cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.984582
title: Investigation of environmental disturbances and fluctuations in coastal environments

description: Coastal marine environments — including lagoons, fjords, and estuaries — are characterized by pronounced environmental variability, with fluctuations in salinity, temperature, and nutrient levels shaping microbial community structure and function. To explore these dynamic systems, we sampled 26 sites between December 2021 and January 2023 along the coasts of France and Chile, spanning lagoons, estuaries, fjords, harbours, and both coastal and offshore marine environments. Surface waters were collected using either Niskin bottles or polycarbonate carboys, with additional deeper layers obtained at three sites. Monthly sampling at six French sites enables the assessment of seasonal dynamics. The presented dataset captures multiple environmental gradients, ranging from terrestrial–marine transitions and salinity fluctuations to eutrophication level, seasonal, geographic and disturbance-related variation. A total of 116 samples were analysed for 13 environmental parameters alongside metabarcoding and metagenomic sequencing. Temperature and salinity were recorded in the field immediately after sampling. Chlorophyll a was quantified fluorometrically following acetone extraction (Holm-Hansen et al. 1965; Lorenzen 1967). Dissolved organic carbon (DOC) was measured using high-temperature catalytic oxidation (Benner and Strom 1993) with a TOC analyser. Fluorescent dissolved organic matter (fDOM) peaks T and C (as proxy for protein like and humic like DOM, respectively) were quantified with a Jasco FP-8500 spectrofluorometer (Coble 1996). Leucine incorporation rates were determined via the centrifugation method (Smith and Azam 1992), and respiration rates were estimated via oxygen consumption in 5 ml glass vials using PreSens OxoDishes and a SensorDish® Reader. Inorganic nutrients were analyzed using a QuAAtro39 or AA3HR autoanalyzer (Grasshoff et al. 2009; Aminot and Kérouel 2007).
description: #8888.00 = nutrients data available at https://www.moose-network.fr/; #9999.00 = nutrients data available at https://www.somlit.frAdditional funding information: * Fondation de la Mer, scholarship to Emile Laymand (https://www.fondationdelamer.org/nos-programmes/postuler-a-une-bourse/)* École Normale Supérieure de Paris (ENS-PSL), scholarship to Emile Laymand* European Commission (EC), Erasmus Mundus Joint Master scholarships to Mazharul Islam Sajeeb, Camila Aravena, Alizée Jamont* European Commission (EC), Erasmus+ scholarship to Maria Sierks* Institut de l'Océan de l'Alliance Sorbonne Université, scholarship to Papa Oumar Djibril Diallo
DOI: 10.25549/dunitz-c15-915
title: L.A. Marathon mural, Inglewood, 1990

description: L.A. Marathon mural, 1990, San Diego Freeway (405) North (just past the Century Boulevard). The mural depicts marathon runners in a photo-realist style. In acrylic, 18' x 236' by Kent Twitchell. Sponsored by City of Los Angeles Marathon Foundation -- Dunitz, Street gallery, rev. 2nd ed., p. 199, #3.
DOI: 10.1594/pangaea.984170
title: Multibeam bathymetry raw data (Kongsberg EM712 entire dataset) of RV HEINCKE during cruise HE659

description: Raw multibeam bathymetry data from the Kongsberg EM712 was acquired during the RV Heincke cruise HE659 in the German Bight in April 2025. The data was generally acquired during calm seas in water depths between 20 and 50 m. Primarily three different regions were surveyed (Borkumer Reef Ground, Sylt Outer Reef, and Helgoland). Generally the data is comprehensive and overlapping swaths creating a continuous bathymetry were archived. In some areas the data was acquired complementary to sidescan sonar surveys and individual tracks do not overlap. Data are unprocessed and therefore may contain some incorrect depth measurements (artifacts) without further processing. No tide variations are applied. Sound velocity profiles were acquired regularly. Overall, it appears that the data quality is rather good. The gridded data showed relatively few obstacles.
description: These data should not be used for navigational purposes.
DOI: 10.1594/pangaea.987319
title: Dissolved methane concentrations, diffusive methane flux and EOVs in the German Bight in September 2024 (Sternfahrt 12)

