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Hakim M, Patel I. High‐performance thin‐layer chromatography a densitometric detection of multi‐class bioactive compounds from three species of marine algae
Padina
and identification of antioxidant substance with mass spectrometry. SEPARATION SCIENCE PLUS 2022. [DOI: 10.1002/sscp.202200083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Masuma Hakim
- Department of Life Sciences Hemchandracharya North Gujarat University Patan India
| | - Illa Patel
- Department of Life Sciences Hemchandracharya North Gujarat University Patan India
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Lagourgue L, Leliaert F, Payri CE. Historical biogeographical analysis of the Udoteaceae (Bryopsidales, Chlorophyta) elucidates origins of high species diversity in the Central Indo-Pacific, Western Indian Ocean and Greater Caribbean regions. Mol Phylogenet Evol 2022; 169:107412. [PMID: 35031470 DOI: 10.1016/j.ympev.2022.107412] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 11/19/2021] [Accepted: 12/07/2021] [Indexed: 11/28/2022]
Abstract
There is a growing interest in elucidating the biogeographical processes underlying biodiversity patterns of seaweeds, with recent studies largely focusing on red and brown macroalgae. This study focuses on the siphonous green algal family Udoteaceae, which is diverse and globally distributed in tropical to warm-temperate seas, and includes species that form important components of tropical reefs. We explored the historical processes that have shaped current biodiversity patterns in the family by analyzing a comprehensive dataset of 568 specimens sampled across its geographical range, and including 45 species, corresponding to 59% of the known diversity. Historical biogeographical analysis was based on a three-locus time-calibrated phylogeny, and probabilistic modeling of geographical range evolution. Many species were found to have restricted ranges, indicative of low dispersal capacity. Our analysis points toward a Western Tethys origin and early diversification of the Udoteaceae in the Triassic period. Three centers of diversity were identified, which are, in order of highest species richness, the Central Indo-Pacific, the Western Indian Ocean, and the Greater Caribbean. Different drivers have likely played a role in shaping these diversity centres. Species richness in the Central Indo-Pacific likely resulted from speciation within the region, as well as recolonization from neighbouring regions, and overlap of some wider ranged species, corroborating the "biodiversity feedback" model. Species richness in the Western Indian Ocean can be explained by ancient and more recent diversification within the region, and dispersal from the Central Indo-Pacific. The Greater Caribbean region was colonized more recently, followed by diversification within the region.
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Affiliation(s)
- Laura Lagourgue
- Sorbonne Universités, UPMC Univ Paris 06, IFD, 4 Place Jussieu, 75252 Paris Cedex 05, France; UMR ENTROPIE (IRD, UR, UNC, CNRS, IFREMER), Institut de Recherche pour le Développement, B.P. A5 Nouméa Cedex, Nouvelle-Calédonie, 98848, France.
| | | | - Claude E Payri
- UMR ENTROPIE (IRD, UR, UNC, CNRS, IFREMER), Institut de Recherche pour le Développement, B.P. A5 Nouméa Cedex, Nouvelle-Calédonie, 98848, France
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Orlando-Bonaca M, Pitacco V, Bajt O, Falnoga I, Hudobivnik MJ, Mazej D, Šlejkovec Z, Bonanno G. Spatial and temporal distribution of trace elements in Padina pavonica from the northern Adriatic Sea. MARINE POLLUTION BULLETIN 2021; 172:112874. [PMID: 34454384 DOI: 10.1016/j.marpolbul.2021.112874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 08/12/2021] [Accepted: 08/14/2021] [Indexed: 06/13/2023]
Abstract
Chemical pollution is a major environmental concern especially in coastal areas, having adverse impacts on marine organisms and ecosystem services. Macroalgae can accumulate trace elements, but available studies are restricted to a limited number of elements and species. The goal of this research was to assess, seasonally, the concentrations of 22 elements in the brown alga Padina pavonica from monitoring sampling sites in Slovenian waters. The concentration of most elements in thalli differed significantly between spring and autumn, with generally higher levels in autumn samples. However, it was not possible to correlate these concentrations with the ecological status of macroalgae. The maximum values set by European regulations for the potentially hazardous As, Cd and Hg in food and feed were never exceeded, while Pb concentrations were slightly higher. The results show that P. pavonica can act as an effective bioindicator of chemical pollution.
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Affiliation(s)
- Martina Orlando-Bonaca
- Marine Biology Station Piran, National Institute of Biology, Fornače 41, SI-6330 Piran, Slovenia
| | - Valentina Pitacco
- Marine Biology Station Piran, National Institute of Biology, Fornače 41, SI-6330 Piran, Slovenia
| | - Oliver Bajt
- Marine Biology Station Piran, National Institute of Biology, Fornače 41, SI-6330 Piran, Slovenia; University of Ljubljana, Faculty of Maritime Studies and Transport, Pot pomorščakov 4, 6320 Portorož, Slovenia
| | - Ingrid Falnoga
- Department of Environmental Sciences, Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
| | - Marta Jagodic Hudobivnik
- Department of Environmental Sciences, Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
| | - Darja Mazej
- Department of Environmental Sciences, Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
| | - Zdenka Šlejkovec
- Department of Environmental Sciences, Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
| | - Giuseppe Bonanno
- Department of Agriculture, Food and Environment, University of Catania, Via Santa Sofia 100, IT-95123 Catania, Italy.
