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274 results for “East China Sea”
A neural network-based estimate of the seasonal variability of total alkalinity in the East China Sea shelf
<p>In order to estimate the seasonal variability of total alkalinity in the ECS shelf, an artificial neural network (ANN) model was developed using 5 cruise datasets from 2008 to 2018. The model used temperature, salinity, and dissolved oxygen to estimate A<sub>T</sub> with a root-mean-square error of ~7 umol kg<sup>-1</sup>, and was applied to fill missing alkalinity data for 8 cruises during 2013-2016. In addition, monthly water column A<sub>T</sub> for the period 2000-2016 was also obtained passing temperature, salinity, and dissolved oxygen from the Changjiang Biology Finite-Volume Coastal Ocean Model (FVCOM) Data. Spatial distributions, seasonal cycles and correlations of surface A<sub>T</sub> indicated that the seasonal fluctuation of the Changjiang River discharge is the major factor affecting seasonal variation of surface total alkalinity in the ECS shelf. The largest seasonal fluctuation of surface total alkalinity was found on the inner shelf near the Changjiang Estuary.</p>
Retrieving monthly and interannual pHT in the East China Sea shelf using an artificial neural network: ANN-pHT-v1
<p><br> The reliability of the artificial neural network model was evaluated by independent sampled data from 3 cruises in 2018.</p> <p>Monthly water column pHT for the period 2000-2016 was obtained passing T, S, DO, N, P, and Si from the Finite-Volume Coastal Ocean Model with the European Regional Sea Ecosystem Model through the artificial neural network. The spatiotemporal resolution of monthly pHT is 1-10 km in the horizontal, 10 depth levels in the vertical, and 12 months. Seasonal pHT dynamics in the East China Sea shelf can be primarily attributed to temperature changes and the shifting balance of production and respiration processes.</p>
Shifting roles of the East China Sea in the phylogeography of red nanmu in East Asia
<p>This dataset contains one README file and two raw data files on the distribution and genetic data described in the paper: Jiang et al. (2021) Shifting roles of the East China Sea in the phylogeography of <em>Machilus thunbergii</em> (Lauraceae) in East Asia. Journal of Biogeography.</p> <p>Ecological niche modeling was employed to predict the potential distribution of <em>M. thunbergii</em> during the Last Glacial Maximum (LGM) and the last interglacial period. Nuclear microsatellite and chloroplast markers were used to reveal the phylogeographic pattern and infer the population history of 33 <em>M. thunbergii</em> populations.</p> <p>The ecological niche models suggested that the ECS provided potentially suitable habitats for <em>M. thunbergii</em> during the LGM. A sharp change in cpDNA haplotypes was found along the eastern China coasts, while microsatellites revealed a clinal pattern for genetic composition from eastern China to central Japan. The divergent lineages formed an admixture on the Zhoushan Archipelago of China and Kyushu Island of Japan. The estimated divergent and admixture times were <em>c</em>. 68 kyr and <em>c</em>. 15 kyr, corresponding to the periods where there were rising sea levels after the MIS4 glaciation and falling sea levels during the LGM, respectively. </p> <p><em>Machilus thunbergii </em>probably underwent alternating population isolation during interglacial periods and connection during glacial maxima across the ECS, but such periodicity of isolation and connection seems not to have promoted diversification as suggested by the species pump hypothesis. Incipient divergence has been periodically wiped out due to frequent coalescence, rendering the ECS more like a "species vacuum", particularly for species with relatively long generation lengths.</p>
𝛅11B and B/Ca measurements of the modern and fossil Porites corals from the east coast Hainan Island in the northern South China Sea
<p>This datasets contain the 𝛅<sup>11</sup>B and B/Ca determinations of three modern <em>Porites</em> corals and four ancient <em>Porites</em> collected from the east coast of Hainan Island in the northern South China Sea. The measurements of skeletal boron isotopes were carried out with a MC-ICP-MS, and the B/Ca was determined by ICP-MS. </p>
Nitrous oxide in the East China Sea in 2015
<p>Nitrous oxide (N<sub>2</sub>O) is a powerful greenhouse gas, of which the global warming potential per mole is nearly 300 times more effective than that of carbon oxide. The coastal seas, which influenced by anthropogenic perturbations, are identified as potent sources of N<sub>2</sub>O. To further understand the N<sub>2</sub>O biogeochemical dynamics in the coastal oxic waters, we measured the N and O isotope compositions and concentrations of dissolved N<sub>2</sub>O, as well as other biological parameters (O<sub>2</sub>, NH<sub>4</sub><sup>+</sup>, NO<sub>2</sub><sup>-</sup>, and NO<sub>3</sub><sup>-</sup>) and hydroxylamine (NH<sub>2</sub>OH) concentrations in the East China Sea, a marginal sea of the western Pacific Ocean, in 2015.</p>
Nitrous oxide and Hydroxylamine in the East China Sea in 2015