description: In continuation of the previous cruises (Sternfahrten) we covered a similar area with the RVs Ludwig Prandtl and Mya II. All instruments were set up in the MOSES laboratory container. Standard hydrographic parameters were determined with a pocket ferrybox running with ship's surface water supply. In addition, dissolved methane was determined continuously. We used a degassing unit which was using surface water from the ship's water supply. The gas mixture was subsequently analysed with a Greenhouse Gas Analyzer from LosGatos. Conversion to methane concentration was performed with water samples, from which the methane content was determined with gas chromatography. Atmospheric methane concentrations were obtained from the ICOS-station Helgoland. Wind speed was obtained from the ships meteorological systems. The diffusive flux was calculated as outlined in the additional meta data description.
DOI: 10.15468/dl.8ryy98
title: Occurrence Download

description: A dataset containing 1 species occurrences available in GBIF matching the query:
{
 "and" : [
 "GadmGid is CHN.29_1",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Philautus kempii"
 ]
}

 The dataset includes 1 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0003654-260226173443078/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.1594/pangaea.987482
title: Assessment of mobile invertebrates associated with mats of the red alga Phyllophora crispa at Giglio Island, Mediterranean Sea

description: Dataset on the epibenthic abundance of mobile invertebrates on P. crispa habitats at two study sites (Fenaio and Secca II) in the NW Mediterranean Sea (Giglio Island, Italy). Samples were obtained via SCUBA diving using a newly designed sampling device appropriate for mobile fauna in June 2023 and analyzed by microscopic determination and counting of specimens. The dataset includes details on the sampling efforts, diversity indices (Shannon (H'), Pielou (J'), Simpson (D)), and densities of organisms per m² seafloor. The number of individuals per family was counted. Densities of mobile invertebrates were extrapolated using wet weights and measured surface area of P. crispa samples. Detailed descriptions of the calculations can be found in the corresponding publication (Töpfel et al. 2025).
description: Further funding:This study was supported by baseline funding of the Marine Ecology department, University of Bremen and by the Institute for Marine Biology (Campese, Italy). A.Töpfel and M.Steinhoff received funding via the ERASMUS+ program.
DOI: 10.25549/dunitz-c15-918
title: History of transportation, Inglewood, 1940

description: History of transportation, 1940, Centinela Park, Redondo Boulevard entrance. A parade of life-size figures beginning with the early native Americans and Spanish horsemen to the pre-World War II period of turbo-prop planes. In petrochrome, 241' x 8' by Helen Lundeberg with assistance from Donald Totten. Sponsored by Federal Art Project -- Dunitz, Street gallery, rev. 2nd ed., p. 209, #11 (photo on p. 204).
DOI: 10.1594/pangaea.988155
title: Simulating atmospheric CO2 concentration for the Plio-Pleistocene using a new set of temperature and sea level reconstruction

description: In contrast to previous approaches, new reconstructions of changes in global mean surface temperature (Clark et al., 2024, doi: 10.1126/science.adi1908) and global mean sea level (Clark et al., 2025, doi: 10.1126/science.adv8389) include large variability in global mean sea level throughout the Pleistocene. Here we use them to force the global carbon cycle model BICYCLE-SE in different scenarios that capture the spread in existing CO2 reconstructions. This data set contains: - important otherwise not yet available data (4.5 Ma long time series of regional SST split by latitude (65°S-30°S | 30°S-30°N | 30°N-65°N) which have been used to force the model;- resulting major changes in the simulated carbon cycle (mean ocean salinity; Atlantic meridional overturning strength; Southern Ocean vertical mixing; global sea ice area);- simulated atmospheric CO2 in 3 scenarios that differ in volcanic CO2 outgassing and weathering strength.
description: This tgz contains a README.txt and 3 data files, whose headers explain details. The content of the three data files are:- clark2024s_regional_sst_4.5ma__withheader.dat: Used regional SST data for the last 4.5 Ma based on Clark et al. (2024)- BICYCLE-SE_all_newforcing_4.5ma_withheader.dat: Important forcing time series for the BICYCLE-SE model- BICYCLE-SE_3scenarios_atmCO24Ma_withheader.dat: Simulated atmospheric CO2 concentration using the BICYCLE-SE model for 3 different scenarios
DOI: 10.1594/pangaea.988693
title: Physical oceanography (CTD) during Maria S. Merian cruise MSM126

