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782 results for “abyss”
FIGURE 6. Heterospio bathyala n in New species and records of Heterospio (Annelida, Longosomatidae) from continental shelf, slope and abyssal depths of the Atlantic Ocean, Pacific Ocean, Indian Ocean and adjacent seas
FIGURE 6. Heterospio bathyala n. sp. A, 13-setiger anterior fragment with dorsal tentacle attached; B, anterior end, left lateral view; C, anterior end, right lateral view; D, same, middle segments; E, anterior end, left lateral view with dorsal tentacle attached; F, bulbous posterior end, right lateral view. A–B paratype (USNM 1673082); C–D, paratype (USNM 1673080); E, paratype (USNM 1673081); F, (USNM 1673085). A–B, E stained with Shirlastain A; C–D stained with MG. C–D, arrows denote concentrations of MG.
FIGURE 13. Heterospio paulolanai n in New species and records of Heterospio (Annelida, Longosomatidae) from continental shelf, slope and abyssal depths of the Atlantic Ocean, Pacific Ocean, Indian Ocean and adjacent seas
FIGURE 13. Heterospio paulolanai n. sp. Holotype (MZUSP 5588): A, anterior end (setiger 1–10), dorsal view; B, anterior end (setiger 1–5), ventral view; C, neuropodial aristate spines, setiger 11; D, neuropodial capillary seta, setiger 11; E, neuropodial acicular spine, setiger 12; F, neuropodial subuluncinus, setiger 12.
FIGURE 3. Heterospio hartmanae n in New species and records of Heterospio (Annelida, Longosomatidae) from continental shelf, slope and abyssal depths of the Atlantic Ocean, Pacific Ocean, Indian Ocean and adjacent seas
FIGURE 3. Heterospio hartmanae n. sp. A, anterior end, dorsal view; B, anterior end, ventral view; C, anterior end, dorsal view; D, posterior end, left lateral view; E, hook from D; F, acicular spines from setiger 12. A–B, D–F, holotype (LACM-AHF Poly 13270); C, paratype (LACM-AHF Poly 13282).
FIGURE 2. Heterospio hartmanae n in New species and records of Heterospio (Annelida, Longosomatidae) from continental shelf, slope and abyssal depths of the Atlantic Ocean, Pacific Ocean, Indian Ocean and adjacent seas
FIGURE 2. Heterospio hartmanae n. sp. A, complete specimen; B, anterior fourth of A; C, posterior fourth of A with inset of hook (not to scale); D, anterior end, setigers 1–11, dorsal view; E, anterior end, setigers 1–10, dorsal view; F, G, acicular spines and capillaries from middle setigers. A–C, E (USNM 1667391); D, holotype (LACM-AHF Poly 13270); F–G (paratype, LACM-AHF Poly13279). A–E stained with Shirlastain A.
FIGURE 1. Heterospio longissima Ehlers, 1874. A in New species and records of Heterospio (Annelida, Longosomatidae) from continental shelf, slope and abyssal depths of the Atlantic Ocean, Pacific Ocean, Indian Ocean and adjacent seas
FIGURE 1. Heterospio longissima Ehlers, 1874. A, anterior end, right lateral view; B, anterior end, dorsal view. Redrawn from Ehlers (1875).
Figure 2. a–f. a, b, Zygophylax concinna. a, branch internodes with hydrothecae. b, hydrotheca. c, d in Bathyal and abyssal hydroids (Hydrozoa, Leptothecata) from southeastern Australia
Figure 2. a–f. a, b, Zygophylax concinna. a, branch internodes with hydrothecae. b, hydrotheca. c, d, Amphisbetia ramifera sp. nov. c, stem with subopposite hydrothecae and axillar hydrotheca. d, branch with opposite hydrothecae. e, f. Lytocarpia parvispiralis sp. nov. e, holotype colony. f, hydrothecae, lateral view.
