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Scemama P, Kermagoret C, Astruch P, Boudouresque CF, Changeux T, Harmelin-Vivien M, Ourgaud M, Ruitton S, Verlaque M, Charbonnel E, Alban F, Accornero-Picon A, Le Direac'h L. Impact assessment of multiple pressures on ecosystem services with a state and transition model: Application to Posidonia oceanica seagrass meadows. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 367:121888. [PMID: 39096734 DOI: 10.1016/j.jenvman.2024.121888] [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: 01/04/2024] [Revised: 07/08/2024] [Accepted: 07/13/2024] [Indexed: 08/05/2024]
Abstract
A significant challenge in the integration of ecosystem services into decision-making processes lies in effectively capturing the dynamics of marine socio-ecological systems, including their evolutionary pathways, equilibrium states, and tipping points. This paper explores the evolutionary trajectories of a vital marine ecosystem endemic to the Mediterranean Sea: the Posidonia oceanica seagrass meadows, in response to various drivers of change. A state-and-transition model is employed to assess the ecosystem services provided by P. oceanica across different states defined by selected transitions, such as overfishing, fragmentation, pollution, and invasion by non-native species. To apply this model, scientific expertise is combined with field data generated using the Ecosystem-Based Quality Index to evaluate the conservation status of P. oceanica. This integrated approach allows for the representation of the ecosystem services offered by the meadows across different states, leveraging ecological data. The findings highlight the disproportionate impact on provisioning services, particularly sea urchins and commercial fish production, which suffer the most under various stressors. Notably, when these services decline to critical levels, the meadows cease to provide significant benefits. Finally, a synthesized representation is presented, merging ecological insights with monitoring data, offering a framework that is more accessible to stakeholders and decision-makers.
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Affiliation(s)
- P Scemama
- Ifremer, Univ Brest, CNRS, UMR 6308, AMURE, Unité d'Economie Maritime, IUEM, F-29280, Plouzane, France.
| | - C Kermagoret
- Ifremer, Univ Brest, CNRS, UMR 6308, AMURE, Unité d'Economie Maritime, IUEM, F-29280, Plouzane, France
| | - P Astruch
- GIS Posidonie, OSU Institut Pythéas, Aix-Marseille Univ., Campus de Luminy, Marseille, F-13288, France
| | - C-F Boudouresque
- GIS Posidonie, OSU Institut Pythéas, Aix-Marseille Univ., Campus de Luminy, Marseille, F-13288, France; Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO, Marseille, France
| | - T Changeux
- GIS Posidonie, OSU Institut Pythéas, Aix-Marseille Univ., Campus de Luminy, Marseille, F-13288, France; Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO, Marseille, France
| | - M Harmelin-Vivien
- GIS Posidonie, OSU Institut Pythéas, Aix-Marseille Univ., Campus de Luminy, Marseille, F-13288, France; Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO, Marseille, France
| | - M Ourgaud
- GIS Posidonie, OSU Institut Pythéas, Aix-Marseille Univ., Campus de Luminy, Marseille, F-13288, France; Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO, Marseille, France; CEFREM, University of Perpignan Via Domitia (UPVD), CNRS, UMR 5110, 52 avenue Paul Alduy, 66860, Perpignan, Cedex 09, France
| | - S Ruitton
- GIS Posidonie, OSU Institut Pythéas, Aix-Marseille Univ., Campus de Luminy, Marseille, F-13288, France; Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO, Marseille, France
| | - M Verlaque
- GIS Posidonie, OSU Institut Pythéas, Aix-Marseille Univ., Campus de Luminy, Marseille, F-13288, France; Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO, Marseille, France
| | - E Charbonnel
- Parc Marin de la Côte Bleue, Observatoire PMCB plage du Rouet, Carry-le-Rouet, 13620, France
| | - F Alban
- Ifremer, Univ Brest, CNRS, UMR 6308, AMURE, Unité d'Economie Maritime, IUEM, F-29280, Plouzane, France
| | | | - L Le Direac'h
- GIS Posidonie, OSU Institut Pythéas, Aix-Marseille Univ., Campus de Luminy, Marseille, F-13288, France
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Viel T, Cocca M, Esposito R, Amato A, Russo T, Di Cosmo A, Polese G, Manfra L, Libralato G, Zupo V, Costantini M. Effect of biodegradable polymers upon grazing activity of the sea urchin Paracentrotus lividus (Lmk) revealed by morphological, histological and molecular analyses. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 929:172586. [PMID: 38657802 DOI: 10.1016/j.scitotenv.2024.172586] [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: 11/01/2023] [Revised: 03/28/2024] [Accepted: 04/17/2024] [Indexed: 04/26/2024]
Abstract
In the last years biodegradable polymers (BPs) were largely used as real opportunity to solve plastic pollution. Otherwise, their wide use in commercial products, such as packaging sector, is causing a new pollution alarm, mainly because few data reported about their behaviour in the environment and toxicity on marine organisms. Our previous results showed that embryos of the sea urchin Paracentrotus lividus (Lmk) exposed to poly(ε-caprolactone) (PCL), poly(3-hydroxybutyrate) (PHB) and poly(lactic acid) (PLA) showed delay of their development and morphological malformations, also affecting at the molecular levels the expression of several genes involved in different functional responses. In the present work for the first time, we tested the effects of five microplastics (MPs) obtained from BPs such as PBS, poly(butylene succinate), PBSA, poly(butylene succinate-co-butylene adipate), PCL, PHB and PLA, upon grazing activity of the sea urchin revealed by: i. histological analysis seeing at the gonadic tissues; ii. morphological analysis of the deriving embryos; iii. molecular analyses on these embryos to detect variations of the gene expression of eighty-seven genes involved in stress response, detoxification, skeletogenesis, differentiation and development. All these results will help in understanding how MP accumulated inside various organs in the adult sea urchins, and more in general in marine invertebrates, could represent risks for the marine environment.
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Affiliation(s)
- Thomas Viel
- Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy; Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegri, 34, 80078 Pozzuoli, Napoli, Italy; Department of Biology, University of Naples Federico II, Via Cinthia 26, 80126 Napoli, Italy
| | - Mariacristina Cocca
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegri, 34, 80078 Pozzuoli, Napoli, Italy
| | - Roberta Esposito
- Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy
| | - Amalia Amato
- Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy; Department of Biology, University of Naples Federico II, Via Cinthia 26, 80126 Napoli, Italy
| | - Tania Russo
- Department of Biology, University of Naples Federico II, Via Cinthia 26, 80126 Napoli, Italy
| | - Anna Di Cosmo
- Department of Biology, University of Naples Federico II, Via Cinthia 26, 80126 Napoli, Italy
| | - Gianluca Polese
- Department of Biology, University of Naples Federico II, Via Cinthia 26, 80126 Napoli, Italy
| | - Loredana Manfra
- Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy; Institute for Environmental Protection and Research (ISPRA), Via Vitaliano Brancati 48, 00144 Rome, Italy
| | - Giovanni Libralato
- Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy; Department of Biology, University of Naples Federico II, Via Cinthia 26, 80126 Napoli, Italy
| | - Valerio Zupo
- Stazione Zoologica, Sustainable Biotechnology Department. Ischia Marine Centre, Via Buonocore, Ischia, NA, Italy
| | - Maria Costantini
- Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy.