description: Seabird 911plus systems equipped with dual temperature-conductivity-oxygen sensors were employed. All systems had a 24-bottle water sampling rosette with 10 l Niskin bottles. Water sampling, processing, and calibration followed GO-SHIP recommendations (Swift, 2010; McTaggart et al., 2010; Uchida et al., 2010) and included the recommended steps Data Conversion, Sensor Time-Alignment, Creation of Bottle Files, Outlier Removal, Pressure Sensor Filtering, Conductivity Cell Thermal Mass Correction, Ship Roll Correction and Deck Offset Correction by Loop Editing, as well as Derivation of Calculated Properties. After these steps, conductivity and oxygen readings were calibrated against values determined with salinometry and Winkler titration , respectively. Finally, the downcast data was averaged over 1 dbar wide intervals. An independent upcast calibration was used to obtain calibrated CTDO values coincident with the discrete water samples. A SUNA nitrate probe (Satlantic) was mounted on the CTD frame as an additional instrument during all shallow casts (&lt;2000dbar). The nitrate measurements were also calibrated against water samples and the CTD data was supplemented accordingly.
description: PO-GLOBAL-SVN = 1146 used on 08-Dec-2025 10:35:47Matlab = 9.14.0.2206163 (R2023a)Release = 1nc_project = Jellyweb Madeiranc_uncertainty_p = 2.000000nc_uncertainty_t = 0.002000nc_uncertainty_s = 0.003000nc_uncertainty_o = 3.000000
DOI: 10.25549/dunitz-c15-17
title: Together we dance, Long Beach, 1991

description: Together we dance, Long Beach, 1991, C.D. Auto Repair and Body Center, exterior, Anaheim Street and Walnut Avenue. Images of African, Cambodian and Mexican Dancers. A Mural Mentor project. In acrylic, 3 panels, 15' x 40' by Elliott Pinkney with assistance from Idris Brown and Fermin "Pete" Santa Cruz. Sponsored by Long Beach Community Development Department and the Long Beach Department of Parks and Recreation -- Dunitz, Street gallery, rev. 2nd ed., p. 262, #43. According to the Google maps street view image, the mural does not exist anymore (as of November 2011).
DOI: 10.1594/pangaea.973411
title: Bulk parameters during incubation of sediment core 322-C0012

description: This data set shows the release of dissolved organic matter, hydrogen, hydrogenase, and inorganic ions (manganese, iron, total sulfur, and ammonium) at temperatures of 20°C (in situ), 35°C, 55°C, and 85°C during a slurry incubation of core C0012 sediment with artificial seawater.
DOI: 10.25549/dunitz-c15-1025
title: Voices, Long Beach VA Hospital, 1990

description: Voices, Long Beach, 1990, U.S. Department of Veteran Affairs Medical Center, 5901 East 7th Street (at Bellflower Boulevard), corridor between buildings 1 and 8, 3rd floor. A marine landscape that also features a Gabrieleno Indian girl reaching toward a soaring hawk. 9 1/4' x 55' by Jaclyn Seymour, Jennie McRae, Marisa Steere, Brenda Short, Blake Garner, Paul Denny and Jen Grey. Sponsored by California State University, Long Beach - VA Joint Institute -- Dunitz, Street gallery, p. 264, #54 B.
DOI: 10.1594/pangaea.973413
title: Concentration changes of acetate during incubation of sediment core 322-C0012

