cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.943525
title: Laminaria digitata gametophyte survival and sporophyte formation during exposure to increased temperatures

description: To assess the thermal adaptation of microscopic stages of the kelp Laminaria digitata along latitudes, we conducted laboratory experiments on samples from six locations in the NE Atlantic (Spitsbergen (SPT), Tromsø (TRM), Bodø (BOD; all Norway), Helgoland (HLG; Germany), Roscoff (ROS) and Quiberon (QUI; both France)), spanning the species' entire distribution range. Gametophyte stock cultures from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research were used. Prior to the experiments, cultures were stored at 15°C in iron-free ½ Provasoli enriched seawater in 3-4 µmol photons/m²/s red light. In experiment 1, we exposed gametophytes to (sub-) lethal high priming temperatures (20-25°C) for two weeks, followed by two weeks of recovery at 15°C, to observe gametophyte survival and sporophyte formation. During the experiments, samples were kept in 15 µmol photons/m²/s white light under a 16:8h light:dark cycle.
DOI: 10.1594/pangaea.943521
title: Laminaria digitata gametophyte survival and microscopic sporophyte formation, abundance and growth during exposure to decreased temperatures

description: To assess the thermal adaptation of microscopic stages of the kelp Laminaria digitata along latitudes, we conducted laboratory experiments on samples from six locations in the NE Atlantic (Spitsbergen (SPT), Tromsø (TRM), Bodø (BOD; all Norway), Helgoland (HLG; Germany), Roscoff (ROS) and Quiberon (QUI; both France)), spanning the species' entire distribution range. Gametophyte stock cultures from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research were used. Prior to the experiments, cultures were stored at 15°C in iron-free ½ Provasoli enriched seawater in 3-4 µmol photons/m²/s red light. In experiment 2, samples were subjected to (sub-) optimal low temperatures (0-15°C) for 21 days, to assess gametophyte survival, sporophyte formation and growth. During the experiments, samples were kept in 15 µmol photons/m²/s white light under a 16:8h light:dark cycle. Sporophyte growth rates both in length and in width were determined as follows: GR = (x2-x1)/(t2-t1), where x is the length or width (μm) and t is the time in weeks at time point 1 and 2.
DOI: 10.1594/pangaea.943518
title: Integrated survival of Laminaria digitata gametophytes exposed to increased temperatures

description: To assess the thermal adaptation of microscopic stages of the kelp Laminaria digitata along latitudes, we conducted laboratory experiments on samples from six locations in the NE Atlantic (Spitsbergen (SPT), Tromsø (TRM), Bodø (BOD; all Norway), Helgoland (HLG; Germany), Roscoff (ROS) and Quiberon (QUI; both France)), spanning the species' entire distribution range. Gametophyte stock cultures from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research were used. Prior to the experiments, cultures were stored at 15°C in iron-free ½ Provasoli enriched seawater in 3-4 µmol photons/m²/s red light. In experiment 1, we exposed gametophytes to (sub-) lethal high priming temperatures (20-25°C) for two weeks, followed by two weeks of recovery at 15°C, to observe gametophyte survival and sporophyte formation. During the experiments, samples were kept in 15 µmol photons/m²/s white light under a 16:8h light:dark cycle.
DOI: 10.1594/pangaea.666265
title: Meiofauna abundances at the Arctic Håkon Mosby Mud Volcano (HMMV) of sediment core PS64/312-1
DOI: 10.1594/pangaea.143617
title: Heavy mineral contents in 50-100 µm grain size fraction of bottom sediments from the Core AKK2000-138, Barents Sea
DOI: 10.1594/pangaea.615344
title: Heavy mineral composition of 0.100-0.050 mm size fraction of bottom sediments from the Barents Sea sampled in 2005 from R/V Ivan Petrov
DOI: 10.1594/pangaea.249982
title: Plankton abundance of mocness net M44/4_D-MOC304
DOI: 10.1594/pangaea.743509
title: (Table 2) Distribution of main species of planktonic foraminifers in Core AMK21-2179, Woodlark Basin
DOI: 10.1594/pangaea.695147
title: Mesozooplankton abundance in water of the Aegean Sea at Station SEPT-1998-IR04wp2
DOI: 10.1594/pangaea.946866
title: Freshwater zooplankton abundance in different water bodies from a polygonal tundra landscape near the WWF station Kytalyk at the Berelekh River in the Indigirka lowland (NE Siberia) during summer 2011

