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77 results for “Tocantins River”
Figures 31-36 from: de Freitas ÁJ.B, Bezerra CA.M, Meneses YC, Justo MCN, Viana DC, Cohen SC (2021) Three new species of Urocleidoides (Monogenoidea: Dactylogyridae) parasitizing characiforms (Actinopterygii: Characiformes) in Tocantins River, states of Tocantins and Maranhão, and new record for U. triangulus in Guandu River, state of Rio de Janeiro, Brazil. Zoologia 38: 1-11. https://doi.org/10.3897/zoologia.38.e65001
Figures 31-36 Light photomicrographs of Urocleidoides spp.: (31, 32) Urocleidoides boulengerellae: (31) copulatory complex; (32) vaginal sclerite; (33, 34) Urocleidoides paratriangulus: (33) copulatory complex; (34) haptor; (35, 36) Urocleidoides tocantinensis: (35) copulatory complex; (36) vagina. Scale bars: 31–33, 35–36 = 20 µm, 34 = 40 µm.
Figures 1-3 from: de Freitas ÁJ.B, Bezerra CA.M, Meneses YC, Justo MCN, Viana DC, Cohen SC (2021) Three new species of Urocleidoides (Monogenoidea: Dactylogyridae) parasitizing characiforms (Actinopterygii: Characiformes) in Tocantins River, states of Tocantins and Maranhão, and new record for U. triangulus in Guandu River, state of Rio de Janeiro, Brazil. Zoologia 38: 1-11. https://doi.org/10.3897/zoologia.38.e65001
Figures 1-3 Scheme of measurements of the sclerotized structures of the haptor and male copulatory organ (MCO) of Urocleidoides spp.: (1) anchor: (a) base, (b) total length; (2) ventral bar: (a) length, (b) medial projection; (3) dorsal bar: (a) length.
Figures 4-11 from: de Freitas ÁJ.B, Bezerra CA.M, Meneses YC, Justo MCN, Viana DC, Cohen SC (2021) Three new species of Urocleidoides (Monogenoidea: Dactylogyridae) parasitizing characiforms (Actinopterygii: Characiformes) in Tocantins River, states of Tocantins and Maranhão, and new record for U. triangulus in Guandu River, state of Rio de Janeiro, Brazil. Zoologia 38: 1-11. https://doi.org/10.3897/zoologia.38.e65001
Figures 4-11 Urocleidoides boulengerellae sp. nov. from Boulengerella cuvieri from Tocantins River: (4) total, ventral view; (5) vaginal sclerite and vagina; (6) copulatory complex, ventral view; (7) hook; (8) ventral anchor; (9) dorsal anchor; (10) ventral bar; (11) dorsal bar. Scale bars: 4 = 100 µm, 5 = 20 µm, 6 = 30 µm, 7 = 10 µm, 8–11 = 20 µm.
Figure 9 from: Silva GSC, Roxo FF, Luz E. Ochoa LE, Oliveira C (2016) Description of a new catfish genus (Siluriformes, Loricariidae) from the Tocantins River basin in central Brazil, with comments on the historical zoogeography of the new taxon. ZooKeys 598: 129-157. https://doi.org/10.3897/zookeys.598.7400
Figure 9 - Partial ML tree showing the relationship among the species of the subfamily Otothyrinae. Numbers above the branches are bootstrap values from 1000 bootstrap pseudoreplicates obtained from the ML analysis. Bootstrap values below 50% (-) are not shown.
Figure 8 from: Silva GSC, Roxo FF, Luz E. Ochoa LE, Oliveira C (2016) Description of a new catfish genus (Siluriformes, Loricariidae) from the Tocantins River basin in central Brazil, with comments on the historical zoogeography of the new taxon. ZooKeys 598: 129-157. https://doi.org/10.3897/zookeys.598.7400
Figure 8 - Partial ML tree showing the relationship among the species of the subfamilies Hypoptopomatinae and Neoplecostominae. Numbers above the branches are bootstrap values from 1000 bootstrap pseudoreplicates obtained from the ML analysis. Bootstrap values below 50% (-) are not shown.
Figure 6 from: Silva GSC, Roxo FF, Luz E. Ochoa LE, Oliveira C (2016) Description of a new catfish genus (Siluriformes, Loricariidae) from the Tocantins River basin in central Brazil, with comments on the historical zoogeography of the new taxon. ZooKeys 598: 129-157. https://doi.org/10.3897/zookeys.598.7400
Figure 6 - Microplecostomus forestii sp. n., live specimen, LBP 19319, paratype, 28.4 mm SL, Tocantins River, Goiás state, Brazil. Photograph: MI Taylor.
Figure 7 from: Silva GSC, Roxo FF, Luz E. Ochoa LE, Oliveira C (2016) Description of a new catfish genus (Siluriformes, Loricariidae) from the Tocantins River basin in central Brazil, with comments on the historical zoogeography of the new taxon. ZooKeys 598: 129-157. https://doi.org/10.3897/zookeys.598.7400
Figure 7 - a Map showing the distribution of Microplecostomus forestii sp. n. Type locality at Roncador Stream, red star – 14°43'51.3"S, 47°32'34.0"W. Paratype locality at das Brancas Stream, red circle – 14°53'47.2"S, 47°34'58.4"W. Habitat where Microplecostomus forestii sp. n. is found at b Roncador Stream and c das Brancas Stream. These are small size streams with a depth of less than 1 m, clear water, the bottom covered with loose stones and shaded margins. Photographs: LH Roxo.
Figure 3 from: Silva GSC, Roxo FF, Luz E. Ochoa LE, Oliveira C (2016) Description of a new catfish genus (Siluriformes, Loricariidae) from the Tocantins River basin in central Brazil, with comments on the historical zoogeography of the new taxon. ZooKeys 598: 129-157. https://doi.org/10.3897/zookeys.598.7400
Figure 3 - Microplecostomus forestii sp. n. showing a large area without odontodes around the snout, LBP 19017, 29.0 mm SL.