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Ni-Ni-Win, Hanyuda T, Kato A, Shimabukuro H, Uchimura M, Kawai H, Tokeshi M. Global Diversity and Geographic Distributions of Padina Species (Dictyotales, Phaeophyceae): New Insights Based on Molecular and Morphological Analyses. JOURNAL OF PHYCOLOGY 2021; 57:454-472. [PMID: 32975311 DOI: 10.1111/jpy.13076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 07/21/2020] [Accepted: 08/11/2020] [Indexed: 06/11/2023]
Abstract
The taxonomic status and species diversity of the brown algal genus Padina (Dictyotales, Phaeophyceae) was assessed based on DNA sequences and the morpho-anatomy of specimens collected worldwide, especially from tropical and subtropical western Pacific regions. Phylogenetic analyses using chloroplast rbcL and mitochondrial cox3 gene sequences demonstrated four distinct clades for newly collected samples with high bootstrap support. Each species clade possesses a suite of morphological features that are not shared by any known species of Padina. These are P. imbricata sp. nov., Padina lutea sp. nov., P. moffittianoides sp. nov., and P. nitida sp. nov. The occurrence of these and other species of Padina clearly points to an elevated diversity of the genus in tropical/subtropical waters of the western Pacific. Phylogenetic analyses provided new insights into biogeographic characteristics of the genus, with many species in the Pacific Ocean showing shared/overlapping distributions, whereas species from the Mediterranean/Atlantic and/or the Indian Ocean tend to be confined to particular regions. Consideration has also been given to the evolutionary time frame of the genus Padina based on molecular time trees: a time tree of the concatenated data set (rbcL + cox3) revealed the estimated divergence time in the mid-Cretaceous, whereas those of cox3 and rbcL showed older estimates pointing to the periods of mid-Jurassic and Early Cretaceous, respectively.
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Affiliation(s)
- Ni-Ni-Win
- Kyushu University Amakusa Marine Biological Laboratory, Reihoku-Amakusa, Kumamoto, 863-2507, Japan
| | - Takeaki Hanyuda
- Kobe University Research Center for Inland Seas, Rokkodai, Kobe, 657-8501, Japan
| | - Aki Kato
- Takehara Fisheries Research Station, Setouchi Field Science Center, Hiroshima University, Takehara, Hiroshima, 725-0024, Japan
| | - Hiromori Shimabukuro
- National Research Institute of Fisheries and Environment of Inland Sea, Fishery Research Agency, Hatsukaichi, Hiroshima, 739-0452, Japan
| | - Masayuki Uchimura
- Research Institute on Subtropical Ecosystems, 252 Yaga, Nago, Okinawa, 905-1631, Japan
| | - Hiroshi Kawai
- Kobe University Research Center for Inland Seas, Rokkodai, Kobe, 657-8501, Japan
| | - Mutsunori Tokeshi
- Kyushu University Amakusa Marine Biological Laboratory, Reihoku-Amakusa, Kumamoto, 863-2507, Japan
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Maximizing the Antioxidant Capacity of Padina pavonica by Choosing the Right Drying and Extraction Methods. Processes (Basel) 2021. [DOI: 10.3390/pr9040587] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Marine algae are becoming an interesting source of biologically active compounds with a promising application as nutraceuticals, functional food ingredients, and therapeutic agents. The effect of drying (freeze-drying, oven-drying, and shade-drying) and extraction methods (shaking at room temperature, shaking in an incubator at 60 °C, ultrasound-assisted extraction (UAE), and microwave-assisted extraction (MAE)) on the total phenolics content (TPC), total flavonoids content (TFC), and total tannins content (TTC), as well as antioxidant capacity of the water/ethanol extracts from Padina pavonica were investigated. The TPC, TFC, and TTC values of P. pavonica were in the range from 0.44 ± 0.03 to 4.32 ± 0.15 gallic acid equivalents in mg/g (mg GAE/g) dry algae, from 0.31 ± 0.01 to 2.87 ± 0.01 mg QE/g dry algae, and from 0.32 ± 0.02 to 10.41 ± 0.62 mg CE/g dry algae, respectively. The highest TPC was found in the freeze-dried sample in 50% ethanol, extracted by MAE (200 W, 60 °C, and 5 min). In all cases, freeze-dried samples extracted with ethanol (both 50% and 70%) had the higher antioxidant activity, while MAE as a green option reduces the extraction time without the loss of antioxidant activity in P. pavonica.
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Vieira C, Morrow K, D'Hondt S, Camacho O, Engelen AH, Payri CE, De Clerck O. Diversity, Ecology, Biogeography, and Evolution of the Prevalent Brown Algal Genus Lobophora in the Greater Caribbean Sea, Including the Description of Five New Species 1. JOURNAL OF PHYCOLOGY 2020; 56:592-607. [PMID: 32159226 DOI: 10.1111/jpy.12986] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 01/24/2020] [Indexed: 06/10/2023]
Abstract
Distributed in tropical and warm-temperate waters worldwide, Lobophora species are found across the Greater Caribbean (i.e., Caribbean sensu stricto, Gulf of Mexico, Florida, the Bahamas, and Bermuda). We presently discuss the diversity, ecology, biogeography, and evolution of the Greater Caribbean Lobophora species based on previous studies and an extensive number of samples collected across the eastern, southern, and to a lesser extent western Caribbean. A total of 18 Lobophora species are now documented from the Greater Caribbean, of which five are newly described (L. agardhii sp. nov., L. dickiei sp. nov., L. lamourouxii sp. nov., L. richardii sp. nov., and L. setchellii sp. nov.). Within the Greater Caribbean, the eastern Caribbean and the Central Province are the most diverse ecoregion and province (16 spp.), respectively. Observed distribution patterns indicate that Lobophora species from the Greater Caribbean have climate affinities (i.e., warm-temperate vs. tropical affinities). In total, 11 Lobophora species exclusively occur in the Greater Caribbean; six are present in the western Atlantic; two in the Indo-Pacific; and one in the eastern Pacific. Biogeographic analyses support that no speciation occurred across the Isthmus of Panama, and that the Greater Caribbean acted as a recipient region for species from the Indo-Pacific and as a region of diversification as well as a donor region to the North-eastern Atlantic. The Greater Caribbean is not an evolutionary dead end for Lobophora, but instead generates and exports diversity. Present results illustrate how sampling based on DNA identification is reshaping biogeographic patterns, as we know them.
