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Addamo AM, Modrell MS, Taviani M, Machordom A. Unravelling the relationships among Madrepora Linnaeus, 1758, Oculina Lamark, 1816 and Cladocora Ehrenberg, 1834 (Cnidaria: Anthozoa: Scleractinia). INVERTEBR SYST 2024; 38:IS23027. [PMID: 38744497 DOI: 10.1071/is23027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 03/18/2024] [Indexed: 05/16/2024]
Abstract
Despite the widespread use of integrative taxonomic approaches, many scleractinian coral genera and species remain grouped in polyphyletic families, classified as incertae sedis or simply understudied. Oculinidae Gray, 1847 represents a family for which many taxonomic questions remain unresolved, particularly those related to some of the current genera, such as Oculina Lamark, 1816 or recently removed genera, including Cladocora Ehrenberg, 1834 and Madrepora Linnaeus, 1758. Cladocora is currently assigned to the family Cladocoridae Milne Edwards & Haime, 1857 and a new family, Bathyporidae Kitahara, Capel, Zilberberg & Cairns, 2024, was recently raised to accommodate Madrepora . However, the name Bathyporidae is not valid because this was not formed on the basis of a type genus name. To resolve taxonomic questions related to these three genera, the evolutionary relationships are explored through phylogenetic analyses of 18 molecular markers. The results of these analyses support a close relationship between the species Oculina patagonica and Cladocora caespitosa , indicating that these may belong to the same family (and possibly genus), and highlighting the need for detailed revisions of Oculina and Cladocora . By contrast, a distant relationship is found between these two species and Madrepora oculata , with the overall evidence supporting the placement of Madrepora in the resurrected family Madreporidae Ehrenberg, 1834. This study advances our knowledge of coral systematics and highlights the need for a comprehensive review of the genera Oculina , Cladocora and Madrepora .
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Affiliation(s)
- Anna M Addamo
- Departamento de Biodiversidad y Biología Evolutiva, Museo Nacional de Ciencias Naturales (MNCN-CSIC), E-28006 Madrid, Spain; and European Commission, Joint Research Centre (JRC), I-21027 Ispra, Italy; and Climate Change Research Centre (CCRC), University of Insubria, I-21100 Varese, Italy; and Present address: Faculty of Biosciences and Aquaculture, Nord University, NO-8049 Bodø, Norway
| | - Melinda S Modrell
- Departamento de Biodiversidad y Biología Evolutiva, Museo Nacional de Ciencias Naturales (MNCN-CSIC), E-28006 Madrid, Spain
| | - Marco Taviani
- Istituto di Scienze Marine, Consiglio Nazionale delle Ricerche (ISMAR-CNR), I-40129 Bologna, Italy; and Stazione Zoologica Anton Dohrn, Villa Comunale, I-80121 Napoli, Italy
| | - Annie Machordom
- Departamento de Biodiversidad y Biología Evolutiva, Museo Nacional de Ciencias Naturales (MNCN-CSIC), E-28006 Madrid, Spain
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2
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Hu LS, Dong YW. Multiple genetic sources facilitate the northward range expansion of an intertidal oyster along China's coast. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2024; 34:e2764. [PMID: 36259430 DOI: 10.1002/eap.2764] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/27/2022] [Accepted: 09/01/2022] [Indexed: 06/16/2023]
Abstract
Coastal artificial structures on the former mudflats provide available habitats for the rocky intertidal species which can establish new populations in these emerging habitats over their former distribution range limits. As a former southern species, the oyster Crassostrea sikamea has become a pioneer and rapidly invaded the artificial shorelines in northern China. We used a seascape genomics approach to investigate the population structure and genetic sources of C. sikamea on the coastal artificial structures, which is crucial for understanding the genetic mechanisms driving species distribution range expansion and invasion pathway of intertidal species. Five C. sikamea populations, including two artificial substrate populations (WGZ and ZAP), one oyster reef population (LS), and two natural rocky shore populations (ZS and XM), were measured using single nucleotide polymorphism (SNPs) obtained from double digest restriction-site associated DNA sequencing (ddRAD-Seq). Redundancy analyses (RDA) were implemented for investigating the relationship between local temperature variables and the temperature adaptability of C. sikamea. Genetic diversity, direction and strength of gene flow, and population structure all revealed that the LS and ZS populations were the genetic sources for the oyster populations on the emerging northern coastal artificial structures. Results of RDA showed that there were different adaptive potentials for northern and southern populations to local temperature variables and the oyster reef population which frequently suffers from heat stress owned high heat adaptability. The ZS population as a genetic source nearby the Yangtze River estuary provided mass larvae for the northern populations, and the other genetic source, the heat-tolerant LS population, in the oyster reef played an important role in the post-settlement success by providing preadapted genotypes. These results highlight the importance of multiple sources with divergent adaptative capabilities for biological invasion, and also emphasize the importance of the oyster reef in coastal biodiversity and conservation.
