Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
19
datasets available to search
ShareScore release 0.7.1
Dataset results
19 results for “North Pacific Gyre”
North Pacific Subtropical Gyre RCLV Atlas (Version 2)
<p>This dataset tracks Rotationally Coherent Lagrangian Vortices (RCLVs) at an 8-day resolution in the North Pacific Subtropical Gyre region around Hawai’i. The ‘lat’ and ‘lon’ variables represent the center coordinates of the vortex, or the extremum of integrated relative vorticity. The contour boundaries demark the edge of the RCLV based on 32-day backward-in-time Lagrangian trajectories. In other words, eddies in this dataset represents a fluid mass of substantial size that was coherent for at least 32 days. The fluid masses are tracked through time to assign IDs and RCLV ages. The software used to generate the dataset is publicly available at https://github.com/lexi-jones/RCLVatlas (DOI: <a href="https://doi.org/10.5281/zenodo.7702978" target="_blank" rel="noopener noreferrer">10.5281/ZENODO.7702978</a>).</p> <p>Version 1 of the dataset (https://simonscmap.com/catalog/datasets/RCLV_atlas; DOI: <a href="https://doi.org/10.5281/zenodo.8139149" target="_blank" rel="noopener noreferrer">10.5281/ZENODO.8139149</a>) only includes contours that represent features of age 32 days or older. Version 2 extends the dataset to include eddy genesis by advecting the particle sets backward-in-time to age 24, 16, and 8 days.</p>
Diel-regulated transcriptional cascades of microbial eukaryotes in the North Pacific Subtropical Gyre
<p>Trinity <em>de novo </em>assemblies of 24 poly-A+ selected, combined-replicate metatranscriptomes from HOE-Legacy 2 cruise KM1513 (Jul 24 - Aug 6, 2015). KM1513 cruise information, plots, and associated environmental data for the HOE Legacy II cruise can be found online at <a href="http://hahana.soest.hawaii.edu/hoelegacy/hoelegacy.html">http://hahana.soest.hawaii.edu/hoelegacy/hoelegacy.html</a>. Raw metatranscriptome short-read sequence data is available in the NCBI Sequence Read Archive under BioProject ID PRJNA492142. Code associated with this project is available on Github (<a href="https://github.com/armbrustlab/diel_eukaryotes">https://github.com/armbrustlab/diel_eukaryotes</a>).</p> <p> </p> <p> </p>
Data from" Euphotic Zone Metabolism in the North Pacific Subtropical Gyre Based on Oxygen Dynamics"
<p>This data set provides measurements of oxygen to argon molar ratios from discrete samples collected within the mixed layer at the long-term sampling site (Station ALOHA) of the Hawaii Ocean Time-Series program, within the North Pacific Subtropical Gyre, between November 2013 and January 2019 (near-monthly cruises). Samples were measured by membrane inlet mass spectrometry following Ferrón et al. (2015). Version 2 had corrected longitude data (in decimal degrees east). Version 3 includes a new file with estimated rates of net community production, gross oxygen production and community respiration for the mixed layer.</p>
A Hard Day's Night: Diel shifts in microbial eukaryotic activity in the North Pacific Subtropical Gyre
<p><strong>A Hard Day’s Night: Diel shifts in microbial eukaryotic activity in the North Pacific Subtropical Gyre </strong>(<em>submitted</em>)</p> <p><strong>Authors: </strong>Sarah K. Hu<sup>1</sup>*, Paige E. Connell<sup>1</sup>, Lisa Y. Mesrop<sup>1</sup>, & David A. Caron<sup>1</sup></p> <p><sup>1</sup>University of Southern California, Biological Sciences, Los Angeles, CA, USA</p> <p> </p> <p><strong>Abstract</strong></p> <p>Molecular analysis revealed diel rhythmicity in the metabolic activity of single-celled microbial eukaryotes (protists) at station ALOHA in the North Pacific Subtropical Gyre. Diel trends among different protistan taxonomic groups reflected distinct nutritional capabilities and temporal niche partitioning. Changes in relative