 11/06/2014] [Indexed: 06/04/2023]
Abstract
The aim of this study was to evaluate the Zn sensitivity of Euplotes vannus, Euplotes crassus, and their naturally associated bacteria sampled from sediments in the northwest and east regions of Guanabara Bay. The unexposed ciliates and bacteria did not appear to be negatively affected by 96 h of assay. In the control group, E. vannus exhibited an increase in the biomass content from 2.3 × 10(2) to 2.3 × 10(3) μg C cm(-3) between 0 and 96 h, and E. crassus increased up to 7.07 × 10(2) μg C cm(-3) at 48 h. The maximum biomass was pointed by E. crassus (1.33 × 10(3) μg C cm(-3)) in the presence of 0.005 mg Zn L(-1) and E. vannus was naturally associated bacteria (2.40 × 10(-1) μg C cm(-3)) in the presence of 1.0 mg Zn L(-1) (96 h). The growth of E. vannus from the northwest region showed concentration-dependent manners, and it is more sensitive to zinc than E. crassus from the southeast. Naturally associated bacteria showed better adaptation to increasing concentrations of Zn, and the Dunnett test showed that previous environmental selection is important. These results show that new bioremediation tools are necessary.
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Affiliation(s)
- José Augusto Pires Bitencourt
- Departamento de Biologia Marinha, Universidade Federal Fluminense, Outeiro São João Batista, s/no., Centro, Niterói, Rio de Janeiro, 24020-141, Brazil,
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10
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Sabadini-Santos E, Senez TM, Silva TS, Moreira MR, Mendonça-Filho JG, Santelli RE, Crapez MAC. Organic matter and pyritization relationship in recent sediments from a tropical and eutrophic bay. Mar Pollut Bull 2014; 89:220-228. [PMID: 25444621 DOI: 10.1016/j.marpolbul.2014.09.055] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 09/22/2014] [Accepted: 09/29/2014] [Indexed: 06/04/2023]
Abstract
The degree of pyritization (DOP) and the extension of metals incorporation into pyrite was investigated at Guanabara Bay sediments. Maximum concentrations of total organic carbon (TOC), total sulfur, biopolymers and viable bacteria cells were observed in silted stations close to discharge points of sewage and minimum concentrations at sandy stations at the entrance of the bay. Pyrite iron concentrations (Fepy) was always lower than the reactive iron and Fepy were below the detection limit at sandy stations. The same trend was found to metals, which its degree of pyritization was Mn=Cu>As=Co>Ni>Cd>Zn≫Pb>Cr. The bay gathers all required factors to sulfate reduction and pyrite formation, once the C:S ratio express the reduced tendency conditions, almost half of the TOC present in its sediments is labile and both reactive sulfur and iron are available. However the degree of trace metals pyritization did not exceed 20%, consistent with the median DOP (29%).
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Affiliation(s)
- Elisamara Sabadini-Santos
- Departamento de Geoquímica, Instituto de Química, Universidade Federal Fluminense, Niterói, RJ 24020-150, Brazil.
| | - Thaise M Senez
- Departamento de Biologia Marinha, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ 24020-150, Brazil.
| | - Tabatta S Silva
- Departamento de Biologia Marinha, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ 24020-150, Brazil.
| | - Manuel R Moreira
- Departamento de Geoquímica, Instituto de Química, Universidade Federal Fluminense, Niterói, RJ 24020-150, Brazil.
| | - João Graciano Mendonça-Filho
- Laboratório de Palinofácies and Fácies Orgânica (LAFO), Departamento de Geologia, Instituto de Geociências, Universidade Federal do Rio de Janeiro, RJ 21949-900, Brazil.
| | - Ricardo E Santelli
- Departamento de Química Analítica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-909, Brazil.
| | - Mirian A C Crapez
- Departamento de Biologia Marinha, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ 24020-150, Brazil.
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11
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Bitencourt JAP, Silva FS, Silva-Neto IDDA, Crapez MAC. Protists and bacteria interactions in the presence of oil. AN ACAD BRAS CIENC 2014; 86:745-754. [PMID: 30514031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Accepted: 09/02/2013] [Indexed: 06/09/2023] Open
Abstract
Little is known about the role of protists and bacteria interactions during hydrocarbon biodegradation. This work focused on the effect of oil on protists from three different locations in Guanabara Bay and bacteria from Caulerpa racemosa (BCr), Dictyota menstrualis (BDm) and Laurencia obtusa (BLo) during a 96 h bioassay. Cryptomonadida (site 1, 2 and 3), Scuticociliatida (site 2) and Euplotes sp.1 and Euplotes sp.2 (site 3) appeared after incubation. The highest biomass observed in the controls was as follows: protist site 3 (6.0 µgC.cm-3, 96 h) compared to site 3 with oil (0.7 µgC.cm-3, 96 h); for bacteria, 8.6 µgC.cm-3 (BDm, 72 h) and 17.0 µgC.cm-3 (BCr with oil, 24 h). After treatment, the highest biomasses were as follows: protists at site 1 and BLo, 6.0 µgC.cm-3 (96 h), compared to site 1 and BLo with oil, 3.31 µgC.cm-3 (96 h); the bacterial biomass was 43.1 µgC.cm-3 at site 2 and BDm (96 h). At site 3 and BLo with oil, the biomass was 18.21 µgC.cm-3 (48 h). The highest biofilm proportions were observed from BCr 1.7 µm (96 h) and BLo with oil 1.8 µm (24 h). BCr, BLo and BDm enhanced biofilm size and reduced the capacity of protists to prey.