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Rindi L, Mintrone C, Ravaglioli C, Benedetti-Cecchi L. Spatial signatures of an approaching regime shift in Posidonia oceanica meadows. MARINE ENVIRONMENTAL RESEARCH 2024; 198:106499. [PMID: 38640690 DOI: 10.1016/j.marenvres.2024.106499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 04/04/2024] [Accepted: 04/08/2024] [Indexed: 04/21/2024]
Abstract
Determining the proximity of ecosystems to tipping points is a critical yet complex task, heightened by the growing severity of climate change and local anthropogenic stressors on ecosystem integrity. Spatial Early Warning Signals (EWS) have been recognized for their potential in preemptively signaling regime shifts to degraded states, but their performance in natural systems remains uncertain. In this study, we investigated the performance of 'recovery length' - the spatial extent of recovery from a perturbation - and spatial EWS as early warnings of regime shifts in Posidonia oceanica meadows. Our experimental approach involved progressively thinning the P. oceanica canopy, from 0 to 100%, at the edge of a dead-matte area - a structure formed by dead P. oceanica rhizomes and colonized by algal turfs - to promote the propagation of algal turfs. We calculated recovery length as the distance from the dead-matte edge to the point where algal turfs colonized the canopy-thinned region. Our results showed a linear increase in recovery length with canopy thinning, successfully anticipated the degradation of P. oceanica. While spatial skewness decline with increased canopy degradation, other spatial EWS, such as Moran correlation at lag-1, low-frequency spatial spectra, and spatial variance, were ineffective in signaling this degradation. These findings underscore the potential of recovery length as a reliable early warning indicator of regime shifts in marine coastal ecosystems.
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Affiliation(s)
- Luca Rindi
- Department of Biology, University of Pisa, Via Derna 1, Pisa, Italy; CoNISMa, Piazzale Flaminio 9, 00196, Rome, Italy.
| | - Caterina Mintrone
- Department of Biology, University of Pisa, Via Derna 1, Pisa, Italy; CoNISMa, Piazzale Flaminio 9, 00196, Rome, Italy
| | - Chiara Ravaglioli
- Department of Biology, University of Pisa, Via Derna 1, Pisa, Italy; CoNISMa, Piazzale Flaminio 9, 00196, Rome, Italy
| | - Lisandro Benedetti-Cecchi
- Department of Biology, University of Pisa, Via Derna 1, Pisa, Italy; CoNISMa, Piazzale Flaminio 9, 00196, Rome, Italy
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Comte A, Barreyre J, Monnier B, de Rafael R, Boudouresque CF, Pergent G, Ruitton S. Operationalizing blue carbon principles in France: Methodological developments for Posidonia oceanica seagrass meadows and institutionalization. MARINE POLLUTION BULLETIN 2024; 198:115822. [PMID: 38016206 DOI: 10.1016/j.marpolbul.2023.115822] [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: 09/18/2023] [Revised: 11/16/2023] [Accepted: 11/17/2023] [Indexed: 11/30/2023]
Abstract
Conservation of ecosystems is an important tool for climate change mitigation. Seagrasses, mangroves, saltmarshes and other marine ecosystems have particularly high capacities to sequester and store organic carbon (blue carbon), and are being impacted by human activities. Calls have been made to mainstream blue carbon into policies, including carbon markets. Building on the scientific literature and the French voluntary carbon standard, the 'Label Bas-Carbone', we develop the first method for the conservation of Posidonia oceanica seagrasses using carbon finance. This methodology assesses the emission reduction potential of projects that reduce physical impacts from boating and anchoring. We show how this methodology was institutionalized thanks to a tiered approach on key parameters including carbon stocks, degradation rates, and decomposition rates. We discuss future needs regarding (i) how to strengthen the robustness of the method, and (ii) the expansion of the method to restoration of seagrasses and to other blue carbon ecosystems.
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Affiliation(s)
- Adrien Comte
- IRD, Univ Brest, CNRS, Ifremer, LEMAR, 29280 Plouzané, France.
| | | | - Briac Monnier
- Université de Corse, UMR CNRS SPE 6134, Campus Grimaldi BP 52, Corte, France
| | | | - Charles-François Boudouresque
- Aix Marseille Université - Université de Toulon, CNRS, IRD, Mediterranean Institute of Oceanography (MIO), UM 110, Marseille, France
| | - Gérard Pergent
- Université de Corse, UMR CNRS SPE 6134, Campus Grimaldi BP 52, Corte, France
| | - Sandrine Ruitton
- Aix Marseille Université - Université de Toulon, CNRS, IRD, Mediterranean Institute of Oceanography (MIO), UM 110, Marseille, France
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Viel T, Cocca M, Manfra L, Caramiello D, Libralato G, Zupo V, Costantini M. Effects of biodegradable-based microplastics in Paracentrotus lividus Lmk embryos: Morphological and gene expression analysis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 334:122129. [PMID: 37429489 DOI: 10.1016/j.envpol.2023.122129] [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: 03/23/2023] [Revised: 06/14/2023] [Accepted: 06/29/2023] [Indexed: 07/12/2023]
Abstract
Plastic pollution is a remarkable environmental issue. In fact, plastic is widespread in the lifetime and serious environmental problems are caused by the improper management of plastic end of life, being plastic litter detected in any environment. Efforts are put to implement the development of sustainable and circular materials. In this scenario, biodegradable polymers, BPs, are promising materials if correctly applied and managed at the end of life to minimize environmental problems. However, a lack of data on BPs fate and toxicity on marine organisms, limits their applicability. In this research, the impact of microplastics obtained from BPs, BMPs, were analyzed on Paracentrotus lividus. Microplastics were produced from five biodegradable polyesters at laboratory scale by milling the pristine polymers, under cryogenic conditions. Morphological analysis of P. lividus embryos exposed to polycaprolactone (PCL), polyhydroxy butyrate (PHB) and polylactic acid (PLA) showed their delay and malformations, which at molecular level are due to variation in expression levels of eighty-seven genes involved in various cellular processes, such as skeletogenesis, differentiation and development, stress, and detoxification response. Exposure to poly(butylene succinate) (PBS) and poly(butylene succinate-co-adipate) (PBSA) microplastics showed no detectable effects on P. lividus embryos. These findings contribute with important data on the effect of BPs on the physiology of marine invertebrates.
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Affiliation(s)
- Thomas Viel
- Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Via Ammiraglio Ferdinando Acton, n.55, 80133, Napoli, Italy; Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegri, 34, 80078, Pozzuoli, Napoli, Italy; Department of Biology, University of Naples Federico II, Via Cinthia 26, 80126, Napoli, Italy
| | - Mariacristina Cocca
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegri, 34, 80078, Pozzuoli, Napoli, Italy.
