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Gourgues S, Goñi-Urriza M, Milhe-Poutingon M, Baldoni-Andrey P, Gurieff NB, Gelber C, Le Faucheur S. Cobalt effects on prokaryotic communities of river biofilms: Impact on their colonization kinetics, structure and functions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 951:175713. [PMID: 39191324 DOI: 10.1016/j.scitotenv.2024.175713] [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: 05/16/2024] [Revised: 08/19/2024] [Accepted: 08/21/2024] [Indexed: 08/29/2024]
Abstract
Although cobalt (Co) plays a significant role in the transition to low-carbon technologies, its environmental impact remains largely unknown. This study examines Co impacts on the prokaryotic communities within river biofilms to evaluate their potential use as bioindicators of Co contamination. To this end, biofilms were cultivated in artificial streams enriched with different environmental Co concentrations (0.1, 0.5, and 1 μM Co) over 28 days and examined for prokaryotic abundance and diversity via quantitative PCR and DNA-metabarcoding every 7 days. The prokaryotic community's resilience was further investigated after an additional 35 days without Co contamination. The prokaryotic communities were affected by 0.5 and 1 μM Co from the onset of biofilm colonization. The biofilm biomass was comparable between treatments, but the community composition differed. Control biofilms were dominated by Cyanobacteria and Planctomycetes, whereas Bacteroidetes dominated the Co-contaminated biofilms. Potential functional redundancy was observed through the implementation of carbon fixation alternatives by non-photosynthetic prokaryotes in biofilms exposed to high Co concentrations. No structural resilience was observed in the biofilms after 35 days without Co contamination. Measuring the prokaryotic community structural response using molecular approaches appears to be a promising method for assessing shifts in water quality owing to Co contamination.
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Affiliation(s)
- Sarah Gourgues
- Universite de Pau et des Pays de l'Adour, E2S-UPPA, CNRS, IPREM, Pau, France.
| | - Marisol Goñi-Urriza
- Universite de Pau et des Pays de l'Adour, E2S-UPPA, CNRS, IPREM, Pau, France
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2
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Gonçalves S, Pollitt A, Pietz S, Feckler A, Bundschuh M. Microbial community history and leaf species shape bottom-up effects in a freshwater shredding amphipod. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:168926. [PMID: 38029985 DOI: 10.1016/j.scitotenv.2023.168926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 11/21/2023] [Accepted: 11/25/2023] [Indexed: 12/01/2023]
Abstract
Arable land use and the associated application of agrochemicals can affect local freshwater communities with consequences for the entire ecosystem. For instance, the structure and function of leaf-associated microbial communities can be affected by pesticides, such as fungicides. Additionally, the leaf species on which these microbial communities grow reflects another environmental filter for community structure. These factors and their interaction may jointly modify leaves' nutritional quality for higher trophic levels. To test this assumption, we studied the structure of leaf-associated microbial communities with distinct exposure histories (pristine [P] vs vineyard run off [V]) colonising two leaf species (black alder, European beech, and a mixture thereof). By offering these differently colonised leaves as food to males and females of the leaf-shredding amphipod Gammarus fossarum (Crustacea; Amphipoda) we assessed for potential bottom-up effects. The growth rate, feeding rate, faeces production and neutral lipid fatty acid profile of the amphipod served as response variable in a 2 × 3 × 2-factorial test design over 21d. A clear separation of community history (P vs V), leaf species and an interaction between the two factors was observed for the leaf-associated aquatic hyphomycete (i.e., fungal) community. Sensitive fungal species were reduced by up to 70 % in the V- compared to P-community. Gammarus' growth rate, feeding rate and faeces production were affected by the factor leaf species. Growth was negatively affected when Gammarus were fed with beech leaves only, whereas the impact of alder and the mixture of both leaf species was sex-specific. Overall, this study highlights that leaf species identity had a more substantial impact on gammarids relative to the microbial community itself. Furthermore, the sex-specificity of the observed effects (excluding fatty acid profile, which was only measured for male) questions the procedure of earlier studies, that is using either only one sex or not being able to differentiate between males and females. However, these results need additional verification to support a reliable extrapolation.
