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Grzesiuk M, Grabska M, Pawelec A. Fluoxetine may interfere with learning in fish. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2024; 105:104358. [PMID: 38154759 DOI: 10.1016/j.etap.2023.104358] [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: 07/29/2023] [Accepted: 12/25/2023] [Indexed: 12/30/2023]
Abstract
Our study aimed to test whether fluoxetine impairs learning in fish and whether this potential impairment is reversible. Learning efficiency, with no aversive stimuli, of the Carassius carassius was analysed under different pharmaceutical conditions: (i) fish cultured without antidepressant (control), (ii) fish exposed to fluoxetine for 21 days (fluoxetine), and (iii) fish exposed to fluoxetine for 21 days and then cultured without fluoxetine for another 21 days (recovery). We exposed animals to environmental concentrations (360 ng L-1) of antidepressant. The learning rate was measured by timing how long it took the individual fish to find food and start feeding, six days in a row. The control and recovery fish took significantly less time to start eating over the six days. Control fish start eating 14 times faster than the fluoxetine fish. Fluoxetine can significantly affect learning and 21-day recovery period is not enough to fully restore the original learning abilities.
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Affiliation(s)
- Malgorzata Grzesiuk
- Department of Biochemistry and Microbiology, Institute of Biology, Warsaw University of Life Sciences (SGGW), Warsaw, Poland.
| | - Marta Grabska
- Department of Biochemistry and Microbiology, Institute of Biology, Warsaw University of Life Sciences (SGGW), Warsaw, Poland
| | - Alicja Pawelec
- Department of Hydrobiology, Institute of Functional Biology and Ecology, Faculty of Biology, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
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2
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Thoré ESJ, Aulsebrook AE, Brand JA, Almeida RA, Brodin T, Bertram MG. Time is of the essence: The importance of considering biological rhythms in an increasingly polluted world. PLoS Biol 2024; 22:e3002478. [PMID: 38289905 PMCID: PMC10826942 DOI: 10.1371/journal.pbio.3002478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024] Open
Abstract
Biological rhythms have a crucial role in shaping the biology and ecology of organisms. Light pollution is known to disrupt these rhythms, and evidence is emerging that chemical pollutants can cause similar disruption. Conversely, biological rhythms can influence the effects and toxicity of chemicals. Thus, by drawing insights from the extensive study of biological rhythms in biomedical and light pollution research, we can greatly improve our understanding of chemical pollution. This Essay advocates for the integration of biological rhythmicity into chemical pollution research to gain a more comprehensive understanding of how chemical pollutants affect wildlife and ecosystems. Despite historical barriers, recent experimental and technological advancements now facilitate the integration of biological rhythms into ecotoxicology, offering unprecedented, high-resolution data across spatiotemporal scales. Recognizing the importance of biological rhythms will be essential for understanding, predicting, and mitigating the complex ecological repercussions of chemical pollution.
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Affiliation(s)
- Eli S. J. Thoré
- Department of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden
- TRANSfarm—Science, Engineering, & Technology Group, KU Leuven, Lovenjoel, Belgium
- Department of Zoology, Stockholm University, Stockholm, Sweden
| | - Anne E. Aulsebrook
- Department of Ornithology, Max Planck Institute for Biological Intelligence, Seewiesen, Germany
| | - Jack A. Brand
- Department of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden
- Institute of Zoology, Zoological Society of London, London, United Kingdom
| | - Rafaela A. Almeida
- Laboratory of Aquatic Ecology, Evolution, and Conservation, Department of Biology, KU Leuven, Leuven, Belgium
| | - Tomas Brodin
- Department of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Michael G. Bertram
- Department of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden
- Department of Zoology, Stockholm University, Stockholm, Sweden
- School of Biological Sciences, Monash University, Melbourne, Australia
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3
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Al Shuraiqi A, Abed RMM, Al-Habsi A, Barry MJ. Personality Affects Zebrafish Response to Sertraline. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2024; 43:132-146. [PMID: 37861374 DOI: 10.1002/etc.5769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 09/06/2023] [Accepted: 10/16/2023] [Indexed: 10/21/2023]
Abstract
Sertraline is widely prescribed to treat anxiety and depression. Sertraline acts by blocking serotonin, norepinephrine, and dopamine transporters systems and has been detected in surface waters globally, where it may impact fish behavior. We classified zebrafish personality on three behavioral axes, boldness, anxiety, and sociability, assigning fish as either high or low in each category. The fish were exposed to nominal concentrations of 0, 5, 50, 500, or 5000 ng/L sertraline (measured concentrations: <10, 21.3, 370, and 2200 ng/L, respectively) to assess changes in boldness, anxiety, and sociability after 7 and 28 days. We also measured shoaling behavior and response to an alarm cue, and determined the gut microbiome of a subset of fish. After 7 days there was no overall effect of sertraline on boldness, but there was an interaction between initial personality and sex, with a stronger impact on females classified as low-boldness personality. Sertraline reduced sociability in all treatments compared with the control, but there was again an interaction between sertraline and initial personality. Fish that were classified as low-sociability responded more strongly to sertraline. After 7 days, fish exposed to a nominal concentration of 5000 ng/L (2200 ng/L measured) showed higher anxiety than controls, with the overall pattern of initial behavior retained. After 28 days, similar patterns were observed, but with higher variation. There was only a weak association between the gut microbiome and personality. Overall, the study highlights the importance of considering initial behavior, which can affect response to pollutants. Our results may also be applicable to human studies and provide a mechanism to explain why different individuals respond differently to the drug. Environ Toxicol Chem 2024;43:132-146. © 2023 SETAC.