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Affiliation(s)
- Christophe Vieira
- Phycology Research Group and Center for Molecular Phylogenetics and Evolution, Ghent University, Krijgslaan 281 (S8), Ghent, B-9000, Belgium
- Kobe University Research Center for Inland Seas, Rokkodai, Kobe, 657-8501, Japan
| | - Kathleen Morrow
- Molecular, Cellular, and Biomedical Sciences, University of New Hampshire, Durham, New Hampshire, 03824, USA
| | - Sofie D'Hondt
- Phycology Research Group and Center for Molecular Phylogenetics and Evolution, Ghent University, Krijgslaan 281 (S8), Ghent, B-9000, Belgium
| | - Olga Camacho
- Department of Biology, University of Louisiana at Lafayette, Lafayette, Louisiana, 70504-3602, USA
| | - Aschwin H Engelen
- CCMAR, Universidade do Algarve, Campus de Gambelas, Faro, 8005-139, Portugal
- CARMABI Research Station, Piscadera Bay, Willemstad, Curaçao
| | - Claude E Payri
- UMR ENTROPIE (IRD, UR, CNRS), LabEx-CORAIL, Institut de Recherche pour le Développement, B.P. A5, Nouméa Cedex, Nouvelle-Calédonie, 98848, France
| | - Olivier De Clerck
- Phycology Research Group and Center for Molecular Phylogenetics and Evolution, Ghent University, Krijgslaan 281 (S8), Ghent, B-9000, Belgium
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Camacho O, Fernández-García C, Vieira C, Gurgel CFD, Norris JN, Freshwater DW, Fredericq S. The systematics of Lobophora (Dictyotales, Phaeophyceae) in the western Atlantic and eastern Pacific oceans: eight new species. JOURNAL OF PHYCOLOGY 2019; 55:611-624. [PMID: 30805921 DOI: 10.1111/jpy.12850] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Accepted: 12/12/2018] [Indexed: 05/21/2023]
Abstract
Lobophora is a common tropical to temperate genus of brown algae found in a plethora of habitats including shallow and deep-water coral reefs, rocky shores, mangroves, seagrass beds, and rhodoliths beds. Recent molecular studies have revealed that Lobophora species diversity has been severely underestimated. Current estimates of the species numbers range from 100 to 140 species with a suggested center of diversity in the Central Indo-Pacific. This study used three molecular markers (cox3, rbcL, psbA), different single-marker species delimitation methods (GMYC, ABGD, PTP), and morphological evidence to evaluate Lobophora species diversity in the Western Atlantic and the Eastern Pacific oceans. Cox3 provided the greatest number of primary species hypotheses(PSH), followed by rbcL and then psbA. GMYC species delimitation analysis was the most conservative across all three markers, followed by PTP, and then ABGD. The most informative diagnostic morphological characters were thallus thickness and number of cell layers in both the medulla and the dorsal/ventral cortices. Following a consensus approach, 14 distinct Lobophora species were identified in the Western Atlantic and five in the Eastern Pacific. Eight new species from these two oceans were herein described: L. adpressa sp. nov., L. cocoensis sp. nov., L. colombiana sp. nov., L. crispata sp. nov., L. delicata sp. nov., L. dispersa sp. nov., L. panamensis sp. nov., and L. tortugensis sp. nov. This study showed that the best approach to confidently identify Lobophora species is to analyze DNA sequences (preferably cox3 and rbcL) followed by comparative morphological and geographical assessment.