| | - Loredana Manfra
- Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Via Ammiraglio Ferdinando Acton, n.55, 80133, Napoli, Italy; Institute for Environmental Protection and Research (ISPRA), Via Vitaliano Brancati 48, 00144, Rome, Italy
| | - Davide Caramiello
- Stazione Zoologica Anton Dohrn, Department of Marine Animal Conservation and Public Engagement, Villa Comunale, 1, 80121, Naples, Italy
| | - Giovanni Libralato
- Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Via Ammiraglio Ferdinando Acton, n.55, 80133, Napoli, Italy; Department of Biology, University of Naples Federico II, Via Cinthia 26, 80126, Napoli, Italy
| | - Valerio Zupo
- Stazione Zoologica Anton Dohrn, Department of Ecosustainable Marine Biotechnology, Ischia Marine Centre, Via F. Buonocore, 42, 80077, Ischia, Italy
| | - Maria Costantini
- Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Via Ammiraglio Ferdinando Acton, n.55, 80133, Napoli, Italy
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Poursanidis D, Mylonakis K, Christofilakos S, Barnias A. Mind the gap in data poor Natura 2000 sites and how to tackle them using Earth Observation and scientific diving surveys. MARINE POLLUTION BULLETIN 2023; 188:114595. [PMID: 36738725 DOI: 10.1016/j.marpolbul.2023.114595] [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: 07/20/2022] [Revised: 01/03/2023] [Accepted: 01/06/2023] [Indexed: 06/18/2023]
Abstract
Charismatic species drives decisions for the conservation of marine areas in the view of the coverage of the Natura 2000 sites in the European Union and other forms of Marine Protected Areas in Europe. However, when used solely, critical seascapes and habitats are systematically ignored and practically it can take decades to fulfill baseline needs on habitats distributions, habitats conservation status and species distributions and biodiversity assessments. Luckily, in the last decade, the use of new technologies in conjunction with scientific diving and budget friendly hydroacoustic tools and applications, has allowed to fill the gap in knowledge in such situations and seascapes. The current work demonstrates the use of Earth Observation and Science Dive to fill the gap of knowledge in a newly established Natura 2000 area in Crete, Greece, East Mediterranean, paving the road for replicable approaches in similar situations.
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Affiliation(s)
- Dimitris Poursanidis
- terraSolutions marine environment research, Arximidous 63, PO 71601, Heraklion, Crete, Greece; Remote Sensing Lab, Institute of Applied and Computational Mathematics, Foundation for Research and Technology Hellas, 100 N. Plastira Str., Vassilika Vouton, Heraklion 70013, Greece.
| | - Kostas Mylonakis
- terraSolutions marine environment research, Arximidous 63, PO 71601, Heraklion, Crete, Greece
| | - Spyros Christofilakos
- German Aerospace Center (DLR), Remote Sensing Technology Institute (IMF), Department of Photogrammetry and image Analysis, Rutherford 2, 12489 Berlin, Germany
| | - Antonios Barnias
- Management Unit of Samaria National Park and the Protected Areas of Western Crete, Old National Road Chanion-Kissamou, Agioi Apostoloi, opposite to the supermarket Lidl, P.O. Box 73100, Chania, Greece
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El Zrelli R, Hcine A, Yacoubi L, Roa-Ureta RH, Gallai N, Castet S, Grégoire M, Courjault-Radé P, Rabaoui LJ. Economic losses related to the reduction of Posidonia ecosystem services in the Gulf of Gabes (Southern Mediterranean Sea). MARINE POLLUTION BULLETIN 2023; 186:114418. [PMID: 36462419 DOI: 10.1016/j.marpolbul.2022.114418] [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: 06/30/2022] [Revised: 11/15/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
In the early XXth century, the Gulf of Gabes in SE Tunisia used to host the most extended Posidonia oceanica seagrass beds in the Mediterranean basin and was a highly productive hotspot of benthic species. Since the 70's, >500 million t of wet toxic phosphogypsum discharges from a fertilizer industrial complex have led to the gradual loss of ∼90 % of its initial surface. This drastic shrinkage is accompanied by significant value losses originated from the direct and indirect-use services of which the most important ones are small scale fisheries and carbon storage function. Using market valuations of a number of services we estimate economic losses at 105 million € in 2014 (∼915€/ha), i.e., around 115 % of the added value of the gabesian fertilizer factories for the same year. Value losses should increase in the near future in relation with the COP26 agreements which boosted the open carbon credit market. Without actions to reduce negative production externalities caused by the fertilizer industry in the Gulf of Gabes it would not be possible to recover Posidonia ecosystems in this region leading to further economic, ecologic, and cultural losses.
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Affiliation(s)
- Radhouan El Zrelli
- SADEF Agronomy & Environment, 30 Rue de la Station, 68700 Aspach-le-Bas, France.
| | - Ahlem Hcine
- University of Sfax, Faculty of Economics and Management of Sfax, Research Laboratory in Competitiveness, Commercial Decisions and Internationalisation (CODECI), Sfax, Tunisia
| | - Lamia Yacoubi
- University of Tunis El Manar, Faculty of Science of Tunis, Laboratory of Biodiversity and Parasitology of Aquatic Ecosystems (LR18ES05), University Campus, 2092 Tunis, Tunisia
| | | | - Nicola Gallai
- LEREPS, ENFA, Université Fédérale Toulouse Midi-Pyrénées, Toulouse Cedex F31042, France
| | - Sylvie Castet
- Géosciences Environnement Toulouse (GET), Université de Toulouse, UMR 5563 CNRS/UPS/IRD/CNES, 14 Avenue Edouard Belin, 31400 Toulouse, France
| | - Michel Grégoire
- Géosciences Environnement Toulouse (GET), Université de Toulouse, UMR 5563 CNRS/UPS/IRD/CNES, 14 Avenue Edouard Belin, 31400 Toulouse, France
| | - Pierre Courjault-Radé
- Géosciences Environnement Toulouse (GET), Université de Toulouse, UMR 5563 CNRS/UPS/IRD/CNES, 14 Avenue Edouard Belin, 31400 Toulouse, France
| | - Lotfi Jilani Rabaoui
- University of Tunis El Manar, Faculty of Science of Tunis, Laboratory of Biodiversity and Parasitology of Aquatic Ecosystems (LR18ES05), University Campus, 2092 Tunis, Tunisia; National Center for Wildlife, Riyadh, Saudi Arabia
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8
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Seagrasses, seaweeds and plant debris: An extraordinary reservoir of fungal diversity in the Mediterranean Sea. FUNGAL ECOL 2022. [DOI: 10.1016/j.funeco.2022.101156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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9
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Maberly SC, Stott A, Gontero B. The differential ability of two species of seagrass to use carbon dioxide and bicarbonate and their modelled response to rising concentrations of inorganic carbon. FRONTIERS IN PLANT SCIENCE 2022; 13:936716. [PMID: 36388529 PMCID: PMC9648567 DOI: 10.3389/fpls.2022.936716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 09/14/2022] [Indexed: 06/16/2023]
Abstract
Seagrass meadows are one of the most productive ecosystems on the planet, but their photosynthesis rate may be limited by carbon dioxide but mitigated by exploiting the high concentration of bicarbonate in the ocean using different active processes. Seagrasses are declining worldwide at an accelerating rate because of numerous anthropogenic pressures. However, rising ocean concentrations of dissolved inorganic carbon, caused by increases in atmospheric carbon dioxide, may benefit seagrass photosynthesis. Here we compare the ability of two seagrass from the Mediterranean Sea, Posidonia oceanica (L.) Delile and Zostera marina L., to use carbon dioxide and bicarbonate at light saturation, and model how increasing concentrations of inorganic carbon affect their photosynthesis rate. pH-drift measurements confirmed that both species were able to use bicarbonate in addition to carbon dioxide, but that Z. marina was more effective than P. oceanica. Kinetic experiments showed that, compared to Z. marina, P. oceanica had a seven-fold higher affinity for carbon dioxide and a 1.6-fold higher affinity for bicarbonate. However, the maximal rate of bicarbonate uptake in Z. marina was 2.1-fold higher than in P. oceanica. In equilibrium with 410 ppm carbon dioxide in the atmosphere, the modelled rates of photosynthesis by Z. marina were slightly higher than P. oceanica, less carbon limited and depended on bicarbonate to a greater extent. This greater reliance by Z. marina is consistent with its less depleted 13C content compared to P. oceanica. Modelled photosynthesis suggests that both species would depend on bicarbonate alone at an atmospheric carbon dioxide partial pressure of 280 ppm. P. oceanica was projected to benefit more than Z. marina with increasing atmospheric carbon dioxide partial pressures, and at the highest carbon dioxide scenario of 1135 ppm, would have higher rates of photosynthesis and be more saturated by inorganic carbon than Z. marina. In both species, the proportional reliance on bicarbonate declined markedly as carbon dioxide concentrations increased and in P. oceanica carbon dioxide would become the major source of inorganic carbon.
