Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
6,771
datasets available to search
ShareScore release 0.7.1
Dataset results
6,771 results for “freshwater”
Fig. 3 in A New Cleaning Method for Accurate Examination of Freshwater Gastropod Shell Specimens Covered with Iron-rich Deposits
Fig. 3. Specimens of Semisulcospira reticulata before and after treatments. A, Before treatment; B–G, After treatment with sodium hypochlorite (B, C, 3%, KUZ Z3724–Z3725; D, E, 6%, Z3726–Z3727; F, G, 12%, Z3728–Z3729; B, D, F, AP-opened; C, E, G, AP-closed); H–M, After treatment with ammonium thioglycolate (H, I, 5%, KUZ Z3730–Z3731; J, K, 10%, Z3732–Z3733; L, M, 20%, Z3734–Z3735; H, J, L, APopened; I, K, M, AP-closed). Scale bar: 10 mm.
Fig. 4 in A New Cleaning Method for Accurate Examination of Freshwater Gastropod Shell Specimens Covered with Iron-rich Deposits
Fig. 4. Shell surfaces of penultimate whorl of Semisulcospira reticulata before and after treatments. The specimens and their order are the same as in Fig. 3. Scale bars: 2 mm.
Fig. 6 in A New Cleaning Method for Accurate Examination of Freshwater Gastropod Shell Specimens Covered with Iron-rich Deposits
Fig. 6. SEM observations of cross sections (A–F) and inner surfaces (G–J) of outer lips. A, Semisulcospira niponica before treatment; B, S. niponica after treatment with 12% sodium hypochlorite, KUZ Z3716; C, S. niponica after treatment with 20% ammonium thioglycolate, KUZ Z3722; D, G, S. reticulata before treatment; E, H, AP-opened S. reticulata after treatment with 12% sodium hypochlorite, KUZ Z3728; F, I, AP-closed S. reticulata after treatment with 20% ammonium thioglycolate, KUZ Z3734; J, AP-opened S. reticulata after treatment with 20% ammonium thioglycolate, KUZ Z3735. Scale bars: 100 µm (A–F), 10 µm (G–J). Abbreviations: CCL, calcium carbonate layer; PL, periostracum layer.
Fig. 1 in Plasma ion levels of freshwater and marine/estuarine teleosts from Southern Brazil
Fig. 1. Ion regulation curves for Na+ (a), Cl- (b), Ca2+ (c), Mg2+ (d), and K+ (e) in the plasma of M. furnieri () and G. barbus (O) collected from water at different salinities from the São Gonçalo channel. Data are expressed as the means ± SEM (n = 12) (P <0.05); the traced line represents the isoionic line. The following equations were fitted to the data: Micropogonias furnieri (Na+: y=214.52+0.051x, r2=0.87; Cl-: y=130.45+0.110, r2=0.94; K+: y=14.44-0.396x, r2=0.71; Ca2+: y=1.73+0.067x, r2=0.70; Mg2+: y=0.62+0.020x, r2=0.70); Genidens barbus (Na+: y=223.74+0.048x, r2=0.70; Cl-: y=150.56+0.133x, r2=0.98; K+: y=14.23-0.419x, r2=0.97; Ca2+: y=2.29+0.087x, r2=0.82; Mg2+: y=0.66+0.037x, r2=0.85), where x = salinity and y = plasma ion concentration (mmol L-1).
Figure 4 in A New Species of the Freshwater Crayfish Genus Euastacus (Decapoda: Parastacidae) from Northeastern New South Wales, Australia
Figure 4. Distinguishing features of the chela of Euastacus mirangudjin n.sp. Dorsal view (A, B) and ventral view (C, D) of chela of holotype (A, C) and paratype (B, D). ad, apical mesial dactylar spine (1 spine); ap, dorsal apical propodal spine row (3–4 spin es); dce, spine row above dactylar cutting edge (3–4 spines); ldb, bumps and protuberances lateral to dactylar base; mc, mesial carpal sp ines (usually 3, paratype with 4); mp, mesial propodal spines (5); pce, spine row above propodal cutting edge (4–7 spines, extending to base of chela gape); v, ventral carpal spine (large); vm, ventromesal carpal spine (1 spine, smaller than or as large as ventral carpal spine). Photographs by Max Egan.
