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Efficacy and fate of fluridone applications for control of invasive submersed aquatic vegetation in the estuarine environment of the Sacramento-San Joaquin Delta
We conducted a study in the Sacramento-San Joaquin Delta to determine efficacy of the widely used herbicide fluridone in an estuarine ecosystem. The primary goal of SAV removal was restoration of open water habitat for endangered Hypomesus transpacificus (Delta Smelt). Over 18 months and multiple sets of multi-week fluridone applications, we monitored concentrations of fluridone and responses by SAV across pairs of treated and reference sites. Fluridone concentrations in the water were generally below the 2-5 parts per billion required for SAV control. Monitoring demonstrated these low water concentrations were likely due to dissipation by tides, despite use of pelleted fluridone formulations marketed for flowing water environments. Fluridone did, however, accumulate in sediment at concentrations hundreds of times higher than those measured in the water. Nonetheless, we did not observe lasting reductions in SAV abundance or changes in SAV community composition. By demonstrating lack of efficacy of one of the few herbicides permitted for use in this estuary, this study highlights the need for development of SAV management tools tailored to the challenges of hydrologically complex environments like estuaries.
Abundance of eukaryote picophytoplankton and Synechococcus from a moored submersible flow cytometer at Martha's Vineyard Coastal Observatory, ongoing since 2003 (NES-LTER since 2017)
This is a decadal-scale time series of the abundance of eukaryote picophytoplankton and Synechococcus at 4 meters depth at the Martha's Vineyard Coastal Observatory, about 3 km south of Katama Beach, Edgartown, Massachusetts, USA. Picophytoplankton were sensed in situ by a submersible flow cytometer (FlowCytobot, or FCB). Sampling frequency was continuous at approximately 20-minute intervals binned to hourly resolution with some exceptions (e.g., winter in some years). This time series is ongoing for Northeast U.S. Shelf Long-Term Ecological Research (NES-LTER).
Submersed Aquatic Vegetation community multi-year data from the Sacramento - San Joaquin Delta in California
Since 2007, field data have been collected in the Sacramento - San Joaquin Delta in northern California for the purpose of training and validating invasive species maps derived from remote sensing imagery over the Delta. The field crew collected submersed aquatic vegetation (SAV) species location data. For each point they noted attributes such as species name(s), location, cover estimates, and patch size. In addition, a thatching rake tethered to a rope was thrown off the side of the boat and pulled back out of the water; Secchi depth was measured using a Secchi disk and depth to the SAV mat was estimated by the field crew. Points were collected in patches larger than 9 square meters (3 m x 3 m). Point locations were measured using high precision (sub-meter accuracy) Trimble DGPS units (Trimble Navigation Limited, Sunnyvale, California) with Wide Area Augmentation System (WAAS) differential correction. All data points were exported as ArcGIS shapefiles and projected to UTM Zone 10N, Datum WGS-84 however this dataset includes the Latitude and Longitude of each point in decimal degrees. The spatial and attribute data quality was checked by examining photos of the data points and confirming the identify of the documented species.
Submersed aquatic vegetation community composition in the Sacramento-San Joaquin Delta integrated across four surveys
Submersed aquatic vegetation (SAV) has become widespread in the Sacramento-San Joaquin Delta (Delta), and the diverse SAV assemblage is dominated by non-native species. SAV negatively impacts this estuarine ecosystem by impeding flows needed for water delivery and flood control, degrading habitat needed by native species, increasing breeding habitat for disease-vectoring mosquitoes, harboring non-native predatory fish, and hindering water recreation. The goal of this published integrated dataset is to facilitate study of these impacts. This data set includes four surveys conducted in the region during 2008-2021. Two of these are short-term special studies that have been completed, and two are ongoing long-term annual surveys. The nearshore survey of SAV and largemouth bass was conducted by the University of California-Davis (UC-Davis) at sites across the Delta during 2008-2010. The Aquatic Weed Control Action was completed by the Department of Water Resources as part of the Delta Smelt Resiliency Strategy and included monthly surveys of four sites during 2017-2018. The ongoing survey of Franks Tract is conducted annually by the SePRO corporation and the Division of Boating and Waterways, and available data are from 2014-2021. The ongoing annual survey conducted by the UC-Davis Center for Spatial Technologies and Remote Sensing covers many areas of the Delta and spans 2007-2008 and 2014-2021. Additional data from these ongoing surveys and data from other surveys will be added in subsequent versions of this data set.
