468 Works

Alkanes in fresh surface asphalts, supplement to: Rubin-Blum, Maxim; Antony, Chakkiath Paul; Borowski, Christian; Sayavedra, Lizbeth; Pape, Thomas; Sahling, Heiko; Bohrmann, Gerhard; Kleiner, Manuel; Redmond, Molly C; Valentine, D L; Dubilier, Nicole (2017): Short-chain alkanes fuel mussel and sponge Cycloclasticus symbionts from deep-sea gas and oil seeps. Nature Microbiology, 2, 17093

Thomas Pape, Patrizia Geprägs, Stefanie Buchheister & Gerhard Bohrmann
Cycloclasticus bacteria are ubiquitous in oil-rich regions of the ocean and are known for their ability to degrade polycyclic aromatic hydrocarbons (PAHs). In this study, we describe Cycloclasticus that have established a symbiosis with Bathymodiolus heckerae mussels and poecilosclerid sponges from asphalt-rich, deep-sea oil seeps at Campeche Knolls in the southern Gulf of Mexico. Genomic and transcriptomic analyses revealed that, in contrast to all previously known Cycloclasticus, the symbiotic Cycloclasticus appears to lack the genes...

Meteorological observations for Europe and the southern Mediterranean region, 1877-2012, supplement to: Ashcroft, Linden; Coll, Joan Ramon; Gilabert, Alba; Domonkos, Peter; Brunet, Manola; Aguilar, Enric; Castella, Merce; Sigro, Javier; Unden, Per; Harris, Ian; Jones, Phil (2018): A rescued dataset of sub-daily meteorological observations for Europe and the southern Mediterranean region, 1877-2012. Earth System Science Data, 10(3), 1613-1635

Linden Ashcroft, Joan Ramon Coll, Alba Gilabert, Peter Domonkos, Enric Aguilar, Javier Sigro, Merce Castella, Per Unden, Ian Harris, Phil Jones & Manola Brunet
Under the auspices of Work Package 1 of the European Union funded Uncertainties in Ensembles of Regional ReAnalysis (UERRA) project, we present a digital dataset of 8.8 million subdaily meteorological observations rescued across the European and the southern Mediterranean region. Data from 127 stations and of 15 climate variables (many of them Essential Climate Variables as defined by the Global Climate Observing System) in the northern Africa and European sectors have been recovered for the...

Landsliding analyses at site GeoB14401 and GeoB14403, NE Gela Basin, Strait of Sicily, Mediterranean Sea, supplement to: Kuhlmann, Jannis; Asioli, Alessandra; Trincardi, Fabio; Klügel, Andreas; Huhn, Katrin (2017): Landslide Frequency and Failure Mechanisms at NE Gela Basin (Strait of Sicily). Journal of Geophysical Research-Earth Surface, 122(11), 2223-2243

Jannis Kuhlmann, Alessandra Asioli, Fabio Trincardi, Andreas Klügel & Katrin Huhn
This study uses an integrated chronological framework from two MeBo boreholes and complementary ultra-high-resolution acoustic profiling in order to assess (1) the frequency of submarine landsliding at the continental margin of NE Gela Basin and (2) the associated mechanisms of failure. Accurate age control was achieved through absolute radiocarbon dating and indirect dating relying on isotope stratigraphic and micropaleontological reconstructions. A total of nine major slope failure events have been recognized that occurred within the...

OA sensitivity differs between populations of the Sydney Rock oyster, supplement to: Stapp, Laura; Parker, Laura M; O'Connor, Wayne A; Bock, Christian; Ross, Pauline M; Pörtner, Hans-Otto; Lannig, Gisela (2018): Sensitivity to ocean acidification differs between populations of the Sydney rock oyster: Role of filtration and ion-regulatory capacities. Marine Environmental Research, 135, 103-113

Laura Stapp, Laura M Parker, Wayne A O'Connor, Christian Bock, Pauline M Ross, Hans-Otto Pörtner & Gisela Lannig
Understanding mechanisms of intraspecific variation in resilience to environmental drivers is key to predict species' adaptive potential. Recent studies show a higher CO2 resilience of Sydney rock oysters selectively bred for increased growth and disease resistance ('selected oysters') compared to the wild population. We tested whether the higher resilience of selected oysters correlates with an increased ability to compensate for CO2-induced acid-base disturbances. After 7 weeks of exposure to elevated seawater PCO2 (1100 µatm), wild...