Figure 1. a−g. a, b, Acryptolaria angulata. a, distal monosiphonic stem. b, hydrotheca. c–e, Cryptolarella abyssicola. c, monosiphonic branch with subalternate hydrothecae. d in Bathyal and abyssal hydroids (Hydrozoa, Leptothecata) from southeastern Australia
Figure 1. a−g. a, b, Acryptolaria angulata. a, distal monosiphonic stem. b, hydrotheca. c–e, Cryptolarella abyssicola. c, monosiphonic branch with subalternate hydrothecae. d, gonotheca with wrinkled abcauline wall and upturned margin. e, gonotheca with oblique margin. f, Hebella macroplana sp. nov., stolonal hydrotheca. g, Hebella sp., stolonal colony and pedicellate hydrotheca.
Figure 7 in Revision of the genera Meteoria and Parasciadonus (Bythitidae) with a new Atlantic, abyssal species of Meteoria
Figure 7. – Meteoria pauciradiatus, MNHN 1994-767, holotype, female, SL 47 mm. A: Drawing; B: Photo after 30 years of preservation.
Figure 5 in Revision of the genera Meteoria and Parasciadonus (Bythitidae) with a new Atlantic, abyssal species of Meteoria
Figure 5. – Meteoria erythrops, ZMUC P77544, male, SL 70 mm. Intromittent organ: a, anus; gh, genital hood (Robert Nielsen illust.)
Figure 2 in Revision of the genera Meteoria and Parasciadonus (Bythitidae) with a new Atlantic, abyssal species of Meteoria
Figure 2. – Meteoria erythrops, ZMH 25142, holotype, female, SL 63 mm. A: Drawing; B: Photo after 49 years of preservation.
Fig. 6 in Thoridae (Crustacea: Decapoda) can penetrate the Abyss: a new species of Lebbeus from the Sea of Okhotsk, representing the deepest record of the family
Fig. 6. Lebbeus sokhobio sp. nov., ♂ from st. 4-9 (paratype, SMF 51579), live coloration.
Data from: Dark ophiuroid biodiversity in a prospective abyssal mine field
The seafloor contains valuable mineral resources, including polymetallic (or manganese) nodules that form on offshore abyssal plains. The largest and most commercially attractive deposits are located in the Clarion Clipperton Fracture Zone (CCZ), in the eastern Pacific Ocean (EP) between Hawaii and Mexico, where testing of a mineral collection system is set to start soon [1]. The requirement to establish pre-mining environmental management plans has prompted numerous recent biodiversity and DNA barcoding surveys across these remote regions. Here we map DNA sequences from sampled ophiuroids (brittle-stars, including post-larvae) of the CCZ and Peru Basin onto a substantial tree-of-life to show unprecedented levels of abyssal ophiuroid phylogenetic diversity including at least three ancient (>70 my), previously unknown clades. While substantial dark (unobserved) biodiversity has been reported from various microbial meta-barcoding projects [2, 3], our data shows that we have considerably under-estimated the biodiversity of even the most conspicuous mega-faunal invertebrates [4] of the EP abyssal plain.
Supplementary Video: An End-to-End DNA Taxonomy Methodology for Benthic Biodiversity Survey in the Clarion-Clipperton Zone, Central Pacific Abyss
<p>Supplementary video for the article "<em>An End-to-End DNA Taxonomy Methodology for Benthic Biodiversity Survey in the Clarion-Clipperton Zone, Central Pacific Abyss</em>".</p>
Dataset of: Deconvolving feeding niches and strategies of abyssal holothurians from their stable isotope, amino acid, and fatty acid composition
Open the record for dataset details and reuse information.
Fig. 7 in Abyssal vent field habitats along plate margins in the Central Indian Ocean yield new species in the genus Anatoma (Vetigastropoda: Anatomidae)
Fig. 7. Radula of Anatoma declivis sp. nov., South-East Indian Ridge, INDEX19_127RO, (I19_Ma_78).