description: Patterned ground of the polygonal tundra yields sensitive indicators of environmental and climate change. Polygon ponds, mires and cryosoils are typical components of Arctic Siberian wetlands underlain by permafrost. Field studies of recent environmental dynamics were carried out in the Indigirka lowland in summer 2011 and 2012. Using a multidisciplinary approach, several stages of polygonal systems were studied as modern tundra habitats in the surrounding of the WWF station Kytalyk at the Berelekh River, a tributary of the Indigirka River. The floral and faunal associations of the polygonal tundra landscape were described. Ecological, hydrological, meteorological, limnological and cryological features were analyzed in order to evaluate modern environmental conditions and their essential controlling parameters. A monitoring program was carried out to measure changes of air, water and ground temperatures as well as water conductivity, water level and soil moisture and to collect water, diatom, zooplankton, zoobenthos, tecamoebae, phytoplankton and ostracod samples. These data sets contain environmental field data, logger data, various ecological data, and analyses of sediments and water.This dataset comprises freshwater zooplankton abundance data in different water bodies from a polygonal tundra landscape, near the WWF station Kytalyk at the Berelekh River.Note: Microscopic magnification was x20 for zooplankton and x40-100 for Rotifera
DOI: 10.1594/pangaea.56839
title: Sedimentology of core PS1006-1
DOI: 10.1594/pangaea.777195
title: Nematode abundances in sediments from the Storegga Slide (Norwegian Sea) obtained during the VICKING expedition in 2006

description: Numbers are total abundances per 10 cm**2
DOI: 10.1594/pangaea.695162
title: Mesozooplankton abundance in water of the Ionian Sea at Station SEPT-2000-IPA1wp2

description: Microplankton species composition analysis was performed according to the inverted microscope method of Utermoehl. Samples for identification and enumeration of larger phytoplankton cells (&gt;5µm) were preserved in alkaline Lugol solution. Utermoehl, H., 1958. Zur Vervollkommung der quantitativen Phytoplankton-Methodik. Mitt. Int. Ver. Theor. Angew. Limnol., 9:1-38.
DOI: 10.1594/pangaea.695172
title: Mesozooplankton abundance in water of the Ionian Sea at Station SEPT-2000-IRI14wp2
DOI: 10.1594/pangaea.695110
title: Mesozooplankton abundance in water of the Ionian Sea at Station MARCH-2000-IRI27wp2
DOI: 10.1594/pangaea.695143
title: Mesozooplankton abundance in water of the Aegean Sea at Station MAY-1997-MNB4wp2
DOI: 10.1594/pangaea.777191
title: Nematode abundances in sediments from the Håkon Mosby Mud Volcano (HMMV) obtained during expeditions with Polarstern and Pourquoi Pas?

description: Numbers are total abundances per 10 cm**2
DOI: 10.1594/pangaea.249975
title: Plankton abundance of mocness net M44/4_D-MOC220
DOI: 10.1594/pangaea.125639
title: Mineral composition of 0.1-0.05 mm size fraction of sediment core PS-2066
DOI: 10.1594/pangaea.935735
title: Abundance data from soil microarthropods (Oribatida, Acari and Collembola, Hexapoda) of alpine snowbeds in the European Alps (summer 2017)

