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Lourtie A, Eeckhaut I, Mallefet J, Savarino P, Isorez M, Mussoi L, Bischoff H, Delroisse J, Hédouin L, Gerbaux P, Caulier G. Species-specific metabolites mediate host selection and larval recruitment of the symbiotic seastar shrimp. Sci Rep 2023; 13:12674. [PMID: 37542089 PMCID: PMC10403617 DOI: 10.1038/s41598-023-39527-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 07/26/2023] [Indexed: 08/06/2023] Open
Abstract
In marine environments, host selection, defining how symbiotic organisms recognize and interact with their hosts, is often mediated by olfactory communication. Although adult symbionts may select their hosts detecting chemosensory cues, no information is available concerning the recruitment of symbiotic larvae which is a crucial step to sustain symbioses over generations. This study investigates the olfactory recognition of seastar hosts by adult Zenopontonia soror shrimps and the recruitment of their larvae. We examine the semiochemicals that influence host selection using chemical extractions, behavioural experiments in olfactometers, and mass spectrometry analyses. After describing the symbiotic population and the embryonic development of shrimps, our results demonstrate that asterosaponins, which are traditionally considered as chemical defences in seastars, are species-specific and play a role in attracting the symbiotic shrimps. Adult shrimps were found to be attracted only by their original host species Culcita novaeguineae, while larvae were attracted by different species of seastars. This study provides the first chemical identification of an olfactory cue used by larvae of symbiotic organisms to locate their host for recruitment. These findings highlight the importance of chemical communication in the mediation of symbiotic associations, which has broader significant implications for understanding the ecological dynamics of marine ecosystems.
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Affiliation(s)
- Alexia Lourtie
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, University of Mons-UMONS, 23 Place du Parc, 7000, Mons, Belgium.
- Marine Biology Laboratory, Earth and Life Institute, University UCLouvain, Croix du sud 3/L7.06.04, 1348, Louvain-la-Neuve, Belgium.
| | - Igor Eeckhaut
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, University of Mons-UMONS, 23 Place du Parc, 7000, Mons, Belgium
- Belaza Marine Station (IH.SM-UMONS-ULIEGE), Toliara, Madagascar
| | - Jérôme Mallefet
- Marine Biology Laboratory, Earth and Life Institute, University UCLouvain, Croix du sud 3/L7.06.04, 1348, Louvain-la-Neuve, Belgium
| | - Philippe Savarino
- Organic Synthesis and Mass Spectrometry Laboratory, Research Institute for Biosciences, University of Mons-UMONS, 23 Place du Parc, 7000, Mons, Belgium
| | - Mathilde Isorez
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, University of Mons-UMONS, 23 Place du Parc, 7000, Mons, Belgium
| | - Lisa Mussoi
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, University of Mons-UMONS, 23 Place du Parc, 7000, Mons, Belgium
| | - Hugo Bischoff
- PSL Research University: EPHE-CNRS-UPVD, USR 3278 CRIOBE, BP 1013, 98729, Papetoai, Mo'orea, French Polynesia
- Laboratoire d'Excellence CORAIL, Mo'orea, French Polynesia
| | - Jérôme Delroisse
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, University of Mons-UMONS, 23 Place du Parc, 7000, Mons, Belgium
| | - Laetitia Hédouin
- PSL Research University: EPHE-CNRS-UPVD, USR 3278 CRIOBE, BP 1013, 98729, Papetoai, Mo'orea, French Polynesia
- Laboratoire d'Excellence CORAIL, Mo'orea, French Polynesia
| | - Pascal Gerbaux
- Organic Synthesis and Mass Spectrometry Laboratory, Research Institute for Biosciences, University of Mons-UMONS, 23 Place du Parc, 7000, Mons, Belgium
| | - Guillaume Caulier
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, University of Mons-UMONS, 23 Place du Parc, 7000, Mons, Belgium.
- Belaza Marine Station (IH.SM-UMONS-ULIEGE), Toliara, Madagascar.
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Reanalysis shows there is not an extreme decline effect in fish ocean acidification studies. PLoS Biol 2022; 20:e3001809. [PMID: 36413526 PMCID: PMC9681065 DOI: 10.1371/journal.pbio.3001809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 08/30/2022] [Indexed: 11/23/2022] Open
Abstract
This Formal Comment uses re-analysis after appropriate corrections to claim that the extreme decline effect reported by Clements et al. is a statistical artefact caused by the way they corrected for zeros in percentage data, exacerbated by errors in data compilation, selective data inclusions and missing studies with strong effects.