<p>The first analyses of N<sub>2</sub>O isotopocule signatures in the East China Sea (ECS) are presented, along with hydroxylamine (NH<sub>2</sub>OH) and N<sub>2</sub>O concentrations, to clarify the dominant N<sub>2</sub>O production processes in the coastal water. In the ECS in October 2015, N<sub>2</sub>O ranged from 6.3 to 33.1 nmol L<sup>-1</sup>, equivalent to 99% – 251% in saturation, leading to the air-sea fluxes of 1.6 – 10.5 μmol m<sup>-2 </sup>d<sup>-1</sup> (4.8±2.5 μmol m<sup>-2 </sup>d<sup>-1</sup>) using the W2014 formula. The coexistence of high levels of NH<sub>4</sub><sup>+</sup>, NH<sub>2</sub>OH, and NO<sub>2</sub><sup>-</sup> indicated the potential for nitrification and/or hybrid N<sub>2</sub>O formation. In the shallow water (< 300 m), the concentration (~9.3 nmol L<sup>-1</sup>), δ<sup>15</sup>N<sup>bulk</sup>-N<sub>2</sub>O (~6.8‰), δ<sup>18</sup>O-N<sub>2</sub>O (~45.1‰), and <sup>15</sup>N site preference (SP, ~14.8‰) of N<sub>2</sub>O were close to those isotopic signatures in atmospheric N<sub>2</sub>O; whereas those values in the deep water increased downward, reaching their maxima of 33.1 nmol L<sup>-1</sup>, 8.6‰, 54.7‰, and 18.7‰, respectively.</p>
Shifting roles of the East China Sea in the phylogeography of red nanmu in East Asia
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Latitudinal cline in the foraging dichotomy of loggerhead sea turtles reveals the importance of East China Sea for priority conservation
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Data from: Nutrient sources, phytoplankton blooms, and hypoxia along the Chinese coast in the East China Sea: Insight from summer 2014
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Reoxygenation in the East China Sea
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Reservoir constructions reduced half the organic carbon burial in the East China Sea
<p>Data Set S1. Supplementary Data-OC properties</p> <p>Data Set S2. Supplementary Data-Surface sediment grain size</p>
Biogeographic divides in East Asia delineated by the three-step landforms of China and the East China Sea: insights from phylogeographical breaks of Kerria japonica
<p><span><b>Aim: </b>East Asia exhibits complex geomorphological and climatic characteristics. The aim </span>of this study is to test whether the biogeographic divides present along the so-called three-step landforms of China and the East China Sea (ECS), and provide insight into the evolution the East Asian Flora (EAF) with respect to Hengduan Mountains, Central China and East China.</p> <p><span><span><b>Location:</b> East Asia</span></span></p> <p><span><span><b>Taxon: </b><i>Kerria japonica</i>, a deciduous shrub distributed in subtropical mixed evergreen and deciduous broadleaved forests of East Asia.</span></span></p> <p><span><b>Methods: </b>Three chloroplast DNA (cpDNA) regions and 15 nuclear microsatellite (nSSR) loci were sequenced/genotyped in 576/450 individuals. We performed phylogeographical analyses to assess genetic structure, historical gene flow and demographic history. Climate factors were examined to identify their effects on the phylogeographical breaks. Time</span>-calibrated phylogenetic trees and ancestral range reconstruction<span> were used to infer biogeographic history. Potential habitats at present and in the past (LIG, LGM) were identified using ecological niche modelling (ENM).</span></p> <p><span><b>Results: </b>Distinct phylogeographical breaks were found along the ECS and the edges of the three-step landforms of China. Low historical gene flow and significant climatic differences were detected in each pair of adjacent regions. Compared with the quite stable distribution range on the Chinese mainland, Japanese populations had experienced obvious northward expansion after the LGM in response to Quaternary climate change.</span></p> <p><span><b>Main conclusions: </b><i>K. japonica</i> has a complex biogeographic history, with a Mid-Miocene origin in North America and subsequent migration into East Asia via the Bering land bridge. The onset of intra-specific diversification was probably associated with the Asian monsoon intensifications, while the CJK land bridge facilitated the formation of the Japan lineage (6.78 Ma). The spatiotemporal population differentiation in Chinese mainland demonstrates the significant role of biogeographic divides delineated by three-step landforms of China; and provides clues to help understand the floristic regionalization and evolutionary history of plant diversity in East Asia, especially with respect to the Hengduan Mountains, Central China and East China.</span></p>
FIGURE 5. Longipedis fragilis n in Tanaidacea (Crustacea: Peracarida) from Japan. I. Apseudomorpha from the East China Sea, Seto Inland Sea, and Nansei Islands
FIGURE 5. Longipedis fragilis n. sp. A, holotype, male, dorsal view, scale bar = 0.1 mm. B, same, lateral view; C, antennule; D, antenna; d1 antenna peduncle; E, labrum; F, left mandible; G, right mandible; H, labium; I, maxillule; J, maxilla; K, maxilliped; L, epignath. Scale bars antennae = 0.2 mm, scale bars mouthparts = 0.4 mm.