description: This dataset represents abundance data from soil microarthropods (Oribatida, Acari and Collembola, Hexapoda) from five alpine sites across the European Alps, sampled in summer 2017. The sites were: (1) Furka Pass, Uri, Switzerland, (2) Matsch Valley, South Tyrol, Italy, (3) Untersulzbach Valley, Salzburg, Austria, (4) Innergschlöss, Tyrol, Austria, and (5) Mallnitz, Carinthia, Austria. On each site we chose 3-6 snowbeds, where litter and soil core samples were taken. Each snowbed was subdivided into three sections: top (early snowmelt), middle, and bottom (late snowmelt). The data was used to evaluate how soil animal communities are responding to life conditions across snowbeds along a west-east transect of the European Alps, and to create a reference inventory for future investigations of climate change effects on snowbed ecosystems.
DOI: 10.1594/pangaea.943570
title: Abundance of zooplankton from microscopic analyses during POLARSTERN cruise PS78 (ARK-XXVI/1)

description: Abundance (ind. m-3) of zooplankton taxa was calculated from samples of Polarstern cruise PS78 (ARK-XXVI/1) on a transect across Fram Strait. Samples were taken with the Multinet midi (Hydrobios, Kiel), which is equipped with five nets (mesh size: 150 µm). Samples were analysed via microscopic analyses for comparison with image-based analysis.
DOI: 10.15468/dl.9pk4xd
title: Occurrence Download

description: A dataset containing 6587 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Primolius couloni"
 ]
}

 The dataset includes 6587 records from 22 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001708-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.1594/pangaea.695160
title: Mesozooplankton abundance in water of the Aegean Sea at Station SEPT-1998-MNB6wp2

description: Microplankton species composition analysis was performed according to the inverted microscope method of Utermoehl. Samples for identification and enumeration of larger phytoplankton cells (&gt;5µm) were preserved in alkaline Lugol solution. Utermoehl, H., 1958. Zur Vervollkommung der quantitativen Phytoplankton-Methodik. Mitt. Int. Ver. Theor. Angew. Limnol., 9:1-38.
DOI: 10.1594/pangaea.695133
title: Mesozooplankton abundance in water of the Aegean Sea at Station MAY-1997-IR30wp2
DOI: 10.1594/pangaea.51689
title: Sedimentology of core PS1640-1
DOI: 10.1594/pangaea.125637
title: Mineral composition of 0.1-0.05 mm size fraction of sediment core PS-1417
DOI: 10.1594/pangaea.873325
title: Element content on spot measurements with SEM/EDX at station GeoB15903-1
DOI: 10.1594/pangaea.904953
title: (Table 4) Epidote / allanite grains major elements from Penninic metasedimentary unit

description: The major element chemistry of selected epidote / allanite grains calculated from regions of interest (user-defined polygons) on the SEM-EDS maps.
DOI: 10.1594/pangaea.782179
title: Tree-ring width of Quercus species from historical object sample 6753B/01A, Netherlands, Coevorden

description: Species: Quercus species; No of rings: 110; first year: 1285; tree-death year: 1395; Pith: not applicable; Heartwood: complete; Sapwood: incomplete; Number of sapwood rings: 16; Last ring under bark: absent
DOI: 10.1594/pangaea.143625
title: Heavy mineral contents in 50-100 µm grain size fraction of bottom sediments from the Core AKK2000-72, Barents Sea
DOI: 10.1594/pangaea.782181
title: Tree-ring width of Quercus species from historical object sample 6753B/03M, Netherlands, Coevorden

description: Species: Quercus species; No of rings: 148; first year: 1249; tree-death year: 1397; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.51723
title: Sedimentology of core PS1799-1
DOI: 10.1594/pangaea.782180
title: Tree-ring width of Quercus species from historical object sample 6753B/02A, Netherlands, Coevorden

description: Species: Quercus species; No of rings: 148; first year: 1249; tree-death year: 1397; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 21; Last ring under bark: present
DOI: 10.1594/pangaea.51674
title: Sedimentology of core PS1588-3
DOI: 10.1594/pangaea.695102
title: Mesozooplankton abundance in water of the Aegean Sea at Station JUNE-1998-MNB2wp2
DOI: 10.1594/pangaea.816522
title: Abundance of mesozooplankton determined from water bottle samples during AEGAEO cruise A92