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Affiliation(s)
| | - Raeid M M Abed
- Biology Department, Sultan Qaboos University, Muscat, Oman
| | - Aziz Al-Habsi
- Biology Department, Sultan Qaboos University, Muscat, Oman
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4
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Hubená P, Horký P, Grabic R, Grabicová K, Douda K, Slavík O, Randák T. Aggression repeatability in stressed fish in response to an environmental concentration of sertraline and lunar cycle as evidenced by brain metabolomics. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 264:106707. [PMID: 37806025 DOI: 10.1016/j.aquatox.2023.106707] [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: 05/29/2023] [Revised: 09/18/2023] [Accepted: 09/24/2023] [Indexed: 10/10/2023]
Abstract
Sertraline is an environmental pollutant which received magnified scientific attention due to its global presence in waters. Adverse effects on feeding, reproduction and other traits were observed mostly in unstressed aquatic organisms. Chronic stress, however, induces significant physiological changes, and the effects of sertraline in stressed fish may differ from those observed in non-stressed individuals. The current laboratory study addresses this gap by repeatedly monitoring the individual aggression of chronically stressed juvenile chub (Squalius cephalus L.) using the non-reversing mirror test at an environmental sertraline concentration of 0.022 g/L every three to four days for a period of 39 days. Specifically, it was hypothesized that the level and repeatability of aggressiveness would be (i) correlated with the concentration of sertraline/norsertraline in the fish brain; (ii) linked to the individual brain metabolomic profile described by LC-HRMS analyses; (iii) related to the lunar cycle. Sertraline led to an increase in fish aggression and more repeatable/consistent behaviour compared to control fish. While the level of sertraline in the brain did not correlate with aggressiveness, aggressive responses increased with higher norsertraline concentration. The observed aggressive behaviour also varied depending on the individual metabolomic profile of the brain. The behavioural outcome and metabolic change in fish brain may indicate that sertraline has demonstrated neuroprotective effects by reducing cortisol release. It is possible that fish exposed to sertraline could suffer a blunted stress response under the chronic stressors in the wild. Aggressiveness of both treatments evolved in time, revealing a sinusoid-like pattern corresponding to a lunar cycle with a peak of the aggressiveness during the new moon. There is a need for future studies to focus on this relationship to reveal its details and general validity. Our results emphasize that long-term behavioural variability should generally be taken into account in laboratory behavioural studies.
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Affiliation(s)
- Pavla Hubená
- Czech University of Life Sciences Prague, Department of Zoology and Fisheries, Kamýcká 129, 165 00 Praha 6 Suchdol, Czech Republic; Uppsala University, Uppsala Biomedical Centre, Department of Medical Cell Biology, Husargatan 3, 751 23 Uppsala, Sweden.
