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89 results for “Chukchi Sea”
Near-shore bathymetry for Elson Lagoon and Chukchi Sea, Barrow Region, northern Alaska
This dataset includes bathymetric sounding points for the near-shore regions of the Chukchi Sea and Elson Lagoon (Beaufort Sea) for the Barrow region of northern Alaska, along with a bathymetric surface interpolated from these sounding points. Bathymetric surveying was conducted during July and August of 2015 with high-resolution dGPS and single beam sonar. Surveys were conducted on an inflatable Achilles boat with the dGPS antenna and echo sounder placed (on the same pole) off to one side of the boat. dGPS and sonar data were logged on different platforms that were then time-synced later. Sounding points follow the path of the survey boat. At any one sounding point; water depth, bottom elevation, bottom ellipsoid height among other fields are given. Sounding point depths were corrected for salinity and temperature. The average horizontal precision for any one sounding point is 2.3 cm. The average vertical precision for any one sounding point is 4.6 cm (dGPS uncertainty) plus 0.1% of depth (sonar manufacturers stated accuracy). The 10m resolution interpolated surface was created with the Topo to Raster tool within the 3D Analyst license for ArcGIS for Desktop. Pixel values reflect water depth in meters. Related datasets include: recent digital shorelines from dGPS survey, long-term shorelines digitized from imagery and results of coastal change analysis (annual and long-term rates of erosion or accretion). This bathymetric data may be of interest to land managers, scientist and engineers for modeling storm surge effects and coastal erosion. This dataset was collected as part of the Barrow Area Information Database (BAID, https://barrowmapped.org) and was originally made available on the BAID project website. In 2021/2022 the dataset was edited in metadata only and repackaged for archival on the Environmental Data Initiative repository by the Beaufort Lagoon Ecosystems LTER.
Water Body Checklists 2019: Chukchi Sea Species List
Species checklists created using effechecka and modified polygons from IHO. The polygons were reduced in resolution.<p></p>List of species collected from the Chukchi Sea using effechecka and a modified polygon from the International Hydrographic Association. A filter was applied (based on data from WoRMS) to remove all non-marine taxa.
Water Body Checklists: Chukchi Sea Species List
Species checklists created using effechecka and modified polygons from IHO. The polygons were reduced in resolution.<p></p>List of species collected from the Chukchi Sea using effechecka and a modified polygon from the International Hydrographic Association. A filter was applied (based on data from WoRMS) to remove all non-marine taxa.
ADCP Data from the Chukchi Sea, Arctic Ocean, acquired during the R/V Marcus G. Langseth expedition MGL1112
<p>This is a processed acoustic Doppler current profiler (ADCP) dataset, provided by Andrew Frambach and Jules Hummon, acquired in September 2011 during the MGL1112 cruise at Chukchi Borderland, Arctic Ocean.</p>
Figure 4 in Two new free-living nematode species of Setosabatieria (Comesomatidea) from the East China Sea and the Chukchi Sea
Figure 4. Setosabatieria major sp. nov. (A) lateral view of male head end, showing cervical setae; (B) lateral view of female head end, showing female amphidial fovea; (C) lateral view of female vulva region, showing vulva and eggs; (D) lateral view of male tail region. Scale bars: A = 25 µm; B = 10 µm; C, D = 50 µm.
Fig. 9 in Microzooplankton in a Warming Arctic: A Comparison of Tintinnids and Radiolarians from Summer 2011 and 2012 in the Chukchi Sea
Fig. 9. Fecal pellet containing loricas of Ptychocylis urnula (arrows) found in material from the 2012 Station 40. The pellet is possibly from a large calanoid copepod according to J. T. Turner (University of Massachusetts Dartmouth).
Fig. 6 in Microzooplankton in a Warming Arctic: A Comparison of Tintinnids and Radiolarians from Summer 2011 and 2012 in the Chukchi Sea
Fig. 6. The dominant species of tintinnids and radiolaria of the Chukchi Sea: a – Ptychocylis urnula; b – Salpingella acuminata; c – Acanthostomella norvegica; d – Salpingella faurei; e – Leprotintinnus pelludicus; f – Tintinnopsis acuminata; g – Amphimelissa setosa. The roman numerals denote the rank abundance of the top 4 species in the 2011 samples and the arabic numerals the rank abundance of the top 4 species in the 2012 samples. Note that the difference in the morphologies of the most abundant species in 2011 'I', P. urnula compared to the dominant species in samples from the ice free year of 2012 "1", S. faurei. See Fig. 7 for the relative abundance of all the tintinnid species.