Compositional Data Analysis (CoDA) of Clinopyroxene from Abyssal Peridotites
<ol> <li> <p>Additional supporting information includes data, R script, and QGIS file supporting the main text:</p> <p><strong>CSV (Data Set)</strong></p> <ul> <li> <p>residual_abyssal_peridotites.csv: Compilations of residual abyssal peridotites (n = 1162) and depleted MORB-mantle (n = 1)</p> </li> <li> <p>residual_abyssal_peridotites_coda_results.csv: Filtered data and results of PCA and k-means clustering (n = 267)</p> </li> <li> <p>model_cpx.csv: Clinopyroxene compositions obtained by open-system melting model</p> </li> <li> <p>test.csv: csv file for testing new data<br> <br> <strong>R</strong></p> </li> <li> <p>abyssal_cpx_pca.Rproj</p> </li> <li> <p>coda.R: R script implemented in this study</p> </li> <li> <p>test_your_data.R: R script to test new data comparing to abyssal clinopyroxenes</p> <p>and modeled clinopyroxenes</p> <p><strong>QGIS</strong></p> </li> <li> <p>residual_abyssal_peridotites.qgz: QGIS using residual_abyssal_peridotites.csv and residual_abyssal_peridotites_coda_results.csv for Figure 1 and Figure S7</p> </li> <li> <p>color_etopo1_ice_low_modified.tiff: ETOPO1 is a 1 arc-minute global relief model of Earth's surface that integrates land topography and ocean bathymetry from NOAA</p> </li> </ul> </li> </ol> <p> </p> <p>2. Instruction</p> <p>We prepared an R script to compare new (your) clinopyroxene data with clinopyroxene from abyssal peridotites. New data will be plotted using the principal components derived from the natural clinopyroxene database presented in this paper.</p> <p>The procedure is as follows:</p> <p>1. add data below the second row in test.csv<br> * Do not change the file name<br> * Do not change the first row<br> * Add clinopyroxene data (10 elements) and its label replacing under 2nd row * Label of data can be sample name, lithology, locality etc.</p> <p>2. Open abyssal_cpx_pca.Rproj by R studio (double click) 3. Open test_your_data.R (double click)<br> 4. Implement test_your_data.R.</p> <p>To use test_your_data.R, first press cmd+A (ctrl+A) and press Run/cmd+enter (ctrl+enter).</p> <p>5. Results files<br> 5-1. abyssalcpx_vs_test.csv: PC1&PC2 values using abyssal clinopyroxene PC coordinates<br> 5-2. plot1.pdf: abyssal clinopyroxene (cluster) vs. test data plot<br> 5-3. plot2.pdf: modeled clinopyroxene vs. test data plot<br> 5-4. spider_cl1.pdf: PM-normalized trace elements patterns of cluster 1 from abyssal peridotites 5-5. spider_cl2.pdf: PM-normalized trace elements patterns of cluster 2 from abyssal peridotites 5-6. spider_cl3.pdf: PM-normalized trace elements patterns of cluster 3 from abyssal peridotites 5-7. spider_cl4.pdf: PM-normalized trace elements patterns of cluster 4 from abyssal peridotites 5-8. spider_test.pdf: PM-normalized trace elements patterns of new data (your data)<br> 5-9. plot3.pdf: Discrimination diagram for clinopyroxene trace elements compositions. PM normalized Sr/Nd ratio vs. Ce/Yb ratio of clinopyroxenes from abyssal peridotites vs. test data</p>
Data: Characterizing the sediment dynamics through in-situ measurements in the abyssal Manila Trench, northeast South China Sea
<p>Along the Manila Trench, a total of four moorings were deployed in <a name="OLE_LINK5"></a>September 2019 and recovered in August 2020. The field measurements in velocity and turbidity were resampled to create hourly dataset.</p>
Numerical model code, input files and output data for publication "Rapid mixing and exchange of deep-ocean waters in an abyssal boundary current"