| | - Pavel Horký
- Czech University of Life Sciences Prague, Department of Zoology and Fisheries, Kamýcká 129, 165 00 Praha 6 Suchdol, Czech Republic
| | - Roman Grabic
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728/II, 398 25 Vodňany, Czech Republic
| | - Kateřina Grabicová
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728/II, 398 25 Vodňany, Czech Republic
| | - Karel Douda
- Czech University of Life Sciences Prague, Department of Zoology and Fisheries, Kamýcká 129, 165 00 Praha 6 Suchdol, Czech Republic
| | - Ondřej Slavík
- Czech University of Life Sciences Prague, Department of Zoology and Fisheries, Kamýcká 129, 165 00 Praha 6 Suchdol, Czech Republic
| | - Tomáš Randák
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728/II, 398 25 Vodňany, Czech Republic
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5
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Thoré ESJ, Vanden Berghen B, Brendonck L, Pinceel T. Long-term exposure to a pharmaceutical pollutant affects geotaxic behaviour in the adult but not juvenile life stage of killifish. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 876:162746. [PMID: 36907389 DOI: 10.1016/j.scitotenv.2023.162746] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/17/2023] [Accepted: 03/05/2023] [Indexed: 06/18/2023]
Abstract
Ecosystems around the world are increasingly polluted with pharmaceutical compounds that may perturb wildlife behaviour. Because many pharmaceuticals are continuously present in the aquatic environment, animals are often exposed to them across several life stages or even their entire life. Despite a large body of literature showing various impacts of exposure to pharmaceuticals on fish, hardly any long-term studies across different life stages have been conducted which makes it hard to accurately estimate the ecological outcomes of pharmaceutical pollution. Here, we performed a laboratory experiment in which we exposed hatchlings of the fish model Nothobranchius furzeri to an environmentally relevant concentration (0.5 μg/L) of the antidepressant fluoxetine until well into adulthood. We monitored total body length and geotaxic behaviour (i.e. gravity-mediated activity) of each fish as two traits that are ecologically relevant and naturally differ between juvenile and adult killifish. Fish exposed to fluoxetine were smaller compared to control fish, an effect that became more apparent as fish aged. Even though fluoxetine did not affect average swimming depth of either juveniles or adults, nor the time spent at the surface or bottom of the water column, exposed fish changed their position in the water column (depth) more frequently in the adult but not juvenile phase. These results suggest that important morphological and behavioural responses to pharmaceutical exposure-and their potential ecological consequences-may only emerge later in time and/or during specific life stages. Therefore, our results highlight the importance of considering ecologically relevant timescales across developmental stages when studying the ecotoxicology of pharmaceuticals.
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Affiliation(s)
- Eli S J Thoré
- Animal Ecology, Global Change and Sustainable Development, KU Leuven, Leuven, Belgium; TRANSfarm - Science, Engineering & Technology Group, KU Leuven, Lovenjoel, Belgium.
| | - Birgit Vanden Berghen
- Animal Ecology, Global Change and Sustainable Development, KU Leuven, Leuven, Belgium
| | - Luc Brendonck
- Animal Ecology, Global Change and Sustainable Development, KU Leuven, Leuven, Belgium; Water Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
| | - Tom Pinceel
- Animal Ecology, Global Change and Sustainable Development, KU Leuven, Leuven, Belgium; Centre for Environmental Management, University of the Free State, Bloemfontein, South Africa
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6
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Tan H, Martin JM, Alton LA, Lesku JA, Wong BBM. Widespread psychoactive pollutant augments daytime restfulness and disrupts diurnal activity rhythms in fish. CHEMOSPHERE 2023; 326:138446. [PMID: 36940830 DOI: 10.1016/j.chemosphere.2023.138446] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/13/2023] [Accepted: 03/17/2023] [Indexed: 06/18/2023]
Abstract
Pharmaceutical pollution is a major driver of global change, with the capacity to alter key behavioural and physiological traits in exposed animals. Antidepressants are among the most commonly detected pharmaceuticals in the environment. Despite well-documented pharmacological effects of antidepressants on sleep in humans and other vertebrates, very little is known about their ecologically relevant impacts as pollutants on non-target wildlife. Accordingly, we investigated the effects of acute 3-day exposure of eastern mosquitofish (Gambusia holbrooki) to field-realistic levels (nominal concentrations: 30 and 300 ng/L) of the widespread psychoactive pollutant, fluoxetine, on diurnal activity patterns and restfulness, as indicators of disruptions to sleep. We show that exposure to fluoxetine disrupted diel activity patterns, which was driven by augmentation of daytime inactivity. Specifically, unexposed control fish were markedly diurnal, swimming farther during the day and exhibiting longer periods and more bouts of inactivity at night. However, in fluoxetine-exposed fish, this natural diel rhythm was eroded, with no differences in activity or restfulness observed between the day and night. As a misalignment in the circadian rhythm has been shown to adversely affect fecundity and lifespan in animals, our findings reveal a potentially serious threat to the survival and reproductive success of pollutant-exposed wildlife.
