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.
89
datasets available to search
ShareScore release 0.9.0
Dataset results
89 results for “Chukchi Sea”
Fig. 1 in Notes on the Occurrence of Tintinnid Ciliates, and the Nasselarian Radiolarian Amphimelissa setosa of the Marine Microzooplankton, in the Chukchi Sea (Arctic Ocean) Sampled each August from 2011 to 2020
Fig. 1. Examples of the distinct sea ice conditions in August encountered through the 10 cruises. Color-coding indicates areas of sea ice coverage varying from 100% to 0 %, or open water. The year 2012 was a record year of low sea ice extent while 2020 was year of sea ice extent more common in recent years.
Fig. 4 in Notes on the Occurrence of Tintinnid Ciliates, and the Nasselarian Radiolarian Amphimelissa setosa of the Marine Microzooplankton, in the Chukchi Sea (Arctic Ocean) Sampled each August from 2011 to 2020
Fig. 4. The distribution of lorica oral diameters (LOD) of the tintinnid species found over 10 years of sampling. The LOD of a species is related positively to the diameter of the preferred prey size, about 25% of the LOD. Note that the most common LODs are 19–30 µm and 35–42 µm, suggesting most species feed on small prey (5–10 µm diameter). Note also that excluding species found only once and species suspected to be morphological variants of another species (see Table 2) yields few changes in the distribution.
Volatile organic compounds (VOIs) in seawater and sediment pore water collected in Funka Bay and Bering and Chukchi Seas
<p>The data of volatile organic compounds (VOIs) in seawater and sediment pore water collected in the Funka Bay, Hokkaido, Japan, and the Bering and Chukchi Seas. Funka Bay's samples were collected in 2018-2019. Bering and Chukchi Seas' samples were collected in July of 2017 and 2018. The article entitled "Marine sediment as a likely source of methyl and ethyl iodides in subpolar and polar seas" by Ooki et al. published by Communications Earth & Environment used these datasets. The datasets are also provided as supplementary data1-4 in the article. Details of datasets are described in the article. Please cite this article when you use these datasets.</p>
Dissolved methane in the Chukchi Sea during 2017-2020
<p>Methane (CH<sub>4</sub>) is one of the important greenhouse gases. CH<sub>4</sub> dry mole fractions in the atmosphere have increased continuously since the onset of the industrial revolution, contributing to more than 20% of the anthropogenic radiative forcing in the lower atmosphere since 1750. In addition, the ice-covered parts of the Arctic are now known to be a reservoir of organic carbon, suggesting that the coastal areas in the Arctic may be a neglected but essential component of the global CH<sub>4</sub> budget.</p> <p>Seawater samples for CH<sub>4</sub> analysis were collected onboard R/V “Xuelong 1”, “Xuelong 2”, and “Xiangyanghong 3” during the 8-11th Chinese Arctic Research Expedition (CHINARE) to the Chukchi Sea during 2017-2020.</p> <p>1. Equipment:</p> <ul> <li>Name gas chromatography</li> <li>Model: Agilent 7890A</li> <li>Method: purge-and-trap</li> <li>Calibration: CH<sub>4</sub>:N<sub>2</sub> mixtures, China Institute of Metrology</li> </ul> <p>2 Sampling and analysis</p> <p>The samples were collected with a rosette water sampler equipped with Niskin bottles. Briefly, seawater was transferred to biochemical-oxygen-demand bottles (one for each depth), which were stored in the dark at 4 °C after adding 180 μL of saturated HgCl<sub>2</sub>.</p> <p>3 Location</p> <p>The Chukchi Sea.</p>
Table 2 in Acoustic documentation of temperate odontocetes in the Bering and Chukchi Seas
<p><i>Table 2.</i> Mean frequencies and standard deviation (kHz) of click and buzz peaks and notches classified as Risso’ s (Gg) or Pacific-white sided (Lo) dolphins on PALs as compared to the testing and training data sets of Soldeville <i>et al</i>. (2008).</p><table><tbody><tr><th></th><th>Peak No. Mean kHz (SD)</th><th>Notch No. Mean kHz (SD)</th></tr></tbody><tbody><tr><th></th><td>1</td><td>2</td><td>3</td><td>4</td><td>1</td><td>2</td><td>3</td></tr><tr><th>Soldevilla</th></tr><tr><th>training Gg</th><td>22.1(0.7)</td><td>25.6(0.7)</td><td>30.3(0.8)</td><td>39.0(0.8)</td><td>19.8(0.7)</td><td>27.5(0.9)</td><td>35.8(1.1)</td></tr><tr><th>Soldevilla</th></tr><tr><th>test Gg</th><td>22.4(0.8)</td><td>25.5(1.0)</td><td>30.5(1.1)</td><td>38.8(1.1)</td><td>19.6(1.3)</td><td>27.7(1.1)</td><td>35.9(1.2)</td></tr><tr><th>PAL Gg</th><td>21.3(1.2)</td><td>24.9(1.1)</td><td>31.1(1.4)</td><td>38.9(1.1)</td><td>19.9(1.3)</td><td>27.1(1.5)</td><td>34.6(1.6)</td></tr><tr><th>Soldevilla</th></tr><tr><th>training Lo</th><td>22.1(0.6)</td><td>26.7(1.0)</td><td>33.1(1.4)</td><td>37.3(1.1)</td><td>19.5(0.9)</td><td>24.5(0.8)</td><td>29.8(1.4)</td></tr><tr><th>Soldevilla</th></tr><tr><th>test Lo</th><td>22.2(0.6)</td><td>26.6(0.9)</td><td>33.7(1.4)</td><td>37.3(1.4)</td><td>19.0(1.1)</td><td>24.5(0.9)</td><td>29.7(1.4)</td></tr><tr><th>PAL Lo</th><td>21.5(0.6)</td><td>26.4(1.1)</td><td>32.9(1.1)</td><td>37.4(0.9)</td><td>19.3(0.9)</td><td>24.2(1.4)</td><td>29.8(1.4)</td></tr></tbody></table>
