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Firth LB, Curd A, Hawkins SJ, Knights AM, Blaze JA, Burrows MT, Dubois SF, Edwards H, Foggo A, Gribben PE, Grant L, Harris D, Mieszkowska N, Nunes FLD, Nunn JD, Power AM, O'Riordan RM, McGrath D, Simkanin C, O'Connor NE. On the diversity and distribution of a data deficient habitat in a poorly mapped region: The case of Sabellaria alveolata L. in Ireland. Mar Environ Res 2021; 169:105344. [PMID: 34015675 DOI: 10.1016/j.marenvres.2021.105344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 04/19/2021] [Accepted: 04/25/2021] [Indexed: 06/12/2023]
Abstract
Data that can be used to monitor biodiversity through time are essential for conservation and management. The reef-forming worm, Sabellaria alveolata (L. 1767) is currently classed as 'Data Deficient' due to an imbalance in the spread of data on its distribution. Little is known about the distribution of this species around Ireland. Using data archaeology, we collated past and present distribution records and discovered that S. alveolata has a discontinuous distribution with large gaps between populations. Many regions lack data and should be targeted for sampling. Biodiversity surveys revealed that S. alveolata supported diverse epibiotic algal communities. Retrograding (declining) reefs supported greater infaunal diversity than prograding (growing) reefs or sand, suggesting that S. alveolata is a dynamic ecosystem engineer that has a lasting legacy effect. Similar research should be carried out for other Data Deficient species, habitats and regions. Such data are invaluable resources for management and conservation.
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Affiliation(s)
- Louise B Firth
- School of Biological and Marine Sciences, University of Plymouth, Plymouth, UK; Zoology, School of Natural Sciences, National University of Ireland Galway, Galway, Ireland
| | | | - Stephen J Hawkins
- School of Biological and Marine Sciences, University of Plymouth, Plymouth, UK; Marine Biological Association of the UK, Plymouth, UK; School of Ocean and Earth Science, National Oceanography Centre Southampton, University of Southampton, Southampton, UK
| | - Antony M Knights
- School of Biological and Marine Sciences, University of Plymouth, Plymouth, UK
| | - Julie A Blaze
- Odum School of Ecology, University of Georgia, Athens, USA
| | | | | | - Hugh Edwards
- Department of Agriculture, Environment and Rural Affairs, Belfast, UK
| | - Andy Foggo
- School of Biological and Marine Sciences, University of Plymouth, Plymouth, UK
| | - Paul E Gribben
- Centre for Marine Innovation, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, Australia; Sydney Institute of Marine Science, Sydney, Australia
| | - Lisa Grant
- Zoology, School of Natural Sciences, National University of Ireland Galway, Galway, Ireland
| | - Daniel Harris
- Estuary & Ocean Science Center, San Francisco State University, California, USA
| | - Nova Mieszkowska
- Marine Biological Association of the UK, Plymouth, UK; Department of Ocean, Earth and Ecological Sciences, University of Liverpool, Liverpool, UK
| | | | - Julia D Nunn
- Centre for Environmental Data & Recording, National Museums Northern Ireland, Holywood, UK; 2 Windmill Lane, Portaferry, UK
| | - Anne Marie Power
- Zoology, School of Natural Sciences, National University of Ireland Galway, Galway, Ireland
| | - Ruth M O'Riordan
- School of Biological, Earth and Environmental Sciences and Aquaculture and Fisheries Development Centre, Environmental Research Institute, University College Cork, Cork, Ireland
| | - David McGrath
- Galway-Mayo Institute of Technology, Galway, Ireland
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Firth LB, Harris D, Blaze JA, Marzloff MP, Boyé A, Miller PI, Curd A, Vasquez M, Nunn JD, O’Connor NE, Power AM, Mieszkowska N, O’Riordan RM, Burrows MT, Bricheno LM, Knights AM, Nunes FLD, Bordeyne F, Bush LE, Byers JE, David C, Davies AJ, Dubois SF, Edwards H, Foggo A, Grant L, Green JAM, Gribben PE, Lima FP, McGrath D, Noël LMLJ, Seabra R, Simkanin C, Hawkins SJ. Specific niche requirements underpin multidecadal range edge stability, but may introduce barriers for climate change adaptation. DIVERS DISTRIB 2021. [DOI: 10.1111/ddi.13224] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Louise B. Firth
- School of Biological and Marine Sciences University of Plymouth Plymouth UK
- Zoology, School of Natural Sciences National University of Ireland Galway Galway Ireland