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Affiliation(s)
- Li-Sha Hu
- The Key Laboratory of Mariculture, Ministry of Education, Fisheries College, Ocean University of China, Qingdao, People's Republic of China
- Function Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology, Qingdao, People's Republic of China
| | - Yun-Wei Dong
- The Key Laboratory of Mariculture, Ministry of Education, Fisheries College, Ocean University of China, Qingdao, People's Republic of China
- Function Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology, Qingdao, People's Republic of China
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3
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Ribeiro FDV, Pessarodona A, Tucket C, Mulders Y, Pereira RC, Wernberg T. Shield wall: Kelps are the last stand against corals in tropicalised reefs. Funct Ecol 2022. [DOI: 10.1111/1365-2435.14141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Felipe de Vargas Ribeiro
- Programa de Pós‐Graduação em Dinâmica dos Oceanos e da Terra, Universidade Federal Fluminense Rio de Janeiro Brazil
- Departamento de Biologia Marinha Instituto de Biologia, Universidade Federal Fluminense Rio de Janeiro Brazil
- UWA Oceans Institute & School of Biological Sciences, University of Western Australia, Crawley Western Australia Australia
| | - Albert Pessarodona
- UWA Oceans Institute & School of Biological Sciences, University of Western Australia, Crawley Western Australia Australia
| | - Chenae Tucket
- UWA Oceans Institute & School of Biological Sciences, University of Western Australia, Crawley Western Australia Australia
| | - Yannick Mulders
- UWA Oceans Institute & School of Biological Sciences, University of Western Australia, Crawley Western Australia Australia
| | - Renato Crespo Pereira
- Programa de Pós‐Graduação em Dinâmica dos Oceanos e da Terra, Universidade Federal Fluminense Rio de Janeiro Brazil
- Departamento de Biologia Marinha Instituto de Biologia, Universidade Federal Fluminense Rio de Janeiro Brazil
- Instituto de Pesquisas Jardim Botânico Rio de Janeiro Brazil
| | - Thomas Wernberg
- UWA Oceans Institute & School of Biological Sciences, University of Western Australia, Crawley Western Australia Australia
- Department of Science and Environment (DSE) Roskilde University Roskilde Denmark
- Institute of Marine Research, Floedevigen Research Station Norway
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4
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Martinez S, Bellworthy J, Ferrier-Pagès C, Mass T. Selection of mesophotic habitats by Oculina patagonica in the Eastern Mediterranean Sea following global warming. Sci Rep 2021; 11:18134. [PMID: 34518595 PMCID: PMC8438053 DOI: 10.1038/s41598-021-97447-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 08/24/2021] [Indexed: 02/08/2023] Open
Abstract
Globally, species are migrating in an attempt to track optimal isotherms as climate change increasingly warms existing habitats. Stony corals are severely threatened by anthropogenic warming, which has resulted in repeated mass bleaching and mortality events. Since corals are sessile as adults and with a relatively old age of sexual maturity, they are slow to latitudinally migrate, but corals may also migrate vertically to deeper, cooler reefs. Herein we describe vertical migration of the Mediterranean coral Oculina patagonica from less than 10 m depth to > 30 m. We suggest that this range shift is a response to rapidly warming sea surface temperatures on the Israeli Mediterranean coastline. In contrast to the vast latitudinal distance required to track temperature change, this species has migrated deeper where summer water temperatures are up to 2 °C cooler. Comparisons of physiology, morphology, trophic position, symbiont type, and photochemistry between deep and shallow conspecifics revealed only a few depth-specific differences. At this study site, shallow colonies typically inhabit low light environments (caves, crevices) and have a facultative relationship with photosymbionts. We suggest that this existing phenotype aided colonization of the mesophotic zone. This observation highlights the potential for other marine species to vertically migrate.
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Affiliation(s)
- Stephane Martinez
- grid.18098.380000 0004 1937 0562Department of Marine Biology, Leon H. Charney School of Marine Sciences, University of Haifa, Haifa, Israel ,grid.18098.380000 0004 1937 0562Morris Kahn Marine Research Station, The Leon H. Charney School of Marine Sciences, University of Haifa, Sdot Yam, Israel ,grid.452353.60000 0004 0550 8241Coral Ecophysiology Team, Centre Scientifique de Monaco, 8 Quai Antoine 1er, Monaco City, 98000 Monaco
| | - Jessica Bellworthy
- grid.18098.380000 0004 1937 0562Department of Marine Biology, Leon H. Charney School of Marine Sciences, University of Haifa, Haifa, Israel ,grid.440849.50000 0004 0496 208XThe Interuniversity Institute of Marine Sciences, Eilat, Israel
| | - Christine Ferrier-Pagès
- grid.452353.60000 0004 0550 8241Coral Ecophysiology Team, Centre Scientifique de Monaco, 8 Quai Antoine 1er, Monaco City, 98000 Monaco
| | - Tali Mass
- grid.18098.380000 0004 1937 0562Department of Marine Biology, Leon H. Charney School of Marine Sciences, University of Haifa, Haifa, Israel ,grid.18098.380000 0004 1937 0562Morris Kahn Marine Research Station, The Leon H. Charney School of Marine Sciences, University of Haifa, Sdot Yam, Israel
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5
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Chen B, Yu K, Liao Z, Yu X, Qin Z, Liang J, Wang G, Wu Q, Jiang L. Microbiome community and complexity indicate environmental gradient acclimatisation and potential microbial interaction of endemic coral holobionts in the South China Sea. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 765:142690. [PMID: 33071127 DOI: 10.1016/j.scitotenv.2020.142690] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/31/2020] [Accepted: 09/26/2020] [Indexed: 06/11/2023]
Abstract
Regional acclimatisation and microbial interactions significantly influence the resilience of reef-building corals facing anthropogenic climate change, allowing them to adapt to environmental stresses. However, the connections between community structure and microbial interactions of the endemic coral microbiome and holobiont acclimatisation remain unclear. Herein, we used generation sequencing of internal transcribed spacer (ITS2) and 16S rRNA genes to investigate the microbiome composition (Symbiodiniaceae and bacteria) and associated potential interactions of endemic dominant coral holobionts (Pocillopora verrucosa and Turbinaria peltata) in the South China Sea (SCS). We found that shifts in Symbiodiniaceae and bacterial communities of P. verrucosa were associated with latitudinal gradient and climate zone changes, respectively. The C1 sub-clade consistently dominated the Symbiodiniaceae community in T. peltata; yet, the bacterial community structure was spatially heterogeneous. The relative abundance of the core microbiome among P. verrucosa holobionts was reduced in the biogeographical transition zone, while bacterial taxa associated with anthropogenic activity (Escherichia coli and Sphingomonas) were identified in the core microbiomes. Symbiodiniaceae and bacteria potentially interact in microbial co-occurrence networks. Further, increased bacterial, and Symbiodiniaceae α-diversity was associated with increased and decreased network complexity, respectively. Hence, Symbiodiniaceae and bacteria demonstrated different flexibility in latitudinal or climatic environmental regimes, which correlated with holobiont acclimatisation. Core microbiome analysis has indicated that the function of core bacterial microbiota might have changed in distinct environmental regimes, implying potential human activity in the coral habitats. Increased bacterial α diversity may lead to a decline in the stability of coral-microorganism symbioses, whereas rare Symbiodiniaceae may help to retain symbioses. Cladocopium, γ-proteobacteria, while α-proteobacteria may have been the primary drivers in the Symbiodiniaceae-bacterial interactions (SBIs). Our study highlights the association between microbiome shift in distinct environmental regimes and holobiont acclimatisation, while providing insights into the impact of SBIs on holobiont health and acclimatisation during climate change.