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Affiliation(s)
- Sara Gonçalves
- iES Landau, RPTU Kaiserslautern-Landau, Fortstraße 7, 76829 Landau, Germany; Eawag - Swiss Federal Institute of Aquatic Sciences and technology, Überlandstrasse 133, 8600 Dübendorf, Switzerland
| | - Annika Pollitt
- iES Landau, RPTU Kaiserslautern-Landau, Fortstraße 7, 76829 Landau, Germany
| | - Sebastian Pietz
- iES Landau, RPTU Kaiserslautern-Landau, Fortstraße 7, 76829 Landau, Germany
| | - Alexander Feckler
- iES Landau, RPTU Kaiserslautern-Landau, Fortstraße 7, 76829 Landau, Germany; Eußerthal Ecosystem Research Station, RPTU Kaiserslautern-Landau, Birkenthalstraße 13, 76857 Eußerthal, Germany
| | - Mirco Bundschuh
- iES Landau, RPTU Kaiserslautern-Landau, Fortstraße 7, 76829 Landau, Germany; Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Box 7050, 750 07 Uppsala, Sweden.
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Bertrans-Tubau L, Menard Y, Batisson I, Creusot N, Mazzella N, Millan-Navarro D, Moreira A, Morin S, Ponsá S, Abril M, Proia L, Romaní AM, Artigas J. Dissipation of pesticides by stream biofilms is influenced by hydrological histories. FEMS Microbiol Ecol 2023; 99:fiad083. [PMID: 37480243 DOI: 10.1093/femsec/fiad083] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/18/2023] [Accepted: 07/20/2023] [Indexed: 07/23/2023] Open
Abstract
To evaluate the effects of hydrological variability on pesticide dissipation capacity by stream biofilms, we conducted a microcosm study. We exposed biofilms to short and frequent droughts (daily frequency), long and less frequent droughts (weekly frequency) and permanently immersed controls, prior to test their capacities to dissipate a cocktail of pesticides composed of tebuconazole, terbuthylazine, imidacloprid, glyphosate and its metabolite aminomethylphosphonic acid. A range of structural and functional descriptors of biofilms (algal and bacterial biomass, extracellular polymeric matrix (EPS) concentration, microbial respiration, phosphorus uptake and community-level physiological profiles) were measured to assess drought effects. In addition, various parameters were measured to characterise the dynamics of pesticide dissipation by biofilms in the different hydrological treatments (% dissipation, peak asymmetry, bioconcentration factor, among others). Results showed higher pesticide dissipation rates in biofilms exposed to short and frequent droughts, despite of their lower biomass and EPS concentration, compared to biofilms in immersed controls or exposed to long and less frequent droughts. High accumulation of hydrophobic pesticides (tebuconazole and terbuthylazine) was measured in biofilms despite the short exposure time (few minutes) in our open-flow microcosm approach. This research demonstrated the stream biofilms capacity to adsorb hydrophobic pesticides even in stressed drought environments.