description: This data set shows the concentration changes of acetate at temperatures of 20°C (in situ), 35°C, 55°C, and 85°C during a slurry incubation of core C0012 sediment with artificial seawater.
DOI: 10.1594/pangaea.973414
title: Transformation of dissolved organic matter chracterized by FT-ICR-MS during incubation of sediment core 322-C0012

description: This data set shows the formulae of dissolved organic matter characterized by Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS) at temperatures of 20°C (in situ), 35°C, 55°C, and 85°C during a slurry incubation of core C0012 sediment with artificial seawater. Incubation time points are presented for day 0 (start), day 1 (only for 85°C), and day 55 (end).
description: RInt: The abundance of formulae (rIntn) is reported as relative intensity of an individual formula compared to the total intensity of all assigned formulae. The value of "0" indicates either no detected formulas or formulas with relative intensity (rInt) &lt; 0.02 and signal-to-noise ratios &lt; 8.
DOI: 10.1594/pangaea.983836
title: Stable isotope data for Sturgeon and Paddlefish specimens, Leaf Mining Data, and Yearling Fish Sizes from the Tanis Location in the Hell Creek Formation of North Dakota (U.S.A.): Isotope Data

description: Fossil specimens were obtained via field work over several years (2014-2021) at the Tanis site, in North Dakota, U.S.A. The specimens include: i) Sub-samples of sturgeon spines and paddlefish dentaries which were epoxy impregnated and sectioned using facilities at Florida Atlantic University. In 2024 a set of these samples were analyzed for stable isotope zonation (carbon and oxygen) at the Department of Earth Sciences, Durham University (UK). A customized micromill setup (computer-controlled ESI/New Wave Micromill with a 500 micron tungsten carbide drill bit) was used to sample fossil sturgeon and paddlefish specimens. Powders were removed by micro-spatula and weighed, with location of drill trace relative to outermost specimen edge logged via high resolution camera imaging. Powders were then analyzed by a Thermo-Finnigan (now Thermo Fisher Scientific) MAT 253 Isotope Ratio Mass Spectrometer into which CO2 was introduced through a Gasbench II device (external precision of about 0.05–0.10‰). Fossil fish powder samples were dissolved in 10 drops of orthophosphoric acid (H3PO4) under a helium (grade 5) atmosphere in exetainer vials. The solution was left to digest at 50 °C for two hours. The resultant gas mixture (CO2 and He) was introduced to a gas chromatographic column to isolate CO2. After passing a second water trap the CO2 was admitted to the mass spectrometer. Each sample run measured isotope ratios in 16 or 17 fossil fish powders and multiple replicates of four reference standards: 1) IAEA (International Atomic Energy Agency) international reference material CO1 (marble), 2) IAEA reference material LS VEC (lithium carbonate), 3) Durham internal standard DCS01 (calcite), and 4) a Durham internal standard DOBINS (equine hydroxyapatite). 13C/12C and 18O/16O ratios are reported as d values (‰ deviations) relative to Vienna PeeDee Belemnite (VPDB). ii) Fossil angiosperm leaves from the time-synchronous Chicxulub Event Deposit, sedimentary units 2a-c, were analyzed for the presence of insect leaf-mining traces, and a tally of trace absent vs. trace present specimens recorded. iii) Fossils of sub-yearling (young-of-year) fish from Unit 2a were also examined. Here. these were identified as members of one of three groups: sturgeon, paddlefish, or Amiidae, and their lengths and orientations recorded. iv) Synchrotron Rapid Scanning-X-ray Fluorescence (SRS-XRF) imaging was performed in this study at wiggler beamline 6-2 (SSRL). Incident beam energy for the experiments was set at 3.15 keV (flux ~10^9 photons-1) for Low-Z mapping and specimens were analysed within a He-purged chamber. Experiments utilized a beam diameter of either 50 or 100 µm, defined by a pinhole. A four-element Vortex ME4 silicon drift detector was used to detect fluoresced X-rays.
DOI: 10.25549/dunitz-c15-1027
title: Nature's concert, Long Beach Veterans Administration Hospital, 1990