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Affiliation(s)
- Hung Tan
- School of Biological Sciences, Monash University, Melbourne, Australia.
| | - Jake M Martin
- School of Biological Sciences, Monash University, Melbourne, Australia; Department of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden; Department of Zoology, Stockholm University, Stockholm, Sweden
| | - Lesley A Alton
- School of Biological Sciences, Monash University, Melbourne, Australia
| | - John A Lesku
- School of Agriculture, Biomedicine and Environment, La Trobe University, Melbourne, Australia; Research Centre for Future Landscapes, La Trobe University, Melbourne, Australia
| | - Bob B M Wong
- School of Biological Sciences, Monash University, Melbourne, Australia
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7
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Thoré ESJ, Merckx W. Substrate colour guides turquoise killifish's (Nothobranchius furzeri) choice of preferred spawning habitat. JOURNAL OF FISH BIOLOGY 2023; 102:1434-1441. [PMID: 37009851 DOI: 10.1111/jfb.15392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 03/31/2023] [Indexed: 06/09/2023]
Abstract
Turquoise killifish (Nothobranchius furzeri) is a promising new model species used in biomedical and ecological laboratory experiments, and should be kept under optimal conditions to ensure fish welfare and the quality of science. While the popularity of this model species is rapidly increasing, we need to improve our understanding of how the species interacts with its environment to optimize its husbandry. Specifically, turquoise killifish are substrate spawners that bury their eggs in the sediment, which can be accommodated under captive conditions, but it is not yet known whether or not turquoise killifish have a preference for a specific sediment colour. Here, we performed a laboratory experiment in which fish could choose between white, orange and black sand for spawning, colours which are relevant in both laboratory and field conditions. We assessed their preference in the context of single breeding pairs, as well as in a social group setting. Additionally, we also assessed the preference of individuals for a white versus black background in a nonmating context. Single breeding pairs deposited over 3.5 times more eggs in black compared to orange or white sand. Similarly, fish in social groups deposited over 3.5 times more eggs in black compared to orange sand, which in turn was over two times higher than that in white sand. Fish showed a slight preference for the black compared to the white zone in a nonmating context, but this did not correlate with substrate choice during the spawning tests. The results suggest that turquoise killifish select their preferred spawning location based on the colour of the substrate. These findings contribute to our understanding of the species' biology and can help to guide good welfare and scientific practice.
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Affiliation(s)
- Eli S J Thoré
- TRANSfarm - Science, Engineering & Technology Group, Leuven, Belgium
- Laboratory of Animal Ecology, Global Change and Sustainable Development, Leuven, Belgium
- Department of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Wouter Merckx
- TRANSfarm - Science, Engineering & Technology Group, Leuven, Belgium
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8
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Pintos S, Lucon-Xiccato T, Vera LM, Bertolucci C. Daily rhythms in the behavioural stress response of the zebrafish Danio rerio. Physiol Behav 2023; 268:114241. [PMID: 37201692 DOI: 10.1016/j.physbeh.2023.114241] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/05/2023] [Accepted: 05/15/2023] [Indexed: 05/20/2023]
Abstract
In nature, animals are exposed to stressors that occur with different likelihood throughout the day, such as risk of predation and human disturbance. Hence, the stress response is expected to vary plastically to adaptively match these challenges. Several studies have supported this hypothesis in a wide range of vertebrate species, including some teleost fish, mostly through evidence of circadian variation in physiology. However, in teleost fish, circadian variation in behavioural stress responses is less understood. Here, we investigated the daily rhythm of stress response at the behavioural level in the zebrafish Danio rerio. We exposed individuals and shoals to an open field test every 4h over a 24h cycle, recording three behavioural indicators of stress and anxiety levels in novel environments (thigmotaxis, activity and freezing). Thigmotaxis and activity significantly varied throughout the day with a similar pattern, in line with a stronger stress response in the night phase. The same was suggested by analysis of freezing in shoals, but not in individual fish, in which variation appeared mostly driven by a single peak in the light phase. In a control experiment, we observed a set of subjects after familiarisation with the open-field apparatus. This experiment indicated that activity and freezing might present a daily rhythmicity that is unrelated to environmental novelty, and thus to stress responses. However, the thigmotaxis was constant through the day in the control condition, suggesting that the daily variation of this indicator is mostly attributable to the stress response. Overall, this research indicates that behavioural stress response of zebrafish does follow a daily rhythm, although this may be masked using behavioural indicators other than thigmotaxis. This rhythmicity can be relevant to improve welfare in aquaculture and reliability of behavioural research in fish models.