metabolic activities among phototrophs corresponded to the light cycle, generally peaking in mid- to late-afternoon. Metabolic activities of protistan taxa with phagotrophic ability were higher at night, relative to daytime, potentially in response to increased availability of picocyanobacterial prey. Tightly correlated Operational Taxonomic Units throughout the diel cycle implicated the existence of parasitic and mutualistic relationships within the microbial eukaryotic community, underscoring the need to define and include these symbiotic interactions in marine food web descriptions. This study provided a new high-resolution view into the ecologically important interactions among primary producers and consumers that mediate the transfer of carbon to higher trophic levels. Characterizations of the temporal dynamics of protistan activities contribute knowledge for predicting how these microorganisms respond to environmental forcing factors.</p> <p> </p> <p><a href="https://github.com/shu251/18Sdiversity_diel">See github for additional information on data analysis.</a></p>
Data for "Temporal and vertical variability in phytoplankton primary production and microbial community respiration in the North Pacific Subtropical Gyre"
<p>This ALOHA_GOP&R.xslx data set provides measurements of biological rates conducted between April 2015 and July 2020 at different depths in the euphotic zone at or in the vicinity of Station ALOHA (22° 45' N, 158° W), the long-term sampling site of the Hawaii Ocean Time-series (HOT) program, within the North Pacific Subtropical Gyre. </p> <p>The file ALOHA_GOP&R.xslx contains incubation-based measurements of gross oxygen production and community respiration that were measured in the same incubation bottles by applying the <sup>18</sup>O-water method and tracking net changes in oxygen to argon ratios during dawn to dusk in situ incubations, following Ferrón et al. (2016). The samples were measured using membrane inlet mass spectrometry. Rates were measured at 6 depths within the euphotic zone: 5, 25, 45, 75, 100, 125 m, except in a few occasions in which there were no measurements made at 125 m.</p> <p>Data description</p> <table> <tbody> <tr> <td> <p>Variable</p> </td> <td> <p>Description</p> </td> <td> <p>Units</p> </td> </tr> <tr> <td> <p>Date </p> </td> <td> <p>Date of sampling and start of incubation (UTC -10 hours)</p> </td> <td> <p> </p> </td> </tr> <tr> <td> <p>Cruise ID</p> </td> <td> <p>Cruise identification</p> </td> <td> <p>#</p> </td> </tr> <tr> <td> <p>Latitude</p> </td> <td> <p>Latitude</p> </td> <td> <p>degrees N</p> </td> </tr> <tr> <td> <p>Longitude</p> </td> <td> <p>Longitude</p> </td> <td> <p>degrees E</p> </td> </tr> <tr> <td>Stn ALOHA </td> <td>Whether the data are from Station ALOHA (yes/no)</td> <td> </td> </tr> <tr> <td>IncT</td> <td> <p>Incubation time</p> </td> <td> <p>hours</p> </td> </tr> <tr> <td> <p>Depth</p> </td> <td>Nominal depth of sampling and incubation </td> <td> <p>meters</p> </td> </tr> <tr> <td>GOP</td> <td>Gross oxygen production </td> <td>mmol O<sub>2</sub> m<sup>-3</sup> d<sup>-1</sup></td> </tr> <tr> <td>CR</td> <td>Estimate of community respiration </td> <td>mmol O<sub>2</sub> m<sup>-3</sup> d<sup>-1</sup></td> </tr> <tr> <td> <p>Flag GOP</p> </td> <td>Flag identification for gross oxygen production (good=1,questionable=2)</td> <td> <p>#</p> </td> </tr> <tr> <td> <p>Flag CR</p> </td> <td> <p>Flag identification for community respiration (good=1,questionable=2)</p> </td> <td> <p>#</p> </td> </tr> </tbody> </table> <p> </p> <p>The Light-dark_ALOHA_rates.xlsx file contains metabolic rates measured by the ligth-dark oxygen method between June 2005 and June 2007 at different depths in the euphotic zone at Station ALOHA (22° 45' N, 158° W). Rates of net community production, communnity respiration, and gross oxygen production were measured