description: Nature's concert, Long Beach Veterans Administration Hospital, 1990; 5901 East 7th Street (at Bellflower Boulevard), corridor between buildings 122 and 128. A playful, surreal assortment of characters perform on an imaginary backstage set. 8' x 143 1/2' by Steve Shloss, Madoka Takada, Soo Shin, Kamran Assadi, Paul Denny, Andrew Wilson, Jim Woodard, Evan Grekowicz, Arthur Williams and Jen Grey. Sponsored by California State University, Long Beach - VA Joint Institute -- Dunitz, Street gallery, p. 264, #54 C.
DOI: 10.1594/pangaea.983842
title: Stable isotope data for Sturgeon and Paddlefish specimens, Leaf Mining Data, and Yearling Fish Sizes from the Tanis Location in the Hell Creek Formation of North Dakota (U.S.A.): Fish Sizes

description: Fossil specimens were obtained via field work over several years (2014-2021) at the Tanis site, in North Dakota, U.S.A. The specimens include: i) Sub-samples of sturgeon spines and paddlefish dentaries which were epoxy impregnated and sectioned using facilities at Florida Atlantic University. In 2024 a set of these samples were analyzed for stable isotope zonation (carbon and oxygen) at the Department of Earth Sciences, Durham University (UK). A customized micromill setup (computer-controlled ESI/New Wave Micromill with a 500 micron tungsten carbide drill bit) was used to sample fossil sturgeon and paddlefish specimens. Powders were removed by micro-spatula and weighed, with location of drill trace relative to outermost specimen edge logged via high resolution camera imaging. Powders were then analyzed by a Thermo-Finnigan (now Thermo Fisher Scientific) MAT 253 Isotope Ratio Mass Spectrometer into which CO2 was introduced through a Gasbench II device (external precision of about 0.05–0.10‰). Fossil fish powder samples were dissolved in 10 drops of orthophosphoric acid (H3PO4) under a helium (grade 5) atmosphere in exetainer vials. The solution was left to digest at 50 °C for two hours. The resultant gas mixture (CO2 and He) was introduced to a gas chromatographic column to isolate CO2. After passing a second water trap the CO2 was admitted to the mass spectrometer. Each sample run measured isotope ratios in 16 or 17 fossil fish powders and multiple replicates of four reference standards: 1) IAEA (International Atomic Energy Agency) international reference material CO1 (marble), 2) IAEA reference material LS VEC (lithium carbonate), 3) Durham internal standard DCS01 (calcite), and 4) a Durham internal standard DOBINS (equine hydroxyapatite). 13C/12C and 18O/16O ratios are reported as d values (‰ deviations) relative to Vienna PeeDee Belemnite (VPDB). ii) Fossil angiosperm leaves from the time-synchronous Chicxulub Event Deposit, sedimentary units 2a-c, were analyzed for the presence of insect leaf-mining traces, and a tally of trace absent vs. trace present specimens recorded. iii) Fossils of sub-yearling (young-of-year) fish from Unit 2a were also examined. Here. these were identified as members of one of three groups: sturgeon, paddlefish, or Amiidae, and their lengths and orientations recorded. iv) Synchrotron Rapid Scanning-X-ray Fluorescence (SRS-XRF) imaging was performed in this study at wiggler beamline 6-2 (SSRL). Incident beam energy for the experiments was set at 3.15 keV (flux ~10^9 photons-1) for Low-Z mapping and specimens were analysed within a He-purged chamber. Experiments utilized a beam diameter of either 50 or 100 µm, defined by a pinhole. A four-element Vortex ME4 silicon drift detector was used to detect fluoresced X-rays.
DOI: 10.1594/pangaea.983843
title: Stable isotope data for Sturgeon and Paddlefish specimens, Leaf Mining Data, and Yearling Fish Sizes from the Tanis Location in the Hell Creek Formation of North Dakota (U.S.A.): Synchrotron Data