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Affiliation(s)
- Santiago Pintos
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy.
| | - Tyrone Lucon-Xiccato
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy
| | - Luisa María Vera
- Department of Physiology, Faculty of Biology, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30100 Murcia, Spain
| | - Cristiano Bertolucci
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy
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Słoczyńska K, Orzeł J, Murzyn A, Popiół J, Gunia-Krzyżak A, Koczurkiewicz-Adamczyk P, Pękala E. Antidepressant pharmaceuticals in aquatic systems, individual-level ecotoxicological effects: growth, survival and behavior. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 260:106554. [PMID: 37167880 DOI: 10.1016/j.aquatox.2023.106554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 04/18/2023] [Accepted: 05/05/2023] [Indexed: 05/13/2023]
Abstract
The growing consumption of antidepressant pharmaceuticals has resulted in their widespread occurrence in the environment, particularly in waterways with a typical concentration range from ng L-1 to μg L-1. An increasing number of studies have confirmed the ecotoxic potency of antidepressants, not only at high concentrations but also at environmentally relevant levels. The present review covers literature from the last decade on the individual-level ecotoxicological effects of the most commonly used antidepressants, including their impact on behavior, growth, and survival. We focus on the relationship between antidepressants physico-chemical properties and dynamics in the environment. Furthermore, we discuss the advantages of considering behavioral changes as sensitive endpoints in ecotoxicology, as well as some current methodological shortcomings in the field, including low standardization, reproducibility and context-dependency.
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Affiliation(s)
- Karolina Słoczyńska
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland.
| | - Justyna Orzeł
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Aleksandra Murzyn
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Justyna Popiół
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Agnieszka Gunia-Krzyżak
- Department of Bioorganic Chemistry, Chair of Organic Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Paulina Koczurkiewicz-Adamczyk
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Elżbieta Pękala
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
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10
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Estela SLB, Carolina MT, Manuel MA. The daily locomotor activity profile of Zebrafish Danio rerio is affected when exposed to polluted water from Lerma River (Guanajuato, Mexico). BIOL RHYTHM RES 2023. [DOI: 10.1080/09291016.2023.2196467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Affiliation(s)
- Sánchez-López Blanca Estela
- Unidad Multidisciplinaria de Docencia e Investigación, Facultad de Ciencias, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, Mexico
| | - Muñoz-Torres Carolina
- Centro de Geociencias, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, Mexico
| | - Miranda-Anaya Manuel
- Unidad Multidisciplinaria de Docencia e Investigación, Facultad de Ciencias, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, Mexico
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11
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Grzesiuk M, Gryglewicz E, Bentkowski P, Pijanowska J. Impact of Fluoxetine on Herbivorous Zooplankton and Planktivorous Fish. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2023; 42:385-392. [PMID: 36377689 PMCID: PMC10107138 DOI: 10.1002/etc.5525] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/05/2022] [Accepted: 11/12/2022] [Indexed: 06/16/2023]
Abstract
The contamination of freshwater environments by pharmaceuticals is a growing problem. Modern healthcare uses nearly 3000 substances, many of which are designed to work at low dosages and act on physiological systems that have been evolutionarily conserved across taxa. Because drugs affect the organisms from different trophic levels, pharmaceutical pollution is likely to disturb species interactions. However, such effects are still only poorly understood. We investigated the impacts of environmentally relevant concentrations of the common drug fluoxetine (Prozac), an increasingly common contaminant of European waters, on predation behavior of crucian carp (Carassius carassius), a common planktivorous European fish, and the somatic growth of its prey, the water flea (Daphnia magna), a widespread planktonic crustacean. We exposed these two organisms to environmentally relevant levels of fluoxetine (360 ng L-1 ): the fish for 4 weeks and the water fleas for two generations. We tested the growth of the daphnids and the hunting behavior (reaction distance at which fish attacked Daphnia and feeding rate) of the fish under drug contamination. We found that Daphnia exposed to fluoxetine grew larger than a nonexposed cohort. The hunting behavior of C. carassius was altered when they were exposed to the drug; the reaction distance was shorter, and the feeding rate was slower. These effects occurred regardless of Daphnia size and the treatment regime they were subjected to. Our results suggest that contamination of freshwater environments with fluoxetine can disrupt the top-down ecological control of herbivores by reducing the hunting efficiency of fish and, as a consequence, may lead to increases in cladoceran population numbers. Environ Toxicol Chem 2023;42:385-392. © 2022 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.
