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  • PANGAEA  (26)
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  • 1
    Publication Date: 2024-03-14
    Keywords: Adriatic Sea; Aegean Sea; Alboran Sea; CTD; CTD, Seabird; CTD/Rosette; CTD-R; CTD-RO; Date/Time of event; DEPTH, water; Eastern Basin; Elevation of event; Event label; Ionian Sea; Latitude of event; Longitude of event; M287; M288; M289; M290; M291; M292; M293; M294; M295; M296; M297; M298; M299; M300; M301; M302; M303; M304; M305; M306; M307; M308; M309; M310; M311; M312; M313; M314; M315; M316; M317; M318; M319; M320; M321; M322; M323; M324; M325; M326; M327; M328; M329; M330; M331; M332; M333; M334; M335; M336; M337; M338; M339; M340; M341; M342; M343; M344; M345; M346; M347; M348; M84/3; M84/3_287; M84/3_288; M84/3_289; M84/3_290; M84/3_291; M84/3_292; M84/3_293; M84/3_294; M84/3_295; M84/3_296; M84/3_297; M84/3_298; M84/3_299; M84/3_300; M84/3_301; M84/3_302; M84/3_303; M84/3_304; M84/3_305; M84/3_306; M84/3_307; M84/3_308; M84/3_309; M84/3_310; M84/3_311; M84/3_312; M84/3_313; M84/3_314; M84/3_315; M84/3_316; M84/3_317; M84/3_318; M84/3_319; M84/3_320; M84/3_321; M84/3_322; M84/3_323; M84/3_324; M84/3_325; M84/3_326; M84/3_327; M84/3_328; M84/3_329; M84/3_330; M84/3_331; M84/3_332; M84/3_333; M84/3_334; M84/3_335; M84/3_336; M84/3_337; M84/3_338; M84/3_339; M84/3_340; M84/3_341; M84/3_342; M84/3_343; M84/3_344; M84/3_345; M84/3_346; M84/3_347; M84/3_348; Meteor (1986); Oxygen; Pressure, water; Salinity; South Atlantic Ocean; Strait of Gibraltar; Temperature, water; Tirreno Sea; Western Basin
    Type: Dataset
    Format: text/tab-separated-values, 524455 data points
    Location Call Number Limitation Availability
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  • 2
    Publication Date: 2024-03-14
    Keywords: Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS); Hydrogen/Carbon ratio; Mass of molecular formulas; Molecular formula; Oxygen/Carbon ratio; Peak intensity
    Type: Dataset
    Format: text/tab-separated-values, 143906 data points
    Location Call Number Limitation Availability
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  • 3
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    PANGAEA
    In:  Supplement to: Romera-Castillo, Cristina; Álvarez, Marta; Pelegrí, Josep L; Hansell, Dennis A; Alvarez-Salgado, Xose Anton (2019): Net Additions of Recalcitrant Dissolved Organic Carbon in the Deep Atlantic Ocean. Global Biogeochemical Cycles, 33(9), 1162-1173, https://doi.org/10.1029/2018GB006162
    Publication Date: 2024-03-14
    Description: Optimum Multiparameter Model in Matlab code to solve the mixing of water masses in the North and South Atlantic ocean based on GOSHIP cruises with available Dissolved Organic Carbon (DOC) data. Data below 250 dbar and colder than 14ºC are considered. The scripts solve the mixing of central, intermediate, deep and bottom waters crossed by the GOSHIP lines (A22-2012, A20-2012, A13.5-2010, A16N-2013, A16S-2013). INPUT variables are the comprised within a matlab file (OMP_ATL_DOM.mat) containing hydrographic and biogeochemical data as provided in the OCADS repository for Repeat Hydrography. The OUTPUT is generated in the file OMP_RESULTS.xlsx containing self explaining names of the output variables. A detailed explanation of the OMP settings, constraints and results to analyse and check is given in the linked Global Biogeochemical Cycles manuscript. To inititate the OMP analysis just run "Megaprograma.m", the analysis will start and when ending the results will appear in the xlsx file.
