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Gokso Yr SØ, Yadetie F, Johansen CT, Jacobsen RG, Lille-Lango Y R, Gokso Yr A, Karlsen OA. Interaction of Bisphenol A and Its Analogs with Estrogen and Androgen Receptor from Atlantic Cod ( Gadus morhua). ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:14098-14109. [PMID: 39087390 PMCID: PMC11325555 DOI: 10.1021/acs.est.4c01500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
The widespread use of bisphenol A (BPA) in polycarbonate plastics and epoxy resins has made it a prevalent environmental pollutant in aquatic ecosystems. BPA poses a significant threat to marine and freshwater wildlife due to its documented endocrine-disrupting effects on various species. Manufacturers are increasingly turning to other bisphenol compounds as supposedly safer alternatives. In this study, we employed in vitro reporter gene assays and ex vivo precision-cut liver slices from Atlantic cod (Gadus morhua) to investigate whether BPA and 11 BPA analogs exhibit estrogenic, antiestrogenic, androgenic, or antiandrogenic effects by influencing estrogen or androgen receptor signaling pathways. Most bisphenols, including BPA, displayed estrogenic properties by activating the Atlantic cod estrogen receptor alpha (gmEra). BPB, BPE, and BPF exhibited efficacy similar to or higher than that of BPA, with BPB and BPAF being more potent agonists. Additionally, some bisphenols, like BPG, induced estrogenic effects in ex vivo liver slices despite not activating gmEra in vitro, suggesting structural modifications by hepatic biotransformation enzymes. While only BPC2 and BPAF activated the Atlantic cod androgen receptor alpha (gmAra), several bisphenols exhibited antiandrogenic effects by inhibiting gmAra activity. This study underscores the endocrine-disrupting impact of bisphenols on aquatic organisms, emphasizing that substitutes for BPA may pose equal or greater risks to both the environment and human health.
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Affiliation(s)
| | - Fekadu Yadetie
- Department of Biological Sciences, University of Bergen, Bergen N-5020, Norway
| | | | | | - Roger Lille-Lango Y
- Department of Biological Sciences, University of Bergen, Bergen N-5020, Norway
| | - Anders Gokso Yr
- Department of Biological Sciences, University of Bergen, Bergen N-5020, Norway
| | - Odd André Karlsen
- Department of Biological Sciences, University of Bergen, Bergen N-5020, Norway
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Furness LH, Kersten O, Boilard A, Keith-Diagne L, Brito C, Barrett JH, Kitchener A, Sabin R, Lavery S, Plön S, Star B. Population structure of Dugong dugon across the Indo-Pacific revealed by historical mitogenomes. ROYAL SOCIETY OPEN SCIENCE 2024; 11:240599. [PMID: 39113775 PMCID: PMC11304337 DOI: 10.1098/rsos.240599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/31/2024] [Accepted: 06/13/2024] [Indexed: 08/10/2024]
Abstract
Sirenia, an iconic marine taxon with a tropical and subtropical worldwide distribution, face an uncertain future. All species are designated 'Vulnerable' to extinction by the IUCN. Nonetheless, a comprehensive understanding of geographic structuring across the global range is lacking, impeding our ability to highlight particularly vulnerable populations for conservation priority. Here, we use ancient DNA to investigate dugong (Dugong dugon) population structure, analysing 56 mitogenomes from specimens comprising the known historical range. Our results reveal geographically structured and distinct monophyletic clades characterized by contrasting evolutionary histories. We observe deep-rooted and divergent lineages in the East (Indo-Pacific) and obtain new evidence for the relatively recent dispersal of dugongs into the western Indian Ocean. All populations are significantly differentiated from each other with western populations having approximately 10-fold lower levels of genetic variation than eastern Indo-Pacific populations. Additionally, we find a significant temporal loss of genetic diversity in western Indian Ocean dugongs since the mid-twentieth century, as well as a decline in population size beginning approximately 1000 years ago. Our results add to the growing body of evidence that dugong populations are becoming ever more susceptible to ongoing human action and global climate change.