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Affiliation(s)
- Malgorzata Grzesiuk
- Department of Hydrobiology, Faculty of BiologyUniversity of WarsawWarsawPoland
- Department of Biochemistry and Microbiology, Institute of BiologyWarsaw University of Life SciencesWarsawPoland
| | - Eva Gryglewicz
- Department of Hydrobiology, Faculty of BiologyUniversity of WarsawWarsawPoland
- tier3 SolutionsLeverkusenGermany
| | - Piotr Bentkowski
- Department of Hydrobiology, Faculty of BiologyUniversity of WarsawWarsawPoland
- Faculty of “Artes Liberales”University of WarsawWarsawPoland
| | - Joanna Pijanowska
- Department of Hydrobiology, Faculty of BiologyUniversity of WarsawWarsawPoland
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Philippe C, Thoré ESJ, Verbesselt S, Grégoir AF, Brendonck L, Pinceel T. Combined effects of global warming and chlorpyrifos exposure on the annual fish Nothobranchius furzeri. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 248:114290. [PMID: 36403300 DOI: 10.1016/j.ecoenv.2022.114290] [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: 07/18/2022] [Revised: 11/10/2022] [Accepted: 11/10/2022] [Indexed: 06/16/2023]
Abstract
Global warming and environmental pollution threaten aquatic ecosystems. While interactive effects between both stressors can have more than additive consequences, these remain poorly studied for most taxa. Especially chronic exposure trials with vertebrates are scarce due to the high time- and monetary costs of such studies. We use the recently-established fish model Nothobranchius furzeri to assess the separate and combined effects of exposure to the pesticide chlorpyrifos (at 2 µg/L and 4 µg/L) and a 2 °C temperature increase. We performed a full life-cycle assessment to evaluate fitness-related endpoints including survival, total body length, maturation time, fecundity, critical thermal maximum (CTmax) and locomotor activity. Exposure to 4 µg/L chlorpyrifos slowed down male maturation, reduced fecundity and impaired growth of the fish. While the temperature increase did not affect any of the measured endpoints on its own, the combination of exposure to 2 µg/L CPF with an increase of 2 °C reduced growth and severely reduced fecundity, with almost no offspring production. Together, these findings suggest that climate change may exacerbate the impact of environmental pollution, and that interactive effects of chronic exposure to multiple stressors should be considered to predict how populations will be affected by ongoing global change.
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Affiliation(s)
- Charlotte Philippe
- Animal Ecology, Global Change and Sustainable Development, University of Leuven, Ch. Deberiotstraat 32, B-3000 Leuven, Belgium.
| | - Eli S J Thoré
- Animal Ecology, Global Change and Sustainable Development, University of Leuven, Ch. Deberiotstraat 32, B-3000 Leuven, Belgium
| | - Sebastiaan Verbesselt
- Flanders Research Institute for Agriculture, Fisheries and Food, Burgemeester Van Gansberghelaan 92 box 1 9820 Merelbeke, Belgium
| | - Arnout F Grégoir
- Animal Ecology, Global Change and Sustainable Development, University of Leuven, Ch. Deberiotstraat 32, B-3000 Leuven, Belgium
| | - Luc Brendonck
- Animal Ecology, Global Change and Sustainable Development, University of Leuven, Ch. Deberiotstraat 32, B-3000 Leuven, Belgium; Water Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
| | - Tom Pinceel
- Animal Ecology, Global Change and Sustainable Development, University of Leuven, Ch. Deberiotstraat 32, B-3000 Leuven, Belgium; Centre for Environmental Management, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa; PMC Coasts Rivers and Cities, Witteveen + Bos, Posthoflei 5, B-2600 Berchem, Belgium
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13
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Bertram MG, Martin JM, McCallum ES, Alton LA, Brand JA, Brooks BW, Cerveny D, Fick J, Ford AT, Hellström G, Michelangeli M, Nakagawa S, Polverino G, Saaristo M, Sih A, Tan H, Tyler CR, Wong BB, Brodin T. Frontiers in quantifying wildlife behavioural responses to chemical pollution. Biol Rev Camb Philos Soc 2022; 97:1346-1364. [PMID: 35233915 PMCID: PMC9543409 DOI: 10.1111/brv.12844] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 02/13/2022] [Accepted: 02/16/2022] [Indexed: 12/26/2022]
Abstract
Animal behaviour is remarkably sensitive to disruption by chemical pollution, with widespread implications for ecological and evolutionary processes in contaminated wildlife populations. However, conventional approaches applied to study the impacts of chemical pollutants on wildlife behaviour seldom address the complexity of natural environments in which contamination occurs. The aim of this review is to guide the rapidly developing field of behavioural ecotoxicology towards increased environmental realism, ecological complexity, and mechanistic understanding. We identify research areas in ecology that to date have been largely overlooked within behavioural ecotoxicology but which promise to yield valuable insights, including within- and among-individual variation, social networks and collective behaviour, and multi-stressor interactions. Further, we feature methodological and technological innovations that enable the collection of data on pollutant-induced behavioural changes at an unprecedented resolution and scale in the laboratory and the field. In an era of rapid environmental change, there is an urgent need to advance our understanding of the real-world impacts of chemical pollution on wildlife behaviour. This review therefore provides a roadmap of the major outstanding questions in behavioural ecotoxicology and highlights the need for increased cross-talk with other disciplines in order to find the answers.