at 6 depths within the euphotic zone (5, 25, 45, 75, 100, 125 m) in dawn to dawn incubations, following Williams et al. (2004). </p> <p>Data description</p> <table> <tbody> <tr> <td> <p>Variable</p> </td> <td> <p>Description</p> </td> <td> <p>Units</p> </td> </tr> <tr> <td> <p>HOT</p> </td> <td>HOT cruise number</td> <td> <p>#</p> </td> </tr> <tr> <td> <p>Date</p> </td> <td>Date of sampling and start of incubation (UTC -10)</td> <td> <p> </p> </td> </tr> <tr> <td> <p>Depth</p> </td> <td>Nominal depth of sampling and incubation </td> <td> <p>meters</p> </td> </tr> <tr> <td>GOP</td> <td>Gross oxygen production, average of 8 replicates</td> <td>mmol O<sub>2</sub> m<sup>-3</sup> d<sup>-1</sup></td> </tr> <tr> <td>GOP SE</td> <td>Gross oxygen production standard error </td> <td>mmol O<sub>2</sub> m<sup>-3</sup> d<sup>-1</sup></td> </tr> <tr> <td>CR</td> <td> <p>Dark community respiration, average of 8 replicates</p> </td> <td> <p>mmol O<sub>2</sub> m<sup>-3</sup> d<sup>-1</sup></p> </td> </tr> <tr> <td> <p>CR SE</p> </td> <td>Dark community respiration standard error</td> <td> <p>meters</p> </td> </tr> <tr> <td>NCP</td> <td>Net community production,average of 8 replicates </td> <td>mmol O<sub>2</sub> m<sup>-3</sup> d<sup>-1</sup></td> </tr> <tr> <td>NCP SE</td> <td>Net community production standard error </td> <td>mmol O<sub>2</sub> m<sup>-3</sup> d<sup>-1</sup></td> </tr> </tbody> </table> <p> </p>
Carbon-Phosphorous Lyase Enzyme Activity Profiles in the North Pacific Subtropical Gyre
<p>These datasets contain oceanic enzyme activity measurements of Carbon-Phosphorus (C-P) lyase, a catalytic enzyme pathway, which cleaves C-P bonds, allowing microbial utilization of phosphonates as a phosphorous source. These activity measurements were made in the North Pacific Subtropical Gyre. Samples were collected in the top 1000 m of the water column on KM1717, KM1821, and KM2001 cruises and in the top 225 m of the water column on FK180310-2.</p>
Data from: Vertical gradients in species richness and community composition across the twilight zone in the North Pacific Subtropical Gyre
Although metazoan animals in the mesopelagic zone play critical roles in deep pelagic food webs and in the attenuation of carbon in midwaters, the diversity of these assemblages is not fully known. A metabarcoding survey of mesozooplankton diversity across the epipelagic, mesopelagic and upper bathypelagic zones (0-1500m) in the North Pacific Subtropical Gyre revealed far higher estimates of species richness than expected given prior morphology-based studies in the region (4,024 OTUs, 10-fold increase), despite conservative bioinformatic processing. OTU richness of the full assemblage peaked at lower epipelagic-upper mesopelagic depths (100-300m), with slight shoaling of maximal richness at night due to diel vertical migration, in contrast to expectations of a deep mesopelagic diversity maximum as reported for several plankton groups in early systematic and zoogeographic studies. Four distinct depth-stratified species assemblages were identified, with faunal transitions occurring at 100m, 300m, and 500m. Highest diversity occurred in the smallest zooplankton size fractions (0.2-0.5mm), which had significantly lower % OTUs classified due to poor representation in reference databases, suggesting a deep reservoir of poorly understood diversity in the smallest metazoan animals. A diverse meroplankton assemblage also was detected (350 OTUs), including larvae of both shallow and deep living benthic species. Our results provide some of the first insights into the hidden diversity present in zooplankton assemblages in midwaters, and a molecular reappraisal of vertical gradients in species richness, depth distributions, and community composition for the full zooplankton assemblage across the epipelagic, mesopelagic and upper bathypelagic zones.