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Affiliation(s)
- Olga Camacho
- Department of Biology, University of Louisiana at Lafayette, Lafayette, Louisiana, 70504-3602, USA
- Programa de Pós-Graduação em Biologia de Fungos, Algas e Plantas, Departamento de Botânica, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, 88040-900, Brazil
| | - Cindy Fernández-García
- Centro de Investigación en Ciencias del Mar y Limnología (CIMAR), Escuela de Biología, Universidad de Costa Rica, San Pedro, San José, 11501-2060, Costa Rica
| | - Christophe Vieira
- Phycology Research Group and Center for Molecular Phylogenetics and Evolution, Ghent University, Krijgslaan 281 (S8), B-9000, Ghent, Belgium
| | - Carlos Frederico D Gurgel
- Programa de Pós-Graduação em Biologia de Fungos, Algas e Plantas, Departamento de Botânica, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, 88040-900, Brazil
| | - James N Norris
- Department of Botany, NHB166, National Museum of Natural History, Smithsonian Institution, Washington, District of Columbia, 20013-7012, USA
| | - David Wilson Freshwater
- Center for Marine Science, University of North Carolina at Wilmington, Wilmington, North Carolina, 28403, USA
| | - Suzanne Fredericq
- Department of Biology, University of Louisiana at Lafayette, Lafayette, Louisiana, 70504-3602, USA
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Nieder C, Liao CP, Chen CA, Liu SL. Filamentous calcareous alga provides substrate for coral-competitive macroalgae in the degraded lagoon of Dongsha Atoll, Taiwan. PLoS One 2019; 14:e0200864. [PMID: 31095566 PMCID: PMC6522048 DOI: 10.1371/journal.pone.0200864] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Accepted: 05/05/2019] [Indexed: 12/11/2022] Open
Abstract
Background The chemically-rich seaweed Galaxaura is not only highly competitive with corals, but also provides substrate for other macroalgae. Its ecology and associated epiphytes remain largely unexplored. To fill this knowledge gap, we undertook an ecological assessment to explore the spatial variation, temporal dynamics, and diversity of epiphytic macroalgae of Galaxaura divaricata on patch reefs in the lagoon of Dongsha Atoll, a shallow coral reef ecosystem in the northern South China Sea that has been repeatedly impacted by mass coral bleaching events. Methods Twelve spatially independent patch reefs in the Dongsha lagoon were first surveyed to assess benthic composition in April 2016, and then revisited to determine G. divaricata cover in September 2017, with one additional Galaxaura-dominated reef (site 9). Four surveys over a period of 17 months were then carried out on a degraded patch reef site to assess the temporal variation in G. divaricata cover. Epiphytic macroalgae associated with G. divaricata were quantified and identified through the aid of DNA barcoding at this degraded site. Results Patch reefs in the Dongsha lagoon were degraded, exhibiting relatively low coral cover (5–43%), but high proportions of macroalgae (13–58%) and other substrate (rubble and dead corals; 23–69%). The distribution of G. divaricata was heterogeneous across the lagoon, with highest abundance (16–41%) in the southeast area. Temporal surveys showed consistently high covers (mean ± SD = 16.9 ± 1.21%) of G. divaricata for 17 months. Additional photographic evidence suggested that overgrowth of G. divaricata can persist for 3.5 years. Yet, G. divaricata provides substrate to other macroalgae (e.g., Lobophora sp.) that also limit the growth of corals. Conclusions Our study demonstrates that an allelopathic seaweed, such as G. divaricata, can overgrow degraded coral reefs for extended periods of time. By providing habitat for other harmful macroalgae, a prolonged Galaxaura overgrowth could further enhance the spread of macroalgae, and strengthen negative feedback loops, decreasing the recovery potential of degraded reefs.
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Affiliation(s)
- Carolin Nieder
- Leigh Marine Laboratory, Institute of Marine Science, University of Auckland, Leigh, New Zealand
| | - Chen-Pan Liao
- Department of Life Science & Center for Ecology and Environment, Tunghai University, Taichung, Taiwan
- Department of Biology, National Museum of Natural Science, Taichung, Taiwan
| | - Chaolun Allen Chen
- Biodiversity Research Center, Academia Sinica, Taipei, Taiwan
- Institute of Oceanography, National Taiwan University, Taipei, Taiwan
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan
| | - Shao-Lun Liu
- Department of Life Science & Center for Ecology and Environment, Tunghai University, Taichung, Taiwan
- * E-mail:
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Pezzolesi L, Peña V, Le Gall L, Gabrielson PW, Kaleb S, Hughey JR, Rodondi G, Hernandez-Kantun JJ, Falace A, Basso D, Cerrano C, Rindi F. Mediterranean Lithophyllum stictiforme (Corallinales, Rhodophyta) is a genetically diverse species complex: implications for species circumscription, biogeography and conservation of coralligenous habitats. JOURNAL OF PHYCOLOGY 2019; 55:473-492. [PMID: 30657167 DOI: 10.1111/jpy.12837] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 01/10/2019] [Indexed: 06/09/2023]
Abstract
Lithophyllum species in the Mediterranean Sea function as algal bioconstructors, contributing to the formation of biogenic habitats such as coralligenous concretions. In such habitats, thalli of Lithophyllum, consisting of crusts or lamellae with entire or lobed margins, have been variously referred to as either one species, L. stictiforme, or two species, L. stictiforme and L. cabiochiae, in the recent literature. We investigated species diversity and phylogenetic relationships in these algae by sequencing three markers (psbA and rbcL genes, cox2,3 spacer), in conjunction with methods for algorithmic delimitation of species (ABGD and GMYC). Mediterranean subtidal Lithophyllum belong to a well-supported lineage, hereby called the L. stictiforme complex, which also includes two species described from the Atlantic, L. lobatum and L. searlesii. Our results indicate that the L. stictiforme complex consists of at least 13 species. Among the Mediterranean species, some are widely distributed and span most of the western and central Mediterranean, whereas others appear to be restricted to specific localities. These patterns are interpreted as possibly resulting from allopatric speciation events that took place during the Messinian Salinity Crisis and subsequent glacial periods. A partial rbcL sequence from the lectotype of L. stictiforme unambiguously indicates that this name applies to the most common subtidal Lithophyllum in the central Mediterranean. We agree with recent treatments that considered L. cabiochiae and L. stictiforme conspecific. The diversity of Lithophyllum in Mediterranean coralligenous habitats has been substantially underestimated, and future work on these and other Mediterranean corallines should use identifications based on DNA sequences.
