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571 results for “Hydrothermal vents”
Mass spectrometry imaging of metabolites in symbiont containing tissues of Bathymodiolus sp. mussels from a hydrothermal vent
<p>Molecules in <em>Bathymodiolus </em>sp. tissue. Distribution of five lipid metabolites in symbiont containing gill tissues was visualized using MALDI mass spectrometry imaging (red: high amounts, blue: low amounts of lipids).</p>
Imaging of metabolites in symbiont containing tissues of Bathymodiolus sp. mussels from a hydrothermal vent
<p>MALDI-MS laser spot size directly influences the resolution of ion-maps generated by MALDI-MS imaging. Here we show from top to bottom different ion maps from <em>Bathymodiolus sp</em>. tissue acquired with decreasing spot sizes (laser spot diameter indicated in each image). Details relevant to the scale of the bacterial symbionts become visible by using laser settings under 10 µm spot size.</p>
Bulk geochemistry and in situ sulfur isotopes of hydrothermal deposits from the Lucky Strike vent field, Mid-Atlantic Ridge
<p>This is the dataset presented in the article <em>"Effects of substrate composition and subsurface fluid pathways on the geochemistry of seafloor hydrothermal deposits at the Lucky Strike Vent Field, Mid-Atlantic Ridge". </em>This includes Tables 1 and 2 found in the article as well as Tables S1 and S2 from the Supporting Information. Table 1 is the chemical composition of hydrothermal samples from the Lucky Strike vent field and Table S1 is an extended version of Table 1 that includes elements that were largely below the detection limit. Table 2 is the dataset for in situ sulfur isotope analyses of marcasite, pyrite, and chalcopyrite for samples from Lucky Strike. Table S2 is a compilation of modern seafloor hydrothermal sites that includes Lucky Strike, Menez Gwen, TAG, Snake Pit, Broken Spur, Rainbow, Logatchev, Beebe, Kairei, Yuhuang-1, and Daxi.</p>
Table 1 for Radiocarbon and Stable Carbon Isotope Constraints on the Propagation of Vent CO2 to Fluid in the Acidic Kueishantao Shallow Water Hydrothermal System
<p>This table contains radiocarbon (<sup>14</sup>C) and stable carbon isotope (<sup>13</sup>C) compositions of CO<sub>2</sub> in vent gas, dissolved inorganic carbon and particulates of hydrothermal fluid from Kueishantao shallow water hydrothermal system, offshore northeastern Taiwan.</p>
Dataset for the manuscript "Osmotic Energy Conversion in Serpentinite-Hosted Deep-Sea Hydrothermal Vents"
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Samples collected from the Von Damm and Piccard hydrothermal vent fields with the Hydrothermal Organic Geochemistry sampler.
<p><span>In January – February 2020, RV <em>Atlantis</em> cruise AT42-22 collected water, volatile, and fluid samples with ROV <em>Jason</em> from hydrothermal vent fields on the mid-Cayman rise. The expedition carried out 4 dives at the Von Damm field and 5 at the Piccard field. </span></p> <p><span>The first file is the</span><span> sampling logs and fluid geochemistry from the Hydrothermal Organic Geochemistry (HOG) sampler. It includes sampling locations, depths, heading, volumes, the highest temperature recorded during sampling, the average fluid temperature recorded during sampling, and pH. </span></p> <p><span>The second file is the measured geochemistry of the fluids, including concentrations of hydrogen sulfide, dissolved inorganic carbon, formate, phosphate, nitrate, nitrite, ammonia, and the stable isotope composition (</span><span><span>d</span></span><span>13C) of dissolved inorganic carbon.</span></p>
Unique Solid Phase Microextraction Sampler Reveals Distinctive Biogeochemical Profiles among Various Deep-Sea Hydrothermal Vents
<p>Repository data for the publication named "<strong>Unique Solid Phase Microextraction Sampler Reveals Distinctive Biogeochemical Profiles among Various Deep-Sea Hydrothermal Vents"</strong></p>
Census of Marine Life: Handbook of Deep-Sea Hydrothermal Vent Fauna
Desbruyeres, Segonzak & Bright, eds. 2006. HANDBOOK OF DEEP-SEA HYDROTHERMAL VENT FAUNA. Denisia 18:1-455 <p></p>http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.376.2677&rep=rep1&type=pdf . ChEss (Chemosynthitic Ecosystem Science) is a field project of the Census of Marine Life programme (CoML). The main aim of ChEss is to determine the biogeography of deep-water chemosynthetic ecosystems at a global scale and to understand the processes driving these ecosystems. ChEss addresses the main questions of CoML on diversity, abundance and distribution of marine species, focusing on deep-water reducing environments such as hydrothermal vents, cold seeps, whale falls, sunken wood and areas of low oxygen that intersect with continental margins and seamounts.