North Pacific Subtropical Gyre 2018–2019 invertebrate biodiversity on macroplastic
<p>We show that the high seas are colonized by a diverse array of coastal species, which survive and reproduce in the open ocean, contributing strongly to its floating community composition. Analysis of rafting plastic debris in the Eastern North Pacific Subtropical Gyre revealed 37 coastal invertebrate taxa in total, largely of Western Pacific origin, exceeding pelagic taxa richness by three-fold. Coastal taxa, including diverse taxonomic groups and life history traits, occurred on 70.5% of debris items. Most coastal taxa possessed either direct development or asexual reproduction, possibly facilitating long-term persistence on rafts. Our results suggest that the historical lack of available substrate limited colonization of the open ocean by coastal species, rather than physiological or ecological constraints as previously assumed. It appears that coastal species persist now in the open ocean as a substantial component of a neopelagic community sustained by the vast and expanding sea of plastic debris.</p>
Data from: Vertical gradients in species richness and community composition across the twilight zone in the North Pacific Subtropical Gyre
Open the record for dataset details and reuse information.
North Pacific Subtropical Gyre 2018–2019 invertebrate biodiversity on macroplastic
Open the record for dataset details and reuse information.
Deep sea dissolved organic nitrogen and phosphorus (DON and DOP) at Station ALOHA in the North Pacific Subtropical Gyre
<p>Data on organic and inorganic nutrients in unfiltered seawater that was sampled at and around Station ALOHA, north of Oahu, Hawaii, in the North Pacific Subtropical Gyre. Seawater was collected into HDPE or polypropylene bottles and immediately frozen. Silicate, phosphate and nitrate+nitrite are determined colormetrically on a SEAL Analytical Autoanalyzer (AA3 with HR detectors), with the exception of nitrate+nitrite that is <0.5umol/L, which is analyzed by high-sensitivity chemiluminescence. Total phosphorus (TP) and total nitrogen (TN) are determined by analysis of phosphate and nitrate, respectively, after oxidation by high-intensity ultraviolet light. Total organic phosphorus and total organic nitrogen are determined by subtracting background PO4 and NO3+NO2 from TP and TN, respectively. Total organic carbon is determined by combustion on a Shimadzu TOC-V analyzer. This dataset was originally published in the following article, in which additional details and interpretations of the data can be found:</p> <p>R. K. Foreman, K. M. Björkman, C. A. Carlson, K. Opalk, D. M. Karl, (2019). Improved ultraviolet photo‐oxidation system yields estimates for deep‐sea dissolved organic nitrogen and phosphorus, Limnol. Oceanogr. Methods, <a href="https://doi.org/10.1002/lom3.10312">doi.org/10.1002/lom3.10312</a> <br> </p>
CTD and biogeochemical data from a phytoplankton bloom in the North Pacific Subtropical Gyre in summer 2022 (PARAGON II expedition)
<p>CTD and biogeochemical data from a phytoplankton bloom in the North Pacific Subtropical Gyre in August 2022 (PARAGON II expedition) aboard the R/V Kilo Moana (KM2209). </p>
Enhanced North Pacific subpolar gyre circulation led to hypoxia events during last deglacial warm periods
<p>Original data in "Enhanced circulation of the North Pacific subpolar gyre leading to an anoxic event during the Last Glacial Warm Period"。</p>
Nitrate 15N/14N measurements in two adjacent mesoscale eddies in the North Pacific Subtropical Gyre
<div> <p> </p> <p><span>Two adjacent mesoscale eddies of opposite polarity were surveyed during the MESO-SCOPE (Microbial Ecology of the Surface Ocean-Simons Collaboration on Ocean Processes and Ecology) expedition in June – July of 2017. The expedition aims to understand the impact of mesoscale eddies on the ecosystem of the North Pacific Subtropical Gyre. Hydrographic water samples collected during the cruise were measured for nitrate 15N/14N isotope ratios using the denitrifier method. These measurements were performed by Mengyang Zhou at the University of Connecticut. </span></p> <p> </p> </div> <div></div>