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Affiliation(s)
- José A P Bitencourt
- Laboratório de Microbiologia Marinha, Departamento de Biologia Marinha, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, Brasil
| | - Frederico Sobrinho Silva
- Laboratório de Palinofácies and Fácies Orgânica, Departamento de Geologia, Instituto de Geociências, CCMN, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - Inácio D DA Silva-Neto
- Laboratório de Protistologia, Departamento de Zoologia, Instituto de Biologia, CCS, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - Mirian A C Crapez
- Laboratório de Microbiologia Marinha, Departamento de Biologia Marinha, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, Brasil
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Fontana LF, da Silva FS, de Figueiredo NG, Brum DM, Netto ADP, de Gigueiredo Junior AG, Crapez MAC. Superficial distribution of aromatic compounds and geomicrobiology of sediments from Suruí Mangrove, Guanabara Bay, RJ, Brazil. AN ACAD BRAS CIENC 2011; 82:1013-30. [PMID: 21152774 DOI: 10.1590/s0001-37652010000400022] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2009] [Accepted: 08/09/2010] [Indexed: 11/22/2022] Open
Abstract
The distribution of selected aromatic compounds and microbiology were assessed in superficial sediments from Suruí Mangrove, Guanabara Bay. Samples were collected at 23 stations, and particle size, organic matter, aromatic compounds, microbiology activity, biopolymers, and topography were determined. The concentration of aromatic compounds was distributed in patches over the entire mangrove, and their highest total concentration was determinated in the mangrove's central area. Particle size differed from most mangroves in that Suruí Mangrove has chernies on the edges and in front of the mangrove, and sand across the whole surface, which hampers the relationship between particle size and hydrocarbons. An average @ 10% p/p of organic matter was obtained, and biopolymers presented high concentrations, especially in the central and back areas of the mangrove. The biopolymers were distributed in high concentrations. The presence of fine sediments is an important factor in hydrocarbon accumulation. With high concentration of organic matter and biopolymers, and the topography with chernies and roots protecting the mangrove, calmer areas are created with the deposition of material transported by wave action. Compared to global distributions, concentrations of aromatic compounds in Suruí Mangrove may be classified from moderate to high, showing that the studied area is highly impacted.
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Affiliation(s)
- Luiz F Fontana
- PPG em Geologia e Geofísica Marinha, Universidade Federal Fluminense, Campus da Praia Vermelha, Gragoatá, Niterói, RJ, Brasil
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13
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Guerra LV, Savergnini F, Silva FS, Bernardes MC, Crapez MAC. Biochemical and microbiological tools for the evaluation of environmental quality of a coastal lagoon system in Southern Brazil. BRAZ J BIOL 2011; 71:461-8. [DOI: 10.1590/s1519-69842011000300016] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2010] [Accepted: 07/12/2010] [Indexed: 11/21/2022] Open
Abstract
This study aimed to evaluate the environmental quality of surface water of the Maricá Lagoon System through physicochemical, biochemical and microbiological parameters, in order to assess its environmental quality. Marine influence over the system was evidenced by the salinity and temperature gradients, where the most distant point, in Maricá Lagoon, presented the largest protein, lipid and biopolymeric carbon concentrations. Biopolymers, with predominance of lipids, presented a pattern that differs from the literature for coastal sediments. The concentration of thermotolerant coliforms characterised Maricá Lagoon and Boqueirão Channel as unfit for bathing (60.0 and 66.3 cells.mL-1, respectively). The bacterioplankton in the system proved to be predominantly heterotrophic, a consumer of organic matter, with fermentative, denitrifying and sulfate-reducing metabolism. No esterase enzyme activity was detected, despite the presence of active metabolism, measured by the electron transport system (average of 0.025 µgO2.h-1.mL-1). The bacterial biomass (autotrophic, heterotrophic and coliforms), bacterial respiratory activity and biopolymer parameters evinced a spatial degradation pattern in the Maricá Lagoon System, where the points with less water renewal are the most impacted.
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Affiliation(s)
- LV Guerra
- Universidade Federal Fluminense, Brazil; Universidade Federal Fluminense
| | - F Savergnini
- Universidade Federal Fluminense, Brazil; Universidade Federal Fluminense
| | - FS Silva
- Universidade Federal Fluminense, Brazil; Universidade Federal Fluminense, Brazil
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Krepsky N, Da Silva FS, Fontana LF, Crapez MAC. Alternative methodology for isolation of biosurfactant-producing bacteria. BRAZ J BIOL 2007; 67:117-24. [PMID: 17505758 DOI: 10.1590/s1519-69842007000100016] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2004] [Accepted: 02/28/2007] [Indexed: 11/21/2022] Open
Abstract
Wide biosurfactant application on biorremediation is limited by its high production cost. The search for cheaper biossurfactant production alternatives has guided our study. The use of selective media containing sucrose (10 g x L(-1)) and Arabian Light oil (2 g x L(-1)) as carbon sources showed to be effective to screen and maintain biosurfactant-producing consortia isolated from mangrove hydrocarbon-contaminated sediment. The biosurfactant production was assayed by kerosene, gasoline and Arabian Light Emulsification activity and the bacterial growth curve was determined by bacterial quantification. The parameters analyzed for biosurfactant production were the growth curve, salinity concentration, flask shape and oxygenation. All bacteria consortia screened were able to emulsify the petroleum derivatives tested. Biosurfactant production increased according to the incubation time; however the type of emulsification (non-aqueous phase or aqueous phase) did not change with time but with the compound tested. The methodology was able to isolate biosurfactant-producing consortia from superficial mangrove sediment contaminated by petroleum hydrocarbons and was recommended for selection of biosurfactant producing bacteria in tropical countries with low financial resources.
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Affiliation(s)
- N Krepsky
- Programa de Pós-Graduação em Biologia Marinha, Universidade Federal Fluminense, Instituto de Biologia, Niterói, Brazil
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