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 0.9.0
Dataset results
6,771 results for “freshwater”
FIGURE 3 in A new species of freshwater sponge, Heteromeyenia barlettai sp. nov. from an aquarium in São Paulo, Brazil (Spongillida: Spongillidae)
FIGURE 3. Scanning electron microscopy images of gemmules of the holotype of Heteromeyenia barlettai sp. nov. (UFPEPOR 1728). (a) Gemmule. (b) Foramen of gemmule. (c) Well developed, tri-layered gemmular theca. Scale bars: a 300 µm, b, c 50 µm.
FIGURE 2 in A new species of freshwater crab of the genus Odontothelphusa Rodríguez, 1982, (Crustacea: Decapoda: Pseudothelphusidae) from Chiapas, Mexico
FIGURE 2. Odontothelphusa apicpac new species, male holotype. Left first gonopod: a, mesial view; b, cephalic view; c, distolateral view; d, distocaudal view; e, distal view. Scale bar, 2 mm (1, distal crest of mesial surface; 2, distal angle of mesial plate; 3, rounded basal tubercle of proximomesial spine; 4, acute spine near sharp tip of proximomesial spine; 5, proximomesial spine; 6, proximal spine of lateral plate; 7, digitiform projection on cephalic margin of lateral plate; 8, distal spine of lateral plate; 9, distal hump on caudal portion of lateral surface; 10, marginal suture; 11, marginal plate; 12, apical notch of marginal plate; 13, distal fringe of setae on cephalic border; 14, apical cavity; 15, opening of spermatic channel).
FIGURE 3 in A new species of freshwater crab of the genus Odontothelphusa Rodríguez, 1982, (Crustacea: Decapoda: Pseudothelphusidae) from Chiapas, Mexico
FIGURE 3. Distribution of the species of Odontothelphusa in southeastern Mexico: 1, O. maxillipes (Type locality: Los Tuxtlas, Veracruz (altitude 330 m); 2, O. monodontis (Type locality: Coconá cave 3 km NE of Teapa town (17° 34' 53" N, 92° 55' 08" W; altitude 100 m), municipio de Teapa, Tabasco, México); 3, O. palenquensis (Type locality: small stream in Palenque archeological site (17° 29' 04" N, 92° 01' 09" W; altitude 60 m), municipio de Palenque, Chiapas, Mexico); 4, O. toninae (Type locality: small stream in Toniná archeological site (16° 53' 44" N, 92° 00' 27" W; altitude 1000 m), municipio de Ocosingo, Chiapas, México); 5, O. lacandona (Type locality: small stream 8 km from Benemérito de las Américas (16° 25' N, 90° 30' W; altitude 200 m), municipio de Benemérito de las Américas, Chiapas, Mexico). 6, O. lacanjaensis (Type locality: small tributary of Lacanjá river (16° 46' N, 91° 06' W; altitude 340 m), town of Lacanjá Chansayab, municipio de Ocosingo, Chiapas, Mexico); 7, O. apicpac (Type locality: Apic-Pac stream, 100 m of Malpaso Dam (17° 03' 27" N, 93° 28' 04" W; altitude 176 m), municipio de Ocozocoautla de Espinoza, Chiapas). Map from Online Map Creation at: http://www.aquarius.geomar.de/omc/.
FIGURE 6 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 6. Morphological details of distal tail region in Potamotrygon tigrina, n. sp., showing arrangement of dorsal tail spines, denticles, caudal stings, and vertebrae. A) MUSM 39978 (holotype; 495 mm TL, 271 mm DL, and 258 mm DW), lacking caudal stings. B) ANSP 191988 (paratype; 560 mm TL, 282 mm DL, 250 mm DW).
FIGURE 7 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 7. Geographic distributions of Potamotrygon tigrina, n. sp. (star, type locality), and P. schroederi (circles, type locality solid) examined in this study. Base map by M. J. Weitzman.
FIGURE 5 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 5. Details of the skeleton and dermal covering in Potamotrygon tigrina, n. sp., from holotype (MUSM 39978, 495 mm TL, 271 mm DL, and 258 mm DW). A) Splanchnocranium and scapular region (most of gill arches removed). B) Close-up of angular cartilage. C) Base of tail region showing arrangement of dorsal spines and denticles.
FIGURE 2 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 2. Freshly captured holotype of Potamotrygon tigrina, n. sp., in dorsal view, showing live coloration (MUSM 39978, juvenile male, Río Nanay, near Iquitos, Peru; 495 mm TL, 271 mm DL, and 258 mm DW).
FIGURE 4 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 4. Paratype of Potamotrygon tigrina, n. sp. in dorsal (A) and ventral (B) views (ANSP 191988, preadult female, Peru, Departamento Loreto, Iquitos, Río Nanay; 560 mm TL, 282 mm DL, 250 mm DW; specimen dry, color faded).
