cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.965910
title: Seasonality of zooplankton active flux in the Canary Current System during COCA I and COCA II cruises in 2002 and 2003

description: The biological carbon pump is the mechanism by which the organic matter is exported or sequestered in the deep ocean from years to millennia. This downward transport is performed through physical transport of dissolved and particulate organic carbon, the sinking of particles or passive flux, and the active transport by diel and seasonal vertical migrants. The latter mechanism is still poorly studied, and seasonality of this active flux is even less known. We studied active flux by zooplankton in two transects from the productive coastal transition zone off Northwest Africa to the warm oligotrophic ocean. We estimated the metabolic activity from the surface to 900 m depth using the enzymatic activity of the electron transfer system (ETS) as a proxy for respiration. We found zooplankton ETS activity significantly higher during spring than during fall in the mesopelagic zone. Even at similar migrant biomass values, respiratory flux was higher during spring compared to fall due to the important differences in respiration rates in the mesopelagic zone. These striking differences of respiration rates in the mesopelagic zone was mainly due to the smaller body size of zooplankton during the productive season (spring). These results should be considered in models of active carbon export in the ocean. Here, we provide the data compiled during both cruises (spring and fall).
DOI: 10.1594/pangaea.969341
title: Decapod larvae collected in the Canary Islands using light traps

description: The data provided here was collected with the aim of providing information on spatial and temporal variability of the abundance, composition, and assemblages of settlement stage of brachyuran crabs in the Canary Islands (NW Africa) by sampling with light traps during four consecutive environmental seasons. Moreover, the data was collected to study the effect of Marine Protected Areas controlling larval assemblages in relation to non-indigenous species and indigenous species with commercial interest. Samples were collected with the Ecocean CARE® light trap. The CARE light trap consisted of a float with a watertight block containing a rechargeable light, and a 2 m conical net (2 mm mesh size) hanging 1.5 m below the sea surface The dataset includes abundance information of decapod crustacean larvae (megalopa stage) at various locations of El Hierro islands (Orchilla, Bonanza, Tacorón and Bahía de Naos) and Lanzarote island (Playa Quemada, Mala, Punta Fariones and Montaña Amarilla). The study spanned four consecutive oceanographic seasons (October-November 2019, March-May 2020, September-October 2020 and March-April 2021). The limited information available on the temporal and spatial dynamics of decapod crustacean larvae in tropical and subtropical regions makes this dataset highly valuable for the scientific community.
description: Funding: Award no. 2019/S 063-146989; project: "Seguimiento de especies y hábitats indicadores de cambio climático a largo plazo en el archipiélago canario", cofunded by Operational Program FEDER Canarias (2014-2020) and the Government of the Canary Islands
DOI: 10.1594/pangaea.982433
title: A validation data set of phytoplankton pigment concentrations and phytoplankton groups measured on water samples collected from various expeditions

description: This data set composes quality controlled in situ measurements of eight major pigments based on HPLC collected from various expeditions from 2016 to 2023. There are two subsets: subset 1 is the test dataset (99 matchups) extracted from and takes up 30 % of a global in situ PFT matchup data set, while the other 70 % was used for the retuning of the PFT algorithm for Sentinel 3 OLCI sensors. Subset 1 spans from 2016 to 2021 and is part of the global data set described in Xi et al. (2023): https://doi.pangaea.de/10.1594/PANGAEA.954738. Subset 2 containing 134 matchups is a newly compiled dataset that composites in situ PFT data collected from four recent mostly polar expeditions with the research vessel Polarstern (Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, 2017), that are PS126 (May–June 2021), PS131/1 (June–Aug 2022) and PS136 (May–June 2023) in the north Atlantic to the Arctic Ocean, and PS133 (Oct–Nov 2022) in the Southern Ocean. The in situ PFT data were derived from quality-controlled HPLC pigment concentrations using diagnostic pigment analysis (DPA) with updated pigment-specific weighting coefficients following Xi et al. (2023). This published data set has been used to validate satellite PFT products generated for the EU funded Copernicus Marine Service (CMEMS, https://marine.copernicus.eu/), which are derived from multi-sensor ocean color reflectance data and sea surface temperature using an empirical orthogonal function based approach (Xi et al. 2020; 2021).
DOI: 10.1594/pangaea.983395
title: Seasonal Dataset of DO, δ¹⁸ODO and Biogeochemical Parameters in the Danube River (2023–2024)

