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Ferchiou S, Caza F, Villemur R, Betoulle S, St-Pierre Y. Species- and site-specific circulating bacterial DNA in Subantarctic sentinel mussels Aulacomya atra and Mytilus platensis. Sci Rep 2022; 12:9547. [PMID: 35681072 PMCID: PMC9184546 DOI: 10.1038/s41598-022-13774-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 04/29/2022] [Indexed: 11/27/2022] Open
Abstract
Impacts of climate changes are particularly severe in polar regions where warmer temperatures and reductions in sea-ice covers threaten the ecological integrity of marine coastal ecosystems. Because of their wide distribution and their ecological importance, mussels are currently used as sentinel organisms in monitoring programs of coastal ecosystems around the world. In the present study, we exploited the concept of liquid biopsy combined to a logistically friendly sampling method to study the hemolymphatic bacterial microbiome in two mussel species (Aulacomya atra and Mytilus platensis) in Kerguelen Islands, a remote Subantarctic volcanic archipelago. We found that the circulating microbiome signatures of both species differ significantly even though their share the same mussel beds. We also found that the microbiome differs significantly between sampling sites, often correlating with the particularity of the ecosystem. Predictive models also revealed that both species have distinct functional microbiota, and that the circulating microbiome of Aulacomya atra was more sensitive to changes induced by acute thermal stress when compared to Mytilus platensis. Taken together, our study suggests that defining circulating microbiome is a useful tool to assess the health status of marine ecosystems and to better understand the interactions between the sentinel species and their habitat.
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Affiliation(s)
- Sophia Ferchiou
- INRS-Centre Armand-Frappier Santé Technologie, 531 Boul. des Prairies, Laval, QC, H7V 1B7, Canada
| | - France Caza
- INRS-Centre Armand-Frappier Santé Technologie, 531 Boul. des Prairies, Laval, QC, H7V 1B7, Canada
| | - Richard Villemur
- INRS-Centre Armand-Frappier Santé Technologie, 531 Boul. des Prairies, Laval, QC, H7V 1B7, Canada
| | - Stéphane Betoulle
- UMR-I 02 SEBIO Stress environnementaux et Biosurveillance des milieux aquatiques, Université Reims Champagne-Ardenne, Campus Moulin de la Housse, 51687, Reims, France
| | - Yves St-Pierre
- INRS-Centre Armand-Frappier Santé Technologie, 531 Boul. des Prairies, Laval, QC, H7V 1B7, Canada.
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Bacterial communities versus anthropogenic disturbances in the Antarctic coastal marine environment. ACTA ACUST UNITED AC 2019. [DOI: 10.1007/s42398-019-00064-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Hernández F, Calısto-Ulloa N, Gómez-Fuentes C, Gómez M, Ferrer J, González-Rocha G, Bello-Toledo H, Botero-Coy AM, Boıx C, Ibáñez M, Montory M. Occurrence of antibiotics and bacterial resistance in wastewater and sea water from the Antarctic. JOURNAL OF HAZARDOUS MATERIALS 2019; 363:447-456. [PMID: 30342348 DOI: 10.1016/j.jhazmat.2018.07.027] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Revised: 07/04/2018] [Accepted: 07/06/2018] [Indexed: 05/28/2023]
Abstract
The potential presence of introduced antibiotics in the aquatic environment is a hot topic of concern, particularly in the Antarctic, a highly vulnerable area protected under the Madrid protocol. The increasing presence of human population, especially during summer, might led to the appearance of pharmaceuticals in wastewater. The previous discovery of Escherichia coli strains resistant to antibiotics in sea water and wastewater collected in King George Island motivated our investigation on antibiotics occurrence in these samples. The application of a multi-residue LCMS/MS method for 20 antibiotics, revealed the presence of 8 compounds in treated wastewater, mainly the quinolones ciprofloxacin and norfloxacin (92% and 54% of the samples analyzed, average concentrations 0.89 μg/L and 0.75 μg/L, respectively) and the macrolides azithromycin and clarithromycin (15% positive samples, and average concentrations near 0.4 μg/L), and erythromycin (38% positive samples, average concentration 0.003 μg/L). Metronidazole and clindamycin were found in one sample, at 0.17 and 0.1 μg/L, respectively; and trimethoprim in two samples, at 0.001 μg/L. Analysis of sea water collected near the outfall of the wastewater discharges also showed the sporadic presence of 3 antibiotics (ciprofloxacin, clindamycin, trimethoprim) at low ng/L level, illustrating the impact of pharmaceuticals consumption and the poor removal of these compounds in conventional WWTPs. The most widespread antibiotic in sea water was ciprofloxacin, which was found in 15 out of 34 sea water samples analyzed, at concentrations ranging from 4 to 218 ng/L. Bacteria resistance was observed for some antibiotics identified in the samples (e.g. trimetropim and nalidixic acid -a first generation quinolone). However, resistance to some groups of antibiotics could not be correlated to their presence in the water samples due to analytical limitations (penicillins, tetraciclines). On the contrary, for some groups of antibiotics detected in samples (macrolides), the antibacterial activity against E. Coli was not investigated because these antibiotics do not include this bacterial species in their spectrum of activity. Our preliminary data demonstrate that antibiotics occurrence in the Antarctic aquatic environment is an issue that needs to be properly addressed. Periodical monitoring of water samples and the implementation of additional treatments in the WWTPs are recommended as a first step to prevent potential problems related to the presence of antibiotics and other emerging contaminants in the near future in Antarctica.