Fig. 5 in Microzooplankton in a Warming Arctic: A Comparison of Tintinnids and Radiolarians from Summer 2011 and 2012 in the Chukchi Sea
Fig. 5. Scatterplot of chlorophyll values (average integrated concentrations 0–100 m depth stratum), total vs. the fraction ≤ 20 µm. While the portion of the chlorophyll crop in 2012, without sea ice, was lower, the absolute concentrations of 'nano-pico-sized' phytoplankton was substantially greater.
Fig. 4 in Microzooplankton in a Warming Arctic: A Comparison of Tintinnids and Radiolarians from Summer 2011 and 2012 in the Chukchi Sea
Fig. 4. Scatterplots of tintinnid and radiolarian abundances as a function of chlorophyll a concentration (values per liter, integrated through the 0–100 m depth segment of the water column) in the samples from 2011 and 2012. The symbols denote different concentrations of sea ice (see Figs. 2 and 3).
Fig. 3 in Microzooplankton in a Warming Arctic: A Comparison of Tintinnids and Radiolarians from Summer 2011 and 2012 in the Chukchi Sea
Fig. 3. Spatial distribution of concentrations of chlorophyll a, tintinnid and radiolarian abundances (values per liter, integrated through the 0–100 m depth segment of the water column) in August 2011 and 2012. Station numbers are shown in Fig. 1 and exact values are given in Table 1.
Fig. 2 in Microzooplankton in a Warming Arctic: A Comparison of Tintinnids and Radiolarians from Summer 2011 and 2012 in the Chukchi Sea
Fig. 2. Station locations and sea ice concentrations (fraction surface covered) in August 2011 and August 2012. For exact locations and sampling dates see Table 1.
Fig. 1 in Microzooplankton in a Warming Arctic: A Comparison of Tintinnids and Radiolarians from Summer 2011 and 2012 in the Chukchi Sea
Fig. 1. Sea ice data for the month of August for 1991 to 2012. Data from the National Ice Data Center (nsdic.org). Note that sea ice was lower in 2012 than the previous record low of 2007.
Fig. 7 in Opisthobranch molluscs of «Cylichna occulta group» (Gastropoda: Opisthobranchia: Cylichnidae) from the Chukchi Sea and adjacent waters
Fig. 7. Cylichnoides scalptus: Kara Sea, 1948: radula (A–F), shell sculpture (G–J), (B–D – rachidian tooth, denticles of the internal lateral tooth, E – denticles of the internal lateral tooth, F – outer lateral teeth). Cylichnoides densistriatus (K, L): radula (K), shell sculpture (L). Scale bar: A – 100 µm; B – 40 µm; C, F, K – 50 µm; D – 30 µm; E – 10 µm; G – 500 µm; H, I, L – 200 µm; J – 400 µm.
Fig. 6 in Opisthobranch molluscs of «Cylichna occulta group» (Gastropoda: Opisthobranchia: Cylichnidae) from the Chukchi Sea and adjacent waters
Fig. 6. Cylichnoides scalptus, shell: Kara Sea, «Fyodor Litke», station 183 (A–E); Barents Sea, R/V «Persey», station 862 (F, G) and station 866 (H) (ventral view: A – 10.2 mm, B – 9.9 mm, C – 9.5 mm, D – 5.3 mm, F – 5.0 mm, H – 10 mm; apical view: E, G). Cylichnoides densistriatus, shell: Kotelny Isl., New Siberian Islands, 1903 (I, J); Laptev Sea, Kondrat'evsky Il., 1973 (K, L), ventral view (I – 5.6 mm, L – 4 mm), apical view (J, K). Scale bar: E, G, J, K – 1.0 mm.
Fig. 4 in Opisthobranch molluscs of «Cylichna occulta group» (Gastropoda: Opisthobranchia: Cylichnidae) from the Chukchi Sea and adjacent waters
Fig. 4. Cylichnoides occultus, shell: Chukchi Sea, Wrangel Isl., «Fyodor Litke», station 44 (A – 8.5 mm, ventral view); Wrangel Isl., Rodzhers Bay, station 4 (8.0 mm – B, 7.0 mm – C, ventral view); Greenland, identified previously as Cylichna insculpta (=Cylichna reinhardti) (8.0 mm – E, 6.5 mm – F); «Vega» expedition, 1876 (H – 4.0 mm, G – 5.0 mm, ventral view and D – apical view); Frantz Joseph Land (I – 7.2 mm, ventral view and J – apical view); K, L – Chukchi Sea, De Long Strait (K – apical view and L – 8.0 mm, ventral view); Cylichnoides sp. 1: «Fyodor Litke», station 44, Chukchi Sea, Wrangel Isl. (M – 7.8 mm).