Table 1 in Acoustic documentation of temperate odontocetes in the Bering and Chukchi Seas
<p><i>Table 1.</i> Available data: a timeline of PALs deployed at four sites in the Bering and Chukchi Seas. “x” denotes data available for at least part of the year.</p><table><tbody><tr><th>Site</th><th>2007</th><th>2008</th><th>2009</th><th>2010</th><th>2011</th><th>2012</th><th>2013</th><th>2014</th><th>2015</th><th>2016</th><th>2017</th></tr></tbody><tbody><tr><th>M2</th><td></td><td>x</td><td>x</td><td>x</td><td>x</td><td>x</td><td>x</td><td></td><td></td><td>x</td><td>x</td></tr><tr><th>M5</th><td>x</td><td>x</td><td>x</td><td>x</td><td>x</td><td>x</td><td>x</td><td>x</td><td>x</td><td>x</td><td>x</td></tr><tr><th>M8</th><td></td><td></td><td></td><td></td><td></td><td>x</td><td>x</td><td></td><td></td><td></td><td></td></tr><tr><th>CH</th><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td>x</td><td>x</td></tr></tbody></table>
Summer marine fog distribution in the Chukchi–Beaufort Seas
Open the record for dataset details and reuse information.
Stable isotope differences of polar bears in the Southern Beaufort Sea and Chukchi Sea
<p>The life history, genetic, and habitat use differences between the 2 polar bear<strong> </strong>(Ursus maritimus) subpopulations in Alaska have been used to determine the geographic border separating them, but it has sparked a debate of the correct placement of the border for several years. Recently, the Southern Beaufort Sea (SBS) polar bear subpopulation has declined due to sea ice loss, while the Chukchi Sea (CS) subpopulation appears stable. To provide additional information about potential differences between the SBS and CS subpopulations, such as differences in prey sources, we used stable isotope analysis of carbon and nitrogen from bone collagen of polar bears in these 2 neighboring subpopulations. We analyzed polar bear bones (1954–2019) from 112 individuals. Our purpose was to determine if the SBS and CS subpopulations could be distinguished based on the stable isotope signatures of bone collagen. A difference greater than 1‰ in δ<sup>13</sup>C values suggests a change in carbon sources, such as nearshore to offshore, while a 3‰ change in δ<sup>15</sup>N values equates to a change of about 1 trophic level. Our study showed a significant difference in δ<sup>13</sup>C values (P ≤ 0.001), but not δ<sup>15</sup>N values (P = 0.654) between the CS (−13.0±0.3‰ and 22.0±0.9‰, respectively) and SBS bears (−14.7±1.3‰ and 22.2±1.0‰, respectively). Our findings indicate that the 2 subpopulations are consuming similar high trophic level prey, while feeding in ecosystems with different δ<sup>13</sup>C baselines. We performed a logistic regression analysis (LR) using δ<sup>13</sup>C and δ<sup>15</sup>N values of the polar bears to predict their placement into these 2 subpopulations. Using Icy Cape, AK as the geographical boundary, the LR correctly placed polar bears in their respective subpopulations 82% of the time. Overall accuracy of placement changed to 84% when using the current geographical boundary at Utqiaġvik, AK. Samples collected from the Wainwright, AK region were predicted as 58% CS and 42% SBS polar bears. This suggests that the area between Wainwright and Icy Cape is a polar bear mixing zone that includes bears from both subpopulations. Bone collagen has a long-term, potentially life-long, stable isotope turnover rate, and our findings could be used to determine the association of harvested polar bears to Alaska subpopulations, thus aiding in transboundary harvest quota management.</p>
Subspecies and Distribution. O.r.rosmarusLinnaeus,1758—NCanada(HudsonBay)toWGreenlandanddiscon-tinuouslyfromEGreenlandtoSvalbardandNRussia(FranzJosefLandandKaraSea);occasionallyreportedinIcelandandstragglersinWEuropeStotheBayofBiscay. O. r. divergens Illiger, 1815 — Laptev Sea off N Russia, Bering and Chukchi seas in N Russia and Alaska; vagrant individuals reported S to New England, USA. in Odobenidae
Subspecies and Distribution. O.r.rosmarusLinnaeus,1758—NCanada(HudsonBay)toWGreenlandanddiscon-tinuouslyfromEGreenlandtoSvalbardandNRussia(FranzJosefLandandKaraSea);occasionallyreportedinIcelandandstragglersinWEuropeStotheBayofBiscay. O. r. divergens Illiger, 1815 — Laptev Sea off N Russia, Bering and Chukchi seas in N Russia and Alaska; vagrant individuals reported S to New England, USA.