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Affiliation(s)
| | - Andrew W. Stott
- UK Centre for Ecology & Hydrology, Lancaster Environment Centre, Lancaster, United Kingdom
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Morresi C, Vasarri M, Bellachioma L, Ferretti G, Degl′Innocenti D, Bacchetti T. Glucose Uptake and Oxidative Stress in Caco-2 Cells: Health Benefits from Posidonia oceanica (L.) Delile. Mar Drugs 2022; 20:md20070457. [PMID: 35877750 PMCID: PMC9319946 DOI: 10.3390/md20070457] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/12/2022] [Accepted: 07/13/2022] [Indexed: 12/10/2022] Open
Abstract
Posidonia oceanica (L.) Delile is an endemic Mediterranean marine plant of extreme ecological importance. Previous in vitro and in vivo studies have demonstrated the potential antidiabetic properties of P. oceanica leaf extract. Intestinal glucose transporters play a key role in glucose homeostasis and represent novel targets for the management of diabetes. In this study, the ability of a hydroalcoholic P. oceanica leaf extract (POE) to modulate intestinal glucose transporters was investigated using Caco-2 cells as a model of an intestinal barrier. The incubation of cells with POE significantly decreased glucose uptake by decreasing the GLUT2 glucose transporter levels. Moreover, POE had a positive effect on the barrier integrity by increasing the Zonulin-1 levels. A protective effect exerted by POE against oxidative stress induced by chronic exposure to high glucose concentrations or tert-butyl hydroperoxide was also demonstrated. This study highlights for the first time the effect of POE on glucose transport, intestinal barrier integrity, and its protective antioxidant effect in Caco-2 cells. These findings suggest that the P. oceanica phytocomplex may have a positive impact by preventing the intestinal cell dysfunction involved in the development of inflammation-related disease associated with oxidative stress.
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Affiliation(s)
- Camilla Morresi
- Department of Clinical Experimental Science and Odontostomatology-Biochemistry, Università Politecnica delle Marche, 60100 Ancona, Italy; (C.M.); (G.F.)
| | - Marzia Vasarri
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy;
| | - Luisa Bellachioma
- Department of Life and Environmental Sciences-Biochemistry, Università Politecnica delle Marche, 60100 Ancona, Italy; (L.B.); (T.B.)
| | - Gianna Ferretti
- Department of Clinical Experimental Science and Odontostomatology-Biochemistry, Università Politecnica delle Marche, 60100 Ancona, Italy; (C.M.); (G.F.)
| | - Donatella Degl′Innocenti
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy;
- Interuniversity Center of Marine Biology and Applied Ecology “G. Bacci” (CIBM), Viale N. Sauro 4, 57128 Livorno, Italy
- Correspondence:
| | - Tiziana Bacchetti
- Department of Life and Environmental Sciences-Biochemistry, Università Politecnica delle Marche, 60100 Ancona, Italy; (L.B.); (T.B.)
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11
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Tyllianakis E. “Please let me visit”: Management options for marine ecosystems in a Mediterranean Marine Protected Area. J Nat Conserv 2022. [DOI: 10.1016/j.jnc.2022.126174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Climate Change in Africa and Vegetation Response: A Bibliometric and Spatially Based Information Assessment. SUSTAINABILITY 2022. [DOI: 10.3390/su14094974] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The impact of climate change over the coming decades will increase the likelihood of many species undergoing genetic alterations or even becoming extinct. Vegetation and belowground organisms are more vulnerable to the intensified impact of climate change due to a possible lack of genetic plasticity and limited mobility. Organisms are inter-dependable in ecosystems; hence, this study focused on the impact of climate change, examining the soil condition in Africa, vegetation responses and the overview of species’ responses to climate change through a bibliometric study and an analysis of remote sensing information. The bibliometric study examines climate change-related literature published from 1999 to 2019, collected from the Web of Science and Scopus database platforms, and this reveals an overall rapid increase in the number of climate change publications in Africa, with South Africa occupying a leading position in all the studied parameters. The spatially based information on soil moisture, temperature and the photosynthetic activities of vegetation affirmed that there is increasing amount of drought in Africa with more impact in northern, southern and eastern Africa. African countries, especially in the above-mentioned regions, need to urgently invest in support programs that will ease the impact of climate change, particularly on food security.
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13
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The joint influence of environmental and anthropogenic factors on the invasion of two alien caulerpae in northwestern Mediterranean. Biol Invasions 2021. [DOI: 10.1007/s10530-021-02654-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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Vasarri M, De Biasi AM, Barletta E, Pretti C, Degl’Innocenti D. An Overview of New Insights into the Benefits of the Seagrass Posidonia oceanica for Human Health. Mar Drugs 2021; 19:md19090476. [PMID: 34564138 PMCID: PMC8470915 DOI: 10.3390/md19090476] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 08/20/2021] [Accepted: 08/23/2021] [Indexed: 12/22/2022] Open
Abstract
Posidonia oceanica (L.) Delile is a Mediterranean-endemic angiosperm often described for its great ecological importance. Despite evidence of a millennia-old relationship between P. oceanica and humans, as well as traditional medicine applications, the potential benefits of P. oceanica for human health have been documented only recently. This review aims to compile newly acquired knowledge on P. oceanica bioactive properties that allow the scientific community to look at this plant as a promising source of natural therapeutical products for human health. Experimental investigations conducted in both in vitro cellular-based and in vivo animal models pave the way for new research projects aiming at the development of alternative and complementary therapeutic strategies based on P. oceanica against a wide range of pathological conditions.
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Affiliation(s)
- Marzia Vasarri
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy; (M.V.); (E.B.)
| | - Anna Maria De Biasi
- Interuniversity Center of Marine Biology and Applied Ecology “G. Bacci” (CIBM), Viale N. Sauro 4, 57128 Livorno, Italy; (A.M.D.B.); (C.P.)
| | - Emanuela Barletta
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy; (M.V.); (E.B.)
| | - Carlo Pretti
- Interuniversity Center of Marine Biology and Applied Ecology “G. Bacci” (CIBM), Viale N. Sauro 4, 57128 Livorno, Italy; (A.M.D.B.); (C.P.)
- Department of Veterinary Sciences, University of Pisa, Viale delle Piagge 2, 56124 Pisa, Italy
| | - Donatella Degl’Innocenti
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy; (M.V.); (E.B.)