    Keywords: apparent ages; Atlantic Ocean; Dissolved Organic Carbon; water masses
    Type: Dataset
    Format: application/zip, 5.1 MBytes
    Location Call Number Limitation Availability
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  • 4
    Publication Date: 2024-03-14
    Keywords: DEPTH, water; LATITUDE; LONGITUDE; Sample ID
    Type: Dataset
    Format: text/tab-separated-values, 35 data points
    Location Call Number Limitation Availability
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  • 5
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    PANGAEA
    In:  Supplement to: Oviedo, Angela Maria; Ziveri, Patrizia; Álvarez, Marta; Tanhua, Toste (2015): Is coccolithophore distribution in the Mediterranean Sea related to seawater carbonate chemistry? Ocean Science, 11(1), 13-32, https://doi.org/10.5194/os-11-13-2015
    Publication Date: 2024-03-14
    Description: The Mediterranean Sea is considered a "hot spot" for climate change, being characterized by oligotrophic to ultra-oligotrophic waters and rapidly increasing seasurface temperature and changing carbonate chemistry. Coccolithophores are considered a dominant phytoplankton group in these waters. As marine calcifying organisms they are expected to respond to the ongoing changes in seawater carbonate chemistry. We provide here a description of the springtime coccolithophore distribution in the Mediterranean Sea and relate this to a broad set of in situ-measured environmental variables. Samples were taken during the R/V Meteor (M84/3) oceanographic cruise in April 2011, between 0 and 100 m water depth from 28 stations. Total diatom and silicoflagellate cell concentrations are also presented. Our results highlight the importance of seawater carbonate chemistry, especially [CO3]2- but also [PO4]3- in unraveling the distribution of heterococcolithophores, the most abundant coccolithophore life phase. Holo- and heterococcolithophores respond differently to environmental factors. For instance, changes in heterococcolithophore assemblages were best linked to the combination of [CO3]2-, pH, and salinity (rho = 0.57), although salinity might be not functionally related to coccolithophore assemblage distribution. Holococcolithophores, on the other hand, showed higher abundances and species diversity in oligotrophic areas (best fit, rho = 0.32 for nutrients), thriving in nutrient-depleted waters. Clustering of heterococcolithophores revealed three groups of species sharing more than 65% similarities. These clusters could be assigned to the eastern and western basins and deeper layers (below 50 m), respectively. In addition, the species Gephyrocapsa oceanica, G. muellerae, and Emiliania huxleyi morphotype B/C are spatially distributed together and trace the influx of Atlantic waters into the Mediterranean Sea. The results of the present work emphasize the importance of considering holo- and heterococcolithophores separately when analyzing changes in species assemblages and diversity. Our findings suggest that coccolithophores are a main phytoplankton group in the entire Mediterranean Sea and can dominate over siliceous phytoplankton. They have life stages that are expected to respond differently to the variability in seawater carbonate chemistry and nutrient concentrations.