description: This dataset contains dissolved oxygen (DO) concentrations, stable oxygen isotope ratios of DO (δ¹⁸ODO), particulate organic carbon (POC) concentrations, and respiration/photosynthesis (R/P) ratios, along with corresponding parameters (temperature, δ¹⁸OH2O, nitrate) collected from the Danube River and its key tributaries during five seasonal sampling campaigns in 2023 and 2024. Water samples were collected using a weighted 2 L sampling bottle submerged 1–2 meters below the surface, with sampling conducted from the river center via bridges or passenger boats, and occasionally from the riverbank. In situ temperature measurements were taken with a multiparameter instrument (HQ40d, HACH™, Loveland, CO, USA). δ¹⁸ODO was analyzed using a modified automated equilibration system (Gasbench II, ThermoFisher Scientific™) coupled to a DELTA V Advantage isotope ratio mass spectrometer (IRMS, ThermoFisher Scientific™). This dataset captures seasonal variations in DO dynamics and provides valuable insights into oxygen sources and sinks within the Danube River. The data support the study of biogeochemical cycling in large river systems and can inform ecosystem management and conservation strategies in the face of environmental and climate change.
DOI: 10.1594/pangaea.984408
title: Epifauna communities on the sea-dumped munitions in the Lübeck Bay (Baltic Sea) observed with the ROV during R/V Alkor expedition AL622 in October 2024

description: The German waters contain around 1.6 millions of tons of munition, mostly dumped after the world wars. Within Lübeck Bay (Baltic Sea) the majority of the munition is concentrated in the officially designated dumpsites (Munition Cadaster "AmuCad", EGEOS GmbH, www.amucad.org ). However, many individual items or piles are found outside of these areas. Most of the munition contain conventional explosives, primarily 2,4,6-trinitrotoluene (TNT), which is toxic and is known to cause cancer in various organisms in water solutions with concentration &gt; 1 mg/l (Lotufo et l., 2017; Beck et al., 2018). The structure and composition of epifauna was investigated on the dumped munition in the previously unknown site using a remotely operated vehicle (BlueRobotics, model BlueROV2) during cruise AL622 with RV 'Alkor' on 19. October 2024. Nine individual munition objects and the surrounding sediment were observed in the central-northern Lübeck Bay at depth of 19-21 m at the area of ~500 m². Two videos have been made: the one of all objects filmed with the in-built camera; the second of six objects filmed with the additional GoPro3 camera, mounted on the ROV. Objects were identified as warheads from the Fieseler Fi 103 (known as V1) packed for transporting in additional metal carcass. The warheads are on a different stage of degradation. Their metal parts are covered with dense epifauna communities and bare explosives is mostly free from fouling.
DOI: 10.1594/pangaea.984142
title: Multibeam bathymetry processed data (Kongsberg EM 2040 working area dataset) of RV ALKOR during cruise AL628, east of Little Belt, Baltic Sea

description: Multibeam bathymetry processed data (EM 2040 multibeam echosounder) of RV ALKOR during cruise AL628 in the Baltic Sea. The raw data (.kmall) were processed using QPS Qimera software (v 2.6), based on the following workflow: 0.Raw data &gt; 1.Apply correct Sound Velocity Profiles -&gt; 2.Create dynamic surface (shallow Mode) -&gt; 3.Apply Spline Filter (Medium/Strong) &gt; 4. Finalize with manual 2D and 3D editing, -&gt; 5.Export in GeoTIFF format and projected in the UTM32N coordinate system (EPSG:32632). The produced rasters are named AL628_EM2040_'working area'_'resolution in cm'. The bathymetry dataset here is gridded at 0.25 m and 0.50 m resolution. The data products were created in the context of the DAM (German Marine Research Alliance), CONMAR research project.
description: These data should not be used for navigational purposes.
DOI: 10.1594/pangaea.984158
title: Multibeam bathymetry processed data (Kongsberg EM 2040 working area dataset) of RV ALKOR during cruise AL628, west of Little Belt, Baltic Sea