description: The entire samples from deep layers or aliquota (1/4) from the upper layer have been analyzed under a binocular microscope. Copepoda and cladocera species have been identified and enumerated; other zooplankton species have been identified and enumerated at higher taxonomic levels (usually named as zooplankton groups).
DOI: 10.1594/pangaea.695140
title: Mesozooplankton abundance in water of the Aegean Sea at Station MAY-1997-MNB2wp2
DOI: 10.1594/pangaea.985850
title: Smear slide microscopy images of IODP Hole 389-M0097C

description: Smear slide microscopy images of IODP Hole 389-M0097C of International Ocean Discovery Program (IODP) Expedition 389 (Hawaiian Drowned Reefs) taken during the Onshore phase of this expedition (2025-02-06 to 2025-02-26 at the Bremen Core Repository (BCR) hosted at MARUM – Center for Marine Environmental Sciences, University of Bremen). Only one paleontology (PAL) sample taken standard wise during offshore operations was suitable for production of smear slide (389-M0097C-23R-1,70-73). For visual inspection and imaging an Olympus BX-51 stereo microscope (WKH 10x/1-2 observation tube) equipped with an Olympus DP-22 digital camera has been used.For further methodological information see methods chapter in Webster, J.M. et al., 2025 https://doi.org/10.14379/iodp.proc.389.2025
description: Data was submitted and proofread by Vera Barbara Bender, MARUM - Center for Marine Environmental Sciences (University Bremen) on behalf of ECORD Science Operator Data Management (https://www.ecord.org).
DOI: 10.1594/pangaea.778330
title: (Table 2) Iron sulfide abundances and sulfur contents in bottom sediments from the Gulf of California

description: Abundances of globules and micronodules were counted in 2x2 cm slides.
DOI: 10.1594/pangaea.676519
title: Heavy mineral composition of 0.100-0.050 mm grain size fraction from Kara Sea bottom sediments sampled from R/V Ivan Petrov in 2000
DOI: 10.1594/pangaea.676952
title: Heavy mineral composition of 0.100-0.050 mm grain size fraction of sedimentary rocks from Hole VNIIO-1985-82 drilled in the Barents Sea

description: Types of rocks and their ages are given in the special data set; see: doi:10.1594/PANGAEA.676954
DOI: 10.1594/pangaea.711782
title: Stomach content of Sprattus sprattus during HEINCKE cruise HE181

description: Ship speed: 3 kn; heave speed: 0.5 m/sec; fier speed: 0.7 m/sec; mesh size: 550 µm
DOI: 10.1594/pangaea.982534
title: Pollen-based vegetation counts from IODP Site 353-U1446, Bay of Bengal

description: The dataset includes counts of all identified pollen and spore morphotypes, as well as the main ecological groups: tropical forest, wet evergreen forest, tropical deciduous forest and xerophyte plants. Samples of 1–5 g of dry sediment were processed using the standard protocol for marine samples, which includes coarse sieving (150 μm mesh), consecutive treatments with cold HCl and cold HF and micro-sieving (5 μm mesh). Residues were mounted unstained in a mobile media (glycerol) to allow polar and equatorial observations of pollen grains. Counting was performed using a Nikon light microscope at ×500 and ×1000 (oil immersion) magnification.
description: This dataset was additionaly funded by the French research program LEFE (INSU-CNRS) through Project MICMAc.
DOI: 10.1594/pangaea.941764
title: Oxygen consumption of F0 and F1 larval and juvenile European seabass Dicentrarchus labrax in resonse to ocean acidification and warming

