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Chen Z, Cameron TC, Couce E, Garcia C, Hicks N, Thomas GE, Thompson MSA, Whitby C, O'Gorman EJ. Oil and gas platforms degrade benthic invertebrate diversity and food web structure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 929:172536. [PMID: 38643886 DOI: 10.1016/j.scitotenv.2024.172536] [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: 02/21/2024] [Revised: 04/14/2024] [Accepted: 04/15/2024] [Indexed: 04/23/2024]
Abstract
Oil and gas exploitation introduces toxic contaminants such as hydrocarbons and heavy metals to the surrounding sediment, resulting in deleterious impacts on marine benthic communities. This study combines benthic monitoring data over a 30-year period in the North Sea with dietary information on >1400 taxa to quantify the effects of active oil and gas platforms on benthic food webs using a multiple before-after control-impact experiment. Contamination from oil and gas platforms caused declines in benthic food web complexity, community abundance, and biodiversity. Fewer trophic interactions and increased connectance indicated that the community became dominated by generalists adapting to alternative resources, leading to simpler but more connected food webs in contaminated environments. Decreased mean body mass, shorter food chains, and the dominance of small detritivores such as Capitella capitata near to structures suggested a disproportionate loss of larger organisms from higher trophic levels. These patterns were associated with concentrations of hydrocarbons and heavy metals that exceed OSPAR's guideline thresholds of sediment toxicity. This study provides new evidence to better quantify and manage the environmental consequences of oil and gas exploitation at sea.
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Affiliation(s)
- Zelin Chen
- School of Life Sciences, University of Essex, Colchester CO4 3SQ, United Kingdom.
| | - Tom C Cameron
- School of Life Sciences, University of Essex, Colchester CO4 3SQ, United Kingdom
| | - Elena Couce
- Centre for Environment, Fisheries and Aquaculture Science (Cefas), Pakefield Road, Lowestoft, Suffolk NR33 0HT, United Kingdom
| | - Clement Garcia
- Centre for Environment, Fisheries and Aquaculture Science (Cefas), Pakefield Road, Lowestoft, Suffolk NR33 0HT, United Kingdom
| | - Natalie Hicks
- School of Life Sciences, University of Essex, Colchester CO4 3SQ, United Kingdom
| | - Gareth E Thomas
- School of Life Sciences, University of Essex, Colchester CO4 3SQ, United Kingdom; Life Sciences, Natural History Museum, Cromwell Road, London SW7 5HD, United Kingdom
| | - Murray S A Thompson
- Centre for Environment, Fisheries and Aquaculture Science (Cefas), Pakefield Road, Lowestoft, Suffolk NR33 0HT, United Kingdom
| | - Corinne Whitby
- School of Life Sciences, University of Essex, Colchester CO4 3SQ, United Kingdom
| | - Eoin J O'Gorman
- School of Life Sciences, University of Essex, Colchester CO4 3SQ, United Kingdom
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Soares MP, Silva LM, De Angelis CF, Cardoso IL, Taylor EW, da Costa Souza I, Bendhack F, de Souza Vieira N, Monferrán MV, Wunderlin DA, Fernandes MN, Leite CAC. Effect of acute exposure to settleable atmospheric particulate matter emitted by the steel industry on hematology and innate immunity of fat snook (Centropomus parallelus). MARINE POLLUTION BULLETIN 2024; 203:116428. [PMID: 38735170 DOI: 10.1016/j.marpolbul.2024.116428] [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: 02/28/2024] [Revised: 04/22/2024] [Accepted: 04/25/2024] [Indexed: 05/14/2024]
Abstract
The steel industry is a significant worldwide source of atmospheric particulate matter (PM). Part of PM may settle (SePM) and deposit metal/metalloid and metallic nanoparticles in aquatic ecosystems. However, such an air-to-water cross-contamination is not observed by most monitoring agencies. The region of Vitoria City is the main location of iron processing for exports in Brazil, and it has rivers, estuaries, and coastal areas affected by SePM. We have evaluated the effects of SePM on a local representative fish species, the fat snook, Centropomus parallelus. After acclimation, 48 fishes (61.67 ± 27.83 g) were individually exposed for 96 h to diverse levels of SePM (0.0, 0.01, 0.1 and 1 g/L-1). The presence of metals in the blood and several blood biomarkers were analyzed to evaluate the impact of SePM on stress signaling, blood oxygen transport capacity, and innate immune activity. Metal bioaccumulation was measured from blood in two separately analyzed compartments: intracellular (erythrocytes plus white blood cells) and extracellular (plasma). The major metals present at all contamination levels in both compartments were Fe and Zn, followed by Al and Cu, plus traces of 'Emerging metals': Ba, Ce, La, Rb, Se, Sr, and Ti. Emerging metals refer to those that have recently been identified in water as contaminants, encompassing rare earth elements and critical technology elements, as documented in previous studies (See REEs and TCEs in Cobelo-García et al., 2015; Batley et al., 2022). Multivariate analysis revealed that SePM had strong, dose-dependent correlations with all biomarker groups and indicated that blood oxygen-carrying capacity had the highest contamination responsiveness. Metal contamination also increased cortisol and blood glucose levels, attesting to increased stress signaling, and had a negative effect on innate immune activity. Knowledge of the risks related to SePM contamination remains rudimentary. However, the fact that there was metal bioaccumulation, causing impairment of fundamental physiological and cellular processes in this ecologically relevant fish species, consumed by the local human population, highlights the pressing need for further monitoring and eventual control of SePM contamination.