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Affiliation(s)
- Lluís Bertrans-Tubau
- BETA Technological Centre- University of Vic-Central University of Catalunya (BETA-UVic-UCC), Carretera de Roda 70, 08500 Vic, Barcelona, Spain
| | - Yoann Menard
- CNRS, Laboratoire Microorganismes: Génome et Environnement (LMGE), Université Clermont Auvergne, Campus Universitaire des Cézeaux, 1 Impasse Amélie Murat. F-63000 Clermont-Ferrand, France
| | - Isabelle Batisson
- CNRS, Laboratoire Microorganismes: Génome et Environnement (LMGE), Université Clermont Auvergne, Campus Universitaire des Cézeaux, 1 Impasse Amélie Murat. F-63000 Clermont-Ferrand, France
| | | | | | | | | | - Soizic Morin
- INRAE, UR EABX, 50 avenue de Verdun, F-33612 Cestas, France
| | - Sergio Ponsá
- BETA Technological Centre- University of Vic-Central University of Catalunya (BETA-UVic-UCC), Carretera de Roda 70, 08500 Vic, Barcelona, Spain
| | - Meritxell Abril
- BETA Technological Centre- University of Vic-Central University of Catalunya (BETA-UVic-UCC), Carretera de Roda 70, 08500 Vic, Barcelona, Spain
| | - Lorenzo Proia
- BETA Technological Centre- University of Vic-Central University of Catalunya (BETA-UVic-UCC), Carretera de Roda 70, 08500 Vic, Barcelona, Spain
| | - Anna M Romaní
- Institute of Aquatic Ecology, University of Girona, Campus Montilivi, 17005 Girona, Spain
| | - Joan Artigas
- CNRS, Laboratoire Microorganismes: Génome et Environnement (LMGE), Université Clermont Auvergne, Campus Universitaire des Cézeaux, 1 Impasse Amélie Murat. F-63000 Clermont-Ferrand, France
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Afonso AC, Gomes IB, Saavedra MJ, Giaouris E, Simões LC, Simões M. Bacterial coaggregation in aquatic systems. WATER RESEARCH 2021; 196:117037. [PMID: 33751976 DOI: 10.1016/j.watres.2021.117037] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 03/07/2021] [Accepted: 03/08/2021] [Indexed: 06/12/2023]
Abstract
The establishment of a sessile community is believed to occur in a sequence of steps where genetically distinct bacteria can become attached to partner cells via specific molecules, in a process known as coaggregation. The presence of bacteria with the ability to autoaggregate and coaggregate has been described for diverse aquatic systems, particularly freshwater, drinking water, wastewater, and marine water. In these aquatic systems, coaggregation already demonstrated a role in the development of complex multispecies sessile communities, including biofilms. While specific molecular aspects on coaggregation in aquatic systems remain to be understood, clear evidence exist on the impact of this mechanism in multispecies biofilm resilience and homeostasis. The identification of bridging bacteria among coaggregating consortia has potential to improve the performance of wastewater treatment plants and/or to contribute for the development of strategies to control undesirable biofilms. This study provides a comprehensive analysis on the occurrence and role of bacterial coaggregation in diverse aquatic systems. The potential of this mechanism in water-related biotechnology is further described, with particular emphasis on the role of bridging bacteria.
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Affiliation(s)
- Ana C Afonso
- LEPABE, Faculty of Engineering, Department of Chemical Engineering, University of Porto, Porto, Portugal
| | - Inês B Gomes
- LEPABE, Faculty of Engineering, Department of Chemical Engineering, University of Porto, Porto, Portugal
| | - Maria José Saavedra
- CITAB, Centre for the Research and Technology for Agro-Environment and Biological Sciences, University of Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | - Efstathios Giaouris
- Department of Food Science and Nutrition, School of the Environment, University of the Aegean, Ierou Lochou 10 & Makrygianni, Myrina 81400, Lemnos, Greece
| | - Lúcia C Simões
- CEB, Centre of Biological Engineering, University of Minho, Campus de Gualtar, Braga, Portugal
| | - Manuel Simões
- LEPABE, Faculty of Engineering, Department of Chemical Engineering, University of Porto, Porto, Portugal.