Figure 3. Euastacus mirangudjin n in A New Species of the Freshwater Crayfish Genus Euastacus (Decapoda: Parastacidae) from Northeastern New South Wales, Australia
Figure 3. Euastacus mirangudjin n.sp. Dorsal view of chela (paratype) showing 4 mesial carpal spines. All other specimens examined bore 3 mesial carpal spines. Photograph by Max Egan.
Fig. 10. A in Surveys of Afrotemperate forests yields two new freshwater crabs (Decapoda: Potamonautidae: Potamonautes MacLeay, 1838) from South Africa
Fig. 10. A. Dorsal image of Potamonautes baziya sp. nov., when alive. Scale bar = 10 mm. B. Afrotropical forest stream habitat where P. baziya sp. nov. was collected at Baziya forest station in Eastern Cape Province, South Africa.
Fig. 9 in Surveys of Afrotemperate forests yields two new freshwater crabs (Decapoda: Potamonautidae: Potamonautes MacLeay, 1838) from South Africa
Fig. 9. Potamonautes baziya sp. nov., ♂, holotype (SAM A-094474) A. Left gonopod 1, anterior view. B. Left gonopod 1, posterior view. C. Left gonopod 2, anterior view. D. Right third maxilliped. Scale bar = 10 mm.
Fig. 3 in Surveys of Afrotemperate forests yields two new freshwater crabs (Decapoda: Potamonautidae: Potamonautes MacLeay, 1838) from South Africa
Fig. 3. Potamonautes mariepskoppie sp. nov., ♂, holotype (SAM A-094471) A. Left gonopod 1, anterior view. B. Left gonopod 1, posterior view. C. Left gonopod 2, anterior view. D. Right third maxilliped. Scale bar = 10 mm.
Fig. 2 in Surveys of Afrotemperate forests yields two new freshwater crabs (Decapoda: Potamonautidae: Potamonautes MacLeay, 1838) from South Africa
Fig. 2. Potamonautes mariepskoppie sp. nov., ♂, holotype (CL = 19.07 mm) (SAM A-094471). A. Entire animal, dorsal aspect. B. Entire animal, ventral aspect. C. Cephalothorax, frontal aspect. Scale bar = 10 mm.
Fig. 6. Swamp forest habitat where P in Surveys of Afrotemperate forests yields two new freshwater crabs (Decapoda: Potamonautidae: Potamonautes MacLeay, 1838) from South Africa
Fig. 6. Swamp forest habitat where P. mariepskoppie sp. nov., was collected at the Blyde Canyon Nature Reserve, below the Mariepskop Mountains, Mpumalanga Province, South Africa.
Fig. 8 in Surveys of Afrotemperate forests yields two new freshwater crabs (Decapoda: Potamonautidae: Potamonautes MacLeay, 1838) from South Africa
Fig. 8. Potamonautes baziya sp. nov., ♂, holotype, (SAM A-094474) A. Major right cheliped. B. Minor left cheliped. Scale bar = 10 mm.
Fig. 1. A in Surveys of Afrotemperate forests yields two new freshwater crabs (Decapoda: Potamonautidae: Potamonautes MacLeay, 1838) from South Africa
Fig. 1. A Maximum Likelihood tree topology derived for the three mtDNA loci (12S rRNA +16S rRNA + COI) for the eastern and southern African freshwater crab genus Potamonautes, with the outgroups removed. Bootstrap values> 75% are indicated below each node while posterior probability values> 0.95 pP are shown above each node. An asterisk (*) above or below a node indicates the lack of statistical support. The new, as yet undescribed species from Hogsback is demarked as P. sp. nov. on the phylogenetic tree. Clades 1 and 2 refers to predominantly East African species, while clade 3 refers to the southern African clade.
Fig. 5. A in Surveys of Afrotemperate forests yields two new freshwater crabs (Decapoda: Potamonautidae: Potamonautes MacLeay, 1838) from South Africa
Fig. 5. A. Dorsal image of Potamonautes mariepskoppie sp. nov., when alive taken at the Blyde Canyon Nature Reserve, Mpumalanga Province, South Africa. B. Dorsal image of P. mariepskoppie sp. nov., of the specimen collected at Haenertsburg, Limpopo Province, South Africa. Scale bars = 10 mm.