| | - Daniel Harris
- Estuary & Ocean Science Center San Francisco State University San Francisco CA USA
| | - Julie A. Blaze
- Odum School of Ecology University of Georgia Athens GA USA
| | - Martin P. Marzloff
- DYNECO, Laboratory of Coastal Benthic Ecology Ifremer ‐ Centre de Bretagne Plouzané France
| | - Aurélien Boyé
- DYNECO, Laboratory of Coastal Benthic Ecology Ifremer ‐ Centre de Bretagne Plouzané France
| | | | - Amelia Curd
- DYNECO, Laboratory of Coastal Benthic Ecology Ifremer ‐ Centre de Bretagne Plouzané France
| | - Mickaël Vasquez
- DYNECO, Laboratory of Coastal Benthic Ecology Ifremer ‐ Centre de Bretagne Plouzané France
| | - Julia D. Nunn
- Centre for Environmental Data & Recording National Museums Northern Ireland Holywood UK
- 2 Windmill Lane Portaferry UK
| | | | - Anne Marie Power
- Zoology, School of Natural Sciences National University of Ireland Galway Galway Ireland
| | - Nova Mieszkowska
- Marine Biological Association of the UK Plymouth UK
- School of Environmental Sciences University of Liverpool Liverpool UK
| | - Ruth M. O’Riordan
- School of Biological, Earth and Environmental Sciences and Aquaculture and Fisheries Development Centre Environmental Research Institute University College Cork Cork Ireland
| | | | | | - Antony M. Knights
- School of Biological and Marine Sciences University of Plymouth Plymouth UK
| | - Flavia L. D. Nunes
- DYNECO, Laboratory of Coastal Benthic Ecology Ifremer ‐ Centre de Bretagne Plouzané France
| | - François Bordeyne
- Sorbonne Université Station Biologique de Roscoff, CNRS, UMR AD2M Adaptation et Diversité en Milieu Marin Roscoff France
| | - Laura E. Bush
- School of Ocean Sciences Bangor University Menai Bridge UK
| | - James E. Byers
- Odum School of Ecology University of Georgia Athens GA USA
| | - Carmen David
- DYNECO, Laboratory of Coastal Benthic Ecology Ifremer ‐ Centre de Bretagne Plouzané France
| | - Andrew J. Davies
- School of Ocean Sciences Bangor University Menai Bridge UK
- College of the Environment and Life Sciences University of Rhode Island Kingston RI USA
| | - Stanislas F. Dubois
- DYNECO, Laboratory of Coastal Benthic Ecology Ifremer ‐ Centre de Bretagne Plouzané France
| | - Hugh Edwards
- Department of Agriculture, Environment and Rural Affairs Belfast UK
| | - Andy Foggo
- School of Biological and Marine Sciences University of Plymouth Plymouth UK
| | - Lisa Grant
- Zoology, School of Natural Sciences National University of Ireland Galway Galway Ireland
| | | | - Paul E. Gribben
- Centre for Marine Science and Innovation, School of Biological, Earth and Environmental Sciences University of New South Wales Sydney NSW Australia
| | - Fernando P. Lima
- CIBIO/InBIO Centro de Investigação em Biodiversidade e Recursos Genéticos Universidade de Porto Porto Portugal
| | | | - Laure M. L. J. Noël
- Sorbonne Université Station Biologique de Roscoff, CNRS, UMR AD2M Adaptation et Diversité en Milieu Marin Roscoff France
| | - Rui Seabra
- CIBIO/InBIO Centro de Investigação em Biodiversidade e Recursos Genéticos Universidade de Porto Porto Portugal
| | | | - Stephen J. Hawkins
- School of Biological and Marine Sciences University of Plymouth Plymouth UK
- Marine Biological Association of the UK Plymouth UK
- School of Ocean and Earth Science, National Oceanography Centre Southampton University of Southampton Southampton UK
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Muir AP, Dubois SF, Ross RE, Firth LB, Knights AM, Lima FP, Seabra R, Corre E, Le Corguillé G, Nunes FLD. Seascape genomics reveals population isolation in the reef-building honeycomb worm, Sabellaria alveolata (L.). BMC Evol Biol 2020; 20:100. [PMID: 32778052 PMCID: PMC7418442 DOI: 10.1186/s12862-020-01658-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 07/17/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Under the threat of climate change populations can disperse, acclimatise or evolve in order to avoid fitness loss. In light of this, it is important to understand neutral gene flow patterns as a measure of dispersal potential, but also adaptive genetic variation as a measure of evolutionary potential. In order to assess genetic variation and how this relates to environment in the honeycomb worm (Sabellaria alveolata (L.)), a reef-building polychaete that supports high biodiversity, we carried out RAD sequencing using individuals from along its complete latitudinal range. Patterns of neutral population genetic