description: Fossil specimens were obtained via field work over several years (2014-2021) at the Tanis site, in North Dakota, U.S.A. The specimens include: i) Sub-samples of sturgeon spines and paddlefish dentaries which were epoxy impregnated and sectioned using facilities at Florida Atlantic University. In 2024 a set of these samples were analyzed for stable isotope zonation (carbon and oxygen) at the Department of Earth Sciences, Durham University (UK). A customized micromill setup (computer-controlled ESI/New Wave Micromill with a 500 micron tungsten carbide drill bit) was used to sample fossil sturgeon and paddlefish specimens. Powders were removed by micro-spatula and weighed, with location of drill trace relative to outermost specimen edge logged via high resolution camera imaging. Powders were then analyzed by a Thermo-Finnigan (now Thermo Fisher Scientific) MAT 253 Isotope Ratio Mass Spectrometer into which CO2 was introduced through a Gasbench II device (external precision of about 0.05–0.10‰). Fossil fish powder samples were dissolved in 10 drops of orthophosphoric acid (H3PO4) under a helium (grade 5) atmosphere in exetainer vials. The solution was left to digest at 50 °C for two hours. The resultant gas mixture (CO2 and He) was introduced to a gas chromatographic column to isolate CO2. After passing a second water trap the CO2 was admitted to the mass spectrometer. Each sample run measured isotope ratios in 16 or 17 fossil fish powders and multiple replicates of four reference standards: 1) IAEA (International Atomic Energy Agency) international reference material CO1 (marble), 2) IAEA reference material LS VEC (lithium carbonate), 3) Durham internal standard DCS01 (calcite), and 4) a Durham internal standard DOBINS (equine hydroxyapatite). 13C/12C and 18O/16O ratios are reported as d values (‰ deviations) relative to Vienna PeeDee Belemnite (VPDB). ii) Fossil angiosperm leaves from the time-synchronous Chicxulub Event Deposit, sedimentary units 2a-c, were analyzed for the presence of insect leaf-mining traces, and a tally of trace absent vs. trace present specimens recorded. iii) Fossils of sub-yearling (young-of-year) fish from Unit 2a were also examined. Here. these were identified as members of one of three groups: sturgeon, paddlefish, or Amiidae, and their lengths and orientations recorded. iv) Synchrotron Rapid Scanning-X-ray Fluorescence (SRS-XRF) imaging was performed in this study at wiggler beamline 6-2 (SSRL). Incident beam energy for the experiments was set at 3.15 keV (flux ~10^9 photons-1) for Low-Z mapping and specimens were analysed within a He-purged chamber. Experiments utilized a beam diameter of either 50 or 100 µm, defined by a pinhole. A four-element Vortex ME4 silicon drift detector was used to detect fluoresced X-rays.
DOI: 10.25549/dunitz-c15-1051
title: Community of music, Long Beach, 1989

description: Community of music, Long Beach, 1989, George Washington Middle School, exterior, 15th Street and Cedar Avenue. The universality of music is portrayed by showing how important to different cultures music is today and has been throughout history. Done as part of the Mural Mentor Project. In Nova Color acrylic, approximately 920 square feet by Ben Valenzuela with assistance from Brittany Powers, Opie Ortiz, Glen Sablaza and Art Valenzuela. Sponsored by the Long Beach Department of Parks and Recreation -- Dunitz, Street gallery, rev. 2nd ed., p. 258, #30 (photo on p. 259).