- Department of Veterinary Sciences, University of Pisa, Viale delle Piagge 2, 56124 Pisa, Italy
- Correspondence:
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15
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Gerakaris V, Papathanasiou V, Salomidi M, Issaris Y, Panayotidis P. Spatial patterns of Posidonia oceanica structural and functional features in the Eastern Mediterranean (Aegean and E. Ionian Seas) in relation to large-scale environmental factors. MARINE ENVIRONMENTAL RESEARCH 2021; 165:105222. [PMID: 33461107 DOI: 10.1016/j.marenvres.2020.105222] [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: 07/27/2020] [Revised: 11/24/2020] [Accepted: 11/28/2020] [Indexed: 06/12/2023]
Abstract
In the context of general ecosystem monitoring of the Greek coastal marine environment, a total of 22 descriptors of Posidonia oceanica meadows were studied in 69 study sites. Spatial variation of P. oceanica meadows' features in relation to specific environmental factors (i.e., light, physical exposure, temperature, and nutrients) controlling their dynamics was assessed in three sub-ecoregions of the Hellenic seas (Eastern Ionian, North Aegean, and South Aegean). The studied meadows differentiated by exhibiting varying growth patterns at both the local and sub-ecoregional scale. Significant differences in morphological and demographic descriptors were observed for meadows of the N. Aegean Sea as compared to those of the S. Aegean and the Eastern Ionian Seas. Light limitation was determined as the main driver differentiating the P. oceanica meadows' distribution (i.e., lower limit depth), demography (i.e., shoot density, meadow cover) and shoots' biometry (i.e., shoot length, shoot leaf surface and leaf biomass) along the mainland coastal zone of the N. Aegean Sea. Considering the projected decline of P. oceanica in the face of increasing natural and human impacts, this study offers a crucial ecological baseline that can enhance our understanding of P. oceanica meadows' trends, against which the efficiency of conservation plans and management actions may be monitored.
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Affiliation(s)
- Vasilis Gerakaris
- Hellenic Centre for Marine Research (HCMR), Institute of Oceanography, 46.7 Km Athens - Sounio Av., 19013 Mavro Lithari, Greece.
| | - Vasillis Papathanasiou
- Fisheries Research Institute (FRI), Hellenic Agricultural Organization-DEMETER, 640 07 Nea Peramos, Kavala, Greece
| | - Maria Salomidi
- Hellenic Centre for Marine Research (HCMR), Institute of Oceanography, 46.7 Km Athens - Sounio Av., 19013 Mavro Lithari, Greece
| | - Yiannis Issaris
- Hellenic Centre for Marine Research (HCMR), Institute of Oceanography, 46.7 Km Athens - Sounio Av., 19013 Mavro Lithari, Greece
| | - Panayotis Panayotidis
- Hellenic Centre for Marine Research (HCMR), Institute of Oceanography, 46.7 Km Athens - Sounio Av., 19013 Mavro Lithari, Greece
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16
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Poli A, Bovio E, Ranieri L, Varese GC, Prigione V. Fungal Diversity in the Neptune Forest: Comparison of the Mycobiota of Posidonia oceanica, Flabellia petiolata, and Padina pavonica. Front Microbiol 2020; 11:933. [PMID: 32528431 PMCID: PMC7265640 DOI: 10.3389/fmicb.2020.00933] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 04/20/2020] [Indexed: 11/30/2022] Open
Abstract
Fungi are widely distributed in the Oceans, interact with other organisms and play roles that range from pathogenic to mutualistic. The present work focuses on the characterization of the cultivable mycobiota associated with the seagrass Posidonia oceanica (L.) Delile collected off the Elba Island (Italy). We identified 102 taxa (mainly Ascomycota) by the mean of a polyphasic approach. Leaves, rhizomes, roots and matte were characterized by unique mycobiota revealing a "plant-part-specificity." The comparison with the mycobiota associated with the green alga Flabellia petiolata and the brown alga Padina pavonica underlined a "substrate specificity." Indeed, despite being part of the same phytocoenosis, these photosynthetic organisms recruit different fungal communities. The mycobiota seems to be necessary for the host's defense and protection, playing, in this way, remarkable ecological roles. Among the 61 species detected in association with P. oceanica (including two species belonging to the newly introduced genus Paralulworthia), 37 were reported for the first time from the Mediterranean Sea.
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Affiliation(s)
| | | | | | - Giovanna Cristina Varese
- Department of Life Sciences and Systems Biology, Mycotheca Universitatis Taurinensis, University of Torino, Turin, Italy
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17
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Gnisci V, Cognetti de Martiis S, Belmonte A, Micheli C, Piermattei V, Bonamano S, Marcelli M. Assessment of the ecological structure of Posidonia oceanica (L.) Delile on the northern coast of Lazio, Italy (central Tyrrhenian, Mediterranean). ITALIAN BOTANIST 2020. [DOI: 10.3897/italianbotanist.9.46426] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The ecological structure of Posidonia oceanica (L.) Delile meadows was evaluated on the northern coast of Lazio, Italy (central Tyrrhenian, Mediterranean sea). This is an infra-littoral zone with a wide range of anthropogenic activities and high geo-morphological variability, which reflects heterogeneity in shoot density, leaf morphology and biomass in fragmented patches. Genetic variability in populations corresponds to the formation of 3 sub-clusters, in the diverse impacted zones (north, centre and south), being correlated to the geographical distance between sites. AMOVA estimated a high genetic variation showing 43.05% individual differences within populations with a marked differentiation among the populations (56.9%) indicated by Fst value (0.57). These results revealed the role of the genetic structure of seagrasses for determining selectivity of fragmented habitat, in response to natural drivers. They showed that site-specific self-recruitment is related to biodiversity capacity and to the geo-morphological characteristic of the coast.
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18
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Boudouresque CF, Verlaque M. Paracentrotus lividus. DEVELOPMENTS IN AQUACULTURE AND FISHERIES SCIENCE 2020. [DOI: 10.1016/b978-0-12-819570-3.00026-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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19
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Abadie A, Richir J, Lejeune P, Leduc M, Gobert S. Structural Changes of Seagrass Seascapes Driven by Natural and Anthropogenic Factors: A Multidisciplinary Approach. Front Ecol Evol 2019. [DOI: 10.3389/fevo.2019.00190] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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20
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Jerković I, Marijanović Z, Roje M, Kuś PM, Jokić S, Čož-Rakovac R. Phytochemical study of the headspace volatile organic compounds of fresh algae and seagrass from the Adriatic Sea (single point collection). PLoS One 2018; 13:e0196462. [PMID: 29738535 PMCID: PMC5940206 DOI: 10.1371/journal.pone.0196462] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Accepted: 04/13/2018] [Indexed: 11/18/2022] Open
Abstract
Performed phytochemical study contributes to the knowledge of volatile organic compounds (VOCs) of Halopteris filicina (Grateloup) Kützing, Dictyota dichotoma (Hudson) J. V. Lamouroux, Posidonia oceanica (L.) Delile and Flabellia petiolata (Turra) Nizamuddin from the Adriatic Sea (single point collection). VOCs were investigated by headspace solid-phase microextraction (HS-SPME) and analysed by gas chromatography and mass spectrometry (GC-MS/FID). H. filicina headspace contained dimethyl sulfide (DMS; 12.8%), C8-compounds (e.g. fucoserratene (I; 9.5%)), benzaldehyde (II; 8.7%), alkane C17, dictyopterene D and C (III, IV), tribromomethane (V), 1-iodopentane, others. F. petiolata headspace was characterized by DMS (22.2%), 6-methylhept-5-en-2-one (9.5%), C17 (9.1%), II (6.5%), compounds I-V. DMS (59.3%), C15 (14.5%), C17 (7.2%) and C19 (6.3%) dominated in P. oceanica headspace. Sesquiterpenes were found in D. dichotoma, predominantly germacrene D (28.3%) followed by other cadinenyl (abundant), muurolenyl and amorphenyl structures. Determined VOCs may be significant for chemosystematics and chemical communications in marine ecosystem.