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Affiliation(s)
- Biao Chen
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning, China; Coral Reef Research Center of China, Guangxi University, Nanning, China; School of Marine Sciences, Guangxi University, Nanning, China
| | - Kefu Yu
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning, China; Coral Reef Research Center of China, Guangxi University, Nanning, China; School of Marine Sciences, Guangxi University, Nanning, China.
| | - Zhiheng Liao
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning, China; Coral Reef Research Center of China, Guangxi University, Nanning, China; School of Marine Sciences, Guangxi University, Nanning, China
| | - Xiaopeng Yu
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning, China; Coral Reef Research Center of China, Guangxi University, Nanning, China; School of Marine Sciences, Guangxi University, Nanning, China
| | - Zhenjun Qin
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning, China; Coral Reef Research Center of China, Guangxi University, Nanning, China; School of Marine Sciences, Guangxi University, Nanning, China
| | - Jiayuan Liang
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning, China; Coral Reef Research Center of China, Guangxi University, Nanning, China; School of Marine Sciences, Guangxi University, Nanning, China
| | - Guanghua Wang
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning, China; Coral Reef Research Center of China, Guangxi University, Nanning, China; School of Marine Sciences, Guangxi University, Nanning, China
| | - Qian Wu
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning, China; Coral Reef Research Center of China, Guangxi University, Nanning, China; School of Marine Sciences, Guangxi University, Nanning, China
| | - Leilei Jiang
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning, China; Coral Reef Research Center of China, Guangxi University, Nanning, China; School of Marine Sciences, Guangxi University, Nanning, China
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6
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Lenoir J, Bertrand R, Comte L, Bourgeaud L, Hattab T, Murienne J, Grenouillet G. Species better track climate warming in the oceans than on land. Nat Ecol Evol 2020; 4:1044-1059. [PMID: 32451428 DOI: 10.1101/765776] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 04/03/2020] [Indexed: 05/23/2023]
Abstract
There is mounting evidence of species redistribution as climate warms. Yet, our knowledge of the coupling between species range shifts and isotherm shifts remains limited. Here, we introduce BioShifts-a global geo-database of 30,534 range shifts. Despite a spatial imbalance towards the most developed regions of the Northern Hemisphere and a taxonomic bias towards the most charismatic animals and plants of the planet, data show that marine species are better at tracking isotherm shifts, and move towards the pole six times faster than terrestrial species. More specifically, we find that marine species closely track shifting isotherms in warm and relatively undisturbed waters (for example, the Central Pacific Basin) or in cold waters subject to high human pressures (for example, the North Sea). On land, human activities impede the capacity of terrestrial species to track isotherm shifts in latitude, with some species shifting in the opposite direction to isotherms. Along elevational gradients, species follow the direction of isotherm shifts but at a pace that is much slower than expected, especially in areas with warm climates. Our results suggest that terrestrial species are lagging behind shifting isotherms more than marine species, which is probably related to the interplay between the wider thermal safety margin of terrestrial versus marine species and the more constrained physical environment for dispersal in terrestrial versus marine habitats.
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Affiliation(s)
- Jonathan Lenoir
- Ecologie et Dynamique des Systèmes Anthropisés (EDYSAN), UMR7058, CNRS and Université de Picardie Jules Verne, Amiens, France.
| | - Romain Bertrand
- Centre for Biodiversity Theory and Modelling, Theoretical and Experimental Ecology Station, UMR5321, CNRS and Université Toulouse III - Paul Sabatier, Moulis, France
- Laboratoire Evolution et Diversité Biologique, UMR5174, Université Toulouse III - Paul Sabatier, CNRS, IRD and UPS, Toulouse, France
| | - Lise Comte
- School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA, USA
- Department of Ecology and Evolutionary Biology, The University of Tennessee, Knoxville, TN, USA
| | - Luana Bourgeaud
- Laboratoire Evolution et Diversité Biologique, UMR5174, Université Toulouse III - Paul Sabatier, CNRS, IRD and UPS, Toulouse, France
| | - Tarek Hattab
- MARBEC, Univ Montpellier, CNRS, IFREMER and IRD, Sète, France
| | - Jérôme Murienne
- Laboratoire Evolution et Diversité Biologique, UMR5174, Université Toulouse III - Paul Sabatier, CNRS, IRD and UPS, Toulouse, France
| | - Gaël Grenouillet
- Laboratoire Evolution et Diversité Biologique, UMR5174, Université Toulouse III - Paul Sabatier, CNRS, IRD and UPS, Toulouse, France
- Institut Universitaire de France, Paris, France
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7
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Cattano C, Agostini S, Harvey BP, Wada S, Quattrocchi F, Turco G, Inaba K, Hall-Spencer JM, Milazzo M. Changes in fish communities due to benthic habitat shifts under ocean acidification conditions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 725:138501. [PMID: 32298893 DOI: 10.1016/j.scitotenv.2020.138501] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 03/27/2020] [Accepted: 04/04/2020] [Indexed: 06/11/2023]
Abstract
Ocean acidification will likely change the structure and function of coastal marine ecosystems over coming decades. Volcanic carbon dioxide seeps generate dissolved CO2 and pH gradients that provide realistic insights into the direction and magnitude of these changes. Here, we used fish and benthic community surveys to assess the spatio-temporal dynamics of fish community properties off CO2 seeps in Japan. Adding to previous evidence from ocean acidification ecosystem studies conducted elsewhere, our findings documented shifts from calcified to non-calcified habitats with reduced benthic complexity. In addition, we found that such habitat transition led to decreased diversity of associated fish and to selection of those fish species better adapted to simplified ecosystems dominated by algae. Our data suggest that near-future projected ocean acidification levels will oppose the ongoing range expansion of coral reef-associated fish due to global warming.
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Affiliation(s)
- Carlo Cattano
- Department of Earth and Marine Sciences (DiSTeM), University of Palermo, via Archirafi 20-22, 90123 Palermo, Italy; CoNISMa (Interuniversity Consortium of Marine Sciences), Piazzale Flaminio 9, 00196 Rome, Italy.