description: Ongoing climate change is leading to warmer and more acidic oceans. The future distribution of fish within the oceans depends on their capacity to adapt to these new environments. Only few studies have examined the effects of ocean acidification (OA) and warming (OW) on the metabolism of long-lived fish over successive generations. We therefore aimed to investigate the effect of OA on larval and juvenile growth and metabolism on two successive generations of European sea bass (Dicentrarchus labrax L.) as well as the effect of OAW on larval and juvenile growth and metabolism of the second generation. European sea bass is a large economically important fish species with a long generation time.F0 larvae were produced at the aquaculture facility Aquastream (Ploemeur-Lorient, France) and obtained at 2 days post-hatch (dph). From 2 dph F0 larvae were reared in the laboratory in two PCO2 conditions (ambient and Δ1000). Larval rearing was performed in a temperature controlled room and water temperatures were fixed to 19°C in F0. In juveniles and adults, water temperatures of F0 sea bass were adjusted to ambient temperature in the Bay of Brest during summer (up to 19°C), but were kept constant at 15 and 12°C for juveniles and adults, respectively, when ambient temperature decreased below these values.F1 embryos were obtained by artificial reproduction of F0 broodstock fish. Fertilized eggs were incubated at 15°C and at the same PCO2 conditions as respective F0. Division of F1 larvae from egg rearing tanks into experimental tanks took place at 2 dph. F1 larvae were reared in four OAW conditions: two temperatures (cold and warm life condition, C and W) and two PCO2 conditions (ambient and Δ1000). Larval rearing was performed in a temperature controlled room and water temperatures were fixed to 15 and 20°C for C and W larvae, respectively. In juveniles, water temperatures of F1 sea bass were adjusted to ambient temperature in the Bay of Brest during summer (up to 19°C), but were kept constant at 15°C when ambient temperature decreased below these values. F1-W was always 5°C warmer than the F1-C treatment.OAW conditions for F0 and F1 rearing were chosen to follow the predictions of the IPCC for the next 130 years: ΔT = 5°C and ΔPCO2 = 1000 µatm, following RCP 8.5.We analysed larval and juvenile growth in F0 and F1. Larval routine metabolic rates (RMR, in F1), juvenile standard metabolic rates (SMR, in F0 and F1) and juvenile critical oxygen concentrations (PO2crit, in F0 and F1) were obtained on individuals via intermittent flow-respirometry. Measurements were conducted at the rearing conditions of the respective larva or juvenile. Fish were fasted for 3h and 48-72h for larvae and juveniles, respectively. After the respirometry trial, larvae were photographed to measure there body length and frozen until measurement of dry mass. Juveniles body length and wet mass was directly determined with calipers and a balance.
DOI: 10.1594/pangaea.695138
title: Mesozooplankton abundance in water of the Aegean Sea at Station MAY-1997-IR88wp2
DOI: 10.1594/pangaea.81994
title: Plankton abundance of mocness net M44/4_D-MOC267
DOI: 10.1594/pangaea.185833
title: Heavy mineral composition of 0.1-0.05 mm grain size fraction from Kara Sea sediments, core Shtorm-1963-278
DOI: 10.1594/pangaea.51508
title: Sedimentology of core PS1431-1
DOI: 10.1594/pangaea.738212
title: (Table 1.4) Mineral composition of grain size fraction 1-0.01 mm from sediments of Core AMK15-1785
DOI: 10.1594/pangaea.695113
title: Mesozooplankton abundance in water of the Ionian Sea at Station MARCH-2000-IRI31wp2
DOI: 10.1594/pangaea.937499
title: Species data of littoral macroinvertebrate communities of alpine lakes along an elevational gradient (Hohe Tauern National Park, Austria) in July/August 2018