    Keywords: Acanthoica biscayensis; Acanthoica quattrospina; Adriatic Sea; Aegean Sea; Alboran Sea; Algirosphaera cucullata; Algirosphaera robusta; Alisphaera capulata; Alisphaera extenta; Alisphaera gaudii; Alisphaera ordinata; Alisphaera unicornis; Anacanthoica acanthos; Anoplosolenia brasiliensis; Anthosphaera lafourcadii; Anthosphaera origami; Anthosphaera periperforata; Anthosphaera sp.; Calcidiscus leptoporus; Calcidiscus leptoporus ssp. leptoporus; Calcidiscus leptoporus ssp. quadriperforatus; Calciopappus caudatus; Calciopappus rigidus; Calciosolenia murrayi; Calicasphaera concava; Calyptrolithina divergens; Calyptrolithina multipora; Calyptrosphaera cialdii; Calyptrosphaera dentata; Calyptrosphaera heimdalae; Calyptrosphaera sp.; Calyptrosphaera sphaeroidea; Cells, total; Ceratolithus cristatus; Coccolithophores; Coccolithophoridae sp.; Coccolithus pelagicus ssp. braarudii; Confidence; Corisphaera gracilis; Corisphaera sp.; Corisphaera strigilis; Corisphaera tyrrheniensis; Coronosphaera binodata; Coronosphaera mediterranea; CTD/Rosette; CTD-RO; Cyrtosphaera lecaliae; DATE/TIME; DEPTH, water; Diatoms; Dictyota sp.; Dinoflagellates; Discosphaera tubifera; Diversity; Eastern Basin; Elevation of event; Emiliania huxleyi; Ericiolus spp.; Event label; Florisphaera profunda; Gephyrocapsa ericsonii; Gephyrocapsa muellerae; Gephyrocapsa oceanica; Gephyrocapsa ornata; Gladiolithus flabellatus; Gliscolithus amitakarenae; Hayaster perplexus; Helicosphaera carteri; Helicosphaera pavimentum; Helladosphaera cornifera; Heterococcolithophores; Holococcolithophora; Homozygosphaera spinosa; Homozygosphaera triarcha; Homozygosphaera vercelli; Ionian Sea; Kataspinifera baumannii; Latitude of event; Longitude of event; M287; M288; M291; M292; M293; M294; M296; M297; M298; M299; M302; M305; M306; M307; M308; M309; M313; M316; M319; M320; M321; M324; M329; M331; M332; M334; M337; M338; M84/3; M84/3_287; M84/3_288; M84/3_291; M84/3_292; M84/3_293; M84/3_294; M84/3_296; M84/3_297; M84/3_298; M84/3_299; M84/3_302; M84/3_305; M84/3_306; M84/3_307; M84/3_308; M84/3_309; M84/3_313; M84/3_316; M84/3_319; M84/3_320; M84/3_321; M84/3_324; M84/3_329; M84/3_331; M84/3_332; M84/3_334; M84/3_337; M84/3_338; Mediterranean Sea Acidification in a Changing Climate; MedSeA; Meringosphaera mediterranea; Meteor (1986); Michaelsaria elegans; Number of species; Ophiaster formosus; Ophiaster hydroideus; Palusphaera vandelii; Papposphaera lepida; Papposphaera sp.; Phytoplankton; Pleurochrysis carterae; Polycrater galapagensis; Polycrater spp.; Pontosphaera japonica; Poricalyptra gaarderae; Poritectolithus maximus; Pressure, water; Reticulofenestra parvula; Rhabdosphaera clavigera var. clavigera; Rhabdosphaera xiphos; Scyphosphaera apsteinii; Sphaerocalyptra adenensis; Sphaerocalyptra quadridentata; Sphaerocalyptra sp.; Strait of Gibraltar; Syracolithus sp.; Syracosphaera ampliora; Syracosphaera anthos; Syracosphaera arethusae; Syracosphaera bannockii; Syracosphaera borealis; Syracosphaera corolla; Syracosphaera delicata; Syracosphaera dilatata; Syracosphaera histrica; Syracosphaera lamina; Syracosphaera marginiporata; Syracosphaera molischii; Syracosphaera nana; Syracosphaera nodosa; Syracosphaera noroitica; Syracosphaera ossa; Syracosphaera pirus; Syracosphaera prolongata; Syracosphaera protrudens; Syracosphaera pulchra; Syracosphaera rotula; Syracosphaera sp.; Syracosphaera spp.; Syracosphaera tumularis; Tirreno Sea; Umbellosphaera tenuis; Umbilicosphaera hulburtiana; Umbilicosphaera sibogae var. sibogae; Western Basin; Zygosphaera amoena
    Type: Dataset
    Format: text/tab-separated-values, 11340 data points
    Location Call Number Limitation Availability
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  • 6
    Publication Date: 2024-03-18
    Description: Monthly series of hydrographic (temperature, salinity) and biogeochemical variables (nutrients, dissolved oxygen, particulate organic matter, chlorophyll, primary production), and zooplankton taxa abundance and biomass (dry weight) collected at one shelf station for various periods between 1990 and 2018 at A Coruña (NW Spain). These series are part of the long-term observational project RADIALES (Instituto Español de Oceanografía, IEO, Spain).