Meteorological data from the experimental period of the submersion test of photovoltaic cables
<p>Meteorological data recorded by the onsite weather station (coordinates: 38°31'50.0"N 8°00'40.3"W) regarding the study of submersion of photovoltaic cables (with two different insulation materials) in freshwater and artificial seawater. The metereological data is logged with 1minute time resolution for the period from 16/10/2020 to 25/01/2021.</p> <p>The meteorological station is composed by:</p> <p>Kipp and Zonen Solys2 Sun tracker</p> <p>Kipp and Zonen CMP6 Pyranometer (horizontal global solar radiation, data units W/m2)</p> <p>RH and Air temperature sensor (air relative humidity, data units % and ambient air temperature, data units ºC)</p> <p>Rain Gauge (precipitation, data units mm)</p>
Experimental data of photovoltaic cable submersion tests
<p>Experimental data tables regarding the study of submersion of photovoltaic cables (with two different insulation materials) in freshwater and artificial seawater. Subjected to real life conditions, replicating when FPV systems are located in reservoirs or in the marine environment. Electrical insulation tests were carried out weekly to assess possible cable degradation, the physical-chemical characteristics of the water were also periodically monitored, complemented by analysis to detect traces of copper and microplastics in the water.</p>
Figure 4 in Phytoplankton Exopolymers Enhance Adhesion of Microplastic Particles to Submersed Surfaces
Figure 4. Gating of the total (Bac) and high nucleic acid (HNA) bacteria in the space of forward scatter (FS) and green fluorescence (FL1). Results obtained for the experimental vessels with Rhodomonas salina (RHO), Tetraselmis suecica (TET) and the reference vessel (CNL).
Figure 1 in Phytoplankton Exopolymers Enhance Adhesion of Microplastic Particles to Submersed Surfaces
Figure 1. Cytograms of the cultures of Chaetoceros neogracile (A; data from Long et al., 2017), Rhodomonas salina (B; our data) and Tetraselmis suecica (C; our data) exposed to fluorescent polystyrene microspheres. Gating: MS – microspheres, CHA – Ch. neogracile, H-A – hetero-aggregates of Ch. neogracile and microspheres (according to Long et al., 2017), RHO – Rh. salina, TET – T. suecica.
Figure 2 in Phytoplankton Exopolymers Enhance Adhesion of Microplastic Particles to Submersed Surfaces
Figure 2. General scheme of processes in the experimental and reference (CNL) vessels: Dynamics of Rhodomonas salina (RHO), Tetraselmis suecica (TET) and fluorescent microspheres (MS) in the medium (left plot); Immobilization of MS on slide surface (right plot and photos). Error bars are standard deviations.
Fig. 5 in Phytoplankton Exopolymers Enhance Adhesion of Microplastic Particles to Submersed Surfaces
Fig. 5. Bacterial abundance (N) and a portion of HNA-bacteria in the bacterial consortium (HNA%) in the experimental vessels with Rhodomonas salina (RHO), Tetraselmis suecica (TET) and the reference vessel (CNL) at the final stage of the experiment. Error bars are standard deviations.
Figure 17. A in New carnivorous sponges (Porifera, Poecilosclerida) collected from manned submersibles in the deep Pacific
Figure 17. A, Chondrocladia lampadiglobus sp. nov., holotype, 2714 m (Ifremer/Naudur). Inset: unidentified worm gliding on the lower left sphere of A, changing position during the video sequence. B, C. lampadiglobus, collection of the holotype by the arm of 'Nautile' submersible (Ifremer/Naudur). C, presumed C. lampadiglobus, GEOCYARISE 3 (CY 30), 2622 m, 12°54′N, 103°58′W (Ifremer/Geocyarize 3). D, presumed C. lampadiglobus, GEOCYARISE 1 (CY 07), 2623 m (Ifremer/Geocyarize 1). E, collection of Abyssocladia formosa sp. nov. by the arm of 'Nautile' submersible, 1997 m (Ifremer/ Starmer 1). F, three presumed Cladorhiza segonzaci sp. nov. on a dead chimney on the tip of which was attached C. segonzaci and Abyssocladia naudur sp. nov. (Ifremer/Naudur).
Figure 11 in New carnivorous sponges (Porifera, Poecilosclerida) collected from manned submersibles in the deep Pacific
Figure 11. Abyssocladia huitzilopochtli sp. nov. A, peduncle near the base, showing lining by isochelae 1 and 2 (scale bar: 80 µm). B, view of a part of the body, with a dense accumulation of microscleres surrounding an inclusion (scale bar: 1 mm). C, crustacean residue in the body (arrowheads); on the right, abyssochela, orthancistra and isochela 1 (scale bar: 55 µm). D, section through the area of the body containing a dense inclusion shown in B (scale bar: 0.7 mm). E, section through the body, showing spicule fascicles, numerous abyssochelae, isochelae 1, orthancistras and sigmancistras (scale bar: 220 µm).