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Thomas JT, Spady BL, Munday PL, Watson SA. The role of ligand-gated chloride channels in behavioural alterations at elevated CO2 in a cephalopod. J Exp Biol 2021; 224:269059. [PMID: 34100547 DOI: 10.1242/jeb.242335] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 05/30/2021] [Indexed: 11/20/2022]
Abstract
Projected future carbon dioxide (CO2) levels in the ocean can alter marine animal behaviours. Disrupted functioning of γ-aminobutyric acid type A (GABAA) receptors (ligand-gated chloride channels) is suggested to underlie CO2-induced behavioural changes in fish. However, the mechanisms underlying behavioural changes in marine invertebrates are poorly understood. We pharmacologically tested the role of GABA-, glutamate-, acetylcholine- and dopamine-gated chloride channels in CO2-induced behavioural changes in a cephalopod, the two-toned pygmy squid (Idiosepius pygmaeus). We exposed squid to ambient (∼450 µatm) or elevated (∼1000 µatm) CO2 for 7 days. Squid were treated with sham, the GABAA receptor antagonist gabazine or the non-specific GABAA receptor antagonist picrotoxin, before measurement of conspecific-directed behaviours and activity levels upon mirror exposure. Elevated CO2 increased conspecific-directed attraction and aggression, as well as activity levels. For some CO2-affected behaviours, both gabazine and picrotoxin had a different effect at elevated compared with ambient CO2, providing robust support for the GABA hypothesis within cephalopods. In another behavioural trait, picrotoxin but not gabazine had a different effect in elevated compared with ambient CO2, providing the first pharmacological evidence, in fish and marine invertebrates, for altered functioning of ligand-gated chloride channels, other than the GABAAR, underlying CO2-induced behavioural changes. For some other behaviours, both gabazine and picrotoxin had a similar effect in elevated and ambient CO2, suggesting altered function of ligand-gated chloride channels was not responsible for these CO2-induced changes. Multiple mechanisms may be involved, which could explain the variability in the CO2 and drug treatment effects across behaviours.
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Affiliation(s)
- Jodi T Thomas
- ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD 4811, Australia
| | - Blake L Spady
- Coral Reef Watch, National Oceanic and Atmospheric Administration, College Park, MD 20740, USA.,ReefSense Pty Ltd., Cranbrook, QLD 4814, Australia
| | - Philip L Munday
- ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD 4811, Australia
| | - Sue-Ann Watson
- ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD 4811, Australia.,Biodiversity and Geosciences Program, Museum of Tropical Queensland, Queensland Museum Network, Townsville, QLD 4810, Australia
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Manríquez PH, Jara ME, González CP, Seguel ME, Domenici P, Watson SA, Anguita C, Duarte C, Brokordt K. The combined effects of climate change stressors and predatory cues on a mussel species. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 776:145916. [PMID: 33639464 DOI: 10.1016/j.scitotenv.2021.145916] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 02/11/2021] [Accepted: 02/12/2021] [Indexed: 06/12/2023]
Abstract
In order to make adequate projections on the consequences of climate change stressors on marine organisms, it is important to know how impacts of these stressors are affected by the presence of other species. Here we assessed the direct effects of ocean warming (OW) and acidification (OA) along with non-consumptive effects (NCEs) of a predatory crab and/or a predatory snail on the habitat-forming mussel Perumytilus purpuratus. Mussels were exposed for 10-14 weeks to contrasting pCO2 (500 and 1400 μatm) and temperature (15 and 20 °C) levels, in the presence/absence of cues from one or two predator species. We compared mussel traits at sub-organismal (nutritional status, metabolic capacity-ATP production-, cell stress condition via HSP70 expression) and organismal (survival, oxygen consumption, growth, byssus biogenesis, clearance rates, aggregation) levels. OA increased the mussels' oxygen consumption; and OA combined with OW increased ATP demand and the use of carbohydrate reserves. Mussels at present-day pCO2 levels had the highest protein content. Under OW the predatory snail cues induced the highest cell stress condition on the mussels. Temperature, predator cues and the interaction between them affected mussel growth. Mussels grew larger at the control temperature (15 °C) when crab and snail cues were present. Mussel wet mass and calcification were affected by predator cues; with highest values recorded in crab cue presence (isolated or combined with snail cues). In the absence of predator cues in the trails, byssus biogenesis was affected by OA, OW and the OA × OW and OA × predator cues interactions. At present-day pCO2 levels, more byssus was recorded with snail than with crab cues. Clearance rates were affected by temperature, pCO2 and the interaction between them. The investigated stressors had no effects on mussel aggregation. We conclude that OA, OW and the NCEs may lead to neutral, positive or negative consequences for mussels.