    Keywords: Abundance; Adaptação Costeira às alterações climáticas: conhecer os riscos e aumentar a resiliência; Biomass; chlorophyll; MarRisk; NE Atlantic; nutrients; NW Spain; RADIALES; Salinity; seRies temporAles De oceanografIA en eL norte de ESpaña; Temperature; Upwelling; Zooplankton
    Type: Dataset
    Format: application/zip, 3 datasets
    Location Call Number Limitation Availability
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  • 7
    Publication Date: 2024-03-18
    Description: Water column discrete observations of temperature, salinity, density, irradiance, dissolved nutrients (nitrate, nitrite, phosphate, ammonium, silicate), oxygen, chlorophyll-a, primary production (carbon uptake) rates, and particulate organic carbon and nitrogen from samples collected monthly at a shelf station off A Coruña (NW Spain) between 2017 and 2018. These series are part of the long-term observational project RADIALES (Instituto Español de Oceanografía, IEO, Spain).
    Keywords: Adaptação Costeira às alterações climáticas: conhecer os riscos e aumentar a resiliência; Ammonium; Bottle, Niskin; Carbon, organic, particulate; Carbon/Nitrogen ratio; Chlorophyll a; Colorimetry, flow-segmented (Grasshoff et al. 1983); CTD, Sea-Bird, SBE 25 SEALOGGER; DATE/TIME; Density, sigma-theta (0); DEPTH, water; E2CO; Galicia Margin; MarRisk; NE Atlantic; NIS; Nitrate; Nitrite; Nitrogen, organic, particulate; nutrients; NW Spain; Oxygen; Oxygen saturation; Phosphate; primary production; Primary production of carbon per hour; RADIALES; Radiation, photosynthetically active; Salinity; seRies temporAles De oceanografIA en eL norte de ESpaña; Silicate; Temperature; Temperature, water; Upwelling; Winkler titration (Parsons et al. 1984)
    Type: Dataset
    Format: text/tab-separated-values, 2499 data points
    Location Call Number Limitation Availability
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  • 8
    Publication Date: 2024-03-18
    Description: The main objective of the work conducted by the biogeochemical oceanography team was to determine the biogeochemichal role of the Mediterranean Water, over and around the Formigas, Ormonde and Seco de los Olivos seamounts, as well as the Gazul Mud volcano (ATLAS Task 1.3 and task 3.1, potential contribution also to tasks 2.1 and 2.2).Greater emphasis has been done on fine scale biogeochemical characterization 500 meters above the bottom with emphasis on CO2 variables to determine extant characteristics and any future threats / sensibility for benthic communities (ATLAS Tasks 1.3, 2.4 and 3.1 and potential contribution to task 2.2). The biogeochemical parameters measured have been dissolved oxygen (DO), pH, Total Alkalinity (TA), carbonate ion concentration (CO32-), Dissolved Inorganic Carbon (DIC) and inorganic nutrients (nitrate, nitrite, silicate and phosphate). pH in seawater was measured following the methodology by Clayton & Byrne (1993) using a double-wavelength spectrophotometric procedure (Byrne 1987). It has been reported at 25 °C and on the Total scale (pH25T). Total Alkalinity (TA) was analyzed following a double end point potentiometric technique by Pérez & Fraga (1987) further improved in Pérez et al. (2000). The carbonate ion concentration (CO32-) was determined spectrophotometrically following the recent method first proposed by Patsavas et al. (2015), after the works by Byrne and Yao (2008) and Easley et al. (2013). Dissolved Inorganic Carbon (DIC) samples were analysed using a VINDTA 3D system (www.MARIANDA.com). The fundament is extracting the CO2 from the seawater sample by adding phosphoric acid, followed by coulometric detection (Johnson et al., 1993). Inorganic nutrients were determined using colorimetric methods using a SEAL Analytical QuAAtro analyzer. Nitrate was measured with Cu-Cd reduction Naphthylenediamine photometric method. Nitrite was measured with Naphthylenediamine photometric method. Both methods are from Grasshoff et al (1983). Silicate and phosphate were measured with Molybdenum blue method from Murphy & Riley (1962). Some data have been subjected to quality control based on the WOCE/Go-Ship flags (Flag_O2; Flag_pH25T; Flag_TA; Flag_CO3; Flag_DIC). A Flag=2 means an acceptable data; flag=3 means a questionable data; flag=9 not sample measured. More information about the quality controls in Olsen et al. (2016; doi:10.5194/essd-8-297-2016).
    Keywords: Alkalinity, total; Atlantic Ocean; ATLAS; A Trans-Atlantic assessment and deep-water ecosystem-based spatial management plan for Europe; Bottle number; Carbon, inorganic, dissolved; Carbonate ion; CTD/Rosette; CTD-RO; Cu-Cd reduction Naphthylenediamine photometric method (Grasshoff et al., 1983); DATE/TIME; DEPTH, water; Event label; Formigas-100; Formigas-108; Formigas-109; Formigas-110; Formigas-111; Formigas-118; Formigas-119; Formigas-120; Formigas-121; Formigas-49; Formigas-50; Formigas-51; Formigas-52; Formigas-60; Formigas-61; Formigas-62; Formigas-63; Formigas-69; Formigas-71; Formigas-73; Formigas-82; Formigas-83; Formigas-84; Formigas-85; Formigas-86; Formigas-97; Formigas-98; Formigas-99; Gazul-1; Gazul-13; Gazul-15; Gazul-16; Gazul-17; Gazul-19; Gazul-25; Gazul-26; Gazul-27; Gazul-28; Gazul-30; Gazul-4; Gazul-5; Gazul-7; LATITUDE; LONGITUDE; MEDWAVES; Molybdenum blue method (Murphy & Riley, 1962); Naphthylenediamine photometric method (Grasshoff et al., 1983); Nitrate; Nitrite; Ormonde-141; Ormonde-142; Ormonde-143; Ormonde-144; Ormonde-149; Ormonde-151; Ormonde-152; Ormonde-153; Ormonde-154; Ormonde-159; Ormonde-160; Ormonde-161; Ormonde-162; Ormonde-163; Ormonde-164; Ormonde-165; Ormonde-32; Ormonde-33; Ormonde-34; Ormonde-40; Ormonde-43; Oxygen; pH; Phosphate; Quality flag; Salinity; Sarmiento de Gamboa; Seco_de_los_Olivos-170; Seco_de_los_Olivos-171; Seco_de_los_Olivos-172; Seco_de_los_Olivos-173; Seco_de_los_Olivos-174; Seco_de_los_Olivos-175; Seco_de_los_Olivos-185; Seco_de_los_Olivos-186; Seco_de_los_Olivos-187; Seco_de_los_Olivos-188; Seco_de_los_Olivos-189; Seco_de_los_Olivos-190; Seco_de_los_Olivos-191; Seco_de_los_Olivos-202; Seco_de_los_Olivos-203; Seco_de_los_Olivos-204; Seco_de_los_Olivos-205; Seco_de_los_Olivos-206; Seco_de_los_Olivos-207; Seco_de_los_Olivos-208; Seco_de_los_Olivos-209; see abstract; Silicon; Station label; Temperature, water; Winkler potentiometric after Langdon (2010)
    Type: Dataset
    Format: text/tab-separated-values, 10914 data points
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  • 9
    Publication Date: 2024-03-23