| | - Sylvain Agostini
- Shimoda Marine Research Center, University of Tsukuba, 5-10-1 Shimoda, 415-0025 Shizuoka, Japan
| | - Ben P Harvey
- Shimoda Marine Research Center, University of Tsukuba, 5-10-1 Shimoda, 415-0025 Shizuoka, Japan
| | - Shigeki Wada
- Shimoda Marine Research Center, University of Tsukuba, 5-10-1 Shimoda, 415-0025 Shizuoka, Japan
| | - Federico Quattrocchi
- IRBIM - Istituto per le Risorse Biologiche e le Biotecnologie Marine, CNR - National Research Council, Via Luigi Vaccara 61, 91026 Mazara del Vallo, TP, Italy
| | - Gabriele Turco
- Department of Earth and Marine Sciences (DiSTeM), University of Palermo, via Archirafi 20-22, 90123 Palermo, Italy; CoNISMa (Interuniversity Consortium of Marine Sciences), Piazzale Flaminio 9, 00196 Rome, Italy
| | - Kazuo Inaba
- Shimoda Marine Research Center, University of Tsukuba, 5-10-1 Shimoda, 415-0025 Shizuoka, Japan
| | - Jason M Hall-Spencer
- Shimoda Marine Research Center, University of Tsukuba, 5-10-1 Shimoda, 415-0025 Shizuoka, Japan; Marine Biology and Ecology Research Centre, University of Plymouth, Plymouth, PL4 8AA, UK
| | - Marco Milazzo
- Department of Earth and Marine Sciences (DiSTeM), University of Palermo, via Archirafi 20-22, 90123 Palermo, Italy; CoNISMa (Interuniversity Consortium of Marine Sciences), Piazzale Flaminio 9, 00196 Rome, Italy
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8
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Species better track climate warming in the oceans than on land. Nat Ecol Evol 2020; 4:1044-1059. [PMID: 32451428 DOI: 10.1038/s41559-020-1198-2] [Citation(s) in RCA: 173] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 04/03/2020] [Indexed: 12/30/2022]
Abstract
There is mounting evidence of species redistribution as climate warms. Yet, our knowledge of the coupling between species range shifts and isotherm shifts remains limited. Here, we introduce BioShifts-a global geo-database of 30,534 range shifts. Despite a spatial imbalance towards the most developed regions of the Northern Hemisphere and a taxonomic bias towards the most charismatic animals and plants of the planet, data show that marine species are better at tracking isotherm shifts, and move towards the pole six times faster than terrestrial species. More specifically, we find that marine species closely track shifting isotherms in warm and relatively undisturbed waters (for example, the Central Pacific Basin) or in cold waters subject to high human pressures (for example, the North Sea). On land, human activities impede the capacity of terrestrial species to track isotherm shifts in latitude, with some species shifting in the opposite direction to isotherms. Along elevational gradients, species follow the direction of isotherm shifts but at a pace that is much slower than expected, especially in areas with warm climates. Our results suggest that terrestrial species are lagging behind shifting isotherms more than marine species, which is probably related to the interplay between the wider thermal safety margin of terrestrial versus marine species and the more constrained physical environment for dispersal in terrestrial versus marine habitats.
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9
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Díaz-Marrero AR, Rodríguez González MC, Hernández Creus A, Rodríguez Hernández A, Fernández JJ. Damages at the nanoscale on red blood cells promoted by fire corals. Sci Rep 2019; 9:14298. [PMID: 31586105 PMCID: PMC6778144 DOI: 10.1038/s41598-019-50744-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 09/13/2019] [Indexed: 02/08/2023] Open
Abstract
The hydrocoral Millepora alcicornis, known as fire coral, biosynthesize protein toxins with phospholipase A2 (PLA2) activity as a main defense mechanism; proteins that rapidly catalyse the hydrolysis at the sn-2 position of phosphatidylcholine-type phospholipids of cellular membranes. This hydrolysis mechanism triggers a structural damage in the outer leaflet of the red blood cells (RBC) membrane, by generating pores in the lipid bilayer that leads to a depletion of the cellular content of the damaged cell. A secondary mechanism, tentatively caused by pore-forming proteins toxins (PFTs), has been observed. The use of atomic force microscopy (AFM) has allowed to visualize the evolution of damages produced on the surface of the cells at the nanoscale level along the time.
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Affiliation(s)
- Ana R Díaz-Marrero
- Instituto Universitario de Bio-Orgánica Antonio González (IUBO AG), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Universidad de La Laguna (ULL), Avda, Astrofísico Francisco Sánchez 2, 38206, La Laguna, Tenerife, Spain
| | - Miriam C Rodríguez González
- Departamento de Química, Área de Química Física, Instituto de Materiales y Nanotecnología (IMN), Universidad de La Laguna (ULL), Avda. Astrofísico Francisco Sánchez s.n., 38206, La Laguna, Tenerife, Spain
| | - Alberto Hernández Creus
- Departamento de Química, Área de Química Física, Instituto de Materiales y Nanotecnología (IMN), Universidad de La Laguna (ULL), Avda. Astrofísico Francisco Sánchez s.n., 38206, La Laguna, Tenerife, Spain
| | - Adriana Rodríguez Hernández
- Departamento de Biología Animal, Edafología y Geología. UD Ciencias Marinas. Facultad de Ciencias (Sección Biología), Universidad de La Laguna (ULL), Avda. Astrofísico Francisco Sánchez s.n., 38206, La Laguna, Tenerife, Spain
| | - José J Fernández
- Instituto Universitario de Bio-Orgánica Antonio González (IUBO AG), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Universidad de La Laguna (ULL), Avda, Astrofísico Francisco Sánchez 2, 38206, La Laguna, Tenerife, Spain. .,Departamento de Química Orgánica, Universidad de La Laguna (ULL), Avda. Astrofísico Francisco Sánchez s.n., 38206, La Laguna, Tenerife, Spain.