Figure 5 from: Silva GSC, Roxo FF, Luz E. Ochoa LE, Oliveira C (2016) Description of a new catfish genus (Siluriformes, Loricariidae) from the Tocantins River basin in central Brazil, with comments on the historical zoogeography of the new taxon. ZooKeys 598: 129-157. https://doi.org/10.3897/zookeys.598.7400
Figure 5 - Dorsal view of the head plates in Microplecostomus forestii sp. n., LBP 19017, 29.0 mm SL. CPT = compound pterotic; F = frontal; IO1-5 = infraorbitals; N = nasal; OP = opercle; PR1-4 postrostral plates; PF = prefrontal; PN = prenasal; POP = preopercle; R = rostral plate; SP = sphenotic; CP2 = subocular cheek plate; SOC = parieto-supraoccipital; AD = additional plates.
Figure 4 from: Silva GSC, Roxo FF, Luz E. Ochoa LE, Oliveira C (2016) Description of a new catfish genus (Siluriformes, Loricariidae) from the Tocantins River basin in central Brazil, with comments on the historical zoogeography of the new taxon. ZooKeys 598: 129-157. https://doi.org/10.3897/zookeys.598.7400
Figure 4 - Dorsal view of the caudal peduncle in Microplecostomus forestii sp. n., LBP 19017, 29.0 mm SL, showing the presence of a series of unpaired median plates that form a post-dorsal ridge.
Figure 2 from: Silva GSC, Roxo FF, Luz E. Ochoa LE, Oliveira C (2016) Description of a new catfish genus (Siluriformes, Loricariidae) from the Tocantins River basin in central Brazil, with comments on the historical zoogeography of the new taxon. ZooKeys 598: 129-157. https://doi.org/10.3897/zookeys.598.7400
Figure 2 - Photographs showing a the three hypertrophied bicuspid odontodes on the lateral portion of the body of the holotype of Microplecostomus forestii sp. n., MZUSP 118673; b Detail of the hypertrophied bicuspid odontodes.
Figure 11 from: Silva GSC, Roxo FF, Luz E. Ochoa LE, Oliveira C (2016) Description of a new catfish genus (Siluriformes, Loricariidae) from the Tocantins River basin in central Brazil, with comments on the historical zoogeography of the new taxon. ZooKeys 598: 129-157. https://doi.org/10.3897/zookeys.598.7400
Figure 11 - Time-calibrated phylogeny and ancestral range estimates for the Otothyrinae. Divergence ages were calibrated by the origins of the Siluriformes (120 Mya) and the Callichthyidae (55 Mya).
Figure 1 from: Silva GSC, Roxo FF, Luz E. Ochoa LE, Oliveira C (2016) Description of a new catfish genus (Siluriformes, Loricariidae) from the Tocantins River basin in central Brazil, with comments on the historical zoogeography of the new taxon. ZooKeys 598: 129-157. https://doi.org/10.3897/zookeys.598.7400
Figure 1 - Microplecostomus forestii sp. n., MZUSP 118673, holotype, male, 38.3 mm SL, Goiás state, Brazil, Tocantins River basin.
Figure 10 from: Silva GSC, Roxo FF, Luz E. Ochoa LE, Oliveira C (2016) Description of a new catfish genus (Siluriformes, Loricariidae) from the Tocantins River basin in central Brazil, with comments on the historical zoogeography of the new taxon. ZooKeys 598: 129-157. https://doi.org/10.3897/zookeys.598.7400
Figure 10 - Time-calibrated phylogeny and ancestral range estimates for the Hypoptopomatinae and Neoplecostominae. Divergence ages were calibrated by the origins of the Siluriformes (120 Mya) and the Callichthyidae (55 Mya).
LBA-ECO LC-04 Macrohydrological Routing Data for the Amazon and Tocantins River Basin
This data set provides continental-scale hydrological river flow routing parameter data for the Amazon and Tocantins River basins at 5 minute (~9 km) resolution (Costa et al., 2002). The data set includes four geospatial data files (in standard ESRI Arc/Info ASCII Grid format): (1) the river network (flow direction); (2) sinuosity of each of the main rivers, measured at 111 river sections in the basins; (3) depth to the water table; and (4) transmissivity of the aquifer. The latter two parameters were derived from measurements taken at 81 wells located throughout the basins. There is also a compressed file (*.zip) which contains the time series of monthly mean river discharge and long-term climatology (monthly mean) for the period of record at each of 122 fluviometric stations located throughout the basin. These files are provided in ASCII common-separated (.csv) format. Also included in this data set are two data files in *.csv format; one containing river discharge station location and drainage area information and one containing original well data.
LBA Regional Boundary for the Amazon and Tocantins River Basins, 5-min
This data set is an expanded version of the Costa et al. (2000) data set and consists of a single grid with values of 1 for cells within the basins and 0 for cells outside. The resolution of the data set is 5 x 5 min (approximately 9 x 9 km). The area of this data set is consistent with the study area of the Large Scale Biosphere-Atmosphere Experiment in Amazonia (LBA) in South America. The data file is in ASCII GRID format.
Figure 3 from: Costa WJEM, Amorim PF (2018) A new miniature cryptic species of the seasonal killifish genus Spectrolebias from the Tocantins River basin, central Brazil (Cyprinodontiformes, Aplocheilidae). Zoosystematics and Evolution 94(2): 359-368. https://doi.org/10.3897/zse.94.28085
Figure 3 Specrolebias costae, UFRJ 3549, male, 18.8 mm SL; das Mortes River floodplains.
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