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Affiliation(s)
- Michelly Pereira Soares
- Department of Physiological Sciences, Federal University of São Carlos, Rod Washington Luis km 235, 13565-905 São Carlos, SP, Brazil.
| | - Ludmila Mendes Silva
- Department of Physiological Sciences, Federal University of São Carlos, Rod Washington Luis km 235, 13565-905 São Carlos, SP, Brazil.
| | - Carolina Fernandes De Angelis
- Department of Physiological Sciences, Federal University of São Carlos, Rod Washington Luis km 235, 13565-905 São Carlos, SP, Brazil
| | - Israel Luz Cardoso
- Department of Physiological Sciences, Federal University of São Carlos, Rod Washington Luis km 235, 13565-905 São Carlos, SP, Brazil
| | - Edwin W Taylor
- School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Iara da Costa Souza
- Department of Physiological Sciences, Federal University of São Carlos, Rod Washington Luis km 235, 13565-905 São Carlos, SP, Brazil
| | - Fabiano Bendhack
- Center for Marine Studies, Federal University of Paraná - UFPR, Pontal do Paraná, PR, Brazil.
| | - Nathan de Souza Vieira
- Center for Marine Studies, Federal University of Paraná - UFPR, Pontal do Paraná, PR, Brazil
| | - Magdalena V Monferrán
- ICYTAC: Instituto de Ciencia y Tecnología de Alimentos Córdoba, CONICET and Departmento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Bv. Medina Allende s/n, Ciudad Universitaria, 5000 Córdoba, Argentina.
| | - Daniel A Wunderlin
- ICYTAC: Instituto de Ciencia y Tecnología de Alimentos Córdoba, CONICET and Departmento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Bv. Medina Allende s/n, Ciudad Universitaria, 5000 Córdoba, Argentina
| | - Marisa Narciso Fernandes
- Department of Physiological Sciences, Federal University of São Carlos, Rod Washington Luis km 235, 13565-905 São Carlos, SP, Brazil.
| | - Cléo Alcantara Costa Leite
- Department of Physiological Sciences, Federal University of São Carlos, Rod Washington Luis km 235, 13565-905 São Carlos, SP, Brazil.
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Deng Z, Yu T, Li S, He C, Hu B, Zhang X. Effects of 2,6-di-tert-butyl-hydroxytotulene and mineral-lubricant base oils on microbial communities during lubricants biodegradation. ENVIRONMENTAL RESEARCH 2023; 231:116120. [PMID: 37182830 DOI: 10.1016/j.envres.2023.116120] [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: 03/06/2023] [Revised: 05/06/2023] [Accepted: 05/11/2023] [Indexed: 05/16/2023]
Abstract
2,6-Di-tert-butyl-hydroxytotulene (BHT) is an additive commonly used in the manufacturing of lubricants to improve their antioxidant properties. However, in this study, we found that BHT affects the biodegradation of bio-lubricants by influencing the microbial community during the degradation of bio-lubricants. Specifically, BHT was found to reduce bacterial richness in activated sludge, but it increased the relative abundance of Actinobacteria (from 21.24% to 40.89%), Rhodococcus (from 17.15% to 31.25%), Dietzia (from 0.069% to 6.49%), and Aequorivita (from 0.90% to 1.85%). LEfSe analysis and co-occurrence network analysis suggested that Actinobacteria could be potential biomarkers and keystone taxa in microbial communities. Using the MetaCyc pathway database, the study found that BHT interfered with cellular biosynthetic processes. Additionally, the study also showed that mineral-lubricant base oils, which are difficult to degrade, significantly altered the diversity and composition of the microbiome. Overall, the findings demonstrate that BHT and mineral-lubricant base oils can substantially alter bacterial richness, structure, and function, potentially contributing to the difficulty in degrading lubricants. These findings have implications for the development of more biodegradable lubricants and the management of industrial waste containing lubricants.
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Affiliation(s)
- Zhenkun Deng
- Beijing Key Lab of Bioprocess, National Energy R&D Center for Biorefinery, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Tong Yu
- Beijing Key Lab of Bioprocess, National Energy R&D Center for Biorefinery, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Shuai Li
- Beijing Key Lab of Bioprocess, National Energy R&D Center for Biorefinery, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Changliu He
- Beijing Key Lab of Bioprocess, National Energy R&D Center for Biorefinery, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Bing Hu
- Beijing Key Lab of Bioprocess, National Energy R&D Center for Biorefinery, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Xu Zhang
- Beijing Key Lab of Bioprocess, National Energy R&D Center for Biorefinery, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China.
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