structure were compared to larval dispersal as predicted by ocean circulation modelling, and outlier analyses and genotype-environment association tests were used to attempt to identify loci under selection in relation to local temperature data. RESULTS We genotyped 482 filtered SNPs, from 68 individuals across nine sites, 27 of which were identified as outliers using BAYESCAN and ARLEQUIN. All outlier loci were potentially under balancing selection, despite previous evidence of local adaptation in the system. Limited gene flow was observed among reef-sites (FST = 0.28 ± 0.10), in line with the low dispersal potential identified by the larval dispersal models. The North Atlantic reef emerged as a distinct population and this was linked to high local larval retention and the effect of the North Atlantic Current on dispersal. CONCLUSIONS As an isolated population, with limited potential for natural genetic or demographic augmentation from other reefs, the North Atlantic site warrants conservation attention in order to preserve not only this species, but above all the crucial functional ecological roles that are associated with their bioconstructions. Our study highlights the utility of using seascape genomics to identify populations of conservation concern.
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Affiliation(s)
- Anna P Muir
- Conservation Biology Research Group, Department of Biological Sciences, University of Chester, Parkgate Road, Chester, CH1 4BJ, UK.
- Laboratoire des Sciences de l'Environnement Marin, LEMAR UMR 6539 CNRS/UBO/IRD/Ifremer, Université de Brest (UBO), Université Européenne de Bretagne (UEB), Institut Universitaire Européen de la Mer (IUEM), 29280, Plouzané, France.
| | - Stanislas F Dubois
- Ifremer, DYNECO, Laboratory of Coastal Benthic Ecology, F-29280, Plouzané, France
| | - Rebecca E Ross
- Marine Biology and Ecology Research Centre, School of Biological and Marine Sciences, University of Plymouth, Plymouth, PL4 8AA, UK
- Institute of Marine Research, 1870 Nordnes, 5817, Bergen, Norway
| | - Louise B Firth
- School of Biological and Marine Sciences, University of Plymouth, Plymouth, PL4 8AA, UK
| | - Antony M Knights
- Marine Biology and Ecology Research Centre, School of Biological and Marine Sciences, University of Plymouth, Plymouth, PL4 8AA, UK
| | - Fernando P Lima
- CIBIO/InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Vairão, Portugal
| | - Rui Seabra
- CIBIO/InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Vairão, Portugal
| | - Erwan Corre
- CNRS, Sorbonne Université, FR2424, ABiMS, Station Biologique de Roscoff, 29680, Roscoff, France
| | - Gildas Le Corguillé
- CNRS, Sorbonne Université, FR2424, ABiMS, Station Biologique de Roscoff, 29680, Roscoff, France
| | - Flavia L D Nunes
- Laboratoire des Sciences de l'Environnement Marin, LEMAR UMR 6539 CNRS/UBO/IRD/Ifremer, Université de Brest (UBO), Université Européenne de Bretagne (UEB), Institut Universitaire Européen de la Mer (IUEM), 29280, Plouzané, France
- Ifremer, DYNECO, Laboratory of Coastal Benthic Ecology, F-29280, Plouzané, France
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Teschima MM, Garrido A, Paris A, Nunes FLD, Zilberberg C. Correction: Biogeography of the endosymbiotic dinoflagellates (Symbiodiniaceae) community associated with the brooding coral Favia gravida in the Atlantic Ocean. PLoS One 2019; 14:e0215167. [PMID: 30947299 PMCID: PMC6448834 DOI: 10.1371/journal.pone.0215167] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Teschima MM, Garrido A, Paris A, Nunes FLD, Zilberberg C. Biogeography of the endosymbiotic dinoflagellates (Symbiodiniaceae) community associated with the brooding coral Favia gravida in the Atlantic Ocean. PLoS One 2019; 14:e0213519. [PMID: 30849101 PMCID: PMC6407780 DOI: 10.1371/journal.pone.0213519] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 02/24/2019] [Indexed: 01/07/2023] Open
Abstract