FIGURE 6. Longipedis fragilis n in Tanaidacea (Crustacea: Peracarida) from Japan. I. Apseudomorpha from the East China Sea, Seto Inland Sea, and Nansei Islands
FIGURE 6. Longipedis fragilis n. sp. A, pereopod 1; B, pereopod 2; C, pereopod 3; D, pereopod 4; E, pereopod 5; F, pereopod 6; G, cheliped; H, pleopod. Scale bar = 0.2 mm.
FIGURE 3. Hoplomachus toyoshious n in Tanaidacea (Crustacea: Peracarida) from Japan. I. Apseudomorpha from the East China Sea, Seto Inland Sea, and Nansei Islands
FIGURE 3. Hoplomachus toyoshious n. sp. A, left mandible; B, right mandible; C, maxillule; D, epignath; E, maxilliped; F, cheliped. Scale bars = 0.2 mm.
FIGURE 4. Hoplomachus toyoshious n in Tanaidacea (Crustacea: Peracarida) from Japan. I. Apseudomorpha from the East China Sea, Seto Inland Sea, and Nansei Islands
FIGURE 4. Hoplomachus toyoshious n. sp. A, pereopod 1; B, pereopod 2; C, pereopod 3; D, pereopod 4; d1, same, dactylus; E, pereopod 5; F, pereopod 6. Scale bars = 0.2 mm.
FIGURE 2. Hoplomachus toyoshious n in Tanaidacea (Crustacea: Peracarida) from Japan. I. Apseudomorpha from the East China Sea, Seto Inland Sea, and Nansei Islands
FIGURE 2. Hoplomachus toyoshious n. sp. A, holotype, male, dorsal view, scale bar = 0.5 mm. B, Same, lateral view; C, antennule; D, antenna; E, labrum; F, labium; G, pleopod.
FIGURE 20 in Tanaidacea (Crustacea: Peracarida) from Japan. II. Tanaidomorpha from the East China Sea, the West Pacific Ocean and the Nansei Islands
FIGURE 20. Chauliopleona dentata Dojiri & Sieg, 1997, female (from type locality). A, dorsal view; B, later view C, antennule; D, antenna; E, labrum, lateral view; E1, same dorsal view; F, left mandible; G, right mandible; H, labium; I, maxillule; J, maxilla; K, maxilliped. Scale bar mouthparts = 0.2. mm, other appendages scale bar = 0.5 mm.
FIGURE 15. Tanaella kommritzia n in Tanaidacea (Crustacea: Peracarida) from Japan. II. Tanaidomorpha from the East China Sea, the West Pacific Ocean and the Nansei Islands
FIGURE 15. Tanaella kommritzia n. sp. A, paratype, dorsal view, scale bar = 0.5 mm. B, maxilliped; C, cheliped. Scale bar = 0.2 mm.
FIGURE 21 in Tanaidacea (Crustacea: Peracarida) from Japan. II. Tanaidomorpha from the East China Sea, the West Pacific Ocean and the Nansei Islands
FIGURE 21. Chauliopleona dentata Dojiri & Sieg, 1997, female (from type locality). A, cheliped; B, pereopod 1; C, pereopod 2; D, pereopod 3; E, pereopod 4; F, pereopod 5; G, pereopod 6; H, pleopod; I, uropod. Scale bar = 0.2 mm.
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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)
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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.