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Affiliation(s)
- F Hernández
- Research Institute for Pesticides and Water, University Jaume I, Castellón, Spain.
| | - N Calısto-Ulloa
- CIMAA, Department of Chemical Engineering, Faculty of Engineering, University of Magallanes, Chile
| | - C Gómez-Fuentes
- CIMAA, Department of Chemical Engineering, Faculty of Engineering, University of Magallanes, Chile
| | - M Gómez
- Laboratory of Hydro-Environmental Biotechnology, Department of Water Resources, Faculty of Agricultural Engineering, University of Concepción, Chile
| | - J Ferrer
- Laboratory of Hydro-Environmental Biotechnology, Department of Water Resources, Faculty of Agricultural Engineering, University of Concepción, Chile
| | - G González-Rocha
- Laboratorio de Investigación de Agentes Antibacterianos (LIAA), Departamento de Microbiología, Facultad de Ciencias Biológicas, Universidad de Concepción, Chile
| | - H Bello-Toledo
- Laboratorio de Investigación de Agentes Antibacterianos (LIAA), Departamento de Microbiología, Facultad de Ciencias Biológicas, Universidad de Concepción, Chile
| | - A M Botero-Coy
- Research Institute for Pesticides and Water, University Jaume I, Castellón, Spain
| | - C Boıx
- Research Institute for Pesticides and Water, University Jaume I, Castellón, Spain
| | - M Ibáñez
- Research Institute for Pesticides and Water, University Jaume I, Castellón, Spain
| | - M Montory
- Laboratory of Hydro-Environmental Biotechnology, Department of Water Resources, Faculty of Agricultural Engineering, University of Concepción, Chile.
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Power ML, Samuel A, Smith JJ, Stark JS, Gillings MR, Gordon DM. Escherichia coli out in the cold: Dissemination of human-derived bacteria into the Antarctic microbiome. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 215:58-65. [PMID: 27179324 DOI: 10.1016/j.envpol.2016.04.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 03/19/2016] [Accepted: 04/04/2016] [Indexed: 05/12/2023]
Abstract
Discharge of untreated sewage into Antarctic environments presents a risk of introducing non-native microorganisms, but until now, adverse consequences have not been conclusively identified. Here we show that sewage disposal introduces human derived Escherichia coli carrying mobile genetic elements and virulence traits with the potential to affect the diversity and evolution of native Antarctic microbial communities. We compared E. coli recovered from environmental and animal sources in Antarctica to a reference collection of E. coli from humans and non-Antarctic animals. The distribution of phylogenetic groups and frequency of 11 virulence factors amongst the Antarctic isolates were characteristic of E. coli strains more commonly associated with humans. The rapidly emerging E. coli ST131 and ST95 clones were found amongst the Antarctic isolates, and ST95 was the predominant E. coli recovered from Weddell seals. Class 1 integrons were found in 15% of the Antarctic E. coli with 4 of 5 identified gene cassette arrays containing antibiotic resistance genes matching those common in clinical contexts. Disposing untreated sewage into the Antarctic environment does disseminate non-native microorganisms, but the extent of this impact and implications for Antarctic ecosystem health are, as yet, poorly understood.