Synchronizing early Eocene deep-sea and continental records from the Bighorn Basin Coring Project, supplement to: Westerhold, Thomas; Röhl, Ursula; Wilkens, Roy H; Gingerich, Philip D; Clyde, William C; Wing, Scott L; Bowen, Gabriel J; Kraus, Mary J (2018): Synchronizing early Eocene deep-sea and continental records - cyclostratigraphic age models for the Bighorn Basin Coring Project drill cores. Climate of the Past, 14(3), 303-319

Thomas Westerhold, Ursula Röhl, Roy H Wilkens, Philip D Gingerich, William C Clyde, Scott L Wing, Gabriel J Bowen & Mary J Kraus
A consistent chronostratigraphic framework is required to understand the effect of major paleoclimate perturbations on both marine and terrestrial ecosystems. Transient global warming events in the early Eocene, 56-54 Ma ago, show the impact of large scale carbon input into the ocean-atmosphere system. Here we provide the first time-scale synchronization of continental and marine deposits spanning the Paleocene-Eocene Thermal Maximum (PETM) and the interval just prior to the Eocene Thermal Maximum 2 (ETM-2). Cyclic variations...

HS1 records bases on isotope, inorganic and organic geochemistry of sediment cores GeoB16224-1 and GeoB16212-2, supplement to: Crivellari, Stefano; Chiessi, Cristiano Mazur; Kuhnert, Henning; Häggi, Christoph; Portilho-Ramos, Rodrigo Costa; Zeng, Jing-Ying; Zhang, Yancheng; Schefuß, Enno; Mollenhauer, Gesine; Hefter, Jens; Alexandre, Felipe; Mulitza, Stefan; Sampaio, Gilvan (2018): Increased Amazon freshwater discharge during late Heinrich Stadial 1. Quaternary Science Reviews, 181, 144-155

Stefano Crivellari, Cristiano Mazur Chiessi, Henning Kuhnert, Christoph Häggi, Rodrigo Costa Portilho-Ramos, Jing-Ying Zeng, Yancheng Zhang, Enno Schefuß, Gesine Mollenhauer, Jens Hefter, Felipe Alexandre, Stefan Mulitza & Gilvan Sampaio
The temporal succession of changes in Amazonian hydroclimate during Heinrich Stadial 1 (HS1) (ca. 18-14.7 cal ka BP) is currently poorly resolved. Here we present HS1 records based on isotope, inorganic and organic geochemistry from a marine sediment core influenced by the Amazon River discharge. Our records offer a detailed reconstruction of the changes in Amazonian hydroclimate during HS1, integrated over the basin. We reconstructed surface water hydrography using stable oxygen isotopes (d18O) and Mg/Ca-derived...

Distribution of ostracod species during IODP Expedition 347, supplement to: Stepanova, Anna Yu; Obrochta, Stephen P; Quintana Krupinski, Nadine B; Hyttinen, Outi; Kotilainen, Aarno T; Andrén, Thomas (2019): Late Weichselian to Holocene history of the Baltic Sea as reflected in ostracod assemblages. Boreas, 48(3), 761-778

Anna Yu Stepanova, Stephen P Obrochta, Nadine B Quintana Krupinski, Outi Hyttinen, Aarno T Kotilainen & Thomas Andrén
Ostracoda counts during Exp 347

Increased fitness of a key appendicularian zooplankton species under warmer, acidified seawater conditions, supplement to: Bouquet, Jean-Marie; Troedsson, Christofer; Novac, Aliona; Reeve, Magnus; Lechtenbörger, Anna K; Massart, Wendy; Skaar, Katrine S; Aasjord, Anne; Dupont, Sam; Thompson, Eric M (2018): Increased fitness of a key appendicularian zooplankton species under warmer, acidified seawater conditions. PLoS ONE, 13(1), e0190625

Jean-Marie Bouquet, Christofer Troedsson, Aliona Novac, Magnus Reeve, Anna K Lechtenbörger, Wendy Massart, Katrine S Skaar, Anne Aasjord, Sam Dupont & Eric M Thompson
Ocean warming and acidification (OA) may alter the fitness of species in marine pelagic ecosystems through community effects or direct physiological impacts. We used the zooplanktonic appendicularian, Oikopleura dioica, to assess temperature and pH effects at mesocosm and microcosm scales. In mesocosms, both OA and warming positively impacted O. dioica abundance over successive generations. In microcosms, the positive impact of OA, was observed to result from increased fecundity. In contrast, increased pH, observed for example...

