GLORIA

GEOMAR Library Ocean Research Information Access

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Publication Date: 2022-06-28
    Description: Las señales climáticas preservadas en las bandas de crecimiento del esqueleto de corales masivos ofrecen una perspectiva a largo plazo que permite comprender los cambios de la temperatura superficial del mar a diferentes escalas de tiempo. En el área del mar Caribe y el Golfo de México, especies de corales como Orbicella faveolata, en aguas someras, presentan formas de crecimiento masivo que facilitan el fechado de su esqueleto, lo que ha permitido la realización de estudios paleoambientales en zonas costeras donde los registros instrumentales son escasos y abarcan cortos periodos de tiempo. El propósito de este estudio fue caracterizar los registros geoquímicos en el esqueleto de un coral herma- típico O. faveolata, recolectado en el arrecife de Cayo Santa María, Cuba, y reconstruir la temperatura superficial del mar (TSM), con resolución anual, para los dos últimos siglos. Se obtuvieron registros de 230 años de Li/Ca, Sr/Ca, Mg/Ca, U/Ca, Li/Mg y Sr-U. De los indicadores geoquímicos analizados, el Li/Ca permitió la reconstrucción de la TSM para el área de estudio e indicó un incremento de 0.77 °C en los últimos 50 años. Ade- más, Li/Ca corroboró con buena exactitud los periodos característicos de calentamiento y enfriamiento reportados para el mar Caribe y el Golfo de México desde 1778. Orbicella faveolata demostró contener un buen registro multidecadal de la temperatura anual y de la Variabilidad Multidecadal Atlántica. Los resultados son la primera reconstrucción a largo plazo de la TSM en la zona costera de Cuba y brindan información relevante para comprender el calentamiento global en la región.
    Description: Climatic signals preserved in the skeletal growth bands of massive corals offer a long-term perspective that allows understanding sea surface temperature changes at different time scales. In the Caribbean Sea and the Gulf of Mexico, coral species such as Orbicella faveolata present massive growth forms in shallow waters that facilitate dating of their skeleton, allowing to perform paleoenvironmental studies in coastal areas where instrumental records are scarce and cover short time periods. This study aimed to characterize coral geochem- ical records in the skeleton of a hermatypic coral O. faveolata collected in the Cayo Santa María (Cuba) reef and to reconstruct seawater surface annual temperatures for the last two centuries. Records of 230 years for Li/Ca, Sr/Ca, Mg/Ca, U/ Ca, Li/Mg, and Sr-U were obtained. The Li/Ca indicator al- lowed the reconstruction of SST in the study area from 1778 to 2015, indicating an overall increase of 0.77 °C in the last 50 years. In addition, Li/Ca corroborated with high accuracy the characteristic warming and cooling periods reported for the Caribbean Sea and the Gulf of Mexico since 1778. Orbicella faveolata proved to contain a good multidecadal record of annual temperature and of the Atlantic Multidecadal Variability. These results are the first long-term reconstruction of SST in the Cuban coastal zone and provide relevant information to understand global warming in the Caribbean.
    Description: Published
    Description: Refereed
    Keywords: Orbicella faveolata ; Temperatura superficial del mar ; Li/Ca ; Reconstrucción paleoclimática ; Seawater temperature ; Li/ Ca proxy ; Climate archives ; Paleoclimate reconstruction
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.37-53
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 2
    Publication Date: 2022-05-26
    Description: © The Author(s), 2019. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Planes, S., Allemand, D., Agostini, S., Banaigs, B., Boissin, E., Boss, E., Bourdin, G., Bowler, C., Douville, E., Flores, J. M., Forcioli, D., Furla, P., Galand, P. E., Ghiglione, J. F., Gilson, E., Lombard, F., Moulin, C., Pesant, S., Poulain, J., Reynaud, S., Romac, S., Sullivan, M. B., Sunagawa, S., Thomas, O. P., Trouble, R., de Vargas, C., Thurber, R. V., Voolstra, C. R., Wincker, P., Zoccola, D., the Tara Pacific Consortium. The Tara Pacific expedition-A pan-ecosystemic approach of the "-omics" complexity of coral reef holobionts across the Pacific Ocean. Plos Biology, 17(9),(2019): e3000483, doi: 10.1371/journal.pbio.3000483.
