cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.819015
title: (Table 1) Krill (Euphausia superba) biomass estimates at South Georgia Island from 2001-2005

description: The South Georgia region supports a large biomass of krill that is subject to high interannual variability. The apparent lack of a locally self-maintaining krill population at South Georgia means that understanding the mechanism underlying these observed population characteristics is essential to successful ecosystem-based management of krill fishery in the region. Krill acoustic-density data from surveys conducted in the early, middle and late period of the summers of 2001 to 2005, together with krill population size structure over the same period from predator diet data, were used with a krill population dynamics model to evaluate potential mechanisms behind the observed changes in krill biomass. Krill abundance was highest during the middle of the summer in 3 years and in the late period in 2 years; in the latter there was evidence that krill recruitment was delayed by several months. A model scenario that included empirically derived estimates of both the magnitude and timing of recruitment in each year showed the greatest correlation with the acoustic series. The results are consistent with a krill population with allochthonous recruitment entering a retained adult population; i.e. oceanic transport of adult krill does not appear to be the major factor determining the dynamics of the adult population. The results highlight the importance of the timing of recruitment, especially where this could introduce a mismatch between the peak of krill abundance and the peak demand from predators, which may exacerbate the effects of changes in krill populations arising from commercial harvesting and/or climate change.
description: DATE/TIME is start date. Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
description: Supplement to: Reid, Keith; Watkins, Jon L; Murphy, Eugene J; Trathan, Phil N; Fielding, Sophie; Enderlein, Peter (2010): Krill population dynamics at South Georgia: implications for ecosystem-based fisheries management. Marine Ecology Progress Series, 399, 243-252
DOI: 10.1594/pangaea.736057
title: Pollen record of profile 1TZ1
DOI: 10.1594/pangaea.848553
title: Abundance and biomass of phytoplankton in the western part of the Black Sea during Branimir Ormanov cruise BO092000 in September 2000

description: The samples were concentrated down to 50 cm**3 by slow decantation after storage for 20 days in a cool and dark place. The species identification was done under light microscope OLIMPUS–BS41 connected to a video-interactive image analysis system at magnification of the ocular 10X and objective – 40X. A Sedgwick-Rafter camera (1ml) was used for counting. 400 specimen were counted for each sample, while rare and large species were checked in the whole sample (Manual of phytoplankton, 2005). Species identification was mainly after Carmelo T. (1997) and Fukuyo, Y. (2000).Taxon-specific phytoplankton abundance and biomass were analysed by Moncheva S., B. Parr, 2005. Manual for Phytoplankton Sampling and Analysis in the Black Sea.The cell biovolume was determined based on morpho-metric measurement of phytoplankton units and the corresponding geometric shapes as described in detail in (Edier, 1979).
DOI: 10.1594/pangaea.964874
title: Measurements of the coelenteron pH in a reef coral, Stylophora pistillata, using microsensors, under light and dark conditions and in tissues with different dinoflagellate densities

description: pH measurements in the cœlenteron (pHcoel) of a reef coral, Stylophora pistillata, were performed using the microsensor technique. Seven samples grown in long-term coral culture facilities on glass slides at the Centre Scientifique de Monaco were used for this study. Measuremetns were made using motorised micromanipulator for precise movements of the microsensor on the order of micrometres. We first performed depth profiles in the polyps and in the coenosarc in tissue with a high dinoflagellate density, under light conditions to determine the variation of pHcoel. We then measured pHcoel of polyps and coenosarc at eight light intensities, from darkness to strong illumination, which allowed us to derive a pHcoel-irradiance curve and evaluate the role of photosynthesis in influencing pH in the coelenteron. Finally, we measured pHcoel in the coenosarc under light and dark conditions in two regions of interest characterised by visually different densities of dinoflagellates residing within the coral tissue: a high dinoflagellate density (HDD) tissue at the centre of the microcolonies and a low dinoflagellate density (LDD) tissue at the edge of microcolonies. For each sample, at least three replicate measurements were performed under all conditions.
description: Stylophora pistillata is a species cultured for many years at the Centre Scientifique de Monaco. We use nubbins to make our experiments. Originally collected in the Red Sea 30 years ago. Samples are maintained in long-term coral culture facilities supplied with flowing seawater directly from the Mediterranean Sea (exchange rate 170% h-1), at a salinity of 38, temperature of 25°C, under an irradiance of 175 µmol photons m-2 s-1 (provided by a BLV HQI Light Bulb Nepturion, 150W) on a 12h: 12h photoperiod.
DOI: 10.1594/pangaea.967586
title: In-situ measurements in steep bedrock permafrost in an Alpine environment on the Matterhorn Hörnligrat, Zermatt Switzerland: 2008-2023