CICE outputs from Navy Earth System Model (NESM) and Global Ocean Forecast System (GOFS) 3.1, 2018

Richard A Allard, Neil P Barton, E Joseph Metzger & Michael W Phelps
This is part of the YOPP project and was updated with new 2018 model results regularly. Please note, that in December 2018 the name of the Navy Earth System Model (NESM) changed to Navy Earth System Prediction Capability (ESPC).

Sediment, ground ice, geochronological and paleoecological data from polygon cores in the Siberian Arctic

Lutz Schirrmeister, Anatoly A Bobrov, Elena Raschke & Sebastian Wetterich
During the expedition Kytalyk and Pokhodsk 2012 several cores in the polygonal tundra were drilled. Sediment data (gravimetric ice content, grain-size parameters, mass specific magnetic susceptibility, TC, TOC, TN, TOC/TN, d13C), ground ice data (dD, d18O, d excess) and paleoecological data (pollen, plant macrofossils, tecamoebae) are presented in these data sets. The data are related to the expeditions report "Studies of Polygons in Siberia and Svalbard" published in Reports on Polar and Marine Research 267...

Detailed tritium data of 3 pits drilled at Vostok station, supplement to: Fourré, Elise; Landais, Amaelle; Cauquoin, Alexandre; Jean-Baptiste, Philippe; Lipenkov, Vladimir Ya; Petit, Jean-Robert (2018): Tritium Records to Trace Stratospheric Moisture Inputs in Antarctica. Journal of Geophysical Research: Atmospheres, 123(6), 3009-3018

Elise Fourré, Amaelle Landais, Alexandre Cauquoin, Philippe Jean-Baptiste, Vladimir Ya Lipenkov & Jean-Robert Petit
Better assessing the dynamic of stratosphere‐troposphere exchange is a key point to improve our understanding of the climate dynamic in the East Antarctica Plateau, a region where stratospheric inputs are expected to be important. Although tritium (³H or T), a nuclide naturally produced mainly in the stratosphere and rapidly entering the water cycle as HTO, seems a first‐rate tracer to study these processes, tritium data are very sparse in this region. We present the first...

Known occurrences and modelled distribution and sympatry between Vultur gryphus and Coragyps atratus

Fausto Sáenz-Jiménez, Octavio Rojas-Soto, Jairo Pérez-Torres, Enrique Martínez-Meyer & James Sheppard
Climate change can cause geographic displacement of the ecological niche of a species, so that similar species that previously did not coexist could begin to face new interactions such as competition. Such geographic displacement and increased competition can also be exacerbated by anthropic intervention. Until less than 100 years ago Vultur gryphus and Coragyps atratus did not coexist. Nowadays, possibly as a result of climate change, changes in the distributions of both species created areas...

The decadal reflector heights for SG27 in Barrow, Alaska (2007-2016)

Yufeng Hu, Lin Liu & Kristine M Larson
Reflector height, the distance between the receiver antenna phase center and ground surface, are derived from the SNR data using GPS-IR.The data are stored in the text format with four column (year , day of year, reflector height, uncertainty) year by year. The reflector heights span from year 2007 to 2016, whose changes are opposite to the changes of ground surface.

Catch metadata, stomach content of herring and sprat and zooplankton data collected during a field cruise in the NE Baltic Sea, July 2015, supplement to: Ojaveer, Henn; Lankov, Ain; Raid, Tiit; Põllumäe, Arno; Klais, Riina (2018): Selecting for three copepods - feeding of sprat and herring in the Baltic Sea. ICES Journal of Marine Science, fsx249, 11 pp

Henn Ojaveer, Ain Lankov, Tiit Raid, Arno Põllumäe & Riina Klais
This data collection contains the detailed stomach content of 1495 herring and sprat, sampled in a July 2015 field cruise in NE Baltic Sea, accompanied by the zooplankton net sample at the end of each trawl.