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10
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Chen B, Yu K, Liang J, Huang W, Wang G, Su H, Qin Z, Huang X, Pan Z, Luo W, Luo Y, Wang Y. Latitudinal Variation in the Molecular Diversity and Community Composition of Symbiodiniaceae in Coral From the South China Sea. Front Microbiol 2019; 10:1278. [PMID: 31275256 PMCID: PMC6591375 DOI: 10.3389/fmicb.2019.01278] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 05/22/2019] [Indexed: 01/18/2023] Open
Abstract
Coral reefs are continuing to decline worldwide due to anthropogenic climate change. The study of the molecular diversity and biogeographical patterns of Symbiodiniaceae, is essential to understand the adaptive potential and resilience of coral–algal symbiosis. Next generation sequencing was used to analyze the Symbiodiniaceae rDNA internal transcribed spacer 2 marker genes from 178 reef-building coral samples in eight coral habitats across approximately 13° of latitude in the South China Sea (SCS). A total of three Symbiodiniaceae genera, Cladocopium, Durusdinium, and Gerakladium, as well as 31 dominant Symbiodiniaceae types, were identified. Symbiodiniaceae richness, diversity, and community composition varied according to latitude; intermediate and low latitude coral reefs (IR and LR) have higher Symbiodiniaceae richness and diversity than high latitude coral habitats (HC and HR). A PERMANOVA analysis found significant differences in the Symbiodiniaceae community composition in the SCS (F = 14.75, R2 = 0.20, p = 0.001 < 0.01). The major dominant Symbiodiniaceae types were C1 in the HC and the HR, C1/Cspc/C50/C15 and D1 in the IR, and C3u and C15 in the LR. Canonical correspondence analysis showed that the relative abundance of different Symbiodiniaceae types is affected by multiple environmental factors. Phylogenetic analysis indicated that the Symbiodiniaceae type Cladocopium, which shared common ancestors, shows similar environmental adaptability. Based on these results, we suggest that coral host species played a relatively small role in the identity of the dominant Symbiodiniaceae type. Therefore, the biogeographical patterns of Symbiodiniaceae may be mainly affected by environmental factors. Our research provides a comprehensive overview of the biogeography of Symbiodiniaceae in the SCS, where coral communities and reefs are widely distributed across different latitude regions and have variable environmental conditions. Our data will provide support for further study of the regional diversification of Symbiodiniaceae and the ecological resilience of the coral-Symbiodiniaceae symbioses.
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Affiliation(s)
- Biao Chen
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning, China.,Coral Reef Research Center of China, Guangxi University, Nanning, China.,School of Marine Sciences, Guangxi University, Nanning, China
| | - Kefu Yu
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning, China.,Coral Reef Research Center of China, Guangxi University, Nanning, China.,School of Marine Sciences, Guangxi University, Nanning, China
| | - Jiayuan Liang
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning, China.,Coral Reef Research Center of China, Guangxi University, Nanning, China.,School of Marine Sciences, Guangxi University, Nanning, China
| | - Wen Huang
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning, China.,Coral Reef Research Center of China, Guangxi University, Nanning, China.,School of Marine Sciences, Guangxi University, Nanning, China
| | - Guanghua Wang
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning, China.,Coral Reef Research Center of China, Guangxi University, Nanning, China.,School of Marine Sciences, Guangxi University, Nanning, China
| | - Hongfei Su
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning, China.,Coral Reef Research Center of China, Guangxi University, Nanning, China.,School of Marine Sciences, Guangxi University, Nanning, China
| | - Zhenjun Qin
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning, China.,Coral Reef Research Center of China, Guangxi University, Nanning, China.,School of Marine Sciences, Guangxi University, Nanning, China
| | - Xueyong Huang
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning, China.,Coral Reef Research Center of China, Guangxi University, Nanning, China.,School of Marine Sciences, Guangxi University, Nanning, China
| | - Ziliang Pan
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning, China.,Coral Reef Research Center of China, Guangxi University, Nanning, China.,School of Marine Sciences, Guangxi University, Nanning, China
| | - Wenwen Luo
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning, China.,Coral Reef Research Center of China, Guangxi University, Nanning, China.,School of Marine Sciences, Guangxi University, Nanning, China
| | - Yanqiu Luo
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning, China.,Coral Reef Research Center of China, Guangxi University, Nanning, China.,School of Marine Sciences, Guangxi University, Nanning, China
| | - Yinghui Wang
- Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning, China.,Coral Reef Research Center of China, Guangxi University, Nanning, China.,School of Marine Sciences, Guangxi University, Nanning, China
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11
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Lima JS, Zalmon IR, Love M. Overview and trends of ecological and socioeconomic research on artificial reefs. MARINE ENVIRONMENTAL RESEARCH 2019; 145:81-96. [PMID: 30837123 DOI: 10.1016/j.marenvres.2019.01.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 01/18/2019] [Accepted: 01/23/2019] [Indexed: 06/09/2023]
Abstract
It is presented a systematic literature review of artificial reef research, including 620 studies throughout the world from 1962 to 2018. The primary focus of this study was to examine long-term trends in research, focusing on ecological and socioeconomic questions, and to develop new research directions for this field. From 1962 to the beginning of the 1990s, the United States and Japan were the main centers of artificial reef research. Subsequently, researchers in several other countries (particularly China, Australia, Italy, Brazil, and the United Kingdom) began to focus on this subject, resulting in an increase in the number of artificial reef studies. In general, publications about artificial reefs have concentrated on investigating the structure of populations and marine communities and evaluating new technical designs and materials to construct artificial habitats. The science of artificial reefs is responding to new challenges with an increase in more elaborate techniques, such as the use of remotely-operated submarines, organic indicators, isotopes, and molecular biology, while research that evaluates the socioeconomic aspects of artificial reefs is lacking. There are many aspects that deserve more research attention, such as the use of alternative inert materials, environmental impact assessment and mitigation, and analysis of conflicts with affected fisheries communities. The greater challenge is to overcome the apparent division between theory vs. application and to include robust management models of these artificial environments.
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Affiliation(s)
- Juliano Silva Lima
- Federal Institute of Education, Science and Technology, Sergipe, Brazil; Centre of Bioscience and Biotechnology, University of North Rio de Janeiro, Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - Ilana Rosental Zalmon
- Centre of Bioscience and Biotechnology, University of North Rio de Janeiro, Campos dos Goytacazes, Rio de Janeiro, Brazil.
| | - Milton Love
- Marine Science Institute, University of California Santa Barbara, Santa Barbara, CA, USA
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12
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Nakabayashi A, Yamakita T, Nakamura T, Aizawa H, Kitano YF, Iguchi A, Yamano H, Nagai S, Agostini S, Teshima KM, Yasuda N. The potential role of temperate Japanese regions as refugia for the coral Acropora hyacinthus in the face of climate change. Sci Rep 2019; 9:1892. [PMID: 30760801 PMCID: PMC6374466 DOI: 10.1038/s41598-018-38333-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 12/20/2018] [Indexed: 11/15/2022] Open
Abstract
As corals in tropical regions are threatened by increasing water temperatures, poleward range expansion of reef-building corals has been observed, and temperate regions are expected to serve as refugia in the face of climate change. To elucidate the important indicators of the sustainability of coral populations, we examined the genetic diversity and connectivity of the common reef-building coral Acropora hyacinthus along the Kuroshio Current, including recently expanded (<50 years) populations. Among the three cryptic lineages found, only one was distributed in temperate regions, which could indicate the presence of Kuroshio-associated larval dispersal barriers between temperate and subtropical regions, as shown by oceanographic simulations as well as differences in environmental factors. The level of genetic diversity gradually decreased towards the edge of the species distribution. This study provides an example of the reduced genetic diversity in recently expanded marginal populations, thus indicating the possible vulnerability of these populations to environmental changes. This finding underpins the importance of assessing the genetic diversity of newly colonized populations associated with climate change for conservation purposes. In addition, this study highlights the importance of pre-existing temperate regions as coral refugia, which has been rather underappreciated in local coastal management.