Figure 10 in New carnivorous sponges (Porifera, Poecilosclerida) collected from manned submersibles in the deep Pacific
Figure 10. Abyssocladia huitzilopochtli sp. nov. A, orthancistras and developmental stage (scale bar: 24.5 µm). B, sigmancistras 1 and 2 (scale bar: 3 µm).
Figure 12 in New carnivorous sponges (Porifera, Poecilosclerida) collected from manned submersibles in the deep Pacific
Figure 12. Abyssocladia inflata sp. nov. A, view of the holotype (scale bar: 1.4 mm). B, general view of the spicules (scale bar: 260 µm). C, isochelae 1 (scale bar: 27 µm). D, acanthomicroxea (scale bars: 25 µm and 2.5 µm). E, isochelae 2 (abyssochelae) (scale bar: 17 µm). F, sigmancistra (scale bar: 3.3 µm). G, style (scale bar: 18 µm).
Figure 15 in New carnivorous sponges (Porifera, Poecilosclerida) collected from manned submersibles in the deep Pacific
Figure 15. Abyssocladia naudur sp. nov. A, view of the holotype (scale bar: 4.3 mm). B, part of a paratype (scale bar: 3.4 mm). C, paratypes (scale bar: 2 mm). D, isochelae (scale bar: 5.5 µm). E, sigmancistra 1 and 2 (scale bar: 1.4 µm). F, style of the axis (scale bar: 64 µm). G, styles of the lateral processes (scale bar: 40 µm). H, diverse sizes of substrongyles of the base (scale bar: 33.4 µm).
Figure 9 in New carnivorous sponges (Porifera, Poecilosclerida) collected from manned submersibles in the deep Pacific
Figure 9. Abyssocladia huitzilopochtli sp. nov. A, view of the holotype (scale bar: 4.8 mm). B, arcuate isochela 1 and developmental stage (scale bar: 12.4 µm). C, head and tip of a substrongyle of the peduncle and of fascicles (scale bar: 95 µm). D, small substrongyle (scale bar: 62 µm). E, abyssochelae, front view (scale bar: 13 µm). F, abyssochelae, dorsal view and developmental stages (scale bar: 13 µm). G, substrongyle of the base (scale bar: 66 µm).
Figure 8 in New carnivorous sponges (Porifera, Poecilosclerida) collected from manned submersibles in the deep Pacific
Figure 8. Asbestopluma (Helophloeina) formosa sp. nov. A, two fusiform styles of the axis (scale bar: 65 µm). B, style of the lateral processes (scale bar: 21.5 µm). C, substrongyle (scale bar: 14.3 µm). D, microstrongyle and detail of the head (scale bars: 6.2 µm and 1.5 µm). E, two anisochelae 1 and an immature one (scale bar: 10 µm). F, two microtylostyles (scale bar: 4.3 µm). G, anisochelae 2 (scale bar: 2 µm).
Figure 6 in New carnivorous sponges (Porifera, Poecilosclerida) collected from manned submersibles in the deep Pacific
Figure 6. Asbestopluma (Helophloeina) formosa sp. nov. Fragments of the holotype. A, scale bar: 10.3 mm. B, scale bar: 8 mm.
Figure 5 in New carnivorous sponges (Porifera, Poecilosclerida) collected from manned submersibles in the deep Pacific
Figure 5. Asbestopluma agglutinans sp. nov. A, holotype (left) and paratype (scale bar: 3.8 mm). B, style of the axis (scale bar: 83 µm). C, head and tip of a style of the axis (scale bar: 28 µm). D, style of the filament axis (scale bar: 35 µm). E, substrongyle of the base (scale bar: 37 µm). F, acanthotylostrongyle (scale bar: 7.5 µm). G, head and tip of an acanthotylostrongyle (scale bar: 2.3 µm). H, anisochela 1 (scale bar: 4.1 µm). I, anisochelae 2 (scale bar: 2 µm). J, anisochela 2, back view (scale bar: 2 µm). K, sigmancistra (scale bar: 2.9 µm).
Figure 3 in New carnivorous sponges (Porifera, Poecilosclerida) collected from manned submersibles in the deep Pacific
Figure 3. Chondrocladia koltuni sp. nov. A, sampling of the holotype by the manned submersible MIR, 5249 m depth, photo J. Volodin. B, holotype after preservation (scale bar: 13 mm). C, anchorate isochela 1 (scale bar: 12.3 µm). D, anchorate isochelae 2 (scale bar: 12.3 µm). E, anchorate isochelae 1, back view (scale bar: 7.6 µm). F, sigma 2 (scale bar: 7.3 µm). G, two styles from rhizoid (scale bar: 170 µm). H, head of a style from the cover of the stalk (scale bar: 93 µm). I, style of the stalk (scale bar: 106 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)
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.