Zooxanthellate corals live in symbiosis with phototrophic dinoflagellates of the family Symbiodiniaceae, enabling the host coral to dwell in shallow, nutrient-poor marine waters. The South Atlantic Ocean is characterized by low coral diversity with high levels of endemism. However, little is known about coral-dinoflagellate associations in the region. This study examined the diversity of Symbiodiniaceae associated with the scleractinian coral Favia gravida across its distributional range using the ITS-2 marker. This brooding coral endemic to the South Atlantic can be found across a wide range of latitudes and longitudes, including the Mid-Atlantic islands. Even though it occurs primarily in shallower environments, F. gravida is among the few coral species that live in habitats with extreme environmental conditions (high irradiance, temperature, and turbidity) such as very shallow tide pools. In the present study, we show that F. gravida exhibits some degree of flexibility in its symbiotic association with zooxanthellae across its range. F. gravida associates predominantly with Cladocopium C3 (ITS2 type Symbiodinium C3) but also with Symbiodinium A3, Symbiodinium linucheae (ITS2 type A4), Cladocopium C1, Cladocopium C130, and Fugacium F3. Symbiont diversity varied across biogeographic regions (Symbiodinium A3 and S. linucheae were found in the Tropical Eastern Atlantic, Cladocopium C1 in the Mid-Atlantic, and other subtypes in the Southwestern Atlantic) and was affected by local environmental conditions. In addition, Symbiodiniaceae diversity was highest in a southwestern Atlantic oceanic island (Rocas Atoll). Understanding the relationship between corals and their algal symbionts is critical in determining the factors that control the ecological niches of zooxanthellate corals and their symbionts, and identifying host-symbiont pairs that may be more resistant to environmental changes.
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Affiliation(s)
- Mariana M. Teschima
- Programa de Pós-Graduação em Biodiversidade e Biologia Evolutiva, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- * E-mail:
| | - Amana Garrido
- Programa de Pós-Graduação em Biodiversidade e Biologia Evolutiva, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Alexandra Paris
- Departamento de Biologia Marinha, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Flavia L. D. Nunes
- Laboratoire d’Ecologie Benthique Côtière (LEBCO), DYNECO, Ifremer Centre Bretagne, Plouzané, France
| | - Carla Zilberberg
- Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- Instituto Coral Vivo, Parque Yayá, Santa Cruz Cabrália, Bahia, Brazil
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Dubief B, Nunes FLD, Basuyaux O, Paillard C. Immune priming and portal of entry effectors improve response to vibrio infection in a resistant population of the European abalone. Fish Shellfish Immunol 2017; 60:255-264. [PMID: 27836724 DOI: 10.1016/j.fsi.2016.11.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Revised: 10/20/2016] [Accepted: 11/06/2016] [Indexed: 02/08/2023]
Abstract
Since 1997, populations of the European abalone Haliotis tuberculata suffer mass mortalities attributed to the bacterium Vibrio harveyi. These mortalities occur at the spawning season, when the abalone immune system is depressed, and when temperatures exceed 17 °C, leading to favorable conditions for V. harveyi proliferation. In order to identify mechanisms of disease resistance, experimental successive infections were carried out on two geographically distinct Brittany populations: one that has suffered recurrent mortalities (Saint-Malo) and one that has not been impacted by the disease (Molène). Furthermore, abalone surviving these two successive bacterial challenges and uninfected abalone were used for several post-infection analyses. The Saint-Malo population was found to be resistant to V. harveyi infection, with a survival rate of 95% compared to 51% for Molène. While in vitro quantification of phagocytosis by flow cytometry showed strong inhibition following the first infection, no inhibition of phagocytosis was observed following the second infection for Saint-Malo, suggesting an immune priming effect. Moreover, assays of phagocytosis of GFP-labelled V. harveyi performed two months post-infection show an inhibition of phagocytosis by extracellular products of V. harveyi for uninfected abalone, while no effect was observed for previously infected abalone from Saint-Malo, suggesting that the effects of immune priming may last upwards of two months. Detection of V. harveyi by qPCR showed that a significantly greater number of abalone from the susceptible population were positive for V. harveyi in the gills, indicating that portal of entry effectors may play a role in resistance to the disease. Collectively, these results suggest a potential synergistic effect of gills and hemolymph in the resistance of H. tuberculata against V. harveyi with an important involvement of the gills, the portal of entry of the bacteria.