Wet dissolved carbon concentration during the concentrated rainfall season (July-September, 2015) in Yangjuangou Catchment, Loess Plateau

Linhua Wang, Haw Yen, Liding Chen, Xinhui E & Yafeng Wang
Wet dissolved carbon deposition is a critical node of the global carbon cycle, but little is known about dissolved organic and inorganic carbon (DOC and DIC) concentrations and fluxes in the semi-arid areas of the Loess Plateau Region (LPR). In this study, we measured variations of DOC and DIC concentration in rainfalls at Yangjuangou Ecological Restoration and Soil and Water Observatory. Rainwater samples were collected in 16 rainfall events from July to September and the...

Reconciling North Atlantic climate modes: Revised monthly indices for the East Atlantic and the Scandinavian patterns beyond the 20th century, supplement to: Comas-Bru, Laia; Hernández, Armand (2018): Reconciling North Atlantic climate modes: Revised monthly indices for the East Atlantic and the Scandinavian patterns beyond the 20th century. Earth System Science Data, 10, 2329-2344

Laia Comas-Bru & Armand Hernández
Climate variability in the North Atlantic sector is commonly ascribed to the North Atlantic Oscillation. However, recent studies have shown that taking into account the second and third mode of variability (namely the East Atlantic – EA – and the Scandinavian – SCA – patterns) greatly improves our understanding of their controlling mechanisms, as well as their impact on climate. The most commonly used EA and SCA indices span the period from 1950 to present...

Chemical composition and formula of apatites from theTrês Estradas Carbonatite

Henrique De Maman Anzolin
These tables shows the results obtained by electron microprope analysis of apatites from the Três Estradas Carbonatite. The four types of apatite identified associated with the carbonatite were analysed using a Cameca ®SXfive equipment to determine the chemistry of different types of apatite, whose results are arranged in the table Electron Microprope Results. The data was used to calculate the chemical formula, showed in the table Chemical Formula. The CO3 value showed in the median...

Ice thickness and bedrock elevation data of Nioghalvfjerdsfjorden Glacier from seismic investigations in 1997/1998, supplement to: Mayer, Christoph; Reeh, Niels; Jung-Rothenhäusler, Frederik; Huybrechts, Philippe; Oerter, Hans (2000): The subglacial cavity and implied dynamics under Nioghalvfjerdsfjorden Glacier, NE-Greenland. Geophysical Research Letters, 27(15), 2289-2292

Christoph Mayer, Niels Reeh, Frederik Jung-Rothenhäusler, Philippe Huybrechts & Hans Oerter
During an extensive field program, glaciologcal data have been collected at Nioghalvfjerdsfjiorden Glacier (79 North Glacier) in NE-Greenland in 1997 and 1998. A central part of the field work was dedicated to seismic investigations of the floating part of the glacier, determining the ice thickness, the underlying water column depth and the bedrock elevation. The seismic reflexion measurements were carried out with a 24-channel seismograph (Strataview). 600g explosives were used as energy source at a...

Occurence data for the non-indigenous jellyfish species Blackfordia virginica in NW Europe from 2010-2017, supplement to: Jaspers, Cornelia; Huwer, Bastian; Weiland-Bräuer, Nancy; Clemmesen, Catriona (2018): First record of the non-indigenous jellyfish Blackfordia virginica (Mayer, 1910) in the Baltic Sea. Helgoland Marine Research, 72(1)

Cornelia Jaspers, Bastian Huwer, Nancy Weiland-Bräuer & Catriona Clemmesen
Positions, sampling times and occurence data for the non-indigenous jellyfish species Blackfordia virginica in NW Europe.

Temperature and illuminance from shallow fore reefs of the inner and midshelf Great Barrier Reef, 2015

Emma V Kennedy
This dataset contains over 110,000 observations of sea temperature (°C) and light (lux) on inner and mid-shelf coral reefs spanning the Great Barrier Reef during 2015. Readings were taken once every hour from temperature loggers (HOBO Pendant model UA-002-64, Onset), that were attached to each reef. Loggers were deployed on the shallow forereef (around 4-5 m deep) to capture temperature/light during a 120 day summer period (around Dec 2014-May 2015) and winter period (July-October 2015),...