    Description: Coral reefs are the most diverse habitats in the marine realm. Their productivity, structural complexity, and biodiversity critically depend on ecosystem services provided by corals that are threatened because of climate change effects—in particular, ocean warming and acidification. The coral holobiont is composed of the coral animal host, endosymbiotic dinoflagellates, associated viruses, bacteria, and other microeukaryotes. In particular, the mandatory photosymbiosis with microalgae of the family Symbiodiniaceae and its consequences on the evolution, physiology, and stress resilience of the coral holobiont have yet to be fully elucidated. The functioning of the holobiont as a whole is largely unknown, although bacteria and viruses are presumed to play roles in metabolic interactions, immunity, and stress tolerance. In the context of climate change and anthropogenic threats on coral reef ecosystems, the Tara Pacific project aims to provide a baseline of the “-omics” complexity of the coral holobiont and its ecosystem across the Pacific Ocean and for various oceanographically distinct defined areas. Inspired by the previous Tara Oceans expeditions, the Tara Pacific expedition (2016–2018) has applied a pan-ecosystemic approach on coral reefs throughout the Pacific Ocean, drawing an east–west transect from Panama to Papua New Guinea and a south–north transect from Australia to Japan, sampling corals throughout 32 island systems with local replicates. Tara Pacific has developed and applied state-of-the-art technologies in very-high-throughput genetic sequencing and molecular analysis to reveal the entire microbial and chemical diversity as well as functional traits associated with coral holobionts, together with various measures on environmental forcing. This ambitious project aims at revealing a massive amount of novel biodiversity, shedding light on the complex links between genomes, transcriptomes, metabolomes, organisms, and ecosystem functions in coral reefs and providing a reference of the biological state of modern coral reefs in the Anthropocene.
    Description: We are keen to thank the commitment of the people and the following institutions for their financial and scientific support that made this singular expedition possible: CNRS, PSL, CSM, EPHE, Genoscope/CEA, Inserm, Université Cote d’Azur, ANR, agnès b., UNESCO-IOC, the Veolia Environment Foundation, Région Bretagne, Serge Ferrari, Billerudkorsnas, Amerisource Bergen Company, Lorient Agglomeration, Oceans by Disney, the Prince Albert II de Monaco Foundation, L’Oréal, Biotherm, France Collectivités, Kankyo Station, Fonds Français pour l’Environnement Mondial (FFEM), Etienne BOURGOIS, and the Tara Ocean Foundation teams and crew. Tara Pacific would not exist without the continuous support of the participating institutes. This study has been conducted using E.U. Copernicus Marine Service Information and Mercator Ocean products. We acknowledged funding from the Investissement d’avenir projects France Génomique (ANR-10-INBS-09) and OCEANOMICS (ANR-11-BTBR-0008). RVT was funded by a Dimensions of Biodiversity NSF grant (#1442306) for this work. SS is supported by the ETH Zurich and Helmut Horten Foundation. FL is supported by Sorbonne Université, Institut Universitaire de France, and the Fondation CA-PCA. Finally, we thank the ANR for funding the project CORALGENE, which will support the work the Tara Pacific program. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
    Repository Name: Woods Hole Open Access Server
    Type: Article
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 3
    Publication Date: 2022-10-26
    Description: © The Author(s), 2019. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Gorsky, G., Bourdin, G., Lombard, F., Pedrotti, M. L., Audrain, S., Bin, N., Boss, E., Bowler, C., Cassar, N., Caudan, L., Chabot, G., Cohen, N. R., Cron, D., De Vargas, C., Dolan, J. R., Douville, E., Elineau, A., Flores, J. M., Ghiglione, J. F., Haentjens, N., Hertau, M., John, S. G., Kelly, R. L., Koren, I., Lin, Y., Marie, D., Moulin, C., Moucherie, Y., Pesant, S., Picheral, M., Poulain, J., Pujo-Pay, M., Reverdin, G., Romac, S., Sullivan, M. B., Trainic, M., Tressol, M., Trouble, R., Vardi, A., Voolstra, C. R., Wincker, P., Agostini, S., Banaigs, B., Boissin, E., Forcioli, D., Furla, P., Galand, P. E., Gilson, E., Reynaud, S., Sunagawa, S., Thomas, O. P., Thurber, R. L. V., Zoccola, D., Planes, S., Allemand, D., Karsenti, E. Expanding Tara oceans protocols for underway, ecosystemic sampling of the ocean-atmosphere interface during Tara Pacific expedition (2016-2018). Frontiers in Marine Science, 6, (2019): 750, doi: 10.3389/fmars.2019.00750.
    Description: Interactions between the ocean and the atmosphere occur at the air-sea interface through the transfer of momentum, heat, gases and particulate matter, and through the impact of the upper-ocean biology on the composition and radiative properties of this boundary layer. The Tara Pacific expedition, launched in May 2016 aboard the schooner Tara, was a 29-month exploration with the dual goals to study the ecology of reef ecosystems along ecological gradients in the Pacific Ocean and to assess inter-island and open ocean surface plankton and neuston community structures. In addition, key atmospheric properties were measured to study links between the two boundary layer properties. A major challenge for the open ocean sampling was the lack of ship-time available for work at “stations”. The time constraint led us to develop new underway sampling approaches to optimize physical, chemical, optical, and genomic methods to capture the entire community structure of the surface layers, from viruses to metazoans in their oceanographic and atmospheric physicochemical context. An international scientific consortium was put together to analyze the samples, generate data, and develop datasets in coherence with the existing Tara Oceans database. Beyond adapting the extensive Tara Oceans sampling protocols for high-resolution underway sampling, the key novelties compared to Tara Oceans’ global assessment of plankton include the measurement of (i) surface plankton and neuston biogeography and functional diversity; (ii) bioactive trace metals distribution at the ocean surface and metal-dependent ecosystem structures; (iii) marine aerosols, including biological entities; (iv) geography, nature and colonization of microplastic; and (v) high-resolution underway assessment of net community production via equilibrator inlet mass spectrometry. We are committed to share the data collected during this expedition, making it an important resource important resource to address a variety of scientific questions.