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Affiliation(s)
- Igor Jerković
- Department of Organic Chemistry, Faculty of Chemistry and Technology, University of Split, HR Split, Croatia
| | - Zvonimir Marijanović
- Department of Food Technology and Biotechnology, Faculty of Chemistry and Technology, University of Split, HR Split, Croatia
| | - Marin Roje
- Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, HR Zagreb, Croatia
| | - Piotr M. Kuś
- Department of Pharmacognosy, Wrocław Medical University, Wrocław, Poland
| | - Stela Jokić
- Department of Process Engineering, Faculty of Food Technology, Josip Juraj Strossmayer University of Osijek, HR Osijek, Croatia
| | - Rozelinda Čož-Rakovac
- Laboratory for Aquaculture Biotechnology, Ruđer Bošković Institute, HR Zagreb, Croatia
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21
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Gnavi G, Garzoli L, Poli A, Prigione V, Burgaud G, Varese GC. The culturable mycobiota of Flabellia petiolata: First survey of marine fungi associated to a Mediterranean green alga. PLoS One 2017; 12:e0175941. [PMID: 28426712 PMCID: PMC5398637 DOI: 10.1371/journal.pone.0175941] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 04/03/2017] [Indexed: 12/02/2022] Open
Abstract
Algae-inhabiting marine fungi represent a taxonomically and ecologically interesting group of microorganisms still largely neglected, especially in temperate regions. The aim of this study was to isolate and to identify the culturable mycobiota associated with Flabellia petiolata, a green alga frequently retrieved in the Mediterranean basin. Twenty algal thalli were collected from two different sampling sites in the Mediterranean Sea (Elba Island, Italy). A polyphasic approach showed the presence of a relevant alga-associated mycobiota with 64 taxa identified. The fungal isolates belonged mainly to Ascomycota (61 taxa), while only three Basidiomycota were detected. The phylogenetic position of sterile mycelia and cryptic taxa, inferred on the basis of LSU partial region, highlighted the presence of putative new phylogenetic lineages within Dothideomycetes and Sordariomycetes. This work represents the first quali-quantitative analysis of the culturable mycobiota associated to a green alga in the Mediterranean Sea.
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Affiliation(s)
- Giorgio Gnavi
- Mycotheca Universitatis Taurinensis (MUT), Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Laura Garzoli
- Mycotheca Universitatis Taurinensis (MUT), Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Anna Poli
- Mycotheca Universitatis Taurinensis (MUT), Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Valeria Prigione
- Mycotheca Universitatis Taurinensis (MUT), Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Gaëtan Burgaud
- Université de Brest, EA 3882 Laboratoire Universitaire de Biodiversité et Ecologie Microbienne, Technopôle Brest-Iroise, Plouzané, France
| | - Giovanna Cristina Varese
- Mycotheca Universitatis Taurinensis (MUT), Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
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22
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Thibaut T, Blanfuné A, Boudouresque CF, Personnic S, Ruitton S, Ballesteros E, Bellan-Santini D, Bianchi CN, Bussotti S, Cebrian E, Cheminée A, Culioli JM, Derrien-Courtel S, Guidetti P, Harmelin-Vivien M, Hereu B, Morri C, Poggiale JC, Verlaque M. An ecosystem-based approach to assess the status of Mediterranean algae-dominated shallow rocky reefs. MARINE POLLUTION BULLETIN 2017; 117:311-329. [PMID: 28189369 DOI: 10.1016/j.marpolbul.2017.01.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 01/13/2017] [Accepted: 01/16/2017] [Indexed: 06/06/2023]
Abstract
A conceptual model was constructed for the functioning the algae-dominated rocky reef ecosystem of the Mediterranean Sea. The Ecosystem-Based Quality Index (reef-EBQI) is based upon this model. This index meets the objectives of the EU Marine Strategy Framework Directive. It is based upon (i) the weighting of each compartment, according to its importance in the functioning of the ecosystem; (ii) biological parameters assessing the state of each compartment; (iii) the aggregation of these parameters, assessing the quality of the ecosystem functioning, for each site; (iv) and a Confidence Index measuring the reliability of the index, for each site. The reef-EBQI was used at 40 sites in the northwestern Mediterranean. It constitutes an efficient tool, because it is based upon a wide set of functional compartments, rather than upon just a few species; it is easy and inexpensive to implement, robust and not redundant with regard to already existing indices.
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Affiliation(s)
- Thierry Thibaut
- Aix-Marseille University, Mediterranean Institute of Oceanography (MIO), CNRS/INSU, IRD, UM 110, Campus universitaire de Luminy, case 901, 13288 Marseille cedex 09, France. thierry.thibaut@univ.-amu.fr
| | - Aurélie Blanfuné
- Aix-Marseille University, Mediterranean Institute of Oceanography (MIO), CNRS/INSU, IRD, UM 110, Campus universitaire de Luminy, case 901, 13288 Marseille cedex 09, France
| | - Charles F Boudouresque
- Aix-Marseille University, Mediterranean Institute of Oceanography (MIO), CNRS/INSU, IRD, UM 110, Campus universitaire de Luminy, case 901, 13288 Marseille cedex 09, France
| | - Sébastien Personnic
- Aix-Marseille University, Mediterranean Institute of Oceanography (MIO), CNRS/INSU, IRD, UM 110, Campus universitaire de Luminy, case 901, 13288 Marseille cedex 09, France
| | - Sandrine Ruitton
- Aix-Marseille University, Mediterranean Institute of Oceanography (MIO), CNRS/INSU, IRD, UM 110, Campus universitaire de Luminy, case 901, 13288 Marseille cedex 09, France
| | | | - Denise Bellan-Santini
- Aix-Marseille University, Institut Méditerranéen de Biodiversité et d'Ecologie (IMBE), UMR 7263, Station Marine d'Endoume, rue de la batterie des lions, 13007 Marseille, France
| | - Carlo Nike Bianchi
- DiSTAV, Dipartimento di Scienze della Terra, dell'Ambiente e della Vita, Università di Genova, Corso Europa 26, 16132 Genova, Italy
| | - Simona Bussotti
- Université Nice Sophia Antipolis, CNRS, FRE 3729 ECOMERS, Parc Valrose, 28 avenue Valrose, 06108 Nice cedex 02, France
| | - Emma Cebrian
- Centre d'Estudis Avançats de Blanes - CSIC, 17300 Blanes, Spain
| | - Adrien Cheminée
- Aix-Marseille University, Mediterranean Institute of Oceanography (MIO), CNRS/INSU, IRD, UM 110, Campus universitaire de Luminy, case 901, 13288 Marseille cedex 09, France; Université de Perpignan, CNRS, Via Domitia, Centre de Formation et de Recherche sur les Environnements Méditerranéens, UMR 5110, 66860 Perpignan cedex 9, France
| | - Jean-Michel Culioli
- Office de l'Environnement de la Corse, Riserva Naturali di i Bucchi di Bunifaziu, Rundinara, 20169 Bonifacio, Corsica, France
| | | | - Paolo Guidetti
- Université Nice Sophia Antipolis, CNRS, FRE 3729 ECOMERS, Parc Valrose, 28 avenue Valrose, 06108 Nice cedex 02, France
| | - Mireille Harmelin-Vivien
- Aix-Marseille University, Mediterranean Institute of Oceanography (MIO), CNRS/INSU, IRD, UM 110, Campus universitaire de Luminy, case 901, 13288 Marseille cedex 09, France
| | - Bernat Hereu
- Departament d'Ecologia, Universitat de Barcelona, Diagonal 643, 08028 Barcelona, Spain
| | - Carla Morri
- DiSTAV, Dipartimento di Scienze della Terra, dell'Ambiente e della Vita, Università di Genova, Corso Europa 26, 16132 Genova, Italy
| | - Jean-Christophe Poggiale
- Aix-Marseille University, Mediterranean Institute of Oceanography (MIO), CNRS/INSU, IRD, UM 110, Campus universitaire de Luminy, case 901, 13288 Marseille cedex 09, France
| | - Marc Verlaque
- Aix-Marseille University, Mediterranean Institute of Oceanography (MIO), CNRS/INSU, IRD, UM 110, Campus universitaire de Luminy, case 901, 13288 Marseille cedex 09, France
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23
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Abadie A, Lejeune P, Pergent G, Gobert S. From mechanical to chemical impact of anchoring in seagrasses: The premises of anthropogenic patch generation in Posidonia oceanica meadows. MARINE POLLUTION BULLETIN 2016; 109:61-71. [PMID: 27289285 DOI: 10.1016/j.marpolbul.2016.06.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 06/02/2016] [Accepted: 06/03/2016] [Indexed: 06/06/2023]
Abstract
Intensive anchoring of leisure boats in seagrass meadows leads to mechanical damages. This anthropogenic impact creates bare mat patches that are not easily recolonized by the plant. Several tools are used to study human impacts on the structure of seagrass meadows but they are not able to assess the indirect and long term implication of mechanical destruction. We chose to investigate the possible changes in the substrate chemistry given contrasted boat impacts. Our observations show that hydrogen sulfide concentrations remain high at 15 and 20m depth (42.6μM and 18.8μM) several months after the highest period of anchoring during the summer. Moreover, our multidisciplinary study reveals that anchoring impacts of large boats at 15 and 20m depth can potentially change the seascape structure. By taking into account both structural and chemical assessments, different managing strategies must be applied for coastal areas under anthropogenic pressures.