Fig. 7 in Surveys of Afrotemperate forests yields two new freshwater crabs (Decapoda: Potamonautidae: Potamonautes MacLeay, 1838) from South Africa
Fig. 7. Potamonautes baziya sp. nov., ♂, holotype (CL = 29.28 mm) (SAM A-094474). A. Entire animal, dorsal aspect. B. Entire animal, ventral aspect. C. Cephalothorax, frontal aspect. Scale bar = 10 mm.
Fig. 4 in Surveys of Afrotemperate forests yields two new freshwater crabs (Decapoda: Potamonautidae: Potamonautes MacLeay, 1838) from South Africa
Fig. 4. Potamonautes mariepskoppie sp. nov., ♂, holotype (SAM A-094471) A. Major right cheliped. B. Minor left cheliped. Scale bar = 10 mm.
Freshwater crayfishes (Decapoda: Astacidea) of the Montana Entomology Collection, Montana State University
<p>Astacidea (colloquially known as crayfish, crawfish, crawdads, or mudbugs) are well-recognized crustaceans, with distributions especially of interest to fisheries and aquatic ecologists. From 2018 to 2022, Montana Entomology Collection (MTEC), funded by the Council on Library and Information Resources “Hidden Collections” grant, digitized Astacidea (Crustacea: Decapoda) specimens housed in its museum. This produced over 160 metadata records detailing sampling localities, collecting dates, number of individuals, and identifications of specimens collected mainly from Montana, USA. The metadata records reveal the efforts of 28 collectors, spanning 60 years of sampling. This dataset makes information associated with 726 individual specimens from 5 species stored in the MTEC available.</p>
Data for: The interaction between metabolic rate, habitat choice, and resource use in a polymorphic freshwater species
<p>Raw respirometry data and respirometry code</p> <p>Data.xlsx is the data about each fish that was used for all analyses including Stable Isotope values, length, weight, sex, and habitat. This is the data that is used in the R code. </p> <p>Example code of the models used in our analyses</p> <p>TEF_metabolism.xlsx is data on the fish that were kept in the lab for almost a year. </p> <p> </p>
The site of an experimental oil spill located at a freshwater wetland along the St. Lawrence River re-visited after 21 years
<p>In 1999 a wetland close to Ste. Croix de Lotibiniere (Quebec, Eastern Canada) and located along the St. Lawrence River was the site of a simulated oil spill. Test plots were set up, contaminated with crude oil and subsequently used to test natural attenuation, nutrient amendment or vegetation cropping as remediation treatments. In 2020, this study revisited the former test plots to investigate any lingering effects of the original Ste. Croix study. Test plot sediments and control sediments featured detectable quantities (75 - 165 g/kg) of mid-chain n-alkanes (C10-C36), but no other kinds of hydrocarbons. Differences in hydrocarbon, total organic carbon, nitrogen and phosphorous content were not significantly different between test plot sediments and control sediments. A microbial analysis did not detect significant differences in microbial load, microbial diversity or microbial community composition between test plot sediments and control sediments. Key genes for the aerobic and anaerobic degradation of n-alkanes as well as for the aerobic degradation of polycyclic aromatic hydrocarbons were detected in all sediment samples. Abundances of these genes did not differ significantly between formerly oil-contaminated sediments and control sediments. This study shows that after 21 years, previously oil-contaminated sediments of the Ste. Croix wetland can be considered completely remediated irrespective of the performed remediation treatment.</p> <p>In this file archive are included, metadata, metagenome co-assembly, functional and taxonomic annotations, contigs and genes abundance matrices and MAGs files.</p> <p>Raw Illumina sequence data was deposited in the NCBI SRA portal under accession PRJNA818909.</p>
Fig. 2 in Circulation Pathways Of Trematodes Of Freshwater Gastropod Mollusks In Forest Biocenoses Of The Ukrainian Polissia
Fig. 2. Two-host life cycles of trematodes: а — alternation hosts; b — proportion of different classes of definitive hosts in life cycles.
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.