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Affiliation(s)
- Laura Pezzolesi
- Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Università di Bologna, Via Sant'Alberto 163, 48123, Ravenna, Italy
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy
| | - Viviana Peña
- Grupo BioCost, Departamento de Bioloxía, Facultade de Ciencias, Universidade da Coruña, 15071 A, Coruña, Spain
| | - Line Le Gall
- Institut Systématique Evolution Biodiversité (ISYEB), Muséum National d'Histoire Naturelle, CNRS, Sorbonne Université, EPHE, 57 rue Cuvier, CP 39, 75005, Paris, France
| | - Paul W Gabrielson
- Department of Biology and Herbarium, University of North Carolina, Coker Hall CB 3280, Chapel Hill, North Carolina, 27599-3280, USA
| | - Sara Kaleb
- Dipartimento di Scienze della Vita, Università di Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
| | - Jeffery R Hughey
- Division of Mathematics, Science, and Engineering, Hartnell College, 411 Central Avenue, Salinas, California, 93901, USA
| | - Graziella Rodondi
- Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria 26, 20133, Milan, Italy
| | - Jazmin J Hernandez-Kantun
- Botany Department, National Museum of Natural History, Smithsonian Institution, MRC 166 PO Box 37012, Washington District of Columbia, USA
| | - Annalisa Falace
- Dipartimento di Scienze della Vita, Università di Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
| | - Daniela Basso
- Dipartimento di Scienze dell'Ambiente e della Terra, Università degli Studi di Milano-Bicocca, Piazza della Scienza 4, 20126, Milan, Italy
- CoNISMa, ULR Milano-Bicocca, Milan, Italy
| | - Carlo Cerrano
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy
| | - Fabio Rindi
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131, Ancona, Italy
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Savva I, Bennett S, Roca G, Jordà G, Marbà N. Thermal tolerance of Mediterranean marine macrophytes: Vulnerability to global warming. Ecol Evol 2018; 8:12032-12043. [PMID: 30598797 PMCID: PMC6303755 DOI: 10.1002/ece3.4663] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 09/13/2018] [Accepted: 10/01/2018] [Indexed: 02/06/2023] Open
Abstract
The Mediterranean Sea is warming at three times the rate of the global ocean raising concerns about the vulnerability of marine organisms to climate change. Macrophytes play a key role in coastal ecosystems, therefore predicting how warming will affect these key species is critical to understand the effects of climate change on Mediterranean coastal ecosystems. We measured the physiological performance of six dominant native Mediterranean macrophytes under ten temperature treatments ranging from 12 to 34°C to examine their thermal niche, and vulnerability to projected warming in the western Mediterranean up until 2100. Among the macrophytes tested, Cymodocea nodosa was the species with the highest thermal optima and it was beyond current summer temperature. Therefore, C. nodosa may benefit from projected warming over the coming century. The optimal temperature for growth of the other species (Posidonia oceanica, Cystoseira compressa, Padina pavonica, Caulerpa prolifera, and Halimeda tuna) was lower. Similarly, the species presented different upper lethal limits, spanning at least across 5.1°C between 28.9°C (P. oceanica) and >34°C (C. nodosa). Our results demonstrate the variable physiological responses of species within the same local community to temperature changes and highlight important potential differences in climate change vulnerability, among species within coastal marine ecosystems.
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Affiliation(s)
- Ioannis Savva
- Global Change Research GroupInstitut Mediterrani d’Estudis Avançats (CSIC‐UIB)EsporlesSpain
- Marine and Environmental Research (MER) LabLimassolCyprus
| | - Scott Bennett
- Global Change Research GroupInstitut Mediterrani d’Estudis Avançats (CSIC‐UIB)EsporlesSpain
| | - Guillem Roca
- Global Change Research GroupInstitut Mediterrani d’Estudis Avançats (CSIC‐UIB)EsporlesSpain
| | - Gabriel Jordà
- Marine Ecosystem Dynamics GroupInstitut Mediterrani d’Estudis Avançats (CSIC‐UIB)EsporlesSpain
- Instituto Español de Oceanografía (IEO) Centre Oceanogràfic de BalearsPalmaSpain
| | - Núria Marbà
- Global Change Research GroupInstitut Mediterrani d’Estudis Avançats (CSIC‐UIB)EsporlesSpain
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Lagourgue L, Puillandre N, Payri CE. Exploring the Udoteaceae diversity (Bryopsidales, Chlorophyta) in the Caribbean region based on molecular and morphological data. Mol Phylogenet Evol 2018; 127:758-769. [DOI: 10.1016/j.ympev.2018.06.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 06/03/2018] [Accepted: 06/11/2018] [Indexed: 11/26/2022]
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Vieira C, Camacho O, Sun Z, Fredericq S, Leliaert F, Payri C, De Clerck O. Historical biogeography of the highly diverse brown seaweed Lobophora (Dictyotales, Phaeophyceae). Mol Phylogenet Evol 2017; 110:81-92. [PMID: 28279809 DOI: 10.1016/j.ympev.2017.03.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 02/22/2017] [Accepted: 03/04/2017] [Indexed: 11/23/2022]
Abstract
The tropical to warm-temperate marine brown macroalgal genus Lobophora (Dictyotales, Phaeophyceae) recently drew attention because of its striking regional diversity. In this study we reassess Lobophora global species diversity, and species distributions, and explore how historical factors have shaped current diversity patterns. We applied a series of algorithmic species delineation techniques on a global mitochondrial cox3 dataset of 598 specimens, resulting in an estimation of 98-121 species. This diversity by far exceeds traditional diversity estimates based on morphological data. A multi-locus time-calibrated species phylogeny using a relaxed molecular clock, along with DNA-confirmed species distribution data was used to analyse ancestral area distributions, dispersal-vicariance-founder events, and temporal patterns of diversification under different biogeographical models. The origin of Lobophora was estimated in the Upper Cretaceous (-75 to -60 MY), followed by gradual diversification until present. While most speciation events were inferred within marine realms, founder events also played a non-negligible role in Lobophora diversification. The Central Indo-Pacific showed the highest species diversity as a result of higher speciation events in this region. Most Lobophora species have small ranges limited to marine realms. Lobophora probably originated in the Tethys Sea and dispersed repeatedly in the Atlantic (including the Gulf of Mexico) and Pacific Oceans. The formation of the major historical marine barriers (Terminal Tethyan event, Isthmus of Panama, Benguela upwelling) did not act as important vicariance events. Long-distance dispersal presumably represented an important mode of speciation over evolutionary time-scales. The limited geographical ranges of most Lobophora species, however, vouch for the rarity of such events.
