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844 results for “Central Brazil”
Fig. 3 in New species of Moenkhausia Eigenmann (Ostariophysi: Characidae) from the upper rio Tocantins basin in Central Brazil
Fig. 3. Drawing of upper and lower jaws; left lateral view. Moenkhausia dasalmas, paratype, UFRGS 11194, 27.3 mm SL. Scale bar = 1 mm.
Fig. 2 in New species of Moenkhausia Eigenmann (Ostariophysi: Characidae) from the upper rio Tocantins basin in Central Brazil
Fig. 2. Left lateral view of the dorsal fin of Moenkhausia dasalmas, paratype, UFRGS 11194, 23.3 mm SL, c&s; showing the unbranched and branched rays. Scale bar = 1 mm.
Fig. 1 in New species of Moenkhausia Eigenmann (Ostariophysi: Characidae) from the upper rio Tocantins basin in Central Brazil
Fig. 1. Moenkhausia dasalmas, holotype, UFRGS 11221, 42.9 mm SL, tributary of rio das Almas, Cavalcante, Goiás, Brazil.
Fig. 5 in Changes in the structure of fish assemblages in streams along an undisturbed-impacted gradient, upper Paraná River basin, Central Brazil
Fig. 5. ABC curves per year of fish assemblages from stream stretches located in impacted areas. NP1 = Palmito; NP2 = Onça; NP3 = Unnamed Stream 3. W = statistical value for each stream.
Fig. 2 in Changes in the structure of fish assemblages in streams along an undisturbed-impacted gradient, upper Paraná River basin, Central Brazil
Fig. 2. Fish assemblage rarefaction plot by stream stretches. P1 = Macaúba; P2 = Carapina; P3 = Barreiro; P4 = Cana Brava; NP1 = Palmito; NP2 = Onça; NP3 = Unnamed Stream 3; NP4= Bandeira; NP5 = Pedreira; NP6 = Unnamed Stream 2.
Fig. 1 in Changes in the structure of fish assemblages in streams along an undisturbed-impacted gradient, upper Paraná River basin, Central Brazil
Fig. 1. Location of the streams sampled in the João Leite River basin, Goiás, Central Brazil. The broken line represents the limits of the basin. Clear grey area = Altamiro de Moura Pacheco State Park; Goiânia and Anápolis are the main cities in the basin. P1 = Macaúba; P2 = Carapina; P3 = Barreiro; P4 = Cana Brava; NP1 = Palmito; NP2 = Onça; NP3 = Unnamed Stream 3; NP4 = Bandeira; NP5 = Pedreira; NP6 = Unnamed Stream 2.
Fig. 3 in Changes in the structure of fish assemblages in streams along an undisturbed-impacted gradient, upper Paraná River basin, Central Brazil
Fig. 3. Fish assemblage dendogram resulting from the Morisita-Horns analysis. Roman numerals indicate the groups and the small box the scale of variance. P1 = Macaúba; P2 = Carapina; P3 = Barreiro; P4 = Cana Brava; NP1 = Palmito; NP2 = Onça; NP3 = Unnamed Stream 3; NP4 = Bandeira; NP5 = Pedreira; NP6 = Unnamed Stream 2.
Fig. 4 in Changes in the structure of fish assemblages in streams along an undisturbed-impacted gradient, upper Paraná River basin, Central Brazil
Fig. 4. ABC curves per year of fish assemblages from stream stretches located in preserved areas. P1 = Macaúba; P2 = Carapina; P3 = Barreiro; P4 = Cana Brava. W = statistical value for each stream.
Fig. 6 in Changes in the structure of fish assemblages in streams along an undisturbed-impacted gradient, upper Paraná River basin, Central Brazil
Fig. 6. ABC curves per year of fish assemblages from stream stretches located in impacted areas. NP4 = Bandeira; NP5 = Pedreira; NP6 = Unnamed Stream 2. W = statistical value for each stream.
Fig. 4 in Astyanax goyanensis (Miranda-Ribeiro, 1944), new combination and Astyanax courensis, new species (Ostariophysi: Characiformes): two Characidae from the upper rio Tocantins basin, Central Brazil
Fig. 4. (a) Rio dos Couros downstream from the Cachoeira São Bento, type-locality of Astyanax courensis, new species; (b) small stream tributary of rio dos Couros at Parque Portal da Chapada, locality of collection of Astyanax goyanensis.