description: The data presented is a unique ten+ year data record obtained from in-situ measurements in steep bedrock permafrost in an Alpine environment on the Matterhorn Hörnligrat, Zermatt, Switzerland at 3500 m a.s.l. during the time period 2008-2023 by the PermaSense project. This data set constitutes the longest, densest and most diverse data record in the history of mountain permafrost research worldwide with 17 different sensor types used at 29 distinct sensor locations consisting of over 231.6 million data points. By documenting and sharing this data in this form we contribute to making our past research reproducible and facilitate future research based on this data e.g. in the area of analysis methodology, comparative studies, assessment of change in the environment, natural hazard warning and the development of process models. This data set provides primary data products as well as derived data products: GNSS raw data: GNSS observables in the form of daily RINEX 2.11 files GNSS derived data products: Daily positions computed using double-differencing GNSS processing Timelapse images: High-resolution visible light images Timeseries data raw: Per-year and location files or raw sampled data: Weather station, ground temperature, ground resistivity, fracture displacement and inclinometer data Timeseries derived data products: Cleaned and aggregated hourly values of the above Timeseries sanity plots: Standardized plots to obtain a visual overview and check data.All data contained in this data set including updates to newer data can also be retrieved using the toolset available at https://git.uibk.ac.at/informatik/neslab/public/permasense/permasense_datamgr from the online PermaSense data repository at http://data.permasense.ch. The version/tag used for the 2024 edition of the Matterhorn data is https://git.uibk.ac.at/informatik/neslab/public/permasense/permasense_datamgr/-/tree/Release_Pangaea_MH_data_2023.
DOI: 10.1594/pangaea.736059
title: Pollen record of profile 2TZ2
DOI: 10.1594/pangaea.880228
title: Plant macrofossil records from permafrost deposits of the Bykovsky Peninsula (NE Siberia)

description: Plant macrofossils from the Mamontovy Khayata permafrost sequence on the Bykovsky Peninsula reflect climate and plant biodiversity in west Beringia during the last cold stage. 14C dates suggest sediment accumulation between about 60,000 and 7500 14C yr B.P. The plant remains prove that during the last cold-stage arctic species coexisted with aquatic, littoral, meadow and steppe taxa. The reconstructed vegetation composition is similar to modern vegetation mosaics in central and northeast Yakutian relict steppe areas. Thus, productive meadow and steppe communities played an important role in the Siberian Arctic vegetation during the late Pleistocene and could have served as food resource for large populations of herbivores. The floristic composition reflects an extremely continental, arid climate with winters colder and summers distinctly warmer than at present.Holocene macrofossil assemblages indicate a successive paludification possibly connected with marine transgression, increased oceanic influence and atmospheric humidity. Although some steppe taxa were still present in the early Holocene, they disappeared completely before ~2900 14C yr B.P.
description: #value = ca. value
description: Supplement to: Kienast, Frank; Schirrmeister, Lutz; Siegert, Christine; Tarasov, Pavel E (2005): Palaeobotanical evidence for warm summers in the East Siberian Arctic during the last cold stage. Quaternary Research, 63(03), 283-300
DOI: 10.1594/pangaea.670928
title: (Table 1) Isotopic composition of noble gases from metasediments
DOI: 10.1594/pangaea.817843
title: Abundance of Gamma-A nifH genes in the northern South China Sea
DOI: 10.1594/pangaea.736062
title: Pollen record of profile 3TZ1
DOI: 10.1594/pangaea.736064
title: Pollen record of profile 3TZ2
DOI: 10.1594/pangaea.851376
title: Abundance and biomass of phytoplankton in the western part of the Black Sea during Parshin cruise BSRP in September and October 2005