description: Multibeam bathymetry processed data (EM 2040 multibeam echosounder) of RV ALKOR during cruise AL628 in the Baltic Sea. The raw data (.kmall) were processed using QPS Qimera software (v 2.6), based on the following workflow: 0.Raw data &gt; 1.Apply correct Sound Velocity Profiles -&gt; 2.Create dynamic surface (shallow Mode) -&gt; 3.Apply Spline Filter (Medium/Strong) &gt; 4. Finalize with manual 2D and 3D editing, -&gt; 5.Export in GeoTIFF format and projected in the UTM32N coordinate system (EPSG:32632). The produced rasters are named AL628_EM2040_'working area'_'resolution in cm'. The bathymetry dataset here is gridded at 0.25 m and 0.50 m resolution. The data products were created in the context of the DAM (German Marine Research Alliance), CONMAR research project.
description: These data should not be used for navigational purposes.
DOI: 10.15468/dl.8w7nfk
title: Occurrence Download

description: A dataset containing 7623 species occurrences available in GBIF matching the query:
{
 "Geometry" : [
 "POLYGON ((-105.5688 21.59913, -105.4188 21.59913, -105.4188 21.74913, -105.5688 21.74913, -105.5688 21.59913))"
 ]
}

 The dataset includes 7623 records from 47 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032392-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.1594/pangaea.984160
title: Multibeam bathymetry processed data (Kongsberg EM 2040 working area dataset) of RV ALKOR during cruise AL628, southeast of Bornholm, Baltic Sea

description: Multibeam bathymetry processed data (EM 2040 multibeam echosounder) of RV ALKOR during cruise AL628 in the Baltic Sea. The raw data (.kmall) were processed using QPS Qimera software (v 2.6), based on the following workflow: 0.Raw data &gt; 1.Apply correct Sound Velocity Profiles -&gt; 2.Create dynamic surface (shallow Mode) -&gt; 3.Apply Spline Filter (Medium/Strong) &gt; 4. Finalize with manual 2D and 3D editing, -&gt; 5.Export in GeoTIFF format and projected in the UTM33N coordinate system (EPSG:32633). The produced rasters are named AL628_EM2040_'working area'_'resolution in cm' and AL628_EM2040_'working area'_'resolution in m'. The bathymetry dataset here is gridded at 0.75 m and 1 m resolution. The data products were created in the context of the DAM (German Marine Research Alliance), CONMAR research project.
description: These data should not be used for navigational purposes.
DOI: 10.1594/pangaea.984161
title: Multibeam bathymetry processed data (Kongsberg EM 2040 working area dataset) of RV ALKOR during cruise AL628, southwest of Bornholm, Baltic Sea

description: Multibeam bathymetry processed data (EM 2040 multibeam echosounder) of RV ALKOR during cruise AL628 in the Baltic Sea. The raw data (.kmall) were processed using QPS Qimera software (v 2.6), based on the following workflow: 0.Raw data &gt; 1.Apply correct Sound Velocity Profiles -&gt; 2.Create dynamic surface (shallow Mode) -&gt; 3.Apply Spline Filter (Medium/Strong) &gt; 4. Finalize with manual 2D and 3D editing, -&gt; 5.Export in GeoTIFF format and projected in the UTM33N coordinate system (EPSG:32633). The produced rasters are named AL628_EM2040_'working area'_'resolution in cm'. The bathymetry dataset here is gridded at 0.50 m and 0.75 m resolution. The data products were created in the context of the DAM (German Marine Research Alliance), CONMAR research project.
description: These data should not be used for navigational purposes.
DOI: 10.1594/pangaea.981244
title: ADCP current measurements (75 kHz) during RV MARIA S. MERIAN cruise MSM121