Nitrogen fixation rates in a cyclone-anticyclone eddy pair in the North Pacific Subtropical Gyre (Cruise KOK1607)
<p>Surface N<sub>2</sub> fixation rates were measured in the center of a cyclonic eddy (23.74°N, 157.39°W), an anticyclonic eddy (22.94°N, 155.95°W), and an additional station between the two eddies (23.44°N, 156.78°W) during May 2016. Seawater was collected from 25 m and sampled into 4.4 L bottles, spiked with <sup>15</sup>N<sub>2</sub>-enriched seawater, and incubated in surface-seawater cooled, flow-through, deck-board incubators fitted with screening to reproduce in situ light conditions. These incubations were conducted during the day (10 h incubation, 08:00-18:00 local time) and at night (6 h incubation, 22:00-04:00 local time), using seawater from separate CTD casts prior to each incubation. Times provided are the average time of each incubation. Details on <sup>15</sup>N<sub>2</sub>-enriched seawater preparation and other methodological details for the rate measurements are provided in Böttjer et al. (2017, <em>Limnology and Oceanography</em>, doi: 10.1002/lno.10386).</p> <p>Additional physical and biogeochemical data collected on cruise KOK1607 are available online: http://scope.soest.hawaii.edu/data/hoelegacy/data/</p>
Data from: Midwater zooplankton and suspended particle dynamics in the North Pacific Subtropical Gyre: a stable isotope perspective
Open the record for dataset details and reuse information.
Accompanying data for "Nitrogen fixation in mesoscale eddies of the North Pacific Subtropical Gyre: patterns and mechanisms"
<p>Data accompanying the manuscript "Nitrogen fixation in mesoscale eddies of the North Pacific Subtropical Gyre: patterns and mechanisms", submitted to Global Biogeochemical Cycles.</p> <p>Datasets refer to the 2017 MESO-SCOPE and 2018 Hawaiian Eddy Experiment cruises by the year of the expedition.</p> <p>Contents include:</p> <p>- Environmental measurements, such as temperature, concentrations of phosphates (PO<sub>4</sub><sup>3-</sup>) and dissolved iron (DFe), and scalar photosynthetically active radiation (PAR), from the transect and eddy center stations (see Eddies_environmental_datasets.xlsx).</p> <p>-N<sub>2</sub>-fixation rates (NFR) measured on in-situ arrays deployed in eddy centers (see Eddies_NFR_datasets.xslx)</p> <p>-<em>nifH</em> gene abundances measured in eddy centers and eddy transect (2017) (see Eddies_nifH_datasets.xlsx)</p> <p>-Diazotroph cell abundances measured by automated flow cytometry (FCM) in eddy centers (see Eddies_FCM_datasets.xlsx)</p> <p>-Diazotroph interpolated growth rate predictions derived from the ecophysiological model forced by in situ environmental data (see Eddies_interpolated_growthrates.xlsx)</p> <p>-Predator-prey model input/output including putative grazer abundances, grazing rate estimates, interaction and correlation matrices, and sensitivity analysis of the model (see Eddies_grazing_datasets.xlsx)</p> <p>-<em>Trichodesmium</em> optical/size properties measured by imaging flow cytometry in eddy centers and a surface bloom sampled in 2017 (see Eddies_Trichodesmium_properties.xlsx)</p>
Effects of nutrient enrichment on surface microbial community gene expression in the oligotrophic North Pacific Subtropical Gyre
GEO Series GSE109218. uncultured marine microorganism. 16 samples. Type: Expression profiling by array.
Differential timing for glucose assimilation in Prochlorococcus and coexistent microbial populations at the North Pacific Subtropical Gyre
GEO Series GSE154594. Prochlorococcus. 15 samples. Type: Expression profiling by array.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.