description: The dataset is composed of 61 samples from 15 stations. The phytoplankton samples were collected by 5l Niskin bottles attached to the CTD system. The sampling depths were selected according to the CTD profile and the in situ fluorometer readings: surface, temperature, salinity and fluorescence gradients and 1 m above the bottom. At some stations phytoplankton net samples (20 µm mesh-size) were collected to assist species biodiversity examination. The samples (1l sea water) were preserved in 4% buffered to pH 8-8.2 with disodiumtetraborate formaldehyde solution and stored in plastic containers. On board at each station few live samples were qualitatively examined under microscope for preliminary analysis of taxonomic composition and dominant species.Taxon-specific phytoplankton abundance were concentrated down to 50 cm**3 by slow decantation after storage for 20 days in a cool and dark place. The species identification was done under light microscope OLIMPUS–BS41 connected to a video-interactive image analysis system at magnification of the ocular 10X and objective – 40X. A Sedgwick-Rafter camera (1ml) was used for counting. 400 specimen were counted for each sample, while rare and large species were checked in the whole sample (Manual of phytoplankton, 2005). Species identification was mainly after Carmelo T. (1997) and Fukuyo, Y. (2000).The cell biovolume of the taxon-specific phytoplankton biomass was determined based on morpho-metric measurement of phytoplankton units and the corresponding geometric shapes as described in detail in (Edier, 1979).
DOI: 10.1594/pangaea.865351
title: Diving photo-quadrants during POLARSTERN cruise ANT-XXIX/7
DOI: 10.1594/pangaea.873587
title: (Table 1) Strontium isotopic composition of the interstitial water and carbonate from IODP Hole 308-U1319A

description: The precision resulted in absolute uncertainties in the 87Sr/86Sr ratio is about 2 × 10^-5. Measurement of 87Sr/86Sr ratio for NIST 987 Sr standard during the course of these analyses yielded a value of 0.710247 ± 0.000015 (2 sigma, n = 10), which is the same as the reported value by other laboratories (e.g., 0.710254 ± 0.000023, McArthur, 1994, doi:10.1111/j.1365-3121.1994.tb00507.x).
DOI: 10.1594/pangaea.727697
title: Modern vegetation in the coastal lowlands of Oyogos Yar, Siberia, Russia, Appendix 6.5

description: Positions not given by the author. Cardinality (Artmaechtigkeit, explanation in the text): + : sporadic, 1: &lt;5%, 2: 5-15%, 3: 15-50%, 4: 50-80%, 5: &gt;80%Data included in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
DOI: 10.1594/pangaea.864709
title: Abundance of Euphausia superba larvae measured on multinet samples during POLARSTERN cruise ANT-XXIX/7
DOI: 10.1594/pangaea.903771
title: Spatial and temporal trends of per- and polyfluoroalkyl substances (PFASs) in bed sediments of a section of the Rhône River
DOI: 10.1594/pangaea.903772
title: Spatial and temporal trends of per- and polyfluoroalkyl substances (PFASs) in a sediment core from the Rhône River
DOI: 10.1594/pangaea.873589
title: (Table 3) Strontium isotopic composition of the interstitial water from IODP Hole 308-U1324B

description: The precision resulted in absolute uncertainties in the 87Sr/86Sr ratio is about 2 × 10^-5. Measurement of 87Sr/86Sr ratio for NIST 987 Sr standard during the course of these analyses yielded a value of 0.710247 ± 0.000015 (2 sigma, n = 10), which is the same as the reported value by other laboratories (e.g., 0.710254 ± 0.000023, McArthur, 1994, doi:10.1111/j.1365-3121.1994.tb00507.x).
DOI: 10.1594/pangaea.769950
title: (Table 4) Mesozooplankton abundance and biomass and relative percentage of key zooplankton groups along the Bulgarian coast, Black Sea