description: Upper-ocean current velocities were measured along the track of the cruise MSM121 (22 September — 16 October 2023) using a vessel-mounted acoustic current Doppler profiler (ADCP). The instrument was a Teledyne RD Instruments 75-kHz Ocean Surveyor, with the transducer was installed 6.0 m below the waterline. The instrument was operated in narrowband mode to achieve the maximum possible range. Velocity data were recorded in 100 8-m bins. The navigational data, as well as heading, pitch and roll data, were recorded together with the velocity measurements by the data acquisition software (VmDAS). The velocity data were converted into earth coordinates and averaged into one-minute intervals. A water track calibration was used (OSADCP_Toolbox) to determine misalignment angle (0.678°) and amplitude factor (1.010). The accuracy of the velocity data varies, and depends on the number of available good pings in each depth cell during one measurements interval.
description: Version 2, 2025-04-22: This version replaces doi:979947
DOI: 10.1594/pangaea.980084
title: Lowered ADCP data during RV MARIA S. MERIAN cruise MSM121

description: LADCP measurements used a two-instrument configuration with two Teledyne RDI 300 kHz workhorse ADCPs mounted in down- and up-looking positions. Data collection and processing was performed according to recommendations in the GO-SHIP manual (Thurnherr et al., 2010).
DOI: 10.1594/pangaea.959558
title: Basin-wide AMOC volume transport from the NOAC array at 47°N in the subpolar North Atlantic (1993-2018)

description: We present an observational estimate for the basin-wide AMOC volume transports (1993-2018) from measurements of the North Atlantic Changes (NOAC) array at 47°N. We combine transport estimates from the NOAC array, published in Moritz et al. (2021), Nowitzki et al. (2021) and Rhein et al. (2019) with hydrography from the ARMOR3D observational data set. The transport time series are extended back until 1993, using the relation between geostrophic transports and sea surface height (SSH), obtained from satellite altimetry. The resulting transport time series are combined to yield the basin-wide AMOC estimate. Here, we provide the timeseries in monthly resolution and low-pass filtered using a 4th order Butterworth filter with a cutoff period of 2 years.
DOI: 10.1594/pangaea.979947
title: ADCP current measurements (75 kHz) during RV MARIA S. MERIAN cruise MSM121

description: Upper-ocean current velocities were measured along the track of the cruise MSM121 (22 September — 16 October 2023) using a vessel-mounted acoustic current Doppler profiler (ADCP). The instrument was a Teledyne RD Instruments 75-kHz Ocean Surveyor, with the transducer was installed 6.0 m below the waterline. The instrument was operated in narrowband mode to achieve the maximum possible range. Velocity data were recorded in 100 8-m bins. The navigational data, as well as heading, pitch and roll data, were recorded together with the velocity measurements by the data acquisition software (VmDAS). The velocity data were converted into earth coordinates and averaged into one-minute intervals. A water track calibration was used (OSADCP_Toolbox) to determine misalignment angle (0.678°) and amplitude factor (1.010). The accuracy of the velocity data varies, and depends on the number of available good pings in each depth cell during one measurements interval.
DOI: 10.1594/pangaea.905729
title: OA and ripples seawater chemistry data

description: In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2019) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation by seacarb is 2019-09-11.
DOI: 10.1594/pangaea.985234
title: Natural abundance of stable carbon and nitrogen isotopes of small pelagic fishes from the northern Iberian shelf (NE Atlantic) between 1998 and 2024

description: This dataset contains the values of natural abundance of stable carbon and nitrogen isotopes in bulk muscle and gut contents, and nitrogen isotopes in muscle amino acids measured in 1801 samples of 10 small pelagic fish species sampled during the PELACUS spring cruises in the northwestern Iberian shelf and in adjacent waters of the southern Bay of Biscay. Length, weight, sex and maturity stage data for each individual analyzed are also provided. Fishes were collected by midwater trawls of ca. 30 m2 pelagic net equipped with a graded-mesh netting (starting with 30 mm and ending with 4 mm). The duration of each trawl was between 25 and 40 min. Different species occurred in the same trawls. Samples of muscle tissue and gut contents were preserved dried (50°C, 48 h) or freeze-dried. No treatments for lipid removal were used prior to carbon analyses. Stable isotope determinations in bulk samples (also carbon and nitrogen contents) were made by isotope-ratio mass spectrometry coupled to an elemental analyzer (Bode et al. 2018). Stable nitrogen isotopes in amino acids were determined by isotope-ratio mass spectrometry couples to a gas chromatograph (Bode et al., 2021).
description: Data was additionally funded by PELACUS (1998-1999) project.
DOI: 10.15468/dl.29tmbb
title: Occurrence Download

description: A dataset containing 1551 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Mexico",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Puma concolor"
 ]
}