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Affiliation(s)
- Michelle L Power
- Biological Sciences, Faculty of Science and Engineering, Macquarie University, North Ryde, NSW 2109, Australia.
| | - Angelingifta Samuel
- Division of Evolution, Ecology and Genetics, Research School of Biology, The Australian National University, 116 Daley Road, Acton, ACT 2601, Australia.
| | - James J Smith
- Queensland University of Technology, Science and Engineering Faculty, School of Earth, Environmental and Biological Sciences, GPO Box 2434, Brisbane, QLD 4001, Australia; JJSC Consulting Ltd., 16 Mullacor St., Ferny Grove, QLD 4055, Australia.
| | - Jonathon S Stark
- Antarctic Conservation and Management, Australian Antarctic Division, 203 Channel Highway, Kingston, Tasmania 7050, Australia.
| | - Michael R Gillings
- Biological Sciences, Faculty of Science and Engineering, Macquarie University, North Ryde, NSW 2109, Australia
| | - David M Gordon
- Division of Evolution, Ecology and Genetics, Research School of Biology, The Australian National University, 116 Daley Road, Acton, ACT 2601, Australia.
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Aronson RB, Thatje S, McClintock JB, Hughes KA. Anthropogenic impacts on marine ecosystems in Antarctica. Ann N Y Acad Sci 2011; 1223:82-107. [PMID: 21449967 DOI: 10.1111/j.1749-6632.2010.05926.x] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Antarctica is the most isolated continent on Earth, but it has not escaped the negative impacts of human activity. The unique marine ecosystems of Antarctica and their endemic faunas are affected on local and regional scales by overharvesting, pollution, and the introduction of alien species. Global climate change is also having deleterious impacts: rising sea temperatures and ocean acidification already threaten benthic and pelagic food webs. The Antarctic Treaty System can address local- to regional-scale impacts, but it does not have purview over the global problems that impinge on Antarctica, such as emissions of greenhouse gases. Failure to address human impacts simultaneously at all scales will lead to the degradation of Antarctic marine ecosystems and the homogenization of their composition, structure, and processes with marine ecosystems elsewhere.
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Affiliation(s)
- Richard B Aronson
- Department of Biological Sciences, Florida Institute of Technology, Melbourne, Florida, USA.
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Furukawa T, Yoshida T, Suzuki Y. Biota of fecal bacteria concentrated in stable foam formed along water's edge in coastal zones. ACTA ACUST UNITED AC 2010. [DOI: 10.1179/175889709x12615681946449] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Morozkina EV, Slutskaya ES, Fedorova TV, Tugay TI, Golubeva LI, Koroleva OV. Extremophilic microorganisms: Biochemical adaptation and biotechnological application (review). APPL BIOCHEM MICRO+ 2010. [DOI: 10.1134/s0003683810010011] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Abstract
Sewage and its microbiology, treatment and disposal are important to the topic of Antarctic wildlife health because disposal of untreated sewage effluent into the Antarctic marine environment is both allowed and commonplace. Human sewage contains enteric bacteria as normal flora, and has the potential to contain parasites, bacteria and viruses which may prove pathogenic to Antarctic wildlife. Treatment can reduce levels of micro-organisms in sewage effluent, but is not a requirement of the Environmental Protocol to the Antarctic Treaty (the Madrid Protocol). In contrast, the deliberate release of non-native organisms for any other reason is prohibited. Hence, disposal of sewage effluent to the marine environment is the only activity routinely undertaken in Antarctica knowing that it will likely result in the release of large numbers of potentially non-native species. When the Madrid Protocol was negotiated, the decision to allow release of untreated sewage effluent was considered the only pragmatic option, as a prohibition would have been costly, and may not have been achievable by many Antarctic operators. In addition, at that time the potential for transmission of pathogens to wildlife from sewage was not emphasised as a significant potential risk. Since then, the transmission of disease-causing agents between species is more widely recognised and it is now timely to consider the risks of continued discharge of sewage effluent in Antarctica and whether there are practical alternatives.
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Hughes KA. Reducing sewage pollution in the Antarctic marine environment using a sewage treatment plant. MARINE POLLUTION BULLETIN 2004; 49:850-853. [PMID: 15530529 DOI: 10.1016/j.marpolbul.2004.05.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Despite Antarctica being the largest pristine wilderness on Earth, many coastal Antarctic research stations release untreated sewage waste into the marine environment, which may have negative effects on local wildlife. In February 2003 a sewage treatment plant was installed at Rothera Research Station (Adelaide Island, Antarctic Peninsula). After one year of operation the sewage treatment plant had dramatically reduced the microbiological pollution in the near-shore marine environment around the outfall and seawater quality conformed to European Union Bathing Water Standards.
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Affiliation(s)
- Kevin A Hughes
- British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge CB3 0ET, UK.
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