description: Results of studies during Project of an international expedition onboard R/V Vladimir Parshin in September-October 2005 are presented. Intensive development of Bacillariophyceae and Dynophyceae was recorded in coastal waters of Bulgaria, Turkey, and in the Danube River delta during period of investigations. Increase in algae population was accompanied by rising of chlorophyll a concentration up to 2.0-5.5 µg/l. In the deep water region it did not exceed 0.5 µg/l. Phytoplankton growth rate in the surface water layer varied from 0.1 to 1.0 1/day. This parameter and NO2+NO3 concentration, as well as the silicon concentration were correlative, as was described by the Michaelis-Menten equation. Phytoplankton growth was affected by basic nutrients. Zooplankton grazing varied from 0.10 to 0.69 1/day and average values in different regions varied by 1.5 times. Microalgae size range is one of major factors of grazing regulation. Rate of phytoplankton consumption was decreasing with increasing the largest diatom Pseudosolenia calcar-avis impact on total biomass of nano- and microphytoplankton.
description: Supplement to: Stel'makh, Lyudmila V; Babich, I I; Tugrul, Suleyman; Moncheva, Snejana; Stefanova, Kremena (2009): Phytoplankton growth rate and zooplankton grazing in the western part of the Black Sea in the autumn period. Translated from Okeanologiya, 2009, 49(1), 90-100, Oceanology, 49(1), 83-92
DOI: 10.1594/pangaea.670927
title: (Table 1) Isotopic composition of noble gases from sediment core LR44-GPC-3, central North Pacific

description: grain size 5-10 µm
DOI: 10.1594/pangaea.818394
title: Temperature and light measurements at time series station Brandal 10 (Kongsfjorden, Spitsbergen)
DOI: 10.1594/pangaea.611474
title: Metadata of studied vegetation records in Central Yakutia, Appendix 3-1
DOI: 10.1594/pangaea.864704
title: Chorophyll a and particulate organic carbon measured on water bottle samples during POLARSTERN cruise ANT-XXIX/7
DOI: 10.1594/pangaea.873588
title: (Table 2) Strontium isotopic composition of the interstitial water and carbonate from IODP Hole 308-U1322B

description: The precision resulted in absolute uncertainties in the 87Sr/86Sr ratio is about 2 × 10^-5. Measurement of 87Sr/86Sr ratio for NIST 987 Sr standard during the course of these analyses yielded a value of 0.710247 ± 0.000015 (2 sigma, n = 10), which is the same as the reported value by other laboratories (e.g., 0.710254 ± 0.000023, McArthur, 1994, doi:10.1111/j.1365-3121.1994.tb00507.x).
DOI: 10.15468/dl.8a2kjg
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Anoda cristata",
 "Country is India",
 "HasCoordinate is true"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001329-250920141307145/datasets/export for details.
DOI: 10.15468/dl.azu7yn
title: Occurrence Download

description: A dataset containing 56 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Faunis aerope",
 "Country is China",
 "HasCoordinate is true"
 ]
}

 The dataset includes 56 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001330-250920141307145/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.1594/pangaea.736066
title: Pollen record of profile 3TZ5
DOI: 10.1594/pangaea.912827
title: Trace metal and metalloid elements in suspended particulate matter from the Eure River (Les Damps site), France
DOI: 10.15468/dl.cf5bw8
title: Occurrence Download

description: A dataset containing 1 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Anoda cristata",
 "Country is Israel",
 "HasCoordinate is true"
 ]
}