 The dataset includes 1551 records from 67 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032393-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.jqc8k2
title: Occurrence Download

description: A dataset containing 48580 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Quercus rubra",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Country is United States of America"
 ]
}

 The dataset includes 48580 records from 176 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032394-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.w8w82a
title: Occurrence Download

description: A dataset containing 43296 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (function (name, pos = -1, envir = as.environment(pos), all.names = FALSE, pattern, sorted = TRUE) \n{\n if (!missing(name)) {\n pos &lt;- tryCatch(name, error = function(e) e)\n if (inherits(pos, \"error\")) {\n name &lt;- substitute(name)\n if (!is.character(name)) \n name &lt;- deparse(name)\n warning(gettextf(\"%s converted to character string\", sQuote(name)), domain = NA)\n pos &lt;- name\n }\n }\n all.names &lt;- .Internal(ls(envir, all.names, sorted))\n if (!missing(pattern)) {\n if ((ll &lt;- length(grep(\"[\", pattern, fixed = TRUE))) && ll != length(grep(\"]\", pattern, fixed = TRUE))) {\n if (pattern == \"[\") {\n pattern &lt;- \"\\\\[\"\n warning(\"replaced regular expression pattern '[' by '\\\\\\\\['\")\n }\n else if (length(grep(\"[^\\\\\\\\]\\\\[&lt;-\", pattern))) {\n pattern &lt;- sub(\"\\\\[&lt;-\", \"\\\\\\\\\\\\[&lt;-\", pattern)\n warning(\"replaced '[&lt;-' by '\\\\\\\\[&lt;-' in regular expression pattern\")\n }\n }\n grep(pattern, all.names, value = TRUE)\n }\n else all.names\n}, Ageratina adenophora, Amaranthus blitum, Amaranthus viridis, Bidens pilosa, Calopogonium mucunoides, Chromolaena odorata, Sieruela rutidosperma, Coreopsis lanceolata, Euphorbia hypericifolia, Euphorbia peplus, Leucaena leucocephala, Malvastrum coromandelianum, Mimosa diplotricha, Mitracarpus hirtus, Oenothera biennis, Opuntia dillenii, Phyllanthus amarus, Praxelis clematidea, Solanum erianthum, Sphagneticola trilobata, Synedrella nodiflora, Tridax procumbens, Trifolium repens, Waltheria indica, Aegilops tauschii)",
 "BasisOfRecord is one of (Specimen, Human Observation, Observation, Living Specimen, Machine Observation, Literature Occurrence)",
 "Country is one of (China, Chinese Taipei)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 43296 records from 74 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032395-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.djw9h2
title: Occurrence Download

description: A dataset containing 39194 species occurrences available in GBIF matching the query:
{
 "Geometry" : [
 "POLYGON ((-105.4188 21.59913, -105.2688 21.59913, -105.2688 21.74913, -105.4188 21.74913, -105.4188 21.59913))"
 ]
}

 The dataset includes 39194 records from 52 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032396-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.hb5r7q
title: Occurrence Download

description: A dataset containing 36515 species occurrences available in GBIF matching the query:
{
 "DatasetKey" : [
 "is Taxon occurrence data for the FungalRoot database"
 ]
}

 The dataset includes 36515 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032397-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.mtaggr
title: Occurrence Download

description: A dataset containing 175 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is one of (Specimen, Fossil)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Tupaia tana"
 ]
}

 The dataset includes 175 records from 13 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032398-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.6ts43b
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "Geometry" : [
 "POLYGON ((-108.4188 21.74913, -108.2688 21.74913, -108.2688 21.89913, -108.4188 21.89913, -108.4188 21.74913))"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032399-251025141854904/datasets/export for details.
DOI: 10.15468/dl.9n4vat
title: Occurrence Download

description: A dataset containing 804 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is China",
 "OccurrenceStatus is Present",
 "TaxonKey is Cyclobalanopsis glauca",
 "Year 2010-2025"
 ]
}

 The dataset includes 804 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032400-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.