Data from: High environmental stress and productivity increase functional diversity along a deep-sea hydrothermal vent gradient
<p>Productivity and environmental stress are major drivers of multiple biodiversity facets and faunal community structure. Little is known on their interacting effects on early community assembly processes in the deep sea (>200 m), the largest environment on Earth. However, at hydrothermal vents productivity correlates, at least partially, with environmental stress. Here, we studied the colonization of rock substrata deployed along a deep-sea hydrothermal vent gradient at four sites with and without direct influence of vent fluids at 1700 m depth in the Lucky Strike vent field (Mid-Atlantic Ridge, MAR). We examined in detail the composition of faunal communities (>20 m) established after two years and evaluated species and functional patterns. We expected the stressful hydrothermal activity to (1) limit functional diversity and (2) filter for traits clustering functionally similar species. However, our observations did not support our hypotheses. On the contrary, our results show that hydrothermal activity enhanced functional diversity. Moreover, despite high species diversity, environmental conditions at surrounding sites appear to filter for specific traits, thereby reducing functional richness. In fact, diversity in ecological functions may relax the effect of competition allowing several species to coexist in high densities in the reduced space of the highly-productive vent habitats under direct fluid emissions. We suggest that the high productivity at fluid-influenced sites supports higher functional diversity and traits that are more energetically expensive. The presence of exclusive species and functional entities led to a high turnover between surrounding sites. As a result, some of these sites contributed more than expected to the total species and functional β-diversities. The observed faunal overlap and energy links (exported productivity) suggest that rather than operating as separate entities, habitats with and without influence of hydrothermal fluids may be considered as interconnected entities. Low functional richness and environmental filtering suggests that surrounding areas, with their very heterogeneous species and functional assemblages, may be especially vulnerable to environmental changes related to natural and anthropogenic impacts, including deep-sea mining.</p>
Figure 7. Stenothoe menezgweni, DIVA 2 in Stenothoidae (Crustacea: Amphipoda) of hydrothermal vents and surroundings on the Mid-Atlantic Ridge, Azores Triple Junction zone
Figure 7. Stenothoe menezgweni, DIVA 2, PL26, holotype female. Habitus of the holotype.
Data from: Comparative genomics reveals the dynamic evolutionary history of cement protein genes of barnacles from intertidal to deep-sea hydrothermal vents
<p><span>Thoracican barnacles are a diverse group of marine organisms for which the availability of genome assemblies is currently limited. In this study, we sequenced the genomes of two neolepadoid species </span><span>(<em>Ashinkailepas kermadecensis</em>,<em> Imbricaverruca yamaguchii</em>) </span><span>from hydrothermal vents, in addition to two intertidal species. Genome sizes ranged from 481.5 to 1054.6 Mb, with repetitive sequence contents of 21.2 to 50.7%. Concordance rates of orthologs and heterozygosity ratios were between 82.4 and 91.7% and between 1.1 and 2.6, respectively, indicating high genetic diversity and heterozygosity. Based on phylogenomic analyses, we revised the nomenclature of cement genes encoding cement proteins that are not homologous to any known proteins. The major cement gene, <em>CP100A</em>, was found in all thoracican species, including vent-associated neolepadoids, and was hypothesized to be essential for thoracican settlement. Duplicated genes, <em>CP100B</em> and <em>CP100C</em>, were found only in balanids, suggesting potential functional redundancy or acquisition of new functions associated with the calcareous base. An ancestor of <em>CP52 </em>genes was duplicated dynamically among lepadids, pollicipedids with multiple copies on a single scaffold, and balanids with multiple sequential repeats of the conserved regions, but no <em>CP52</em> genes were found in neolepadoids, providing insights into cement gene evolution among thoracican lineages. This study enhances our understanding of the adhesion mechanisms of thoracicans in underwater environments. The newly sequenced genomes provide opportunities for studying their evolution and ecology, shedding light on their adaptation to diverse marine environments, and contributing to our knowledge of barnacle biology with valuable genomic resources for further studies in this field.</span></p>
Data from: Comparative genomics reveals the dynamic evolutionary history of cement protein genes of barnacles from intertidal to deep-sea hydrothermal vents
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Data from: High environmental stress and productivity increase functional diversity along a deep-sea hydrothermal vent gradient
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Populations genomics of deep-sea hydrothermal vent copepod Stygiopontius lauensis: from raw fasta files to filtered vcf file
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FIGURE 8 in New sponge species from hydrothermal vent and cold seep sites off New Zealand
FIGURE 8. Protosuberites novaezelandiae sp. nov., holotype NIWA 32136, spicules: A, Large choanosomal tylostyle with a slightly sinuous shaft, unevenly thickened along the shaft, thicker in the upper half; B, Small ectosomal tylostyle with a straight shaft; C. Large choanosomal tylostyle with a well-developed, spherical head and slight development of the apex; D, Tylostyles in two size categories.