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Affiliation(s)
- Patricio H Manríquez
- Centro de Estudios Avanzados en Zonas Áridas (CEAZA), Coquimbo, Chile; Laboratorio de Ecología y Conducta de la Ontogenia Temprana (LECOT), Coquimbo, Chile.
| | - María Elisa Jara
- Centro de Estudios Avanzados en Zonas Áridas (CEAZA), Coquimbo, Chile; Laboratorio de Ecología y Conducta de la Ontogenia Temprana (LECOT), Coquimbo, Chile
| | - Claudio P González
- Centro de Estudios Avanzados en Zonas Áridas (CEAZA), Coquimbo, Chile; Laboratorio de Ecología y Conducta de la Ontogenia Temprana (LECOT), Coquimbo, Chile
| | - Mylene E Seguel
- Centro de Estudios Avanzados en Zonas Áridas (CEAZA), Coquimbo, Chile; Laboratorio de Ecología y Conducta de la Ontogenia Temprana (LECOT), Coquimbo, Chile
| | - Paolo Domenici
- CNR-IBF Istituto di Biofisica, Pisa, Area di Ricerca San Cataldo, Via G. Moruzzi N° 1 - 56124, Pisa, Italy
| | - Sue-Ann Watson
- Biodiversity and Geosciences Program, Museum of Tropical Queensland, Queensland Museum, Townsville, Queensland 4810, Australia; Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, Queensland 4811, Australia
| | - Cristóbal Anguita
- Laboratorio de Ecología de Vida Silvestre, Facultad de Ciencias Forestales y Conservación de la Naturaleza, Universidad de Chile, Av. Santa Rosa 11315, La Pintana, Santiago, Chile
| | - Cristian Duarte
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile; Centro de Investigación Marina de Quintay (CIMARQ), Facultad de Ciencias de la Vida, Universidad Andrés Bello, Chile
| | - Katherina Brokordt
- Laboratorio de Fisiología y Genética Marina (FIGEMA), Departamento de Acuicultura, Facultad de Ciencias de Mar, Universidad Católica del Norte, Coquimbo, Chile; Centro de Estudios Avanzados en Zonas Áridas (CEAZA), Coquimbo, Chile
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Roux N, Salis P, Laudet V. [Metamorphosis of marine fish larvae and thyroid hormones]. Biol Aujourdhui 2019; 213:27-33. [PMID: 31274100 DOI: 10.1051/jbio/2019010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Indexed: 06/09/2023]
Abstract
Life history transitions are critical for many animal species and often correspond to concomitant developmental and ecological shifts. However, to date, little is known on how internal and external cues act together during these events. The life cycle of most teleostean reef fish includes a major developmental and ecological transition. Adults reproduce in the vicinity of the reef, emitting eggs that disperse and hatch in the ocean, where the larvae grow. Thereafter, larvae migrate back towards reefs where they settle and persist, at a step called larval recruitment. Larval recruitment involves the perception of environmental cues for larvae to localize and select their new benthic habitat, and is accompanied by major morphological changes. This ecological and developmental transition of pelagic larvae into reef-associated juveniles, often referred to as metamorphosis, are under the control of Thyroid Hormones (TH: T4, T3) and their receptors (TRαa, TRαb and TRβ). This step is critical for the maintenance of reef fish populations, but its molecular control remains largely unknown. Recent results have brought new insights on coral reef fish metamorphosis. We have shown that TH and TR coordinate the metamorphosis that occurs during the entry in the reef of two coral reef fishes, the surgeon fish Acanthurus triostegus, and the clown fish Amphiprion ocellaris. We demonstrated an increase of TH-levels and TR-expression in the larvae, followed by a decrease in deriving juvenile. We observed similar trends (although with different dynamics and/or magnitude) in other coral reef fish species, therefore allowing us to generalize these observations. Interestingly, functional experiments such as treatments with pharmacological compounds exhibiting antagonist activity interfere with the surgeonfish and the clown fish larval transformation demonstrating a direct role of these hormones in controlling metamorphosis. All these results and in particular the dependency on thyroid hormones of the larval to juvenile transformation suggest that this step can be sensitive to disruption by environmental pollutants, such as endocrine disruptors. Using as model compound, chlorpyrifos, a pesticide often encountered in coral reefs, we showed that it impairs surgeonfish as well as clown fish transformation, hence diminishing the quality of the juvenile emerging from this transition. Larval recruitment in coral reef fish therefore corresponds to a TH-controlled metamorphosis, sensitive to endocrine disruption. Since metamorphosis and larval recruitment are essential for the maintenance of fish populations and subsequent coral reef resilience, it is important to better understand, at the molecular, anatomical and behavioral levels, how global changes and water pollution can threaten reef ecosystems.