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Affiliation(s)
- Christophe Vieira
- ENTROPIE (IRD, UR, CNRS), LabEx-CORAIL, Institut de Recherche pour le Développement, B.P. A5, 98848 Nouméa Cedex, Nouvelle-Calédonie, France; Phycology Research Group and Center for Molecular Phylogenetics and Evolution, Ghent University, Gent B-9000, Belgium; Sorbonne Universités, UPMC Univ Paris 06, IFD, Paris F75252, France.
| | - Olga Camacho
- Department of Biology, University of Louisiana at Lafayette, Lafayette, LA 70504-3602, USA
| | - Zhongmin Sun
- Institute of Oceanology, Chinese Academy of Sciences, Department of Marine Organism Taxonomy and Phylogeny, China
| | - Suzanne Fredericq
- Department of Biology, University of Louisiana at Lafayette, Lafayette, LA 70504-3602, USA
| | - Frederik Leliaert
- Phycology Research Group and Center for Molecular Phylogenetics and Evolution, Ghent University, Gent B-9000, Belgium; Botanic Garden Meise, 1860 Meise, Belgium
| | - Claude Payri
- ENTROPIE (IRD, UR, CNRS), LabEx-CORAIL, Institut de Recherche pour le Développement, B.P. A5, 98848 Nouméa Cedex, Nouvelle-Calédonie, France
| | - Olivier De Clerck
- Phycology Research Group and Center for Molecular Phylogenetics and Evolution, Ghent University, Gent B-9000, Belgium
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Neiva J, Serrão EA, Anderson L, Raimondi PT, Martins N, Gouveia L, Paulino C, Coelho NC, Miller KA, Reed DC, Ladah LB, Pearson GA. Cryptic diversity, geographical endemism and allopolyploidy in NE Pacific seaweeds. BMC Evol Biol 2017; 17:30. [PMID: 28114901 PMCID: PMC5260064 DOI: 10.1186/s12862-017-0878-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 01/10/2017] [Indexed: 11/10/2022] Open
Abstract
Background Molecular markers are revealing a much more diverse and evolutionarily complex picture of marine biodiversity than previously anticipated. Cryptic and/or endemic marine species are continually being found throughout the world oceans, predominantly in inconspicuous tropical groups but also in larger, canopy-forming taxa from well studied temperate regions. Interspecific hybridization has also been found to be prevalent in many marine groups, for instance within dense congeneric assemblages, with introgressive gene-flow being the most common outcome. Here, using a congeneric phylogeographic approach, we investigated two monotypic and geographically complementary sister genera of north-east Pacific intertidal seaweeds (Hesperophycus and Pelvetiopsis), for which preliminary molecular tests revealed unexpected conflicts consistent with unrecognized cryptic diversity and hybridization. Results The three recovered mtDNA clades did not match a priori species delimitations. H. californicus was congruent, whereas widespread P. limitata encompassed two additional narrow-endemic species from California - P. arborescens (here genetically confirmed) and P. hybrida sp. nov. The congruence between the genotypic clusters and the mtDNA clades was absolute. Fixed heterozygosity was apparent in a high proportion of loci in P. limitata and P. hybrida, with genetic analyses showing that the latter was composed of both H. californicus and P. arborescens genomes. All four inferred species could be distinguished based on their general morphology. Conclusions This study confirmed additional diversity and reticulation within NE Pacific Hesperophycus/Pelvetiopsis, including the validity of the much endangered, modern climatic relict P. arborescens, and the identification of a new, stable allopolyploid species (P. hybrida) with clearly discernable ancestry (♀ H. californicus x ♂ P. arborescens), morphology, and geographical distribution. Allopolyploid speciation is otherwise completely unknown in brown seaweeds, and its unique occurrence within this genus (P. limitata possibly representing a second example) remains enigmatic. The taxonomic separation of Hesperophycus and Pelvetiopsis is not supported and the genera should be synonymized; we retain only the latter. The transitional coastline between Point Conception and Monterey Bay represented a diversity hotspot for the genus and the likely sites of extraordinary evolutionary events of allopolyploid speciation at sympatric range contact zones. This study pinpoints how much diversity (and evolutionary processes) potentially remains undiscovered even on a conspicuous seaweed genus from the well-studied Californian intertidal shores let alone in other, less studied marine groups and regions/depths. Electronic supplementary material The online version of this article (doi:10.1186/s12862-017-0878-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- João Neiva
- CCMAR- Centro de Ciências do Mar da Universidade do Algarve, Edifício 7, Gambelas, 8005-139, Faro, Portugal.