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Affiliation(s)
- Arnaud Abadie
- Station de Recherches Sous-marines et Oceanographiques (STARESO), Pointe Revellata, BP 33, 20260 Calvi, France; Laboratory of Oceanology. MARE Centre, University of Liege. B6C, 4000 LIEGE, Sart Tilman, Belgium; EqEL-FRES 3041, UMR CNRS SPE 6134, University of Corsica, 20250 Corte, France.
| | - Pierre Lejeune
- Station de Recherches Sous-marines et Oceanographiques (STARESO), Pointe Revellata, BP 33, 20260 Calvi, France
| | - Gérard Pergent
- EqEL-FRES 3041, UMR CNRS SPE 6134, University of Corsica, 20250 Corte, France
| | - Sylvie Gobert
- Laboratory of Oceanology. MARE Centre, University of Liege. B6C, 4000 LIEGE, Sart Tilman, Belgium
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24
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Bravo I, Focaracci F, Cerfolli F, Papetti P. Relationships between trace elements in Posidonia oceanica shoots and in sediment fractions along Latium coasts (northwestern Mediterranean Sea). ENVIRONMENTAL MONITORING AND ASSESSMENT 2016; 188:157. [PMID: 26869047 DOI: 10.1007/s10661-016-5122-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2015] [Accepted: 01/18/2016] [Indexed: 06/05/2023]
Abstract
The Mediterranean endemic seagrass Posidonia oceanica is widely used as a sensitive bioindicator of trace elements (TEs) in the coastal environment. Therefore, a bulk of data exist on TE levels from impacted versus unpolluted sites while only recent studies started comparing TE accumulation in plant compartments versus both water column and sediment characteristics. In this study, six TEs (As, Cd, Cr, Cu, Ni, Pb) were analyzed in P. oceanica shoots related to depth (-10 and -20 m) and to TE concentrations in the different grain size fractions of the sediment, from two Sites of Community interest (SIC) in the central Tyrrhenian Sea. TE concentrations in both shoots and sediment were generally low, except for Cr. Cu was the only element showing significantly different concentrations at the two sites while As differed significantly between samples taken at different depths. TE concentrations in the unsieved sediment were found uncorrelated to TEs in shoots except for the important nutrient Cu (positive correlation). The finest sediment fractions were enriched in TEs and significantly correlated to Cd, Cr, Cu, and Ni concentrations in the shoots.
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Affiliation(s)
- I Bravo
- Department of Business and Law, University of Cassino, Via S. Angelo-Campus, Folcara, 030343, Cassino, Italy.
| | - F Focaracci
- Department of Ecological and Biological Sciences, Tuscia University, Viale dell'Università s/n, 01100, Viterbo, Italy.
| | - F Cerfolli
- Department of Ecological and Biological Sciences, Tuscia University, Viale dell'Università s/n, 01100, Viterbo, Italy.
| | - P Papetti
- Department of Business and Law, University of Cassino, Via S. Angelo-Campus, Folcara, 030343, Cassino, Italy.
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25
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Apostolopoulou MV, Monteyne E, Krikonis K, Pavlopoulos K, Roose P, Dehairs F. n-Alkanes and stable C, N isotopic compositions as identifiers of organic matter sources in Posidonia oceanica meadows of Alexandroupolis Gulf, NE Greece. MARINE POLLUTION BULLETIN 2015; 99:346-355. [PMID: 26194407 DOI: 10.1016/j.marpolbul.2015.07.033] [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: 03/02/2015] [Revised: 07/12/2015] [Accepted: 07/14/2015] [Indexed: 06/04/2023]
Abstract
We analyzed n-alkane contents and their stable carbon isotope composition, as well as the carbon and nitrogen isotope composition (δ(13)C, δ(15)N) of sediment organic matter and different tissues of Posidonia oceanica seagrass sampled in Alexandroupolis Gulf (A.G.), north-eastern Greece, during 2007-2011. n-Alkane contents in P. oceanica and in sediments showed similar temporal trends, but relative to bulk organic carbon content, n-alkanes were much more enriched in sediments compared to seagrass tissue. Individual n-alkanes in sediments had similar values than seagrass roots and rhizomes and were more depleted in (13)C compared to seagrass leaves and sheaths, with δ(13)C values ranging from -35‰ to -28‰ and from -25‰ to -20‰, respectively. n-Alkane indexes such as the Carbon Preference Index, carbon number maximum, and n-alkane proxy 1 (C23+C25/C23+C25+C29+C31) indicate strong inputs of terrestrial organic matter, while the presence of unresolved complex mixtures suggests potential oil pollution in some sampled areas.
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Affiliation(s)
- Maria-Venetia Apostolopoulou
- Analytical, Environmental and Geo-Chemistry and Earth System Sciences Research Group, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium.
| | - Els Monteyne
- Royal Belgian Institute of Natural Sciences, Operational Directorate Natural Environments, ECOCHEM, 3e & 23e Linieregimentsplein, B-8400 Ostend, Belgium.
| | | | - Kosmas Pavlopoulos
- Department of Geography and Planning, Paris-Sorbonne University Abu Dhabi, P.O. Box 38044, Al Reem Island, United Arab Emirates.
| | - Patrick Roose
- Royal Belgian Institute of Natural Sciences, Operational Directorate Natural Environments, ECOCHEM, 3e & 23e Linieregimentsplein, B-8400 Ostend, Belgium.
| | - Frank Dehairs
- Analytical, Environmental and Geo-Chemistry and Earth System Sciences Research Group, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium.