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Affiliation(s)
- Natacha Roux
- Observatoire Océanologique de Banyuls-sur-Mer, UMR CNRS 7232 Biologie Intégrative des Organismes Marins, Sorbonne Université, 1 avenue Pierre Fabre, 66650 Banyuls-sur-Mer, France
| | - Pauline Salis
- Observatoire Océanologique de Banyuls-sur-Mer, UMR CNRS 7232 Biologie Intégrative des Organismes Marins, Sorbonne Université, 1 avenue Pierre Fabre, 66650 Banyuls-sur-Mer, France
| | - Vincent Laudet
- Observatoire Océanologique de Banyuls-sur-Mer, UMR CNRS 7232 Biologie Intégrative des Organismes Marins, Sorbonne Université, 1 avenue Pierre Fabre, 66650 Banyuls-sur-Mer, France
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6
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Roux N, Salis P, Lambert A, Logeux V, Soulat O, Romans P, Frédérich B, Lecchini D, Laudet V. Staging and normal table of postembryonic development of the clownfish (Amphiprion ocellaris). Dev Dyn 2019; 248:545-568. [PMID: 31070818 PMCID: PMC6771578 DOI: 10.1002/dvdy.46] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 04/17/2019] [Accepted: 04/17/2019] [Indexed: 12/19/2022] Open
Abstract
Background The clownfish Amphiprion ocellaris is one of the rare coral reef fish species that can be reared in aquaria. With relatively short embryonic and larval development, it could be used as a model species to study the impact of global changes such as temperature rise or anthropogenic threats (eg, pollution) on the postembryonic development at molecular and endocrinological levels. Establishing a developmental table allows us to standardize sampling for the scientific community willing to conduct experiments on this species on different areas: ecology, evolution, and developmental biology. Results Here, we describe the postembryonic developmental stages for the clownfish A. ocellaris from hatching to juvenile stages (30 days posthatching). We quantitatively followed the postembryonic growth and described qualitative traits: head, paired and unpaired fins, notochord flexion, and pigmentation changes. The occurrence of these changes over time allowed us to define seven stages, for which we provide precise descriptions. Conclusions Our work gives an easy system to determine A. ocellaris postembryonic stages allowing, thus, to develop this species as a model species for coral reef fishes. In light of global warming, the access to the full postembryonic development stages of coral reef fish is important to determine stressors that can affect such processes. Seven developmental stages have been identified to describe the larval development of the clownfish Amphiprion ocellaris. Clownfish larvae undergo two distinct developmental growth phases that correspond to growth and metamorphosis. A dichotomous key determination has been created to assist users in identifying the various developmental stages.
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Affiliation(s)
- Natacha Roux
- Observatoire Océanologique de Banyuls-sur-Mer, CNRS UMR 7232 BIOM, Sorbonne Université, Banyuls-sur-Mer, France.,PSL Research University, USR 3278, EPHE-CNRS-UPVD, Moorea, French Polynesia
| | - Pauline Salis
- Observatoire Océanologique de Banyuls-sur-Mer, CNRS UMR 7232 BIOM, Sorbonne Université, Banyuls-sur-Mer, France
| | - Anne Lambert
- Institut de Génomique Fonctionnelle de Lyon, Université Claude Bernard Lyon, Ecole Normale Supérieure de Lyon, Lyon, France
| | - Valentin Logeux
- Observatoire Océanologique de Banyuls-sur-Mer, CNRS UMR 7232 BIOM, Sorbonne Université, Banyuls-sur-Mer, France
| | - Olivier Soulat
- Aquarium de Canet-en-Roussillon, Canet-en-Roussillon, France
| | - Pascal Romans
- Observatoire Océanologique de Banyuls-sur-Mer, CNRS UMR 7232 BIOM, Sorbonne Université, Banyuls-sur-Mer, France
| | - Bruno Frédérich
- Laboratory of Functional and Evolutionary Morphology, FOCUS, University of Liège, Liège, Belgium
| | - David Lecchini
