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6,771 results for “freshwater”
Freshwater fish and the Cretaceous/Palaeogene boundary: A critical assessment of survivorship patterns
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Data from: No effect of realistic concentrations of polyester microplastic fibers on freshwater zooplankton communities
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Data for: Photoperiod effects in a freshwater community: amphibian larvae develop faster and zooplankton abundance increases under an early-season photoperiod
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Fish zeta diversity responses to human pressures and cumulative effects across a freshwater basin
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Freshwater life-cycle timing of Pacific salmon and steelhead (Oncorhynchus spp.) in Canada
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Data from: Freshwater fish functional diversity shows diverse responses to human activities, but consistently declines in the tropics
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Dataset for: Tracking freshwater browning and coastal water darkening from boreal forests to the Arctic Ocean
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Late Pleistocene stickleback environmental genomes reveal the chronology of freshwater adaptation
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Uncovering patterns of freshwater positive interactions using meta‐analysis: identifying the roles of common participants, invasive species and environmental context
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Data from: Does migration promote or inhibit diversification? A case study involving the dominant radiation of temperate Southern Hemisphere freshwater fishes
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Data from: The latest freshwater giants: a new Peltocephalus (Pleurodira: Podocnemididae) turtle from the Late Pleistocene of the Brazilian Amazon
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Data from: Prey colonization in freshwater landscapes can be stimulated or inhibited by the proximity of remote predators
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Dataset for: Cascading effects of freshwater salinization on plankton communities in the Sierra Nevada
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Freshwater macroinvertebrate community composition and diversity data from lagoons on Navarino Island, Chile
This study was carried out during the austral summer of 2015 (15 January to 15 February) and assessed freshwater macroinvertebrate diversity associated with lakes and ponds along the altitudinal gradient of the Róbalo river watershed, located in the Magellanic sub-Antarctic ecoregion. The latter has a steep elevational gradient, peaking at around 1000 m a.s.l., and marked changes in temperature and landscape composition can be observed over relatively short distances. Four lagoons were chosen, as they were located on different altitudinal levels, thus allowing for comparison between the different zones found within the gradient. Along with the physical description of each lagoon (temperature, pH and conductivity), the surrounding habitats were characterized. Within each lagoon, four different habitat types were identified based on substrate composition, and the presence/absence and type of vegetation (vascular or non-vascular).
Freshwater Subtropical Ridge and Slough Wetland Metabolism, South Florida, USA: 2014-2016
How climate and habitat drive variation in aquatic metabolism in wetlands remains uncertain. To quantify differences in seasonal aquatic metabolism among wetlands, we estimated aquatic ecosystem metabolism (gross primary productivity, GPP; ecosystem respiration, ER; net aquatic productivity, NAP) in subtropical ridge and slough wetlands of the Florida Everglades from more than 2 years of continuously measured water column dissolved oxygen (DO), photosynthetically active radiation (PAR), water temperature, and water depth. GPP and ER were modeled from light, temperature, and water depth using non-linear minimization and maximum likelihood. Reaeration rates were estimated from wind speed. Dissolved oxygen was below saturation at all sites during both wet and dry seasons. Water depth interacted with vegetation to influence PAR, water temperature, and spatiotemporal patterns in aquatic metabolism. GPP and ER were highest at the slough with lowest submerged aquatic vegetation (low-SAV slough), intermediate in the sawgrass (Cladium jamaicense) ridge site, and lowest at the slough with lowest submerged aquatic vegetation (high-SAV slough). ER was strongly positively correlated with GPP at the sawgrass ridge and low-SAV slough sites. GPP increased with water temperature and PAR across all habitat types, whereas ER decreased (more respiration) with water temperature and PAR. NAP was negatively correlated with water temperature and positively correlated with PAR, suggesting that ER was more sensitive than GPP to water temperature. Aquatic metabolism was largely net heterotrophic in all wetlands, and high-SAV appeared to buffer seasonal variation in PAR and water temperatures that drive NAP in subtropical wetlands. Our results suggest that aquatic ecosystem metabolism in wetlands with seasonal hydrology is sensitive to changes in water depth and vegetation density that influence temperature and light. Expanding our understanding of how metabolic processes and carbon cycling in
Fig. 4. Aegla muelleri, n in New Species And New Records Of Endemic Freshwater Crabs From The Atlantic Forest In Southern Brazil (Anomura: Aeglidae)
Fig. 4. Aegla muelleri, n. sp. a: male holotype (MZUSP 20464), dorsal view; b: precervical portion of carapace, lateral view; c: ischium of cheliped, ventral view; d: third and fourth sterna, ventral view; e: second pleomere epimeron
Fig. 3 in New Species And New Records Of Endemic Freshwater Crabs From The Atlantic Forest In Southern Brazil (Anomura: Aeglidae)
Fig. 3. Maximum likelihood and Bayesian trees as modified from Pérez-Losada et al. (2009). Posterior probabilities (if> 0.5) are indicated for each clade. Aegla pomerana and Aegla muelleri are presented in bold
Fig. 1 in New Species And New Records Of Endemic Freshwater Crabs From The Atlantic Forest In Southern Brazil (Anomura: Aeglidae)
Fig. 1. Drainage basin of the Rio Itajaí, in the state of Santa Catarina. 1 = Municipality of Pomerode; 2 = Municipality of Indaial; 3 = Municipality of Blumenau
Fig. 2. Aegla pomerana, n in New Species And New Records Of Endemic Freshwater Crabs From The Atlantic Forest In Southern Brazil (Anomura: Aeglidae)
Fig. 2. Aegla pomerana, n. sp. a: male holotype (MZUSP 20463), dorsal view; b: precervical portion of carapace, lateral view; c: ischium of cheliped, ventral view; d: third and fourth sterna, ventral view; e: second pleomere epimeron
FIGURE 3 in Two new species of freshwater sponges from Neotropical and Afrotropical Regions
FIGURE 3. Holotype (UFPEPOR 2046) of Acanthotylotra xingu sp. nov. A, sponge. B, Skeletal network of megascleres. C, SEM of spicules megascleres. Scale bars: A = 1 mm; B = 125 μm; C = 50 μm.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.