Holocene environmental reconstruction at Lough Doo, Co. Mayo, Ireland: pollen, chemistry and palaeomagnetics

Michael O'Connell
Multiproxy analyses carried out on a 3-m core from L. Doo, a 6.3 ha lake, east of Attymass, Co. Mayo in the early 1980s.Pollen counts (M O'Connell & FJG Mitchell), 14C dates (Groningen 14C lab) and geochemical data (TJ Doherty & DA Murray) provided.Natural remanent magnetisation (NRM) results by PW Readman discussed in main publication (O'Connell et. al. 1987 in JQS 2:149-164).Age/depth model constructed using clam v. 2.2 (details are provided)

Inventories of glacier lakes in the Western Italian Alps from the 1930s to 2012, supplement to: Viani, Cristina; Giardino, Marco; Huggel, Christian; Perotti, Luigi; Mortara, Giovanni (2016): An overview of glacier lakes in the Western Italian Alps form 1927 to 2014 based on multiple data sources (historical maps, orthophotos and reports of the glaciological surveys). Geografia Fisica E Dinamica Quaternaria, 39, 203-214

Cristina Viani
Through the analysis of historical topographic maps and digital orthophotos, glacier lakes (and related features) of the Western Italian Alps (Piemonte and Aosta Valley regions) within the LIA maximum extent boundaries have been identified and digitalized in a GIS environment . Six glacier lake inventories have been produced, related to six different time steps: 1930s, 1970s, 1980s, 1990s, 2006-07 and 2012. A set of attributes has been assigned to each lake: area, perimeter, elevation, geographic...

Growth performance and survival of larval Atlantic herring, under the combined effects of elevated temperatures and CO2, supplement to: Sswat, Michael; Stiasny, Martina H; Jutfelt, Fredrik; Riebesell, Ulf; Clemmesen, Catriona (2018): Growth performance and survival of larval Atlantic herring, under the combined effects of elevated temperatures and CO2. PLoS ONE, 13(1), e0191947

Michael Sswat, Martina H Stiasny, Fredrik Jutfelt & Catriona Clemmesen
In the coming decades, environmental change like warming and acidification will affect life in the ocean. While data on single stressor effects on fish are accumulating rapidly, we still know relatively little about interactive effects of multiple drivers. Of particular concern in this context are the early life stages of fish, for which direct effects of increased CO2 on growth and development have been observed. Whether these effects are further modified by elevated temperature was...

Effect of warming and acidification on the defense of Fucus vesiculosus in benthocosm experiments, supplement to: Raddatz, Stefanie; Guy-Haim, Tamar; Rilov, Gil; Wahl, Martin (2017): Future warming and acidification effects on anti-fouling and anti-herbivory traits of the brown alga Fucus vesiculosus (Phaeophyceae). Journal of Phycology, 53(1), 44-58

Tamar Guy-Haim, Stefanie Raddatz, Gil Rilov & Martin Wahl
Human-induced ocean warming and acidification have received increasing attention over the past decade and are considered to have substantial consequences for a broad range of marine species and their interactions. Understanding how these interactions shift in response to climate change is particularly important with regard to foundation species, such as the brown alga Fucus vesiculosus. This macroalga represents the dominant habitat former on coastal rocky substrata of the Baltic Sea, fulfilling functions essential for the...

Impact of Ocean Acidification and Warming on the bioenergetics of developing eggs of Atlantic herring Clupea harengus., supplement to: Leo, Elettra; Dahlke, Flemming; Storch, Daniela; Pörtner, Hans-Otto; Mark, Felix Christopher (2018): Impact of Ocean Acidification and Warming on the bioenergetics of developing eggs of Atlantic herring Clupea harengus. Conservation Physiology, 6(1)

Elettra Leo, Flemming Dahlke, Daniela Storch, Hans-Otto Pörtner & Felix Christopher Mark
Atlantic herring (Clupea harengus) is a benthic spawner, therefore its eggs are prone to encounter different water conditions during embryonic development, with bottom waters often depleted of oxygen and enriched in CO2. Some Atlantic herring spawning grounds are predicted to be highly affected by ongoing Ocean Acidification and Warming with water temperature increasing by up to +3°C and CO2 levels reaching ca. 1000 μatm (RCP 8.5). Although many studies investigated the effects of high levels...

Registration Year

  • 2018

Resource Types

  • Collection


  • University of Iowa