FIGURE 9 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 9. Remains of holotype of Potamotrygon schroederi (MHNLS 2504, Río Apure, Boca Apurito, Orinoco basin). A) Distal tail region with caudal stings. B) Nasoral region. C) Lateral portion of disc. Holotype was originally reported as a very large female (995 mm TL, 600 mm DL, 524 mm DW).
FIGURE 8 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 8. Río Nanay at Pampa Chica, large sandy beach along left bank of hairpin curve in river (flowing towards right), approximately 11 river km upstream from confluence with Río Amazonas and 4 km west of Iquitos center. Photo taken August 18, 2003. Large sandy beach where ANSP 182452 was collected in 2005 is largely submerged. Photograph by M. Sabaj Pérez.
FIGURE 3 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 3. Morphological details of holotype of Potamotrygon tigrina, n. sp. (MUSM 39978). A) Dorsal head and snout region. B) Nasoral region. C) Posterior disc and dorsal tail base region. D) Ventral view of pelvic fins. E) Posterior right side of disc, in dorsal view. F) Dorsal view of pelvic fins. Scale bars = 1 cm.
FIGURE 1 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 1. Holotype of Potamotrygon tigrina, n. sp., in dorsal (A) and ventral (B) views (MUSM 39978, juvenile male, Río Nanay, near Iquitos, Peru; 495 mm TL, 271 mm DL, and 258 mm DW).
FIGURE 20 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 20. Ventral lateral line canals of Potamotrygon schroederi, highlighting specific features (on right) that may be derived for P. schroederi and P. tigrina (see text for details). Highlighted canals are as follows: 1: rostral loop of the infraorbital canal; 2: orbitonasal component of the supraorbital canal 3: suborbital loop of the infraorbital canal; 4: compressed posterior jugular loop formed between jugular and infraorbital canals. Illustration based on MZUSP 108455.
FIGURE 19 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 19. Comparison of left anterolateral disc region in Potamotrygon schroederi among specimens from Orinoco (A and C, left column) and Negro basins (B and D, on right). A) AUM 44507. B) ANSP 191999. C) MZUSP 108452. D) MZUSP 108453. Scale bar = 5 cm.
FIGURE 18 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 18. Morphological details of distal tail region in Potamotrygon schroederi, showing arrangement of dorsal tail spines, denticles, caudal stings, and vertebrae. A) AUM 44507 (adult male, 780 mm TL). B) ANSP 191999 (adult female, 605 mm TL).
FIGURE 17 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 17. Skeletal features, dermal denticles and dorsal tail spines of Potamotrygon schroederi. A) Head, visceral arch, and scapular region. B) Close-up of angular cartilage. C) Base of tail region showing arrangement of dorsal spines and denticles. Based on AUM 44507 (adult male, 780 mm TL).
FIGURE 15 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 15. Morphological details of Potamotrygon schroederi from Rio Negro, Brazil. A) Dorsal anterior head and snout region (MZUSP 108453). B) Ventral snout and nasoral region (MZUSP 108452). C) Dorsal view of pelvic fin (MZUSP 108452). D) Ventral view of pelvis fins (MZUSP 108455). E) Dorsal view of posterior disc and tail base region in freshly captured adult female specimen (depicted Figure 12A; specimen not preserved). F) Detail of lateral disc color in freshly captured adult female specimen (depicted in Figure 12D; specimen not preserved). Scale bars in A, B, E and F = 5 cm; in C and D = 2.5 cm
FIGURE 13 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 13. Dorsal (A) and ventral (B) views of Potamotrygon schroederi from Barcelos, Rio Negro, Brazil (MZUSP 108452, 741 mm TL, 444 mm DL, 395 mm DW).
FIGURE 11 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 11. Morphological details, in dorsal view, of freshly captured specimens of Potamotrygon schroederi from Venezuela (whole specimens shown in Figure 10). A) Orbital region of AUM 44507 (adult male, 780 mm TL). B) Orbital region of ANSP 191999 (adult female, 605 mm TL). C) Base of tail and posterior disc (AUM 44507), showing claspers. D) Base of tail and posterior disc (ANSP 191999). E) Ventral view of pelvic fins (ANSP 191999). F) Nasoral region (ANSP 191999). Scale bar = 5 cm, except for F (= 2 cm).
FIGURE 16 in Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin, closely related to Potamotrygon schroederi Fernandez-Yépez, 1958 (Chondrichthyes: Potamotrygonidae)
FIGURE 16. Dorsal tail base region in specimens of Potamotrygon schroederi from Rio Negro, Brazil, showing distinct coloration and arrangement of tail spines and denticles. A-B) MZUSP 108453 (689 mm TL, 444 mm DL, 409 mm DW). C-D) MZUSP 108452 (741 mm TL, 444 mm DL, 395 mm DW). E) MZUSP 108445 (501 mm TL, 320 mm DL, 290 mm DW). F) MZUSP 108455 (319 mm TL, 202 mm DL, 188 mm DW). Scale bars = 5 cm.
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.