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Rheinheimer Dos Santos D, Monteiro de Castro Lima JA, Paranhos Rosa de Vargas J, Camotti Bastos M, Santanna Dos Santos MA, Mondamert L, Labanowski J. Pesticide bioaccumulation in epilithic biofilms as a biomarker of agricultural activities in a representative watershed. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:381. [PMID: 32430726 DOI: 10.1007/s10661-020-08264-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 03/31/2020] [Indexed: 05/23/2023]
Abstract
Brazil is one of the largest consumers of pesticides in the world. The high rainfall rate and inadequate soil use and management promote the transfer of these compounds to the aquatic system. The aim of this study was to identify and quantify pesticides present in epilithic biofilms in order to evaluate the effectiveness of this matrix as a bioindicator able to discriminate areas and periods with different inputs of pesticides. Among the 25 pesticides analyzed in the biofilms, 20 compounds were detected. The epilithic biofilms picked up pesticides independent of their polarities, even in the period of lower use. The frequency and median concentration of five herbicides (2,4-D, atrazine, desethyl-atrazine, simazine, nicosulfuron), three fungicides (carbendazim, epoxiconazole, tebuconazole), and one insecticide (imidacloprid) were highest in biofilms sampled in summer crops during the growing period. Biofilms collected in the upper region of the catchment, where genetically modified soybean and corn cultivated in a no-tillage system prevail, the highest frequency and median concentration of three herbicides (2,4-D, thifensulfuron, isoproturon), four fungicides (carbendazim, epoxiconazole, tebuconazole, metconazole), and one insecticide (imidacloprid) were observed. Despite the excessive amounts of pesticides used in the catchment, the median values of all pesticides in the epilithic biofilm were considered low. The lower diversity and concentration of pesticides observed in the autumn/winter season is representative of lower use of pesticides, barriers to pesticide transfer from soil to water, and the biofilm's resilience capacity to decompose pesticides.
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Affiliation(s)
- Danilo Rheinheimer Dos Santos
- Universidade Federal de Santa Maria. Av. Roraima nº 1000. Cidade Universitária, Bairro Camobi. Centro de Ciências Rurais, Prédio 42, Departamento de Solos, Santa Maria, Rio Grande do Sul, Brazil
| | - José Augusto Monteiro de Castro Lima
- Universidade Federal de Santa Maria. Av. Roraima nº 1000. Cidade Universitária, Bairro Camobi. Centro de Ciências Rurais, Prédio 42, Departamento de Solos, Santa Maria, Rio Grande do Sul, Brazil
- Instituto Federal de Educação Ciência e Tecnologia - Alagoas, Campus Maragogi, Rodovia Arnon de Melo, AL 101 Norte, S/N Atemar de Barros, 56304205, Maragogi, AL, Brazil
- Université de Poitiers, IC2MP UMR 7285 ENSI Poitiers Bâtiment B16 7, rue Marcel Doré TSA, 41105 86073, Poitiers Cedex 9, France
| | - Jocelina Paranhos Rosa de Vargas
- Universidade Federal de Santa Maria. Av. Roraima nº 1000. Cidade Universitária, Bairro Camobi. Centro de Ciências Rurais, Prédio 42, Departamento de Solos, Santa Maria, Rio Grande do Sul, Brazil.
- Université de Poitiers, IC2MP UMR 7285 ENSI Poitiers Bâtiment B16 7, rue Marcel Doré TSA, 41105 86073, Poitiers Cedex 9, France.