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Affiliation(s)
- Aki Nakabayashi
- Department of Marine Biology and Environmental Sciences, University of Miyazaki, Faculty of Agriculture, Gakuen- kibanadai-nishi-1-1, Miyazaki, 889-2192, Japan
| | - Takehisa Yamakita
- R&D Center for Submarine Resource, Japan Agency for Marine-Earth Science and Technology, 2-15, Natsushima-cho, Yokosuka-city, Kanagawa, 237-0061, Japan
| | - Takashi Nakamura
- Department of Transdisciplinary Science and Engineering, School of Environment and Society, Tokyo Institute of Technology, O-okayama 2-12-1-W8-5, Meguro-ku, Tokyo, 152-8552, Japan
| | - Hiroaki Aizawa
- Department of Transdisciplinary Science and Engineering, School of Environment and Society, Tokyo Institute of Technology, O-okayama 2-12-1-W8-5, Meguro-ku, Tokyo, 152-8552, Japan
| | - Yuko F Kitano
- Organization for Promotion of Tenure Track, University of Miyazaki, Faculty of Agriculture, Gakuen- kibanadai-nishi-1-1, Miyazaki, 889-2192, Japan.,Iriomote station, Tropical Biosphere Research Center, University of Ryukyus, 870 Uehara, Taketomi, Okinawa, 907-1541, Japan.,National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba-shi, Ibaraki, 305-8506, Japan
| | - Akira Iguchi
- Department of Bioresources Engineering, National Institute of Technology, Okinawa College, 905 Henoko, Nago-City, Okinawa, 905-2192, Japan.,Institute of Geology and Geoinformation, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8567, Japan
| | - Hiroya Yamano
- National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba-shi, Ibaraki, 305-8506, Japan
| | - Satoshi Nagai
- Research Center for Aquatic Genomics, National Research Institute of Fisheries Science, 2-12-4 Fukuura, Kanazawa-ku, Yokohama, Kanagawa, 236-8648, Japan
| | - Sylvain Agostini
- Shimoda Marine Research Center, University of Tsukuba, Shimoda 5-10-1, Shizuoka, 415-0025, Japan
| | - Kosuke M Teshima
- Department of Biology, Faculty of Science, Kyushu University 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Nina Yasuda
- Organization for Promotion of Tenure Track, University of Miyazaki, Faculty of Agriculture, Gakuen- kibanadai-nishi-1-1, Miyazaki, 889-2192, Japan.
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13
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Serrano E, Ribes M, Coma R. Demographics of the zooxanthellate coral Oculina patagonica along the Mediterranean Iberian coast in relation to environmental parameters. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 634:1580-1592. [PMID: 29710655 DOI: 10.1016/j.scitotenv.2018.04.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 04/03/2018] [Accepted: 04/03/2018] [Indexed: 06/08/2023]
Abstract
Marine ecosystems are threatened by cumulative human-related impacts that cause structural and functional alterations. In the Mediterranean Sea, the zooxanthellate coral Oculina patagonica (Scleractinia, Oculinidae) can turn algal forests into coral-dominated ecosystems and provides a case study for examining how zooxanthellate corals can affect the structure of algal-dominated shallow-water rocky ecosystems in temperate areas. Our goal was to provide a quantitative baseline assessment of O. patagonica demographics along ~1300km of the Mediterranean Iberian coast and relate them to environmental parameters. The highest coral success was in the South Balearic Sea zone, where the populations exhibited >6-fold higher mean living coral cover, lower partial colony mortality and colony size distributions indicating that the populations in this zone were growing faster than those in the peripheral south-west (North Alborán Sea) and north-east (Mid and North Balearic Sea, and West Gulf of Lyons) zones. The coral demographics (i.e., density, cover, and skewness and kurtosis coefficients of colony size distributions) were positively correlated with each other and the annual mean seawater temperature (ST), 10th-ST percentile (P10th-ST), 90th-ST percentile (P90th-ST) and photosynthetically active radiation at 3-m depth (PAR-3m), but they were negatively correlated with chlorophyll-a. Based on these results, we identified the following thresholds that may constrain the growth of O. patagonica colonies and populations: annual mean ST <19-20°C, P10th-ST <14°C, P90th-ST <25°C and >27°C, and PAR-3m <30molphotonsm-2day-1. The species abundance along the Iberian coast conforms to the abundant-center pattern of distribution. However, the coral demographics indicated that this pattern was not only related to the time of establishment but also to differences in coral population growth, which were correlated with key environmental parameters. Our results contribute understanding of the forces driving population growth of O. patagonica and support the hypothesis of an ongoing coral-mediated tropicalization of macroalgae-dominated temperate ecosystems.
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Affiliation(s)
- Eduard Serrano
- Centre d'Estudis Avançats de Blanes-Consejo Superior de Investigaciones Científicas (CEAB-CSIC), Accés Cala Sant Francesc 14, 17300 Blanes, Girona, Spain.
| | - Marta Ribes
- Institut de Ciències del Mar-Consejo Superior de Investigaciones Científicas (ICM-CSIC), Passeig Marítim Barceloneta 37-49, 08003 Barcelona, Spain.
| | - Rafel Coma
- Centre d'Estudis Avançats de Blanes-Consejo Superior de Investigaciones Científicas (CEAB-CSIC), Accés Cala Sant Francesc 14, 17300 Blanes, Girona, Spain.