FIGURE 10 in New sponge species from hydrothermal vent and cold seep sites off New Zealand
FIGURE 10. Pseudosuberites thurberi sp. nov.: A. Preserved holotype NIWA 27044; B. Preserved paratype NIWA 32043; C. Preserved paratype NIWA 27043; D. Preserved paratype NIWA 27045.
FIGURE 5 in New sponge species from hydrothermal vent and cold seep sites off New Zealand
FIGURE 5. Haliclona (Halichoclona) sonnae sp. nov.: A. Encrusting, cushion-shaped specimens in situ (red arrows) intermingled with Haliclona (Soestella) battershilli sp. nov., at Southern vent field of the Calypso hydrothermal vent field (NIWA Stn KAH1004/8: image 1113; 37.688° S, 177.123° E, 190 m); B. Preserved holotype, NIWA 52859, showing cavernous interior and thick, flaky ectosome; C. Histological section of holotype showing the thick ectosome, dominated by an irregular, ladder-like reticulation, overlaid at the surface with a thin layer of paratangential oxeas. Also showing the highly cavernous subectosomal region separating the outer ectosome from the deeper choanosome; D. Histological section of the deep choanosome showing the loose, irregular, subisotropic to confused reticulation of oxeas in the choanosome, interrupted by large subdermal canals and spaces. Image in 4A captured by NIWA's DTIS (Deep Towed Imaging System) deployed from RV Kaharoa.
FIGURE 12 in New sponge species from hydrothermal vent and cold seep sites off New Zealand
FIGURE 12. Pseudosuberites thurberi sp. nov., holotype NIWA 27044, spicules: A, Choanosomal tylostyle, straight shafted; B, Choanosomal tylostyle, acutely bent in the upper proximal end of the spicule; C, Small, possibly ectosomal tylostyle; D, Choanosomal and ectosomal tylostyles of different lengths.
FIGURE 10. Turneroconcha magnifica n in A new genus Turneroconcha (Bivalvia: Vesicomyidae: Pliocardiinae) for the giant hydrothermal vent clam 'Calyptogena' magnifica
FIGURE 10. Turneroconcha magnifica n. comb. (Boss & Turner, 1980) in its natural habitat, Gulf of California, Alarcón Rise, 2309 m, RV Western Flyer, dive D754. A, usual epifaunal position of T. magnifica on bare basalts along crevices. B, unusual infaunal behaviour of T. magnifica in soft sediment. C, specimen with a protruding foot. D, temperature measurement in vicinity of an exhalant siphon of T. magnifica. Distance between red dots is 25 cm. Photo courtesy of MBARI with permission of R.C. Vrijenhoek.
FIGURE 9. Turneroconcha magnifica n in A new genus Turneroconcha (Bivalvia: Vesicomyidae: Pliocardiinae) for the giant hydrothermal vent clam 'Calyptogena' magnifica
FIGURE 9. Turneroconcha magnifica n. comb. (Boss & Turner, 1980), Scanning electron micrographs of anatomical details, RV Western Flyer, dive D754, L=36 mm (IORAS, BIV00036-2) (A–K). A–C, transverse sections of distal parts of inner demibranch in the medial area showing interlamellar septa and lateral view of filaments. D, transverse section of filaments and interlamellar septa consisting of two plates of bacteriocytes, fusion of neighbouring plates creating dorsal wall of tubule arrowed. E, abfrontal surface of filaments. F, G, abfrontal surface of filaments with interlamellar septa. H, lateral view of filament and distal part of interlamellar septum. I, interlamellar septum showing a fragment of a tubule. J, frontal surface of filaments. K, lateral view of filament. RV Western Flyer, dive D752, L=104 mm. L, spermatozoids. acr, acrosome; fi, gill filament; fms, free margin of interlamellar septum; frc, frontal cilia; ifj, interfilamental junction; ils, interlamellar septum; lfc, latero-frontal cilia; lc, lateral cilia; mi, mitochondria; tb, boundaries between separate tubules; tub, tubule. Scale bars: A–C, E–G, 200 µm; D, H–J, 50 µm; K, 20 µm; L, 1 µm.
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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
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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.