    Description: We are thankful for the commitment of the people and the following institutions, for their financial and scientific support that made this singular expedition possible: CNRS, PSL, CSM, EPHE, Genoscope/CEA, Inserm, Université Cote d’Azur, ANR, the Tara Ocean Foundation and its partners agnès b., UNESCO-IOC, the Veolia Environment Foundation, Région Bretagne, Serge Ferrari, Billerudkorsnas, Amerisource Bergen Company, Altran, Lorient Agglomeration, Oceans by Disney, the Prince Albert II de Monaco Foundation, L’Oréal, Biotherm, France Collectivités, Kankyo Station, Fonds Français pour l’Environnement Mondial (FFEM), Etienne Bourgois, the Tara Ocean Foundation teams and crew. Tara Pacific would not exist without the continuous support of the participating institutes. This study has been conducted using E.U. Copernicus Marine Service Information and Mercator Ocean products. We acknowledge funding from the Investissement d’avenir project France Génomique (ANR-10-INBS-09). FL is supported by Sorbonne Université, Institut Universitaire de France and the Fondation CA-PCA. The in-line and atmospheric optics dataset was collected and analyzed with support from NASA Ocean Biology and Biogeochemistry program under grants NNX13AE58G and NNX15AC08G to University of Maine. MF, IK, and AV are supported by a research grant from Scott Jordan and Gina Valdez, the De Botton for Marine Science, the Yeda-Sela center for Basic research, and the Sustainability and Energy Research Initiative (SAERI). NCo was supported by a grant from the Simons Foundation/SFARI (544236). NCa and YL were supported by the “Laboratoire d’Excellence” LabexMER (ANR-10-LABX-19) and co-funded by a grant from the French government under the program “Investissements d’Avenir.” The support of Pr. Alan Fuchs, President of CNRS, was crucial for the success of the surface sampling undertaken during the Tara Pacific expedition. We thank A. Gavilli from TECA Inc. France, and E. Tanguy and D. Delhommeau from the Institut de la Mer, Villefranche-sur-Mer for the helpful collaboration in the conception of the High Speed Net and the Dolphin systems. This publication is number 2 of the Tara Pacific Consortium.
    Keywords: Neuston/plankton genomics/taxonomy/imaging ; Aerosols ; NCP ; IOP ; Trace metals ; Microplastic
    Repository Name: Woods Hole Open Access Server
    Type: Article
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 4
    Publication Date: 2022-05-27
    Description: Author Posting. © American Geophysical Union, 2021. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Paleoceanography and Paleoclimatology, 36(4), (2021): e2020PA004153, https://doi.org/10.1029/2020PA004153.
    Description: Variations in Mediterranean thermohaline circulation of the Quaternary are still not well constrained whereas they have been considered to have an influence on the Atlantic Meridional Overturning Circulation and on the oxygenation of waters in the deep basins of the Mediterranean Sea. εNd analyses have been carried out on planktonic foraminifera of cores collected in the central Mediterranean Sea to constrain water mass exchange between the Eastern and Western Mediterranean Sea (EMS and WMS) during the last climatic cycle. εNd records from the WMS and EMS display similar higher values during warm substages of interglacial Marine Isotopic Stage (MIS) 1 and 5. This suggests an efficient connection between the two Mediterranean sub-basins and the transfer of radiogenic waters to the Tyrrhenian Sea via the Levantine Intermediate Water (LIW). Conversely, during glacial MIS, εNd of the intermediate depth of the Tyrrhenian Sea are less radiogenic than the EMS, implying limited hydrological connection between sub-basins during low sea-level stands. Superimposed on these glacial-interglacial variations, increased εNd occurred during Heinrich Stadial events. This suggests a reduction in the formation of unradiogenic WIW in the Gulf of Lions due to the input of relatively fresh surface Atlantic water to the WMS and/or the inflow of radiogenic glacial LIW and upper EMDW to the Tyrrhenian Sea as a result of an active EMS convection related to saltier and colder conditions. Such potential millennial-scale pulses of LIW intrusion into the Tyrrhenian Sea may have led to an enhanced Mediterranean Outflow Water intensity in the Gibraltar Strait.
    Description: The research leading to this paper was funded by the French National Research Agency under the “Investissements d'avenir” program (Grant ANR-11-IDEX-0004-17-EURE-0006), the MEDSENS Project (Grant ANR-19-CE01-0019) and the INSU LEFE-IMAGO PALMEDS Project. The authors gratefully acknowledge the support provided by Louise Bordier during Nd isotopic composition analyses.
    Description: 2021-08-15
    Keywords: Central Mediterranean Sea ; foraminifera ; last climatic cycle ; Neodymium isotopic composition ; paleo-hydrology ; sapropels
    Repository Name: Woods Hole Open Access Server
    Type: Article
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...