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Affiliation(s)
- Michael G. Bertram
- Department of Wildlife, Fish, and Environmental StudiesSwedish University of Agricultural SciencesSkogsmarksgränd 17UmeåVästerbottenSE‐907 36Sweden
| | - Jake M. Martin
- School of Biological SciencesMonash University25 Rainforest WalkMelbourneVictoria3800Australia
| | - Erin S. McCallum
- Department of Wildlife, Fish, and Environmental StudiesSwedish University of Agricultural SciencesSkogsmarksgränd 17UmeåVästerbottenSE‐907 36Sweden
| | - Lesley A. Alton
- School of Biological SciencesMonash University25 Rainforest WalkMelbourneVictoria3800Australia
| | - Jack A. Brand
- School of Biological SciencesMonash University25 Rainforest WalkMelbourneVictoria3800Australia
| | - Bryan W. Brooks
- Department of Environmental ScienceBaylor UniversityOne Bear PlaceWacoTexas76798‐7266U.S.A.
| | - Daniel Cerveny
- Department of Wildlife, Fish, and Environmental StudiesSwedish University of Agricultural SciencesSkogsmarksgränd 17UmeåVästerbottenSE‐907 36Sweden
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of HydrocenosesUniversity of South Bohemia in Ceske BudejoviceZátiší 728/IIVodnany389 25Czech Republic
| | - Jerker Fick
- Department of ChemistryUmeå UniversityLinnaeus väg 10UmeåVästerbottenSE‐907 36Sweden
| | - Alex T. Ford
- Institute of Marine SciencesUniversity of PortsmouthWinston Churchill Avenue, PortsmouthHampshirePO1 2UPU.K.
| | - Gustav Hellström
- Department of Wildlife, Fish, and Environmental StudiesSwedish University of Agricultural SciencesSkogsmarksgränd 17UmeåVästerbottenSE‐907 36Sweden
| | - Marcus Michelangeli
- Department of Wildlife, Fish, and Environmental StudiesSwedish University of Agricultural SciencesSkogsmarksgränd 17UmeåVästerbottenSE‐907 36Sweden
- Department of Environmental Science and PolicyUniversity of California350 E Quad, DavisCaliforniaCA95616U.S.A.
| | - Shinichi Nakagawa
- Evolution & Ecology Research Centre, School of Biological, Earth and Environmental SciencesUniversity of New South Wales, Biological Sciences West (D26)SydneyNSW2052Australia
| | - Giovanni Polverino
- School of Biological SciencesMonash University25 Rainforest WalkMelbourneVictoria3800Australia
- Centre for Evolutionary Biology, School of Biological SciencesUniversity of Western Australia35 Stirling HighwayPerthWA6009Australia
- Department of Ecological and Biological SciencesTuscia UniversityVia S.M. in Gradi n.4ViterboLazio01100Italy
| | - Minna Saaristo
- Environment Protection Authority VictoriaEPA Science2 Terrace WayMacleodVictoria3085Australia
| | - Andrew Sih
- Department of Environmental Science and PolicyUniversity of California350 E Quad, DavisCaliforniaCA95616U.S.A.
| | - Hung Tan
- School of Biological SciencesMonash University25 Rainforest WalkMelbourneVictoria3800Australia
| | - Charles R. Tyler
- Biosciences, College of Life and Environmental SciencesUniversity of ExeterStocker RoadExeterDevonEX4 4QDU.K.
| | - Bob B.M. Wong
- School of Biological SciencesMonash University25 Rainforest WalkMelbourneVictoria3800Australia
| | - Tomas Brodin
- Department of Wildlife, Fish, and Environmental StudiesSwedish University of Agricultural SciencesSkogsmarksgränd 17UmeåVästerbottenSE‐907 36Sweden
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14
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Age-Related Alterations in the Behavior and Serotonin-Related Gene mRNA Levels in the Brain of Males and Females of Short-Lived Turquoise Killifish ( Nothobranchius furzeri). Biomolecules 2021; 11:biom11101421. [PMID: 34680051 PMCID: PMC8533623 DOI: 10.3390/biom11101421] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/17/2021] [Accepted: 09/25/2021] [Indexed: 11/16/2022] Open
Abstract
Short-lived turquoise killifish (Nothobranchius furzeri) have become a popular model organism for neuroscience. In the present paper we study for the first time their behavior in the novel tank diving test and the levels of mRNA of various 5-HT-related genes in brains of 2-, 4- and 6-month-old males and females of N. furzeri. The marked effect of age on body mass, locomotor activity and the mRNA level of Tph1b, Tph2, Slc6a4b, Mao, Htr1aa, Htr2a, Htr3a, Htr3b, Htr4, Htr6 genes in the brains of N. furzeri males was shown. Locomotor activity and expression of the Mao gene increased, while expression of Tph1b, Tph2, Slc6a4b, Htr1aa, Htr2a, Htr3a, Htr3b, Htr4, Htr6 genes decreased in 6-month-old killifish. Significant effects of sex on body mass as well as on mRNA level of Tph1a, Tph1b, Tph2, Slc6a4b, Htr1aa, 5-HT2a, Htr3a, Htr3b, Htr4, and Htr6 genes were revealed: in general both the body mass and the expression of these genes were higher in males. N. furzeri is a suitable model with which to study the fundamental problems of age-related alterations in various mRNA levels related with the brains 5-HT system.