| | - Ester A Serrão
- CCMAR- Centro de Ciências do Mar da Universidade do Algarve, Edifício 7, Gambelas, 8005-139, Faro, Portugal
| | - Laura Anderson
- Long Marine Laboratory, University of California, Santa Cruz, USA
| | - Peter T Raimondi
- Long Marine Laboratory, University of California, Santa Cruz, USA
| | - Neusa Martins
- CCMAR- Centro de Ciências do Mar da Universidade do Algarve, Edifício 7, Gambelas, 8005-139, Faro, Portugal
| | - Licínia Gouveia
- CCMAR- Centro de Ciências do Mar da Universidade do Algarve, Edifício 7, Gambelas, 8005-139, Faro, Portugal
| | - Cristina Paulino
- CCMAR- Centro de Ciências do Mar da Universidade do Algarve, Edifício 7, Gambelas, 8005-139, Faro, Portugal
| | - Nelson C Coelho
- CCMAR- Centro de Ciências do Mar da Universidade do Algarve, Edifício 7, Gambelas, 8005-139, Faro, Portugal
| | | | - Daniel C Reed
- Marine Science Institute, University of California, Santa Barbara, USA
| | - Lydia B Ladah
- CICESE - Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, Mexico
| | - Gareth A Pearson
- CCMAR- Centro de Ciências do Mar da Universidade do Algarve, Edifício 7, Gambelas, 8005-139, Faro, Portugal
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Vieira C, D'hondt S, De Clerck O, Payri CE. Toward an inordinate fondness for stars, beetles and Lobophora? Species diversity of the genus Lobophora (Dictyotales, Phaeophyceae) in New Caledonia. JOURNAL OF PHYCOLOGY 2014; 50:1101-1119. [PMID: 26988791 DOI: 10.1111/jpy.12243] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 07/27/2014] [Indexed: 06/05/2023]
Abstract
Until the recent use of molecular markers, species diversity of Lobophora, an ecologically important brown algal genus with a worldwide distribution in temperate and tropical seas, has been critically underestimated. Using a DNA-based taxonomic approach, we re-examined diversity of the genus from New Caledonia in the Southwest Pacific Ocean. First, species were delineated using general mixed Yule coalescent-based and barcoding gap approaches applied to a mitochondrial cox3 data set. Results were subsequently confirmed using chloroplast psbA and rbcL data sets. Species delimitation analyses agreed well across markers and delimitation algorithms, with the barcoding gap approach being slightly more conservative. Analyses of the cox3 data set resulted in 31-39 molecular operational taxonomic units (MOTUs), four of which are previously described species (L. asiatica, L. crassa, L. nigrescens s.l., L. pachyventera). Of the remaining MOTUs for which we obtained a representative number of sequences and results are corroborated across analyses and genes, we described 10 species de novo: L. abaculusa, L. abscondita, L. densa, L. dimorpha, L. gibbera, L. hederacea, L. monticola, L. petila, L. rosacea, and L. undulata. Our study presents an excellent case of how a traditional morphology-based taxonomy fails to provide accurate estimates of algal diversity. Furthermore, the level of Lobophora diversity unveiled from a single locality in the Pacific Ocean raises important questions with respect to the global diversity of the genus, the distributions and range sizes of the individual species, as well as the mechanisms facilitating coexistence.
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Affiliation(s)
- Christophe Vieira
- CoRéUs, LabEx-CORAIL, U227 "Biocomplexité des écosystèmes coralliens", Institut de Recherche pour le Développement, B.P. A5, 98848 Nouméa Cedex, Nouvelle-Calédonie, France
- Sorbonne Universités, UPMC Univ Paris 06, IFD, 4 Place Jussieu, 75252, Paris Cedex 05, France
- Phycology Research Group and Center for Molecular Phylogenetics and Evolution, Ghent University, Krijgslaan 281 (S8), Ghent, B-9000, Belgium
| | - Sofie D'hondt
- Phycology Research Group and Center for Molecular Phylogenetics and Evolution, Ghent University, Krijgslaan 281 (S8), Ghent, B-9000, Belgium
| | - Olivier De Clerck
- Phycology Research Group and Center for Molecular Phylogenetics and Evolution, Ghent University, Krijgslaan 281 (S8), Ghent, B-9000, Belgium
| | - Claude E Payri
- CoRéUs, LabEx-CORAIL, U227 "Biocomplexité des écosystèmes coralliens", Institut de Recherche pour le Développement, B.P. A5, 98848 Nouméa Cedex, Nouvelle-Calédonie, France
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Gil-Díaz T, Haroun R, Tuya F, Betancor S, Viera-Rodríguez MA. Effects of ocean acidification on the brown alga Padina pavonica: decalcification due to acute and chronic events. PLoS One 2014; 9:e108630. [PMID: 25268231 PMCID: PMC4182500 DOI: 10.1371/journal.pone.0108630] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 09/02/2014] [Indexed: 11/18/2022] Open
Abstract
Since the industrial revolution, anthropogenic CO₂ emissions have caused ocean acidification, which particularly affects calcified organisms. Given the fan-like calcified fronds of the brown alga Padina pavonica, we evaluated the acute (short-term) effects of a sudden pH drop due to a submarine volcanic eruption (October 2011-early March 2012) affecting offshore waters around El Hierro Island (Canary Islands, Spain). We further studied the chronic (long-term) effects of the continuous decrease in pH in the last decades around the Canarian waters. In both the observational and retrospective studies (using herbarium collections of P. pavonica thalli from the overall Canarian Archipelago), the percent of surface calcium carbonate coverage of P. pavonica thalli were contrasted with oceanographic data collected either in situ (volcanic eruption event) or from the ESTOC marine observatory data series (herbarium study). Results showed that this calcified alga is sensitive to acute and chronic environmental pH changes. In both cases, pH changes predicted surface thallus calcification, including a progressive decalcification over the last three decades. This result concurs with previous studies where calcareous organisms decalcify under more acidic conditions. Hence, Padina pavonica can be implemented as a bio-indicator of ocean acidification (at short and long time scales) for monitoring purposes over wide geographic ranges, as this macroalga is affected and thrives (unlike strict calcifiers) under more acidic conditions.