- PSL Research University, USR 3278, EPHE-CNRS-UPVD, Moorea, French Polynesia.,Laboratoire d'Excellence CORAIL, Moorea, French Polynesia
| | - Vincent Laudet
- Observatoire Océanologique de Banyuls-sur-Mer, CNRS UMR 7232 BIOM, Sorbonne Université, Banyuls-sur-Mer, France
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Draper AM, Weissburg MJ. Impacts of Global Warming and Elevated CO2 on Sensory Behavior in Predator-Prey Interactions: A Review and Synthesis. Front Ecol Evol 2019. [DOI: 10.3389/fevo.2019.00072] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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Bertucci F, Jacob H, Mignucci A, Gache C, Roux N, Besson M, Berthe C, Metian M, Lecchini D. Decreased retention of olfactory predator recognition in juvenile surgeon fish exposed to pesticide. CHEMOSPHERE 2018; 208:469-475. [PMID: 29886335 DOI: 10.1016/j.chemosphere.2018.06.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 06/01/2018] [Accepted: 06/03/2018] [Indexed: 06/08/2023]
Abstract
Dory, the animated surgeonfish created by the Pixar Animation studios, famously suffered from short-term memory loss leading to many adventures. In reality, many fishes have excellent cognitive abilities and are able to learn and retain important information such as the identity of predators. However, if and how cognition can be affected by anthropogenically altered oceanic conditions is poorly understood. Here, we examine the effect of a widely used pesticide, chlorpyrifos, on the retention of acquired predator recognition in post-larval stage of the surgeonfish Acanthurus triostegus. Through associative learning, post-larvae of A. triostegus were first observed to forage significantly less in the presence of conspecific alarm cues and alarm cues associated to a predator's odor. The retention of this anti-predator behavior was estimated to last between 2 and 5 days in the absence of pesticide. However, environmentally-relevant concentrations of chlorpyrifos (1 μg.L-1) induced the loss of this acquired predator recognition. This reduced ability to recognize learned predators is discussed as it may lead to more vulnerable fish communities in coastal areas subjected to organophosphate pesticide pollution.
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Affiliation(s)
- Frédéric Bertucci
- PSL University Paris, EPHE-UPVD-CNRS, USR3278 CRIOBE, 98729 Papetoai, Moorea, French Polynesia; Laboratoire de Morphologie Fonctionnelle et Evolutive, Université de Liège, Campus Sart Tilman, Bât. B6c, Allée de la Chimie 3, 4000 Liège, Belgium.
| | - Hugo Jacob
- PSL University Paris, EPHE-UPVD-CNRS, USR3278 CRIOBE, 98729 Papetoai, Moorea, French Polynesia; International Atomic Energy Agency, Environment Laboratories, 4a, Quai Antoine 1er, Principality of Monaco, Monaco
| | - Alexandre Mignucci
- PSL University Paris, EPHE-UPVD-CNRS, USR3278 CRIOBE, 98729 Papetoai, Moorea, French Polynesia
| | - Camille Gache
- PSL University Paris, EPHE-UPVD-CNRS, USR3278 CRIOBE, 98729 Papetoai, Moorea, French Polynesia
| | - Natacha Roux
- PSL University Paris, EPHE-UPVD-CNRS, USR3278 CRIOBE, 98729 Papetoai, Moorea, French Polynesia; Observatoire Océanologique de Banyuls-sur-Mer, UMR7232, Université Pierre et Marie Curie Paris, 1 avenue du Fontaulé, 66650 Banyuls-sur-Mer, France
| | - Marc Besson
- PSL University Paris, EPHE-UPVD-CNRS, USR3278 CRIOBE, 98729 Papetoai, Moorea, French Polynesia; Observatoire Océanologique de Banyuls-sur-Mer, UMR7232, Université Pierre et Marie Curie Paris, 1 avenue du Fontaulé, 66650 Banyuls-sur-Mer, France
| | - Cécile Berthe
- PSL University Paris, EPHE-UPVD-CNRS, USR3278 CRIOBE, 98729 Papetoai, Moorea, French Polynesia
| | - Marc Metian
- International Atomic Energy Agency, Environment Laboratories, 4a, Quai Antoine 1er, Principality of Monaco, Monaco
| | - David Lecchini
- PSL University Paris, EPHE-UPVD-CNRS, USR3278 CRIOBE, 98729 Papetoai, Moorea, French Polynesia; Laboratoire d'Excellence "CORAIL", Moorea, French Polynesia
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