| | - Marilia Camotti Bastos
- Universidade Federal de Santa Maria. Av. Roraima nº 1000. Cidade Universitária, Bairro Camobi. Centro de Ciências Rurais, Prédio 42, Departamento de Solos, Santa Maria, Rio Grande do Sul, Brazil
- Université de Poitiers, IC2MP UMR 7285 ENSI Poitiers Bâtiment B16 7, rue Marcel Doré TSA, 41105 86073, Poitiers Cedex 9, France
| | - Maria Alice Santanna Dos Santos
- Universidade Federal de Santa Maria. Av. Roraima nº 1000. Cidade Universitária, Bairro Camobi. Centro de Ciências Rurais, Prédio 42, Departamento de Solos, Santa Maria, Rio Grande do Sul, Brazil
| | - Leslie Mondamert
- Université de Poitiers, IC2MP UMR 7285 ENSI Poitiers Bâtiment B16 7, rue Marcel Doré TSA, 41105 86073, Poitiers Cedex 9, France
| | - Jérôme Labanowski
- Université de Poitiers, IC2MP UMR 7285 ENSI Poitiers Bâtiment B16 7, rue Marcel Doré TSA, 41105 86073, Poitiers Cedex 9, France
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6
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Jepsen R, He K, Blaney L, Swan C. Effects of antimicrobial exposure on detrital biofilm metabolism in urban and rural stream environments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 666:1151-1160. [PMID: 30970480 DOI: 10.1016/j.scitotenv.2019.02.254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 02/13/2019] [Accepted: 02/16/2019] [Indexed: 06/09/2023]
Abstract
The occurrence of antimicrobials and other pharmaceuticals in streams is increasingly being reported, yet the impacts of these contaminants of emerging concern on aquatic ecosystems are relatively unknown. Bacteria and fungi are vital components of stream environments and, therefore, exposure to antimicrobials may have important consequences for ecosystem services, such as carbon cycling. The objective of this study was to investigate how two antimicrobials, ciprofloxacin and climbazole, impact detrital biofilm metabolism in urban and rural streams. To establish baseline conditions, the biological oxygen demand (BOD) of red maple (Acer rubrum) biofilms was measured in one urban and one rural stream. In mesocosm studies, the BOD of biofilms on single- and mixed-species leaf litter from the same sites was measured after exposure to 10 μg/L of the antimicrobials, both in combination and individually. The presence of ciprofloxacin and climbazole did not affect BOD compared to the controls at the urban site, although significant differences were identified for select treatments at the rural site. In addition, the BOD of mixed-leaf biofilms was not significantly different from that of single species litter after exposure. Overall, exposure to 10 μg/L of the antimicrobials did not significantly impact community-level carbon processing by the leaf biofilms, and leaf mixtures did not result in increased biofilm BOD compared to single species leaves. The outcomes of this work demonstrate a need for further research for the understanding the effects of antimicrobials on rural streams to prevent unintended consequences to ecological processes and biota from future development, leaking septic systems, and wastewater spills.
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Affiliation(s)
- Rikke Jepsen
- Department of Geography and Environmental Systems, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA
| | - Ke He
- University of Maryland, Department of Chemical, Biochemical, and Environmental Engineering, Baltimore County, 1000 Hilltop Circle, Engineering 314, Baltimore, MD 21250, USA
| | - Lee Blaney
- University of Maryland, Department of Chemical, Biochemical, and Environmental Engineering, Baltimore County, 1000 Hilltop Circle, Engineering 314, Baltimore, MD 21250, USA
| | - Christopher Swan
- Department of Geography and Environmental Systems, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA.
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7
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Feckler A, Goedkoop W, Konschak M, Bundschuh R, Kenngott KGJ, Schulz R, Zubrod JP, Bundschuh M. History matters: Heterotrophic microbial community structure and function adapt to multiple stressors. GLOBAL CHANGE BIOLOGY 2018; 24:e402-e415. [PMID: 28787754 DOI: 10.1111/gcb.13859] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Accepted: 07/31/2017] [Indexed: 05/28/2023]
Abstract
Ecosystem functions in streams (e.g., microbially mediated leaf litter breakdown) are threatened globally by the predicted agricultural intensification and its expansion into pristine areas, which is associated with increasing use of fertilizers and pesticides. However, the ecological consequences may depend on the disturbance history of microbial communities. To test this, we assessed the effects of fungicides and nutrients (four levels each) on the structural and functional resilience of leaf-associated microbial communities with differing disturbance histories (pristine vs. previously disturbed) in a 2 × 4 × 4-factorial design (n = 6) over 21 days. Microbial leaf breakdown was assessed as a functional variable, whereas structural changes were characterized by the fungal community composition, species richness, biomass, and other factors. Leaf breakdown by the pristine microbial community was reduced by up to 30% upon fungicide exposure compared with controls, whereas the previously disturbed microbial community increased leaf breakdown by up to 85%. This significant difference in the functional response increased in magnitude with increasing nutrient concentrations. A pollution-induced community tolerance in the previously disturbed microbial community, which was dominated by a few species with high breakdown efficacies, may explain the maintained function under stress. Hence, the global pressure on pristine ecosystems by agricultural expansion is expected to cause a modification in the structure and function of heterotrophic microbial communities, with microbially mediated leaf litter breakdown likely becoming more stable over time as a consequence of fungal community adaptions.
