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46 results for “Sediment sampling”
Sediment trap Rhizaria flux from sediment trap samples collected aboard CCE LTER process cruises in the California Current system, 2011 - present.
The collection and enumeration of sinking rhizarian cells on CCE LTER Process cruises has been led by Mike Stukel since 2007. Sinking particles are collected in VERTEX-style particle interceptor traps (PIT) with an 8:1 aspect ratio, 70-mm diameter, and a baffle on top comprised of 13 smaller beveled tubes with a similar 8:1 aspect ratio. Typically 8-12 tubes were deployed with a formalin-brine for a duration of 2-5 days. After recovery, samples were immediately gravity filtered through a 47-mm, 200-μm mesh nitex filter and analyzed under a stereomicroscope. The two dominant taxa of giant rhizaria (Aulosphaeridae and Castanellidae) were then enumerated in each sample. We note, however, that at least two distinct morphotypes of Aulosphaeridae were seen in the sample (but analyzed together because they had similar size and shape) and several smaller rhizarian taxa were also noticed, but not quantified because they are likely not quantitatively captured by our 200-μm filter. Mean and standard deviation of samples from different tubes are reported for each depth. For more details please see Stukel et al. (2013) or Biard et al. (submitted). Biard, T., J. W. Krause, M. R. Stukel and M. D. Ohman (submitted). "The significance of giant Phaeodarians (Rhizaria) to biogenic silica export in the California Current Ecosystem." Global Biogeochem. Cycles. Knauer, G. A., J. H. Martin and K. W. Bruland (1979). "Fluxes of particulate carbon, nitrogen, and phosphorus in the upper water column of the Northeast Pacific." Deep-Sea Research 26(1): 97-108. Stukel, M. R., M. D. Ohman, C. R. Benitez-Nelson and M. R. Landry (2013). "Contributions of mesozooplankton to vertical carbon export in a coastal upwelling system." Marine Ecology Progress Series 491: 47-65
Microplastics and Microfibers extracted from box core of sediment sampled from Santa Barbara Basin, on Cal-ECHOES cruise, 2010, at 34°17.228’ N, 120°02.135’ W, in approximately 580 m water depth.
A box core was taken in the Santa Barbara Basin on the Cal-ECHOES cruise, in October 2010, at 34°17.228’ N, 120°02.135’ W, in approximately 580 m water depth. X-radiographs were taken of the core to date it to a 1-2 year timescale. The core was cut every 0.5 cm with a thin wire, oven-dried, washed, and wet-sieved over a 104 μm sieve. The >104 μm was first sorted for fish otoliths by William Jones, and then sorted again for this study for microplastics and microfibers with a dissecting microscope. Every particle was measured, photographed, and categorized. A subset of particles were also spectrally identified as plastic or not plastic via FTIR spectroscopy. These are the lengths of the particles measured.
Microplastics and Microfibers extracted from box core of sediment sampled from Santa Barbara Basin, on Cal-ECHOES cruise, 2010, at 34°17.228’ N, 120°02.135’ W, in approximately 580 m water depth.
A box core was taken in the Santa Barbara Basin on the Cal-ECHOES cruise, in October 2010, at 34°17.228’ N, 120°02.135’ W, in approximately 580 m water depth. X-radiographs were taken of the core to date it to a 1-2 year timescale. The core was cut every 0.5 cm with a thin wire, oven-dried, washed, and wet-sieved over a 104 μm sieve. The >104 μm was first sorted for fish otoliths by William Jones, and then sorted again for this study for microplastics and microfibers with a dissecting microscope. Every particle was measured, photographed, and categorized. A subset of particles were also spectrally identified as plastic or not plastic via FTIR spectroscopy.
Suspended Sediment. Daily Water Sample Parameter, and Sediment Data for North Inlet Estuary, South Carolina, from 1981 to 1992, North Inlet LTER
This data package consists of Daily Water Sample Parameter, and Sediment Data for North Inlet Estuary, South Carolina, from 1981 to 1992, North Inlet LTER. The purpose of this study was to to establish a long term data base on the Sediment dynamics of a salt marsh estuarine system. These data can be used in correlation with a number of other estuarine data sets to obtain a broader definition of the overall estuarine ecosystem.
Sample data from trench sediments and rocks
<p>The data of glycerol dialkyl glycerol tetraether (GDGT) membrane lipids in sediments and rocks of the Mariana and Yap Trench, northwest Pacific Ocean.</p>
Modern sedimentation patterns in Lake Issyk Kul (Kyrgyzstan), derived from surface sediment and inlet stream samples
<p>Dataset of surface samples from Lake Issyk Kul, Kyrgyzstan</p>
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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)
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.