description: Alpine lakes support unique communities which may respond with great sensitivity to climate change. To understand the drivers of benthic macroinvertebrate community structure, samples were collected in the littoral of 28 lakes within Hohe Tauern National Park, Austria. Sampling took place from early July to early August 2018 between altitudes of 2,000 and 2,700 m a.s.l. The extent of habitat types in the lake littoral was estimated. Habitat types were classified into sediment (maximum grain size of 2 mm), small rocks (up to 20 cm x 15 cm x 5 cm), and large boulders/sheer rock faces. The extent of rocky habitats was calculated as the sum of areas covered by small rocks and boulders/sheer rock faces. A total area of 1 m² was sampled in each lake, using a hand net with a sharp frame (25 cm in width) and 500 µm mesh-size. Mixed samples were taken, covering each habitat type proportional to its extent in the lake (100% corresponding to 1 m²). For habitats covering up to 10% of the lake, a standardized area of 0.1 m² was sampled. In sediment, the uppermost 5 cm of the ground were scooped into the net by sweeping it swiftly through the sediment. When sampling large boulders or rock faces, a metal spatula was used to scrape macroinvertebrates off the surface and collect them in the net. Macroinvertebrates were brushed off small rocks using a toothbrush over water-filled trays. The dimensions of those small rocks were measured, and total surface area was calculated, assuming a suitable geometric form (ellipsoid or cuboid). Samples were presorted in the field and preserved in 4% formalin. After 3-4 weeks, all samples were rinsed in tap water and transferred to 70% ethanol for further storage. Identification was performed using a stereomicroscope (OLYMPUS SZX16, 11.2x-184x) to the lowest taxon possible.
DOI: 10.1594/pangaea.782076
title: Tree-ring width of Quercus species from historical object sample 6738B/07A, Netherlands, Groningen

description: Species: Quercus species; No of rings: 79; first year: 1434; tree-death year: 1513; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.968500
title: Charcoal counts of sediment core LLCore2 from Lost Lake, British Columbia in 2020

description: This dataset provides charcoal counts for the Holocene lacustrine sedimentary sequence retrieved from Lost Lake, Canada (49.4038, -122.9756, 235 m above sea level). The LLCore2 composite sediment core was collected from Lost Lake, in the Lower Seymour Conservation Reserve, North Vancouver, British Columbia, Canada in fall 2020. The composite core is composed of a 0.41 meter surface core, collected using a Glew gravity corer, and a 2.41 meter sediment core collected using a Livingstone piston corer. The chronology was established using 210Pb, 137Cs, and accelerator mass spectrometry 14C radiometric dating. 1-cm³ volumetric charcoal samples were collected at 1-cm intervals along the core and isolated according to Hallett et al. (2003, doi:10.1139/x02-177), Walsh et al. (2008, doi:10.1016/j.yqres.2008.05.002), and Murphy et al. (2019, doi:10.3389/fevo.2019.00090). Charcoal fragments were counted using a Leica M205C stereomicroscope and measured against depth (m) and age (ka BP). These data were collected to provide information about local and regional changes in ecosystem composition and fire activity throughout the Holocene in the Lower Mainland of British Columbia.
DOI: 10.1594/pangaea.782112
title: Tree-ring width of Quercus species from historical object sample 6745B/03A, Netherlands, Schoonebeek

description: Species: Quercus species; No of rings: 64; first year: 1550; tree-death year: 1614; Pith: not applicable; Heartwood: absent; Sapwood: absent; Number of sapwood rings: 0; Last ring under bark: absent
DOI: 10.1594/pangaea.782155
title: Tree-ring width of Quercus species from historical object sample 6750B/06A, Germany, Holdorf

description: Species: Quercus species; No of rings: 86; first year: 1694; tree-death year: 1780; Pith: not applicable; Heartwood: complete; Sapwood: complete; Number of sapwood rings: 15; Last ring under bark: present
DOI: 10.1594/pangaea.782196
title: Tree-ring width of Quercus species from historical object sample 6756B/04A, Netherlands, Schoonebeek

description: Species: Quercus species; No of rings: 46; first year: 1717; tree-death year: 1763; Pith: not applicable; Heartwood: complete; Sapwood: incomplete; Number of sapwood rings: 8; Last ring under bark: absent