Fig. 2 in Opisthobranch molluscs of «Cylichna occulta group» (Gastropoda: Opisthobranchia: Cylichnidae) from the Chukchi Sea and adjacent waters
Fig. 2. Cylichnoides validus: radula (K), lateral teeth (A, B, D) and rachidian teeth (C, E, F, I); gizzard plate (J); shell sculpture (G, H); penis (L). A, I – Laptev sea, «Sadko», station 21; D, E, G, J – Chukchi sea, «Fyodor Litke», station 55; B, C, F, H, K – Chukchi sea, «Fyodor Litke», station 54; L – «Vega» expedition. Abbreviations: a – atrium, a.pr – additional prostate, pr – prostate, p.s – penial sheath. Scale bar: A, C, D, J – 50 µm; B, K – 100 µm; G, H – 200 µm; I – 40 µm; E, F – 10 µm; L – 0.5 mm.
Fig. 1 in Opisthobranch molluscs of «Cylichna occulta group» (Gastropoda: Opisthobranchia: Cylichnidae) from the Chukchi Sea and adjacent waters
Fig. 1. Cylichnoides validus, shell: syntypes of Cylichna insculpta var. valida, SMNH, ventral view (A, B); «Vega» expedition, 1878, no data, 7.5 mm, (ventral view – D); R/V «Persey», Barents Sea, station 150, 8.5 mm (ventral view – H); Chukchi Sea, «Rusalka»-2009, station 119 (apical view (C) and ventral view (E – 5 mm; F – 4 mm; G – 7 mm)); R/V «Ivan Kireev», station 9/42, Laptev Sea, ventral view, 7.5 mm (I); «Fyodor Litke», Chukchi Sea, station 54, ventral view, 9 mm (J); «Krasin», Chukchi Sea, station 44, ventral view, 7.8 mm (K); «Sadko», Laptev Sea, station 21, identified by G.P. Gorbunov as Cylichna insculpta, ventral view, 8.5 mm (L). Scale bar: C – 2 mm.
Fig. 3 in Opisthobranch molluscs of «Cylichna occulta group» (Gastropoda: Opisthobranchia: Cylichnidae) from the Chukchi Sea and adjacent waters
Fig. 3. Male copulatory system: Cylichnoides scalptus, Laptev Sea (A); Cylichnoides densistriatus, Russian Polar Expedition 1901–1903, no data (B); Cylichnoides occultus, Novaya Zemlya, Matochkin Strait (C); Cylichnoides validus, Laptev Sea (D) and Chukchi Sea, «Vega» expedition (dorsal view (E), ventral view (F)). Abbreviations: m – muscle fibers, p.f – folds of penial sheath, others like to Fig. 2. Scale bar: A, D–F – 1 mm; B, C – 0.5 mm.
Fig. 5 in Opisthobranch molluscs of «Cylichna occulta group» (Gastropoda: Opisthobranchia: Cylichnidae) from the Chukchi Sea and adjacent waters
Fig. 5. Cylichnoides occultus: radula (A – internal lateral teeth, B – F, H – rachidian teeth, G – outer lateral teeth) and shell sculpture (I) of the specimens collected in the Chukchi Sea, Wrangel Isl. (A–E, I – 1976; F–H – 1924). Cylichnoides sp. 1: radula (J, K, N – rachidian teeth, L – outer lateral teeth, M – internal lateral teeth) and shell sculpture (O). Scale bar: A, G, K, L – 50 µm; B, C, H – 30 µm; D, E, N – 10 µm; F, J – 20 µm; I – 200 µm; M – 40 µm; O – 100 µm.
Fig. 2 in New observations of Papulifères, putative ciliate cysts, from the plankton of the Chukchi Sea (Western Arctic Ocean) in August of 2023
Fig. 2. New forms of Papulifères found in samples from the Chukchi Sea region taken in August 2023. Forms A–D are new spindle-shaped Fusopsis forms, and Forms E–H are new spherical or oblong-shaped Sphaeropsis forms. Morphology notes and stations in which each were found along with the nominal concentrations found in the samples are given in Table 2.
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
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