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Affiliation(s)
- Bruno Dubief
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR6539, CNRS/UBO/IRD/Ifremer, Institut Universitaire Européen de la Mer, University of Brest (UBO), Université Européenne de Bretagne (UEB), Place Nicolas Copernic, 29280, Plouzané, France.
| | - Flavia L D Nunes
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR6539, CNRS/UBO/IRD/Ifremer, Institut Universitaire Européen de la Mer, University of Brest (UBO), Université Européenne de Bretagne (UEB), Place Nicolas Copernic, 29280, Plouzané, France; Ifremer Centre de Bretagne, DYNECO, Laboratoire d'Ecologie Benthique Côtière (LEBCO), 29280, Plouzané, France
| | - Olivier Basuyaux
- Synergie Mer et Littoral, Centre Expérimental ZAC de Blainville, 50560, Blainville-sur-mer, France
| | - Christine Paillard
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR6539, CNRS/UBO/IRD/Ifremer, Institut Universitaire Européen de la Mer, University of Brest (UBO), Université Européenne de Bretagne (UEB), Place Nicolas Copernic, 29280, Plouzané, France.
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Harney E, Dubief B, Boudry P, Basuyaux O, Schilhabel MB, Huchette S, Paillard C, Nunes FLD. De novo assembly and annotation of the European abalone Haliotis tuberculata transcriptome. Mar Genomics 2016; 28:11-16. [PMID: 26971316 DOI: 10.1016/j.margen.2016.03.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 03/03/2016] [Indexed: 02/08/2023]
Abstract
The European abalone Haliotis tuberculata is a delicacy and consequently a commercially valuable gastropod species. Aquaculture production and wild populations are subjected to multiple climate-associated stressors and anthropogenic pressures, including rising sea-surface temperatures, ocean acidification and an emerging pathogenic Vibrio infection. Transcript expression data provides a valuable resource for understanding abalone responses to variation in the biotic and abiotic environment. To generate an extensive transcriptome, we performed next-generation sequencing of RNA on larvae exposed to temperature and pH variation and on haemolymph of adults from two wild populations after experimental infection with Vibrio harveyi. We obtained more than 1.5 billion raw paired-end reads, which were assembled into 328,519 contigs. Filtration and clustering produced a transcriptome of 41,099 transcripts, of which 10,626 (25.85%) were annotated with Blast hits, and 7380 of these were annotated with Gene Ontology (GO) terms in Blast2Go. A differential expression analysis comparing all samples from the two life stages identified 5690 and 10,759 transcripts with significantly higher expression in larvae and adult haemolymph respectively. This is the greatest sequencing effort yet in the Haliotis genus, and provides the first high-throughput transcriptomic resource for H. tuberculata.
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Affiliation(s)
- Ewan Harney
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR6539 CNRS/UBO/IRD/Ifremer, Institut Universitaire Européen de la Mer, University of Brest (UBO), Université Européenne de Bretagne (UEB), Place Nicolas Copernic, 29280, Plouzané, France.
| | - Bruno Dubief
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR6539 CNRS/UBO/IRD/Ifremer, Institut Universitaire Européen de la Mer, University of Brest (UBO), Université Européenne de Bretagne (UEB), Place Nicolas Copernic, 29280, Plouzané, France
| | - Pierre Boudry
- Ifremer, Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS/UBO/IRD/Ifremer, Centre Bretagne Z.I. Pointe du Diable, 29280 Plouzané, France
| | - Olivier Basuyaux
- SMEL (Synergie Mer Et Littoral), Centre Expérimental, 50560 Blainville-sur-Mer, France
| | - Markus B Schilhabel
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, 24105 Kiel, Germany
| | | | - Christine Paillard
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR6539 CNRS/UBO/IRD/Ifremer, Institut Universitaire Européen de la Mer, University of Brest (UBO), Université Européenne de Bretagne (UEB), Place Nicolas Copernic, 29280, Plouzané, France
| | - Flavia L D Nunes
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR6539 CNRS/UBO/IRD/Ifremer, Institut Universitaire Européen de la Mer, University of Brest (UBO), Université Européenne de Bretagne (UEB), Place Nicolas Copernic, 29280, Plouzané, France
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Harney E, Artigaud S, Le Souchu P, Miner P, Corporeau C, Essid H, Pichereau V, Nunes FLD. Non-additive effects of ocean acidification in combination with warming on the larval proteome of the Pacific oyster, Crassostrea gigas. J Proteomics 2015; 135:151-161. [PMID: 26657130 DOI: 10.1016/j.jprot.2015.12.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 11/26/2015] [Accepted: 12/01/2015] [Indexed: 11/17/2022]