    Description: A 9-month aquarium experiment with the cold-water Dendrophyllia cornigera was conducted to investigate the single and combined effects of warming, acidification and deoxygenation on its ecophysiological response. The experiment took place at the Aquarium finisterrae (A Coruña, Spain) between 2022-05-06 and 2023-02-24. Treatment values for each parameter (current in situ vs. climate change) were: 12 °C and 15 °C (temperature); ~7.99 and 7.69 (pH); ~8.63 mg/L and 6.45 mg/L (dissolved oxygen concentration). A total of eight treatments (with 3 replicates each, 5 L aquaria) were set up. Dry mass of the coral nubbins (3 per experimental aquarium) was assessed by means of the buoyant weight technique (Jokiel et al. 1978, Davies, 1989), using an analytical balance (OHAUS AX124, precision 0.1 mg). The dry mass was calculated considering the nubbin net weight in water, the water density and the skeletal density of D. cornigera (2.63 g/cm3; Movilla et al. 2014). Measurements were performed just once the acclimation time finished and after 2 , 4, 6 and 9 months under the experimental conditions. Skeletal growth rates were calculated as the slope of the linear regression between the logarithmically transformed dry mass and the experimental time (%/day) (Orejas et al. 2011).
    Keywords: Buoyant weighing technique according to Davies (1989); Dendrophyllia_cornigera_Coral_Bycatch_A_Coruna; Dendrophyllia cornigera; Dendrophyllia cornigera, skeletal growth rate; Experimental treatment; growth; iAtlantic; Integrated Assessment of Atlantic Marine Ecosystems in Space and Time; Laboratory experiment; Multiple stressors; NE Atlantic; North Atlantic Ocean; NW Spain; Replicate; Species; Species, unique identification (Semantic URI); Species, unique identification (URI); Specimen identification; Type of study
    Type: Dataset
    Format: text/tab-separated-values, 576 data points
    Location Call Number Limitation Availability
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  • 10
    Publication Date: 2024-03-14
    Description: The molecular composition of marine dissolved organic matter (DOM) is still poorly understood, particularly in the Mediterranean Sea. In this work, DOM from the open Mediterranean Sea and the adjacent Northeast Atlantic Ocean was isolated by solid-phase extraction (SPE-DOM) and molecularly characterized using Fourier-Transform Ion Cyclotron Resonance Mass Spectrometry (FT-ICR-MS). We assessed the gradual reworking of the SPE-DOM transported by the shallow overturning circulation of the Mediterranean Sea by following the increase in molecular weight (+20 Da), oxygenation (+5%), degradation index (Ideg +22%) and the proportional decrease of unsaturated aliphatic compounds (+34%) along the Levantine Intermediate Water (LIW). This reworked SPE-DOM that leaves the Mediterranean Sea through the Strait of Gibraltar strongly contrasts with the fresh material transported by the inflow of Atlantic water (Ideg -25%). In the deep eastern and western overturning cells the molecular composition of the deep waters varied according to their area and/or time of formation. SPE-DOM of the waters formed in the Aegean Sea during the Eastern Mediterranean Transient (EMT) was more processed than the DOM in pre-EMT waters formed in the Adriatic Sea (molecular weight and the proportion of unsaturated aliphatic compounds were increased by 5 Da and 9%, respectively). Furthermore, pre-EMT waters contain more reworked SPE-DOM (Ideg +7%) than post-EMT waters formed also in the Adriatic Sea. In summary, our study shows that the Mediterranean Sea constitutes a laboratory basin where degradation processes and diagenetic transformations of DOM can be observed on close spatial and temporal scales.
    Type: Dataset
    Format: application/zip, 2 datasets
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