 The dataset includes 1 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001331-250920141307145/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.8ayz7q
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Anoda cristata",
 "Country is Italy",
 "HasCoordinate is true"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001332-250920141307145/datasets/export for details.
DOI: 10.1594/pangaea.864705
title: Growth increment and growth rate during POLARSTERN cruise ANT-XXIX/7
DOI: 10.1594/pangaea.864707
title: Dive observations during POLARSTERN cruise ANT-XXIX/7
DOI: 10.1594/pangaea.848556
title: Abundance and biomass of phytoplankton in the western part of the Black Sea during the R/V Akademik cruise Ak082001 in August 2001

description: The dataset is composed of 41 samples from 10 stations. The phytoplankton samples were collected by 5l Niskin bottles attached to the CTD system. The sampling depths were selected according to the CTD profile and the in situ fluorometer readings: surface, temperature, salinity and fluorescence gradients and 1 m above the bottom. At some stations phytoplankton net samples (20 µm mesh-size) were collected to assist species biodiversity examination. The samples (1l sea water) were preserved in 4% buffered to pH 8-8.2 with disodiumtetraborate formaldehyde solution and stored in plastic containers. On board at each station few live samples were qualitatively examined under microscope for preliminary analysis of taxonomic composition and dominant species.The taxon-specific phytoplankton abundance samples were concentrated down to 50 cm**3 by slow decantation after storage for 20 days in a cool and dark place. The species identification was done under light microscope OLIMPUS–BS41 connected to a video-interactive image analysis system at magnification of the ocular 10X and objective – 40X. A Sedgwick-Rafter camera (1ml) was used for counting. 400 specimen were counted for each sample, while rare and large species were checked in the whole sample (Manual of phytoplankton, 2005). Species identification was mainly after Carmelo T. (1997) and Fukuyo, Y. (2000).Total phytoplankton abundance was calculated as sum of taxon-specific abundances. Total phytoplankton biomass was calculated as sum of taxon-specific biomasses.The cell biovolume was determined based on morpho-metric measurement of phytoplankton units and the corresponding geometric shapes as described in detail in (Edier, 1979).
DOI: 10.1594/pangaea.864708
title: Abundance of Euphausia superba larvae measured at ice station PS81/566 during POLARSTERN cruise ANT-XXIX/7
DOI: 10.1594/pangaea.865352
title: Chorophyll a in sea ice during POLARSTERN cruise ANT-XXIX/7
DOI: 10.1594/pangaea.728840
title: (Table 1) Plant macrofossils from Cape Sabler

description: Plant macrofossil investigations were carried out on Late-Quaternary deposits at Cape Sabler (NW shore of Lake Taymyr, Siberia). Four dated samples (three Late Pleistocene, one Holocene) rich in plant macrofossils were analysed with respect to their floristic composition. The flora of the Holocene sample is similar to the recent plant cover in the study area and is mainly characterized by subarctic and high arctic dwarf-shrubs and hydrophytes. The Pleistocene samples, radiocarbon dated to ca. 30, 27 and 18 ka BP, reflect a species-rich vegetation. The high proportion of pioneer plants within these samples indicates frequent disturbances of the vegetation cover. Furthermore, an almost complete absence of hydrophytes and swamp plants and the dominance of xerophytes, respectively, are typical for the Pleistocene vegetation from the Cape Sabler section. The presence of the tundra–steppe Crassulaceae Orostachys spinosa gives evidence for extremely cryoxeric climatic conditions in the Central Taymyr Peninsula during the Late Pleistocene. The species composition of the Pleistocene samples thus proves the predominance of a continental climate during the Weichselian, which was characterized by a decreased cloud cover, and thus increased direct solar radiation reaching the ground and extreme annual temperature variations. That would have entailed higher summer temperatures, lower precipitation, and longer vegetation periods (due to shorter snowmelt), thus, better conditions than today for the growth of plants in the study area. The higher species diversity in the Weichselian samples confirms this assumption. All these factors caused mainly aerobic soil environments and favourable conditions for seasonal heating of soils.
description: Supplement to: Kienast, Frank; Siegert, Christine; Dereviagin, Alexander Yu; Mai, Dieter Hans (2001): Climatic implications of Late Quaternary plant macrofossil assemblages from the Taymyr Peninsula, Siberia. Global and Planetary Change, 31(1-4), 265-281