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26
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Giakoumi S, Halpern BS, Michel LN, Gobert S, Sini M, Boudouresque CF, Gambi MC, Katsanevakis S, Lejeune P, Montefalcone M, Pergent G, Pergent-Martini C, Sanchez-Jerez P, Velimirov B, Vizzini S, Abadie A, Coll M, Guidetti P, Micheli F, Possingham HP. Towards a framework for assessment and management of cumulative human impacts on marine food webs. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2015; 29:1228-1234. [PMID: 25704365 DOI: 10.1111/cobi.12468] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Accepted: 12/20/2014] [Indexed: 06/04/2023]
Abstract
Effective ecosystem-based management requires understanding ecosystem responses to multiple human threats, rather than focusing on single threats. To understand ecosystem responses to anthropogenic threats holistically, it is necessary to know how threats affect different components within ecosystems and ultimately alter ecosystem functioning. We used a case study of a Mediterranean seagrass (Posidonia oceanica) food web and expert knowledge elicitation in an application of the initial steps of a framework for assessment of cumulative human impacts on food webs. We produced a conceptual seagrass food web model, determined the main trophic relationships, identified the main threats to the food web components, and assessed the components' vulnerability to those threats. Some threats had high (e.g., coastal infrastructure) or low impacts (e.g., agricultural runoff) on all food web components, whereas others (e.g., introduced carnivores) had very different impacts on each component. Partitioning the ecosystem into its components enabled us to identify threats previously overlooked and to reevaluate the importance of threats commonly perceived as major. By incorporating this understanding of system vulnerability with data on changes in the state of each threat (e.g., decreasing domestic pollution and increasing fishing) into a food web model, managers may be better able to estimate and predict cumulative human impacts on ecosystems and to prioritize conservation actions.
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Affiliation(s)
- Sylvaine Giakoumi
- Institute of Marine Biological Resources and Inland Waters, Hellenic Centre for Marine Research, Ag. Kosmas, Greece
- ARC Centre of Excellence for Environmental Decisions, School of Biological Sciences, The University of Queensland, Brisbane, Queensland, Australia
| | - Benjamin S Halpern
- Bren School of Environmental Science and Management, University of California, Santa Barbara, CA, 93106, U.S.A
- Imperial College London, Silwood Park Campus, Buckhurst Road, Ascot, SL57PY, United Kingdom
| | - Loïc N Michel
- STARESO Research Station, Revellata Cape, 20260, Calvi, France
- Oceanologie Laboratory of Oceanology, B6c Bat Chimie, University of Liege, Sart Tilman, MARE and AFFishCentres, B4000, Liege, Belgium
| | - Sylvie Gobert
- Oceanologie Laboratory of Oceanology, B6c Bat Chimie, University of Liege, Sart Tilman, MARE and AFFishCentres, B4000, Liege, Belgium
| | - Maria Sini
- Department of Marine Sciences, University of the Aegean, University Hill, Mytilene, Lesvos Island, 81100, Greece
| | - Charles-François Boudouresque
- Mediterranean Institute of Oceanography (MIO), Aix-Marseille University and Toulon University, CNRS/IRD, UM 110, Campus of Luminy, 13288, Marseille Cedex 9, France
| | - Maria-Cristina Gambi
- Stazione Zoologica Anton Dohrn, Napoli - Laboratory of Functional and Evolutionary Ecology, Villa Comunale, 80121, Napoli, Italy
| | - Stelios Katsanevakis
- European Commission, Joint Research Centre, Institute for Environment and Sustainability, Ispra, Italy
| | - Pierre Lejeune
- STARESO Research Station, Revellata Cape, 20260, Calvi, France
| | - Monica Montefalcone
- DiSTAV, Department of Earth, Environment and Life Sciences, University of Genoa, Corso Europa 26, 16132, Genoa, Italy
| | - Gerard Pergent
- EqEL, FRES 3041, University of Corsica, BP 52, 20250, Corte, France
| | | | - Pablo Sanchez-Jerez
- Department of Marine Science and Applied Biology, University of Alicante, P.O. Box 99, 03080, Spain
| | - Branko Velimirov
- Center of Pathobiochemistry and Genetics, Medical University of Vienna, Währingerstr.10/19, A-1090, Vienna, Austria
| | - Salvatrice Vizzini
- Department of Earth and Marine Sciences, University of Palermo, CoNISMa, via Archirafi 18, 90123, Palermo, Italy
| | - Arnaud Abadie
- STARESO Research Station, Revellata Cape, 20260, Calvi, France
- Oceanologie Laboratory of Oceanology, B6c Bat Chimie, University of Liege, Sart Tilman, MARE and AFFishCentres, B4000, Liege, Belgium
| | - Marta Coll
- Institut de Recherche pour le Développement, UMR MARBEC (IRD, Ifremer, UM, CNRS), Avenue Jean Monnet, BP 171, 34203, Sète Cedex, France
| | - Paolo Guidetti
- Université Nice Sophia Antipolis, Faculté des Sciences, EA 4228 ECOMERS, Nice, France
| | - Fiorenza Micheli
- Hopkins Marine Station, Stanford University, Pacific Grove, CA, 93950, U.S.A
| | - Hugh P Possingham
- ARC Centre of Excellence for Environmental Decisions, School of Biological Sciences, The University of Queensland, Brisbane, Queensland, Australia
- Imperial College London, Silwood Park Campus, Buckhurst Road, Ascot, SL57PY, United Kingdom
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27
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Ourgaud M, Ruitton S, Bell JD, Letourneur Y, Harmelin JG, Harmelin-Vivien ML. Response of a seagrass fish assemblage to improved wastewater treatment. MARINE POLLUTION BULLETIN 2015; 90:25-32. [PMID: 25499183 DOI: 10.1016/j.marpolbul.2014.11.038] [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: 08/25/2014] [Revised: 11/20/2014] [Accepted: 11/24/2014] [Indexed: 06/04/2023]
Abstract
We compared the structure of a seagrass fish assemblage near a sewage outlet before and after improvements to wastewater treatment. To determine whether responses by the fish assemblage were due to changes in water quality or to other factors, comparisons were made with the structure of a fish assemblage from a nearby site unaffected by sewage effluent. Total species richness, density and biomass of fish, decreased at both sites over the 30-year period. An increase in mean trophic level near the sewage outlet following improvements in water quality indicated that wastewater treatment had another important effect. This result is consistent with the reductions in food webs supporting pelagic and benthic fishes that typically accompany decreases in nutrient inputs. Although improvements to wastewater treatment explained much of the variation in the structure of the fish assemblage at PC, our results also suggest that fishing and climate change, at both sites.
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Affiliation(s)
- M Ourgaud
- Mediterranean Institute of Oceanography (MIO), Aix-Marseille Université, CNRS, Toulon Université, IRD, MIO UM 110, 13288 Marseille Cedex 09, France.
| | - S Ruitton
- Mediterranean Institute of Oceanography (MIO), Aix-Marseille Université, CNRS, Toulon Université, IRD, MIO UM 110, 13288 Marseille Cedex 09, France
| | - J D Bell
- Australian National Centre for Ocean Resources and Security, University of Wollongong, NSW 2522, Australia
| | - Y Letourneur
- Université de la Nouvelle Calédonie, Laboratoire LIVE and LABEX «Corail», BP R4, 98851 Nouméa Cedex, New Caledonia
| | - J G Harmelin
- GIS Posidonie & Mediterranean Institute of Oceanography (MIO), Aix-Marseille Université, Station Marine d'Endoume, 13007 Marseille, France
| | - M L Harmelin-Vivien
- Mediterranean Institute of Oceanography (MIO), Aix-Marseille Université, CNRS, Toulon Université, IRD, MIO UM 110, 13288 Marseille Cedex 09, France
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