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14
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Leydet KP, Grupstra CGB, Coma R, Ribes M, Hellberg ME. Host-targeted RAD-Seq reveals genetic changes in the coralOculina patagonicaassociated with range expansion along the Spanish Mediterranean coast. Mol Ecol 2018; 27:2529-2543. [DOI: 10.1111/mec.14702] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 04/03/2018] [Accepted: 04/04/2018] [Indexed: 12/30/2022]
Affiliation(s)
- Karine Posbic Leydet
- Department of Biological Sciences; Louisiana State University; Baton Rouge Louisiana
| | - Carsten G. B. Grupstra
- Institute for Biodiversity and Ecosystem Dynamics; University of Amsterdam; Amsterdam The Netherlands
- Institut de Ciències del mar; Barcelona Spain
| | - Rafel Coma
- Centre d'Estudis Avançats de Blanes; Blanes Girona Spain
| | - Marta Ribes
- Institut de Ciències del mar; Barcelona Spain
| | - Michael E. Hellberg
- Department of Biological Sciences; Louisiana State University; Baton Rouge Louisiana
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15
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Anthropogenic marine litter composition in coastal areas may be a predictor of potentially invasive rafting fauna. PLoS One 2018; 13:e0191859. [PMID: 29385195 PMCID: PMC5792010 DOI: 10.1371/journal.pone.0191859] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 01/13/2018] [Indexed: 11/30/2022] Open
Abstract
Anthropogenic plastic pollution is a global problem. In the marine environment, one of its less studied effects is the transport of attached biota, which might lead to introductions of non-native species in new areas or aid in habitat expansions of invasive species. The goal of the present work was to assess if the material composition of beached anthropogenic litter is indicative of the rafting fauna in a coastal area and could thus be used as a simple and cost-efficient tool for risk assessment in the future. Beached anthropogenic litter and attached biota along the 200 km coastline of Asturias, central Bay of Biscay, Spain, were analysed. The macrobiotic community attached to fouled litter items was identified using genetic barcoding combined with visual taxonomic analysis, and compared between hard plastics, foams, other plastics and non-plastic items. On the other hand, the material composition of beached litter was analysed in a standardized area on each beach. From these two datasets, the expected frequency of several rafting taxa was calculated for the coastal area and compared to the actually observed frequencies. The results showed that plastics were the most abundant type of beached litter. Litter accumulation was likely driven by coastal sources (industry, ports) and river/sewage inputs and transported by near-shore currents. Rafting vectors were almost exclusively made up of plastics and could mainly be attributed to fishing activity and leisure/ household. We identified a variety of rafting biota, including species of goose barnacles, acorn barnacles, bivalves, gastropods, polychaetes and bryozoan, and hydrozoan colonies attached to stranded litter. Several of these species were non-native and invasive, such as the giant Pacific oyster (Crassostrea gigas) and the Australian barnacle (Austrominius modestus). The composition of attached fauna varied strongly between litter items of different materials. Plastics, except for foam, had a much more diverse attached community than non-plastic materials. The predicted frequency of several taxa attached to beached litter significantly correlated with the actually observed frequencies. Therefore we suggest that the composition of stranded litter on a beach or an area could allow for predictions about the corresponding attached biotic community, including invasive species.
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16
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Dong YW, Huang XW, Wang W, Li Y, Wang J. The marine ‘great wall’ of China: local- and broad-scale ecological impacts of coastal infrastructure on intertidal macrobenthic communities. DIVERS DISTRIB 2016. [DOI: 10.1111/ddi.12443] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Yun-wei Dong
- State Key Laboratory of Marine Environmental Science; Xiamen University; Xiamen 361102 Fujian Province China
- Marine Biodiversity and Global Change Laboratory; College of Ocean and Earth Sciences; Xiamen University; Xiamen 361102 Fujian Province China
| | - Xiong-wei Huang
- State Key Laboratory of Marine Environmental Science; Xiamen University; Xiamen 361102 Fujian Province China
- Marine Biodiversity and Global Change Laboratory; College of Ocean and Earth Sciences; Xiamen University; Xiamen 361102 Fujian Province China
| | - Wei Wang
- State Key Laboratory of Marine Environmental Science; Xiamen University; Xiamen 361102 Fujian Province China
- Marine Biodiversity and Global Change Laboratory; College of Ocean and Earth Sciences; Xiamen University; Xiamen 361102 Fujian Province China
| | - Yan Li
- State Key Laboratory of Marine Environmental Science; Xiamen University; Xiamen 361102 Fujian Province China
| | - Jie Wang
- State Key Laboratory of Marine Environmental Science; Xiamen University; Xiamen 361102 Fujian Province China
- Marine Biodiversity and Global Change Laboratory; College of Ocean and Earth Sciences; Xiamen University; Xiamen 361102 Fujian Province China
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17
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Leydet KP, Hellberg ME. The invasive coral Oculina patagonica has not been recently introduced to the Mediterranean from the western Atlantic. BMC Evol Biol 2015; 15:79. [PMID: 25940207 PMCID: PMC4418043 DOI: 10.1186/s12862-015-0356-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 04/21/2015] [Indexed: 11/23/2022] Open
Abstract
Background Effective policies, management, and scientific research programs depend on the correct identification of invasive species as being either native or introduced. However, many species continue to be misidentified. Oculina patagonica, first recorded in the Mediterranean Sea in 1966, is believed to have been introduced in anthropogenic times and expanding in a west to east direction. However, its present identification and status as a recently introduced species remain to be explored. In this study, we used multi-locus genetic data to test whether O. patagonica in the Mediterranean has been recently introduced from the western North Atlantic. Results We found no genetic or historical demographic evidence to support a recent introduction of O. patagonica from the western North Atlantic or an expansion across the Mediterranean. Instead, Mediterranean and Atlantic populations are genetically distinct and appear to have begun diverging about 5 Mya. We also found evidence of a fossil record of Oculina spp. existing in the eastern North Atlantic millions of years before the present. Conclusions Our results suggest that Mediterranean populations of O. patagonica have long been isolated from the western Atlantic, either in undetectable numbers or overlooked and undersampled sites and habitats, and have only recently been expanding to invasive levels as a result of environmental changes. Accurate identification of species’ invasive statuses will enable more effective research programs aimed at better understanding the mechanisms promoting the invasive nature of species, which can then lead to the implementation of efficient management plans. Electronic supplementary material The online version of this article (doi:10.1186/s12862-015-0356-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Karine Posbic Leydet
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, 70803, USA.
| | - Michael E Hellberg
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, 70803, USA.