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Affiliation(s)
- Lydia Hildebrand Furness
- Center for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, Oslo0313, Norway
| | - Oliver Kersten
- Center for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, Oslo0313, Norway
| | - Aurélie Boilard
- Center for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, Oslo0313, Norway
| | - Lucy Keith-Diagne
- African Aquatic Conservation Fund, BP 80 Joal23015, Senegal, West Africa
| | | | - James H. Barrett
- Norwegian University of Science and Technology, Trondheim7491, Norway
| | - Andrew Kitchener
- Department of Natural Sciences, National Museums Scotland, EdinburghEH1 1JF, UK
- School of Geosciences, University of Edinburgh, EdinburghEH10 5HF, UK
| | - Richard Sabin
- Vertebrates Division, Natural History Museum, LondonSW7 5BD, UK
| | - Shane Lavery
- School of Biological Sciences, University of Auckland, Auckland1010, New Zealand
| | - Stephanie Plön
- Department of Pathology, Stellenbosch University, Stellenbosch, South Africa
- Bayworld Centre for Research and Education, Port Elizabeth, 7602, South Africa
| | - Bastiaan Star
- Center for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, Oslo0313, Norway
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Aires T, Cúcio C, Brakel J, Weinberger F, Wahl M, Teles A, Muyzer G, Engelen AH. Impact of persistently high sea surface temperatures on the rhizobiomes of Zostera marina in a Baltic Sea benthocosms. GLOBAL CHANGE BIOLOGY 2024; 30:e17337. [PMID: 38771026 DOI: 10.1111/gcb.17337] [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: 11/30/2023] [Revised: 04/18/2024] [Accepted: 04/28/2024] [Indexed: 05/22/2024]
Abstract
Persistently high marine temperatures are escalating and threating marine biodiversity. The Baltic Sea, warming faster than other seas, is a good model to study the impact of increasing sea surface temperatures. Zostera marina, a key player in the Baltic ecosystem, faces susceptibility to disturbances, especially under chronic high temperatures. Despite the increasing number of studies on the impact of global warming on seagrasses, little attention has been paid to the role of the holobiont. Using an outdoor benthocosm to replicate near-natural conditions, this study explores the repercussions of persistent warming on the microbiome of Z. marina and its implications for holobiont function. Results show that both seasonal warming and chronic warming, impact Z. marina roots and sediment microbiome. Compared with roots, sediments demonstrate higher diversity and stability throughout the study, but temperature effects manifest earlier in both compartments, possibly linked to premature Z. marina die-offs under chronic warming. Shifts in microbial composition, such as an increase in organic matter-degrading and sulfur-related bacteria, accompany chronic warming. A higher ratio of sulfate-reducing bacteria compared to sulfide oxidizers was found in the warming treatment which may result in the collapse of the seagrasses, due to toxic levels of sulfide. Differentiating predicted pathways for warmest temperatures were related to sulfur and nitrogen cycles, suggest an increase of the microbial metabolism, and possible seagrass protection strategies through the production of isoprene. These structural and compositional variations in the associated microbiome offer early insights into the ecological status of seagrasses. Certain taxa/genes/pathways may serve as markers for specific stresses. Monitoring programs should integrate this aspect to identify early indicators of seagrass health. Understanding microbiome changes under stress is crucial for the use of potential probiotic taxa to mitigate climate change effects. Broader-scale examination of seagrass-microorganism interactions is needed to leverage knowledge on host-microbe interactions in seagrasses.