Distribution. The most widely distributed of all cetaceans, found in almost any marine environment from the Equator to both polar zones, including semi-enclosed seas such as the Mediterranean Sea, Red Sea, Persian Gulf, Gulf of California, Sea of Okhotsk, Yellow Sea, Sea ofJapan, Chukchi Sea, Beaufort Sea, Gulf of Saint Lawrence, and Ross Sea. in Delphinidae
Distribution. The most widely distributed of all cetaceans, found in almost any marine environment from the Equator to both polar zones, including semi-enclosed seas such as the Mediterranean Sea, Red Sea, Persian Gulf, Gulf of California, Sea of Okhotsk, Yellow Sea, Sea ofJapan, Chukchi Sea, Beaufort Sea, Gulf of Saint Lawrence, and Ross Sea.
FIGURE 11 in Four new free-living marine nematode species (Sabatieria) from the Chukchi Sea
FIGURE 11. Sabatieria multisupplementia sp. n. A: lateral view of male anterior part; B: lateral view of male tail and spicule; C: lateral view of male head; D: lateral view of pre-cloacal supplements. Scale bar: A, B = 25 µm; C =20 µm; D =50 µm.
FIGURE 10 in Four new free-living marine nematode species (Sabatieria) from the Chukchi Sea
FIGURE 10. Sabatieria maJor sp. n. Male: (A) lateral surface view of head region (amphideal fovea; cephalic setae); (D) copulatory apparatus; (E) pre-cloacal supplements; (I) spicule and tail. Female: (B) lateral surface view of head region (amphideal fovea; cephalic setae); (C) lateral surface view of head region (buccal cavity); (F) vulva region; (G) lateral differentiation (anterior body); (H) rectal region and tail. Scale bar = 10 µm.
FIGURE 8 in Four new free-living marine nematode species (Sabatieria) from the Chukchi Sea
FIGURE 8. Sabatieria maJor sp. n. A: lateral view of male anterior part; B: lateral view of male tail and spicule; C: lateral view of female anterior part; D: lateral view of female tail. Scale bar = 20 µm.
FIGURE 7 in Four new free-living marine nematode species (Sabatieria) from the Chukchi Sea
FIGURE 7. Sabatieria parvamphis sp. n. Male: (A) lateral surface view of head region (amphideal fovea; cephalic setae); (B) lateral surface view of head region (buccal cavity); (C) pre-cloacal supplements; (D, E) copulatory apparatus; (G) lateral differentiation (anterior body); (H) spicule and tail. Female: (F) vulva region; (I) rectal region and tail. Scale bar = 10 µm.
FIGURE 5 in Four new free-living marine nematode species (Sabatieria) from the Chukchi Sea
FIGURE 5. Sabatieria parvamphis sp. n. A: lateral view of male anterior part; B: lateral view of male tail and spicule; C: lateral view of female anterior part; D: lateral view of female tail. Scale bar = 20 µm.
FIGURE 4 in Four new free-living marine nematode species (Sabatieria) from the Chukchi Sea
FIGURE 4. Sabatieria chukchensis sp. n. Male: (A) lateral surface view of head region (amphideal fovea; cephalic setae); (B) lateral surface view of head region (buccal cavity); (C) two pairs of cervical setae and lateral differentiation; (E) copulatory apparatus; (F) pre-cloacal supplements; (I) spicule and tail. Female: (D) lateral surface view of head region; (G) vulva region; (H) rectal region and tail. Scale bar = 10 µm.
FIGURE 2 in Four new free-living marine nematode species (Sabatieria) from the Chukchi Sea
FIGURE 2. Sabatieria chukchensis sp. n. A: lateral view of male anterior part; B: lateral view of male tail and spicule; C: lateral view of female head; D: lateral view of female tail. Scale bar = 20 µm.
FIGURE 9 in Four new free-living marine nematode species (Sabatieria) from the Chukchi Sea
FIGURE 9. Sabatieria maJor sp. n. A: lateral view of male head; B: lateral view of female reproductive system. Scale bar: A = 20 µm; B = 100 µm.
FIGURE 6 in Four new free-living marine nematode species (Sabatieria) from the Chukchi Sea
FIGURE 6. Sabatieria parvamphis sp. n. A: lateral view of male head; B: lateral view of copulatory apparatus; C: lateral view of female reproductive system. Scale bar: A, B = 20 µm; C = 100 µm.
FIGURE 3 in Four new free-living marine nematode species (Sabatieria) from the Chukchi Sea
FIGURE 3. Sabatieria chukchensis sp. n. A: lateral view of male head; B: lateral view of copulatory apparatus; C: lateral view of female reproductive system. Scale bar: A, B = 20 µm; C = 100 µm.
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.