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151 results for “Streams and rivers”
FIGURE 1. Preserved Amietia ruwenzorica stage 28 in The stream-dwelling larva of the Ruwenzori River Frog, Amietia ruwenzorica, its buccal cavity and pathology of chytridiomycosis
FIGURE 1. Preserved Amietia ruwenzorica stage 28 (SL 437): (a) lateral view with sinistral spiracular tube (S); (b) ventral view demonstrating the ventral position of oral disc (OD); (c) dorsal view showing sinistral spiracular tube; (d) extension of oral disc; (e) dextral anal tube or vent tube (AT). Scale bar equals 2 mm in (a)–(d) and 1 mm in (e).
FIGURE 4 in The stream-dwelling larva of the Ruwenzori River Frog, Amietia ruwenzorica, its buccal cavity and pathology of chytridiomycosis
FIGURE 4. The roof of mouth of Amietia ruwenzorica stage 35 (SL 437): (a) complete view; (b) connection of dorsal velum and ciliary cushions; (c) median ridge with the anterior papillae; (d) and (e) median ridge with the anterior papillae, the number postnarial papillae and the number and arrangement of lateral ridge papillae. Abbreviations: PRNA = prenarial arena (encircled by the dashed line), PONA = postnarial arena (encircled by the dashed line), BRA = buccal roof arena (encircled by the dashed line), PAP = prenarial arena pustulations, UJ = upper jaw, POP = postnarial papillae, PRP = prenarial papillae or pustulations, CH = choanae or internal nares, NVP = narial valve projection, LRP = lateral ridge papillae, MR = median ridge, BRAP = buccal roof arena papillae or pustulations (smaller than the height twice the diameter of the base), VP = prevelar papillae or pustulations, GZ = glandular zone, DV = dorsal velum (terminology according to Wassersug 1976, 1980, Viertel 1982).
FIGURE 3 in The stream-dwelling larva of the Ruwenzori River Frog, Amietia ruwenzorica, its buccal cavity and pathology of chytridiomycosis
FIGURE 3. The cusped labial teeth of Amietia ruwenzorica (SL 437): (a) uniserial position of the teeth on the tooth row; (b) lateral view of a tooth, stage 38; (c) view from the oral opening, stage 38. C = cusp (terminology according to Altig & McDiarmid 1999b).
FIGURE 2 in The stream-dwelling larva of the Ruwenzori River Frog, Amietia ruwenzorica, its buccal cavity and pathology of chytridiomycosis
FIGURE 2. Oral disc (OD) with labial tooth rows in preserved Amietia ruwenzorica specimens: (a) stage 28 larva (SL 437, same individual as in Fig. 1, OD width 6.48 mm), unchanged morphology; (b) stage 36 (SL 437, scale bar equals 3 mm) and (c) stage 31 larva (SL 437, scale bar equals 1 mm) with abnormally keratinized parts of upper and lower jaw sheaths (arrows) and tooth rows (rectangles); (d) stage 28 larva (SL 437, scale bar equals 2 mm) with missing tooth rows. Abbreviations: G = gap of divided (div) tooth rows, A-1 to A-10 = first to tenth tooth row of the anterior (upper) labium, P-1 to P-10 = first to tenth tooth row of the posterior (lower) labium, LJ = lower jaw sheath, UJ = upper jaw sheath, MP = marginal papillae, SM = submarginal papillae (terminology according to Altig & McDiarmid 1999b).
FIGURE 7 in The stream-dwelling larva of the Ruwenzori River Frog, Amietia ruwenzorica, its buccal cavity and pathology of chytridiomycosis
FIGURE 7. Chytridiomycosis in Amietia ruwenzorica. (a) discharge tube of a Bd sporangium protruding through the epidemis of stage 31 (SL 437), same specimen as in Figure 2c; (b) discharge tube of a Bd sporangium in the sloughing epidermis, stage 28 (SL 448); (c) labial teeth anlage (LT) covered by Bd sporangia, stage 36 (SL 437), same individual as in Figure 2b; (d) immature solid Bd sporangium (I) in the deeper epidermis; (e) mature sporangium (M) and an open empty stage (D); (f) empty Bd sporangium with septum (S); (d–f) stage 28 (SL 437), same specimen as in Figure 2d, (c–f). Light-microscopical hematoxilin and eosin stained sections (terminology according to Longcore & Pessier 1999, Berger et al. 2005).
Monthly pCO2, gas transfer velocity and CO2 efflux rate in global streams and rivers (the GRADES river networks)
<p>The datasets contain monthly partial pressure of dissolved CO<sub>2</sub> (<em>p</em>CO<sub>2</sub>, µatm), gas transfer velocity (<em>k</em>, m d<sup>-1</sup>), and CO<sub>2</sub> efflux rate (g C m<sup>-2</sup> d<sup>-1</sup>) estimates for global streams and rivers in both comma separated values (csv) and GeoTIFF formats. These datasets served as the base for monthly CO<sub>2</sub> emission estimates for global streams and rivers and can be used to support regional terrestrial carbon balances. Original vector-version of products is based on the Global Reach–level A priori Discharge Estimates for SWOT or GRADES river networks, which have ~ 3 million individual reaches of global streams and rivers. The GeoTIFF version has a spatial resolution of approximately 0.0083º (1 km). The datasets also contain direct CO<sub>2</sub> measurements compiled from the literature (Supplementary Data 1).</p>
FIGURE 5. Siking stream a in Exostoma dhritiae, a new sisorid catfish (Teleostei: Sisoridae) from the Brahmaputra River drainage, Arunachal Pradesh, India
FIGURE 5. Siking stream a tributary of Siang River near Yingkiong (Brahmaputra River drainage), the type locality of Exostoma dhritiae.