Fig. 3 in Astyanax goyanensis (Miranda-Ribeiro, 1944), new combination and Astyanax courensis, new species (Ostariophysi: Characiformes): two Characidae from the upper rio Tocantins basin, Central Brazil
Fig. 3. Distribution of Astyanax goyanensis (circles) and A. courensis, new species (square), on upper rio Tocantins, Alto Paraíso de Goiás, Goiás State, Brazil. A, rio Tocantinzinho; B, rio Tocantins; C, rio Paranã; DF, Distrito Federal. Symbols can represent more than one lot or locality. Base map prepared by Marilyn Weitzman.
Fig. 2. Astyanax goyanensis, UFRGS 11291, 59.2 in Astyanax goyanensis (Miranda-Ribeiro, 1944), new combination and Astyanax courensis, new species (Ostariophysi: Characiformes): two Characidae from the upper rio Tocantins basin, Central Brazil
Fig. 2. Astyanax goyanensis, UFRGS 11291, 59.2 mm SL. Scanning electronic microscopy images of the upper and lower jaws, left side, lateral view. Scale bar = 1 mm.
Fig. 7 in Hemigrammus tocantinsi: a new species from the upper rio Tocantins basin, Central Brazil (Characiformes: Characidae)
Fig. 7. Type locality of Hemigrammus tocantinsi, Brazil, Goiás, Cavalcante, rio das Pedras, Fazenda Córrego Fundo.
Fig. 6 in Hemigrammus tocantinsi: a new species from the upper rio Tocantins basin, Central Brazil (Characiformes: Characidae)
Fig. 6. Geographic distribution of Hemigrammus tocantinsi in rio das Almas drainage, upper rio Tocantins basin, Brazil. Rectangle = municipality of Cavalcante, GO; stars = localities of occurrence of H. tocantinsi; lozenge = type-locality. Arrow shows the direction of rio das Almas flow.
Fig. 5 in Hemigrammus tocantinsi: a new species from the upper rio Tocantins basin, Central Brazil (Characiformes: Characidae)
Fig. 5. Hemigrammus tocantinsi: (a) pectoral-fin length and (b) pelvic-fin length as function of standard length in males and females.
Fig. 3 in Hemigrammus tocantinsi: a new species from the upper rio Tocantins basin, Central Brazil (Characiformes: Characidae)
Fig. 3. Caudal squamation: (a) Hemigrammus tocantinsi, paratype, UFRGS 9907, 27.3 mm SL and (b) Hemigrammus marginatus, MCP 43324, 32.4 mm SL. Scale bars = 1 mm.
Fig. 2 in Hemigrammus tocantinsi: a new species from the upper rio Tocantins basin, Central Brazil (Characiformes: Characidae)
Fig. 2. Hemigrammus tocantinsi, paratype, female, UFRGS 11300, 27.4 mm SL. Scanning electronic micrograph of lower and upper jaws, left side. Scale bar = 1 mm. Maxillary tooth a little dislocated inwardly.
Fig. 6 in Astyanax goyanensis (Miranda-Ribeiro, 1944), new combination and Astyanax courensis, new species (Ostariophysi: Characiformes): two Characidae from the upper rio Tocantins basin, Central Brazil
Fig. 6. Astyanax courensis, new species, UFRGS 11290, 45.0 mm SL. Scanning electronic microscopy images of upper and lower jaws, left side, lateral view. Scale bar = 1 mm.
Fig. 1 in Astyanax goyanensis (Miranda-Ribeiro, 1944), new combination and Astyanax courensis, new species (Ostariophysi: Characiformes): two Characidae from the upper rio Tocantins basin, Central Brazil
Fig. 1. Astyanax goyanensis. (a) MNRJ 4129, holotype, female, 89.2 mm SL; rio dos Couros, Chapada dos Veadeiros, Goiás State, Brazil (anal-fin incomplete); (b) UFRGS 11291, topotype, male, 56.7 mm SL; small stream tributary of rio dos Couros at Parque Portal da Chapada, tributary of rio Tocantinzinho, upper rio Tocantins basin, Alto Paraíso de Goiás, Goiás State, Brazil.
Fig. 8 in Hemigrammus tocantinsi: a new species from the upper rio Tocantins basin, Central Brazil (Characiformes: Characidae)
Fig. 8. Hemigrammus tocantinsi, paratype, spermatozeugmata, UFRGS 11300, 25.1 mm SL. Scale bar = 2 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.