Abstract
UNLABELLED Increasing atmospheric carbon dioxide results in ocean acidification and warming, significantly impacting marine invertebrate larvae development. We investigated how ocean acidification in combination with warming affected D-veliger larvae of the Pacific oyster Crassostrea gigas. Larvae were reared for 40h under either control (pH8.1, 20 °C), acidified (pH7.9, 20 °C), warm (pH8.1, 22 °C) or warm acidified (pH7.9, 22 °C) conditions. Larvae in acidified conditions were significantly smaller than in the control, but warm acidified conditions mitigated negative effects on size, and increased calcification. A proteomic approach employing two-dimensional electrophoresis (2-DE) was used to quantify proteins and relate their abundance to phenotypic traits. In total 12 differentially abundant spots were identified by nano-liquid chromatography-tandem mass spectrometry. These proteins had roles in metabolism, intra- and extra-cellular matrix formations, stress response, and as molecular chaperones. Seven spots responded to reduced pH, four to increased temperature, and six to acidification and warming. Reduced abundance of proteins such as ATP synthase and GAPDH, and increased abundance of superoxide dismutase, occurred when both pH and temperature changes were imposed, suggesting altered metabolism and enhanced oxidative stress. These results identify key proteins that may be involved in the acclimation of C. gigas larvae to ocean acidification and warming. SIGNIFICANCE Increasing atmospheric CO2 raises sea surface temperatures and results in ocean acidification, two climatic variables known to impact marine organisms. Larvae of calcifying species may be particularly at risk to such changing environmental conditions. The Pacific oyster Crassostrea gigas is ecologically and commercially important, and understanding its ability to acclimate to climate change will help to predict how aquaculture of this species is likely to be impacted. Modest, yet realistic changes in pH and/or temperature may be more informative of how populations will respond to contemporary climate change. We showed that concurrent acidification and warming mitigates the negative effects of pH alone on size of larvae, but proteomic analysis reveals altered patterns of metabolism and an increase in oxidative stress suggesting non-additive effects of the interaction between pH and temperature on protein abundance. Thus, even small changes in climate may influence development, with potential consequences later in life.
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Affiliation(s)
- Ewan Harney
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS/UBO/IRD/Ifremer, Institut Universitaire Européen de la Mer, University of Brest (UBO), Université Européenne de Bretagne (UEB), Place Nicolas Copernic, 29280 Plouzané, France.
| | - Sébastien Artigaud
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS/UBO/IRD/Ifremer, Institut Universitaire Européen de la Mer, University of Brest (UBO), Université Européenne de Bretagne (UEB), Place Nicolas Copernic, 29280 Plouzané, France
| | - Pierrick Le Souchu
- Ifremer, Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS/UBO/IRD/Ifremer, Centre Bretagne Z.I. Pointe du Diable, 29280 Plouzané, France
| | - Philippe Miner
- Ifremer, Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS/UBO/IRD/Ifremer, Centre Bretagne Z.I. Pointe du Diable, 29280 Plouzané, France
| | - Charlotte Corporeau
- Ifremer, Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS/UBO/IRD/Ifremer, Centre Bretagne Z.I. Pointe du Diable, 29280 Plouzané, France
| | - Hafida Essid
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS/UBO/IRD/Ifremer, Institut Universitaire Européen de la Mer, University of Brest (UBO), Université Européenne de Bretagne (UEB), Place Nicolas Copernic, 29280 Plouzané, France
| | - Vianney Pichereau
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS/UBO/IRD/Ifremer, Institut Universitaire Européen de la Mer, University of Brest (UBO), Université Européenne de Bretagne (UEB), Place Nicolas Copernic, 29280 Plouzané, France
| | - Flavia L D Nunes
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS/UBO/IRD/Ifremer, Institut Universitaire Européen de la Mer, University of Brest (UBO), Université Européenne de Bretagne (UEB), Place Nicolas Copernic, 29280 Plouzané, France
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Nunes FLD, Aquilina L, de Ridder J, Francez AJ, Quaiser A, Caudal JP, Vandenkoornhuyse P, Dufresne A. Time-scales of hydrological forcing on the geochemistry and bacterial community structure of temperate peat soils. Sci Rep 2015; 5:14612. [PMID: 26440376 PMCID: PMC4594127 DOI: 10.1038/srep14612] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Accepted: 08/28/2015] [Indexed: 11/09/2022] Open