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Affiliation(s)
- Teba Gil-Díaz
- Centro de Biodiversidad y Gestión Ambiental, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Ricardo Haroun
- Centro de Biodiversidad y Gestión Ambiental, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Fernando Tuya
- Centro de Biodiversidad y Gestión Ambiental, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Séfora Betancor
- Centro de Biodiversidad y Gestión Ambiental, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - María A. Viera-Rodríguez
- Centro de Biodiversidad y Gestión Ambiental, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
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Belton GS, van Reine WFP, Huisman JM, Draisma SGA, D Gurgel CF. Resolving phenotypic plasticity and species designation in the morphologically challenging Caulerpa racemosa-peltata complex (Chlorophyta, Caulerpaceae). JOURNAL OF PHYCOLOGY 2014; 50:32-54. [PMID: 26988007 DOI: 10.1111/jpy.12132] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Accepted: 09/07/2013] [Indexed: 06/05/2023]
Abstract
Although recent molecular studies have indicated the presence of a number of distinct species within the Caulerpa racemosa-peltata complex, due to the difficulties presented by high levels of phenotypic plasticity and the large number of synonyms, infra-specific taxa, and names of uncertain affinity, taxonomic proposals are yet to be made. In this study, we aimed to resolve the taxonomy of the complex and provide an example of how historical nomenclature can best be integrated into molecular based taxonomies. We accomplished this by first determining the number of genetic species within our globally sampled data set through a combination of phylogenetic and species-delimitation approaches of partial elongation factor TU and RUBISCO large subunit gene sequences. Guided by these results, comparative morphological examinations were then undertaken to gauge the extent of phenotypic plasticity within each species, as well as any morphological overlap between them. Our results revealed the presence of 11 distinct species within the complex, five of which showed high levels of phenotypic plasticity and partial overlap with other species. On the basis of observations of a large number of specimens, including type specimens/descriptions, and geographic inferences, we were able to confidently designate names for the lineages. Caulerpa peltata, C. imbricata and C. racemosa vars. laetevirens, occidentalis and turbinata were found to represent environmentally induced forms of a single species, for which the earlier-described C. chemnitzia, previously regarded as a synonym of C. racemosa var. turbinata, is reinstated. C. cylindracea, C. lamourouxii, C. macrodisca, C. nummularia and C. oligophylla are also reinstated and two new species, C. macra stat. nov. and C. megadisca sp. nov., are proposed.
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Affiliation(s)
- Gareth S Belton
- School of Earth and Environmental Sciences, The University of Adelaide, North Terrace, Adelaide, South Australia, 5005, Australia
| | | | - John M Huisman
- School of Veterinary and Life Sciences, Murdoch University, Murdoch, Western Australia, 6150, Australia
- Western Australian Herbarium, Science Division, Department of Parks and Wildlife, Bentley Delivery Centre, Locked Bag 104, Bentley, Western Australia, 6983, Australia
| | - Stefano G A Draisma
- Institute of Ocean & Earth Sciences, University of Malaya, Kuala Lumpur, 50603, Malaysia
| | - Carlos Frederico D Gurgel
- School of Earth and Environmental Sciences, The University of Adelaide, North Terrace, Adelaide, South Australia, 5005, Australia
- Department of Environment, Water & Natural Resources, South Australian State Herbarium, GPO Box 1047, Adelaide, South Australia, 5001, Australia
- Aquatic Sciences, South Australian Research and Development Institute, P.O. Box 120, Henley Beach, South Australia, 5022, Australia
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Ceccarelli DM, McKinnon AD, Andréfouët S, Allain V, Young J, Gledhill DC, Flynn A, Bax NJ, Beaman R, Borsa P, Brinkman R, Bustamante RH, Campbell R, Cappo M, Cravatte S, D'Agata S, Dichmont CM, Dunstan PK, Dupouy C, Edgar G, Farman R, Furnas M, Garrigue C, Hutton T, Kulbicki M, Letourneur Y, Lindsay D, Menkes C, Mouillot D, Parravicini V, Payri C, Pelletier B, Richer de Forges B, Ridgway K, Rodier M, Samadi S, Schoeman D, Skewes T, Swearer S, Vigliola L, Wantiez L, Williams A, Williams A, Richardson AJ. The coral sea: physical environment, ecosystem status and biodiversity assets. ADVANCES IN MARINE BIOLOGY 2013; 66:213-290. [PMID: 24182902 DOI: 10.1016/b978-0-12-408096-6.00004-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The Coral Sea, located at the southwestern rim of the Pacific Ocean, is the only tropical marginal sea where human impacts remain relatively minor. Patterns and processes identified within the region have global relevance as a baseline for understanding impacts in more disturbed tropical locations. Despite 70 years of documented research, the Coral Sea has been relatively neglected, with a slower rate of increase in publications over the past 20 years than total marine research globally. We review current knowledge of the Coral Sea to provide an overview of regional geology, oceanography, ecology and fisheries. Interactions between physical features and biological assemblages influence ecological processes and the direction and strength of connectivity among Coral Sea ecosystems. To inform management effectively, we will need to fill some major knowledge gaps, including geographic gaps in sampling and a lack of integration of research themes, which hinder the understanding of most ecosystem processes.
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