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Affiliation(s)
- Alexander Feckler
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Willem Goedkoop
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Marco Konschak
- Institute for Environmental Sciences, University of Koblenz-Landau, Landau, Germany
| | - Rebecca Bundschuh
- Institute for Environmental Sciences, University of Koblenz-Landau, Landau, Germany
| | - Kilian G J Kenngott
- Institute for Environmental Sciences, University of Koblenz-Landau, Landau, Germany
| | - Ralf Schulz
- Institute for Environmental Sciences, University of Koblenz-Landau, Landau, Germany
| | - Jochen P Zubrod
- Institute for Environmental Sciences, University of Koblenz-Landau, Landau, Germany
| | - Mirco Bundschuh
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, Sweden
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8
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Feckler A, Goedkoop W, Zubrod JP, Schulz R, Bundschuh M. Exposure pathway-dependent effects of the fungicide epoxiconazole on a decomposer-detritivore system. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 571:992-1000. [PMID: 27450951 DOI: 10.1016/j.scitotenv.2016.07.088] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Revised: 07/12/2016] [Accepted: 07/13/2016] [Indexed: 06/06/2023]
Abstract
Shredders play a central role in the breakdown of leaf material in aquatic systems. These organisms and the ecological function they provide may, however, be affected by chemical stressors either as a consequence of direct waterborne exposure or through alterations in food-quality (indirect pathway). To unravel the biological relevance of these effect pathways, we applied a 2×2-factorial test design. Leaf material was microbially colonized for 10days in absence or presence of the fungicide epoxiconazole (15μg/L) and subsequently fed to the shredder Asellus aquaticus under exposure to epoxiconazole (15μg/L) or in fungicide-free medium over a 28-day period (n=40). Both effect pathways caused alterations in asselids' food processing, physiological fitness, and growth, although not always statistically significantly: assimilation either increased or remained at a similar level relative to the control suggesting compensatory behavior of A. aquaticus to cope with the enhanced energy demand for detoxification processes and decreased nutritional quality of the food. The latter was driven by lowered microbial biomasses and the altered composition of fatty acids associated with the leaf material. Even with increased assimilation, direct and indirect effects caused decreases in the growth and lipid (fatty acid) content of A. aquaticus with relative effect sizes between 10 and 40%. Moreover, the concentrations of two essential polyunsaturated fatty acids (i.e., arachidonic acid and eicosapentaenoic acid) were non-significantly reduced (up to ~15%) in asselids. This effect was, however, independent of the exposure pathway. Although waterborne effects were generally stronger than the diet-related effects, results suggest impaired functioning of A. aquaticus via both effect pathways.
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Affiliation(s)
- Alexander Feckler
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Box 7050, 75007 Uppsala, Sweden.
| | - Willem Goedkoop
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Box 7050, 75007 Uppsala, Sweden
| | - Jochen P Zubrod
- Institute for Environmental Sciences, University of Koblenz-Landau, 76829 Landau, Germany
| | - Ralf Schulz
- Institute for Environmental Sciences, University of Koblenz-Landau, 76829 Landau, Germany
| | - Mirco Bundschuh
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Box 7050, 75007 Uppsala, Sweden; Institute for Environmental Sciences, University of Koblenz-Landau, 76829 Landau, Germany
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