<p>Contains numerical model data (code, input files, selected output, matlab diagnostic routines) to supplement publication ``Rapid mixing and exchange of deep-ocean waters in an abyssal boundary current'', by Naveiro Garabato and co-authors. All numerical model data, including any errors, is the responsibility of Sonya Legg. This data set will allow reproduction of simulations, and reproduction of diagnostics shown in plots in the above-referenced paper.</p>
Bacterial and archaeal communities in the Clarion-Clipperton Zone: comparison between adjacent seamount and abyssal plain communities
<p>This dataset contrasts microbial communities from abyssal plain and seamount samples, collected on the DeepCCZ cruise to the western Clarion-Clipperton Zone in May-June 2018. This cruise sampled paired plain and seamount sites in three Areas of Particular Environmental Interest (APEIs). Samples included CTD casts to collect overlying water and sediment cores and polymetallic nodules (only present on the plains in two APEIs) collected using an ROV.</p> <p>Genomic DNA was extracted from these samples; 16S rRNA genes were amplified using primers targeting the V4-V5 hypervariable regions (as recommended by Parada et al. 2016 doi: 10.1111/1462-2920.13023); and sequenced used PE250v2 chemistry on an Illumina MiSeq. Sequences were quality-controlled, clustered into amplicon sequence variants (ASVs) using DADA2 (Callahan et al. 2016 doi: 10.1038/nmeth.3869), and classified using Silva v138 (Quast et al. 2013 doi: 10.1093/nar/gks1219). Differential abundances between comparisons of interest were calculated using DESeq2 on unnormalized datasets following the authors' recommendations (Love et al. 2014 doi: 10.1186/s13059-014-0550-8). Raw sequences are archived with the Sequence Read Archive (https://www.ncbi.nlm.nih.gov/sra) under project code PRJNA660809.</p> <p>Datasets archived here include:</p> <p>1) DeepCCZ_topography_metadata.xlsx: sampling location and other collection metadata, as well as all available environmental data (e.g., inorganic nutrients, total organic carbon, cell abundance counts), for DNA samples archived in this dataset</p> <p>2) DeepCCZ_topography_unnormalized_counts.xlsx: quality-controlled but otherwise unprocessed ASV results, including sequences associated with each ASV</p> <p>3) DeepCCZ_topography_relabund_UniFrac_with3ums.xlsx: quality-controlled ASV results, subsampled to a lower read count that accommodates the lower-yield 3 µm filter size samples; this sheet includes both relative abundances and a weighted UniFrac distance matrix</p> <p>4) DeepCCZ_topography_relabund_UniFrac_no3ums.xlsx: quality-controlled ASV results, subsampled to a higher read count that excludes the lower-yield 3 µm filter size samples; this sheet includes both relative abundances and a weighted UniFrac distance matrix</p> <p>5) DeepCCZ_topography_DESeq_*.xlsx (7 files): a series of results from numerous DESeq2 tests (Love et al. 2014 doi: 10.1186/s13059-014-0550-8) to identify differentially abundant ASVs in different sample categories. Tests were run on non-subsampled counts, as recommended.</p> <p>6) DeepCCZ_topography_diversity_metrics.xlsx: ASV richness, Pielou's evenness, and Shannon diversity for both levels of subsampling</p> <p> </p> <p>Contact for questions about this dataset: Emma Wear, ekwear.oceans@gmail.com</p>
Raw data of Monte Carlo (MC) simulations of the transfer Cr flux during abyssal peridotites marine alteration
<p>Raw data of Monte Carlo (MC) simulations were performed, and this MC model is used to quantitatively assess the net transfer flux of Cr between abyssal peridotites and seawater. Given that there are large uncertainties in the parameters. Two thousand MC model runs were performed using randomly selected values of model variables.</p>
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Allen Brain Atlas
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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.