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18
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Appelqvist C, Al-Hamdani ZK, Jonsson PR, Havenhand JN. Climate envelope modeling and dispersal simulations show little risk of range extension of the Shipworm, Teredo navalis (L.), in the Baltic sea. PLoS One 2015; 10:e0119217. [PMID: 25768305 PMCID: PMC4359003 DOI: 10.1371/journal.pone.0119217] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 01/11/2015] [Indexed: 11/29/2022] Open
Abstract
The shipworm, Teredo navalis, is absent from most of the Baltic Sea. In the last 20 years, increased frequency of T. navalis has been reported along the southern Baltic Sea coasts of Denmark, Germany, and Sweden, indicating possible range-extensions into previously unoccupied areas. We evaluated the effects of historical and projected near-future changes in salinity, temperature, and oxygen on the risk of spread of T. navalis in the Baltic. Specifically, we developed a simple, GIS-based, mechanistic climate envelope model to predict the spatial distribution of favourable conditions for adult reproduction and larval metamorphosis of T. navalis, based on published environmental tolerances to these factors. In addition, we used a high-resolution three-dimensional hydrographic model to simulate the probability of spread of T. navalis larvae within the study area. Climate envelope modeling showed that projected near-future climate change is not likely to change the overall distribution of T. navalis in the region, but will prolong the breeding season and increase the risk of shipworm establishment at the margins of the current range. Dispersal simulations indicated that the majority of larvae were philopatric, but those that spread over a wider area typically spread to areas unfavourable for their survival. Overall, therefore, we found no substantive evidence for climate-change related shifts in the distribution of T. navalis in the Baltic Sea, and no evidence for increased risk of spread in the near-future.
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Affiliation(s)
- Christin Appelqvist
- Department of Biological & Environmental Sciences, University of Gothenburg, Tjärnö, 452 96 Strömstad, Sweden
| | - Zyad K. Al-Hamdani
- Geological Survey of Denmark and Greenland, Øster Voldgade 10, DK-1350 Copenhagen K, Denmark
| | - Per R. Jonsson
- Department of Biological & Environmental Sciences, University of Gothenburg, Tjärnö, 452 96 Strömstad, Sweden
| | - Jon N. Havenhand
- Department of Biological & Environmental Sciences, University of Gothenburg, Tjärnö, 452 96 Strömstad, Sweden
- * E-mail:
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19
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Rodolfo-Metalpa R, Hoogenboom MO, Rottier C, Ramos-Esplá A, Baker AC, Fine M, Ferrier-Pagès C. Thermally tolerant corals have limited capacity to acclimatize to future warming. GLOBAL CHANGE BIOLOGY 2014; 20:3036-3049. [PMID: 24616144 DOI: 10.1111/gcb.12571] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Accepted: 02/25/2014] [Indexed: 06/03/2023]
Abstract
Thermal stress affects organism performance differently depending on the ambient temperature to which they are acclimatized, which varies along latitudinal gradients. This study investigated whether differences in physiological responses to temperature are consistent with regional differences in temperature regimes for the stony coral Oculina patagonica. To resolve this question, we experimentally assessed how colonies originating from four different locations characterized by >3 °C variation in mean maximum annual temperature responded to warming from 20 to 32 °C. We assessed plasticity in symbiont identity, density, and photosynthetic properties, together with changes in host tissue biomass. Results show that, without changes in the type of symbiont hosted by coral colonies, O. patagonica has limited capacity to acclimatize to future warming. We found little evidence of variation in overall thermal tolerance, or in thermal optima, in response to spatial variation in ambient temperature. Given that the invader O. patagonica is a relatively new member of the Mediterranean coral fauna, our results also suggest that coral populations may need to remain isolated for a long period of time for thermal adaptation to potentially take place. Our study indicates that for O. patagonica, mortality associated with thermal stress manifests primarily through tissue breakdown under moderate but prolonged warming (which does not impair symbiont photosynthesis and, therefore, does not lead to bleaching). Consequently, projected global warming is likely to cause repeat incidents of partial and whole colony mortality and might drive a gradual range contraction of Mediterranean corals.
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Affiliation(s)
- Riccardo Rodolfo-Metalpa
- Centre Scientifique de Monaco, c/o Musée Océanographique, 1 avenue Saint Martin, MC-98000, Monaco
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20
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Rubio-Portillo E, Yarza P, Peñalver C, Ramos-Esplá AA, Antón J. New insights into Oculina patagonica coral diseases and their associated Vibrio spp. communities. ISME JOURNAL 2014; 8:1794-807. [PMID: 24621525 DOI: 10.1038/ismej.2014.33] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Revised: 02/04/2014] [Accepted: 02/05/2014] [Indexed: 11/09/2022]
Abstract
Bleaching of Oculina patagonica has been extensively studied in the Eastern Mediterranean Sea, although no studies have been carried out in the Western basin. In 1996 Vibrio mediterranei was reported as the causative agent of bleaching in O. patagonica but it has not been related to bleached or healthy corals since 2003, suggesting that it was no longer involved in bleaching of O. patagonica. In an attempt to clarify the relationship between Vibrio spp., seawater temperature and coral diseases, as well as to investigate the putative differences between Eastern and Western Mediterranean basins, we have analysed the seasonal patterns of the culturable Vibrio spp. assemblages associated with healthy and diseased O. patagonica colonies. Two sampling points located in the Spanish Mediterranean coast were chosen for this study: Alicante Harbour and the Marine Reserve of Tabarca. A complex and dynamic assemblage of Vibrio spp. was present in O. patagonica along the whole year and under different environmental conditions and coral health status. While some Vibrio spp. were detected all year around in corals, the known pathogens V. mediteranei and V. coralliilyticus were only present in diseased specimens. The pathogenic potential of these bacteria was studied by experimental infection under laboratory conditions. Both vibrios caused diseased signs from 24 °C, being higher and faster at 28 °C. Unexpectedly, the co-inoculation of these two Vibrio species seemed to have a synergistic pathogenic effect over O. patagonica, as disease signs were readily observed at temperatures at which bleaching is not normally observed.
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Affiliation(s)
- Esther Rubio-Portillo
- Dpto. Ciencias del Mar y Biología Aplicada, Universidad de Alicante, Alicante, Spain
| | | | - Cindy Peñalver
- Department of Physiology, Genetics, and Microbiology, University of Alicante, Alicante, Spain
| | - Alfonso A Ramos-Esplá
- 1] Dpto. Ciencias del Mar y Biología Aplicada, Universidad de Alicante, Alicante, Spain [2] Centro de Investigación Marina (CIMAR), Universidad de Alicante-Ayuntamiento de Santa Pola, Cabo de Santa Pola s/n, Alicante, Spain
| | - Josefa Antón
- 1] Department of Physiology, Genetics, and Microbiology, University of Alicante, Alicante, Spain [2] Instituto Multidisciplinar para el Estudio del Medio Ramón Margalef, Universidad de Alicante, Alicante, Spain
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