Supplementary material 4 from: Konopleva ES, Bolotov IN, Vikhrev IV, Inkhavilay K, Gofarov MYu, Kondakov AV, Tomilova AA, Chapurina YE, Van Do T, Pfeiffer JM, Lopes-Lima M, Bogan AE (2023) A freshwater mussel species reflects a Miocene stream capture between the Mekong Basin and East Asian rivers. Zoosystematics and Evolution 99(1): 29-43. https://doi.org/10.3897/zse.99.90784
Figure S1. Fossil-calibrated Unionidae tree, including the genus Cristaria, based on the complete data set of mitochondrial and nuclear gene sequences (five partitions: three codons of COI + 16S rRNA + 28S rRNA)
Supplementary material 1 from: Konopleva ES, Bolotov IN, Vikhrev IV, Inkhavilay K, Gofarov MYu, Kondakov AV, Tomilova AA, Chapurina YE, Van Do T, Pfeiffer JM, Lopes-Lima M, Bogan AE (2023) A freshwater mussel species reflects a Miocene stream capture between the Mekong Basin and East Asian rivers. Zoosystematics and Evolution 99(1): 29-43. https://doi.org/10.3897/zse.99.90784
List of sequences used in this study, including species names, localities, voucher numbers, and GenBank accession numbers
Dataset for Book Chapter Trace Elements and their Isotopes in Streams and Rivers
<p>Dataset for Chapter Trace Elements and their Isotopes in Streams and Rivers. A dataset listing all trace element concentrations used for figures in the Chapter. The occurrence and speciation of trace elements in streams and rivers are controlled by interconnected hydrogeological, biogeochemical, and anthropogenic factors that include rock weathering, climate, vegetation, and land use within the watershed. The purpose of this chapter is to provide a broad overview of trace element abundance, speciation, and mobility in streams and rivers. We also discuss how trace elements are mobilized into stream networks and transformed during transport. Select isotopic systems are reviewed in order to provide examples of how isotopic analyses can be used to understand geochemical and anthropogenic processes. The occurrence and speciation of trace elements in streams and rivers are controlled by interconnected hydrogeological, biogeochemical, and anthropogenic factors that include rock weathering, climate, vegetation, and land use within the watershed. The purpose of this chapter is to provide a broad overview of trace element abundance, speciation, and mobility in streams and rivers. We also discuss how trace elements are mobilized into stream networks and transformed during transport. Select isotopic systems are reviewed in order to provide examples of how isotopic analyses can be used to understand geochemical and anthropogenic processes.</p>
Data from: Ephemeral stream reaches preserve the evolutionary and distributional history of threespine stickleback in the Santa Clara and Ventura River Watersheds of southern California
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Data from: CO-RIP: a riparian vegetation and corridor extent dataset for Colorado River Basin streams and rivers
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Data from: Predictive habitat occupancy models for North American river otters along inland streams in New Jersey
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Data from: Summer stream temperatures influence sculpin distributions and spatial partitioning in the Upper Clark Fork River Basin, Montana
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Data from: River network architecture, genetic effective size and distributional patterns predict differences in genetic structure across species in a dryland stream fish community
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Monthly pCO2, gas transfer velocity and CO2 efflux rate in global streams and rivers (the GRADES river networks)
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Data from: Predicting combined effects of land use and climate change on river and stream salinity
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Data from: Infection prevalence and density of a pathogenic trematode parasite decrease with stream order along a river continuum
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Stream temperatures in the upper Little Tennessee and Chattooga River watersheds, Macon County, North Carolina, USA
We used HOBO Water Temp Pro v2 loggers to measure stream temperature at 10 minute intervals in 9 1st, 2nd and 3rd order streams in the upper Little Tennessee and Chattooga River watersheds, Macon County, North Carolina, U.S.A. The dataloggers were deployed in January and February 2020. Data collections are ongoing. Stream temperature data will be used to help assess the impacts of climate change and anthropogenic disturbances (e.g., removal of riparian vegetation and artificial ponds) on stream temperature in these smaller headwater streams.
Fig. 5 in Effects of deforestation on headwater stream fish assemblages in the Upper Xingu River Basin, Southeastern Amazonia
Fig. 5. Diagram of Canonical Correspondence Analysis (CCA) relating 29 fish species (blue letters), 11 environmental variables (black vectors), and 9 sampling sites each in first-order forest streams (solid green circles) and deforested stream reaches (open red circles) in the Upper Xingu River Basin. Species that had only one (singletons), two (doubletons), or three individuals collected were included in the analysis but are not displayed for improved visualization. Environmental variable marked with * was the strongest predictor of fish assemblage's structure. FBOM = fine benthic organic matter; CBOM = coarse benthic organic matter; Ami = Aequidens michaeli; Amu = Astyanax multidens; Api = Apistogramma sp.; Bra = Brachyglanis sp.; Cro = Crenicichla rosemariae; Etr = Eigenmannia trilineata; Gro = Gymnorhamphichthys rondoni; Gca = Gymnotus cf. carapo; Hac = Hisonotus acuen; Hel = Helogenes marmoratus; Hle = Hypopygus lepturus; Hlo = Hyphessobrycon loweae; Hma = Hoplias malabaricus; Hmu = Hyphessobrycon mutabilis; Hsp = Hyphessobrycon sp.; Hun = Hoplerythrinus unitaeniatus; Mme = Melanorivulus megaroni; Mco = Moenkhausia collettii; Mph = Moenkhausia phaeonota; Pam = Pamphorichthys sp.; Pau = Pyrrhulina australis.
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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.