Abstract
Peatlands are an important global carbon reservoir. The continued accumulation of carbon in peatlands depends on the persistence of anoxic conditions, in part induced by water saturation, which prevents oxidation of organic matter, and slows down decomposition. Here we investigate how and over what time scales the hydrological regime impacts the geochemistry and the bacterial community structure of temperate peat soils. Peat cores from two sites having contrasting groundwater budgets were subjected to four controlled drought-rewetting cycles. Pore water geochemistry and metagenomic profiling of bacterial communities showed that frequent water table drawdown induced lower concentrations of dissolved carbon, higher concentrations of sulfate and iron and reduced bacterial richness and diversity in the peat soil and water. Short-term drought cycles (3-9 day frequency) resulted in different communities from continuously saturated environments. Furthermore, the site that has more frequently experienced water table drawdown during the last two decades presented the most striking shifts in bacterial community structure, altering biogeochemical functioning of peat soils. Our results suggest that the increase in frequency and duration of drought conditions under changing climatic conditions or water resource use can induce profound changes in bacterial communities, with potentially severe consequences for carbon storage in temperate peatlands.
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Affiliation(s)
- Flavia L D Nunes
- Laboratoire des Sciences de l'Environnement Marin, LEMAR UMR 6539 CNRS/UBO/IRD/Ifremer, Université de Brest (UBO), Université Européenne de Bretagne (UEB), Institut Universitaire Européen de la Mer (IUEM), 29280 Plouzané, France.,Université de Rennes 1, CNRS, UMR6118 Géosciences, Rennes, France.,Université de Rennes 1, CNRS, UMR6553 ECOBIO, Rennes, France
| | - Luc Aquilina
- Université de Rennes 1, CNRS, UMR6118 Géosciences, Rennes, France
| | - Jo de Ridder
- Université de Rennes 1, CNRS, UMR6118 Géosciences, Rennes, France
| | | | - Achim Quaiser
- Université de Rennes 1, CNRS, UMR6553 ECOBIO, Rennes, France
| | | | | | - Alexis Dufresne
- Université de Rennes 1, CNRS, UMR6553 ECOBIO, Rennes, France
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Nunes FLD, Norris RD, Knowlton N. Long distance dispersal and connectivity in amphi-Atlantic corals at regional and basin scales. PLoS One 2011; 6:e22298. [PMID: 21799816 PMCID: PMC3142122 DOI: 10.1371/journal.pone.0022298] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Accepted: 06/23/2011] [Indexed: 11/24/2022] Open
Abstract
Among Atlantic scleractinian corals, species diversity is highest in the Caribbean, but low diversity and high endemism are observed in various peripheral populations in central and eastern Atlantic islands and along the coasts of Brazil and West Africa. The degree of connectivity between these distantly separated populations is of interest because it provides insight into processes at both evolutionary and ecological time scales, such as speciation, recruitment dynamics and the persistence of coral populations. To assess connectivity in broadly distributed coral species of the Atlantic, DNA sequence data from two nuclear markers were obtained for six coral species spanning their distributional ranges. At basin-wide scales, significant differentiation was generally observed among populations in the Caribbean, Brazil and West Africa. Concordance of patterns in connectivity among co-distributed taxa indicates that extrinsic barriers, such as the Amazon freshwater plume or long stretches of open ocean, restrict dispersal of coral larvae from region to region. Within regions, dispersal ability appears to be influenced by aspects of reproduction and life history. Two broadcasting species, Siderastrea siderea and Montastraea cavernosa, were able to maintain gene flow among populations separated by as much as 1,200 km along the coast of Brazil. In contrast, brooding species, such as Favia gravida and Siderastrea radians, had more restricted gene flow along the Brazilian coast.
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Affiliation(s)
- Flavia L D Nunes
- Laboratory of Artificial and Natural Evolution, University of Geneva, Geneva, Switzerland.
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Budd AF, Nunes FLD, Weil E, Pandolfi JM. Polymorphism in a common Atlantic reef coral (Montastraea cavernosa) and its long-term evolutionary implications. Evol Ecol 2011. [DOI: 10.1007/s10682-010-9460-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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