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15
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Thoré ESJ, Brendonck L, Pinceel T. Neurochemical exposure disrupts sex-specific trade-offs between body length and behaviour in a freshwater crustacean. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2021; 237:105877. [PMID: 34090246 DOI: 10.1016/j.aquatox.2021.105877] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 05/13/2021] [Accepted: 05/21/2021] [Indexed: 06/12/2023]
Abstract
Ongoing pollution of aquatic ecosystems with neurochemical compounds warrants an improved understanding of how this affects key organisms. Neurochemicals are shown to alter the behaviour of common study species but it remains difficult to translate these results to biologically meaningful predictions across taxa. This is partly because studies on species with non-generic life-history strategies such as many freshwater crustaceans are currently underrepresented. Here, we use a laboratory experiment to assess baseline behavioural variation (spontaneous activity level and geotaxic behaviour) in the freshwater fairy shrimp Branchipodopsis wolfi and how this is affected by chronic exposure to an environmentally-relevant concentration of the anxiolytic pharmaceutical fluoxetine. The more conspicuously coloured and larger females of the species were overall less active and more benthic than males. Moreover, amongst females, vertical activity was negatively associated with size, while an opposite relationship was found for males. These trade-offs are likely part of an antipredator strategy to reduce the probability of being detected by visual hunters, but disappeared after exposure to fluoxetine. This is of particular interest since it is an effective proof of principle that neurochemicals may impact ecologically-relevant trade-offs between conspicuous morphology and antipredator behaviour. In natural ecosystems, such disturbed antipredator behavioural responses could have far-reaching fitness consequences.
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Affiliation(s)
- Eli S J Thoré
- Animal Ecology, Global Change and Sustainable Development, KU Leuven, Leuven, Belgium.
| | - Luc Brendonck
- Animal Ecology, Global Change and Sustainable Development, KU Leuven, Leuven, Belgium; Water Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
| | - Tom Pinceel
- Animal Ecology, Global Change and Sustainable Development, KU Leuven, Leuven, Belgium; Centre for Environmental Management, University of the Free State, Bloemfontein, South Africa
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16
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Evsiukova V, Antonov E, Kulikov AV. Effects of Sex and Group Size on Behavior and Brain Biogenic Amines in Short-Lived Turquoise Killifish ( Nothobranchius furzeri). Zebrafish 2021; 18:265-273. [PMID: 34324391 DOI: 10.1089/zeb.2021.0001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Short-lived turquoise killifish (Nothobranchius furzeri) becomes a popular model species for neuroscience. However, the effects of sex and rearing conditions on behavior and brain monoamines in N. furzeri are unknown. In this article, we study the body mass, behavior in the novel tank diving test, levels of noradrenaline (NA), dopamine (DA), serotonin (5-HT), 3,4-dihydroxyphenylacetic acid (DOPAC), and 5-hydroxyindoleacetic acid (5-HIAA) in the brain of 108 day-old N. furzeri males and females reared in small (one male and one or two females in 4-L tanks) and large (four males and four females in 25-L tanks) groups. Males were heavier and had a lower NA level in the brain compared with females. The behavior of males and females did not differ in the novel tank diving test. Their DA, 5-HT, DOPAC, and 5-HIAA levels in the brain did not differ too. Males from small groups spent more time near the tank's bottom. Rearing in small groups reduced the DA level in the female brain and the DOPAC level in female and male brains. However, group size did not affect body mass, 5-HT and 5-HIAA levels in the brain. Thus, group size is important for behavior and neuroscience studies of N. furzeri.
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Affiliation(s)
- Valentina Evsiukova
- Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia.,Novosibirsk State University, Novosibirsk, Russia
| | - Egor Antonov
- Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia
| | - Alexander V Kulikov
- Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia
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