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Affiliation(s)
- Tânia Aires
- Centro de Ciências Do Mar (CCMAR), Centro de Investigação Marinha e Ambiental (CIMAR), Universidade Do Algarve, Faro, Portugal
| | - Catarina Cúcio
- Microbial Systems Ecology, Department of Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - Janina Brakel
- GEOMAR Helmholtz Centre for Ocean Research, Kiel, Germany
| | | | - Martin Wahl
- GEOMAR Helmholtz Centre for Ocean Research, Kiel, Germany
| | - Ana Teles
- Max Planck Institute for Evolutionary Biology, Ploen, Germany
| | - Gerard Muyzer
- Microbial Systems Ecology, Department of Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - Aschwin H Engelen
- Centro de Ciências Do Mar (CCMAR), Centro de Investigação Marinha e Ambiental (CIMAR), Universidade Do Algarve, Faro, Portugal
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Kraan C, Haslob H, Probst WN, Stelzenmüller V, Rehren J, Neumann H. Thresholds of seascape fauna composition along gradients of human pressures and natural conditions to inform marine spatial planning. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 914:169940. [PMID: 38199351 DOI: 10.1016/j.scitotenv.2024.169940] [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: 07/13/2023] [Revised: 11/20/2023] [Accepted: 01/03/2024] [Indexed: 01/12/2024]
Abstract
Knowledge about the cumulative impacts of anthropogenic activities and environmental conditions on marine ecosystems is incomplete and details are lacking. Compositional community changes can occur along gradients, and community data can be used to assess the state of community resilience against combined impacts of variables representing human pressures and environmental conditions. Here we use a machine learning approach, i.e., Gradient Forest, to identify explanatory variable thresholds and select relevant epibenthic fauna and demersal fish species, which can be used to inform an integrated management of multiple human pressures and conservation planning in the southern North Sea. We show that a broad selection of anthropogenic and environmental variables, such as natural disturbance of the seafloor and euphotic depth, determined community composition thresholds of 67 epibenthic fauna and 39 demersal fish species along environmental conditions and human pressure gradients in the southern North Sea between 2010 and 2020. This has the potential to inform resilience assessments under the Marine Strategy Framework Directive to promote and retain a good environmental status of marine ecosystems.
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Affiliation(s)
- Casper Kraan
- Thünen Institute of Sea Fisheries, Herwigstraße 31, 27572 Bremerhaven, Germany.
| | - Holger Haslob
- Thünen Institute of Sea Fisheries, Herwigstraße 31, 27572 Bremerhaven, Germany
| | - Wolfgang N Probst
- Thünen Institute of Sea Fisheries, Herwigstraße 31, 27572 Bremerhaven, Germany
| | | | - Jennifer Rehren
- Thünen Institute of Sea Fisheries, Herwigstraße 31, 27572 Bremerhaven, Germany
| | - Hermann Neumann
- Thünen Institute of Sea Fisheries, Herwigstraße 31, 27572 Bremerhaven, Germany
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Bonsdorff E. Eutrophication: Early warning signals, ecosystem-level and societal responses, and ways forward : This article belongs to Ambio's 50th Anniversary Collection. Theme: Eutrophication. AMBIO 2021; 50:753-758. [PMID: 33537960 PMCID: PMC7982367 DOI: 10.1007/s13280-020-01432-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 10/23/2020] [Accepted: 10/26/2020] [Indexed: 05/21/2023]
Abstract
Eutrophication, i.e. nutrient over-enrichment, has been a topic for academic and societal debate for the past five decades both on land and in aquatic systems fed by nutrients as diffuse loading from agricultural lands and as wastewater from industrial and municipal point-sources. The use of nutrients (primarily nitrogen and phosphorus) in excess became a problem with the onset of large-scale production and use of artificial fertilizers after World War II, and the effects on the aquatic environment became obvious some two to three decades later. In this Perspective, four seminal papers on eutrophication are discussed in light of the current knowledge of the problem, including future perspectives and outlooks in the light of global climate change and the demand for science-based holistic ecosystem-level policies and management options.
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Affiliation(s)
- Erik Bonsdorff
- Environmental and Marine Biology, Åbo Akademi University, BioCity, 20500, Turku, Finland.
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