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38 results for “Pseudoplatystoma”
FIGURE 7 in Age validation and contrasted growth performances of Pseudoplatystoma punctifer (Siluriformes: Pimelodidae) in two river systems of the Western Amazon
FIGURE 7 | Standard length at first sexual maturity (L50) of Pseudoplatystoma punctifer in the A–B. AMU system and C–D. Putumayo River.
FIGURE 2 in Age validation and contrasted growth performances of Pseudoplatystoma punctifer (Siluriformes: Pimelodidae) in two river systems of the Western Amazon
FIGURE 2 | Standard length frequency distributions of Pseudoplatystoma punctifer females (left) and males (right) in the A–B. AMU system and C–D. Putumayo River.
FIGURE 3 in Age validation and contrasted growth performances of Pseudoplatystoma punctifer (Siluriformes: Pimelodidae) in two river systems of the Western Amazon
FIGURE 3 | Pseudoplatystoma punctifer vertebrae showing A–B. Five growth rings: the first one is multiple, the second one double and the third, fourth and fifth are simple, C–D. Two growth rings and E–F. One growth ring. Vertebrae center (ctr), hyaline rings (red lines), intermediate mark (i), pre mark (p). Left images: vertebrae frontal view. Right images: vertebrae cross section view with the confirmation of the rings on the corpus calcareum.
FIGURE 1 in Age validation and contrasted growth performances of Pseudoplatystoma punctifer (Siluriformes: Pimelodidae) in two river systems of the Western Amazon
FIGURE 1 | Map of sampling sites of Pseudoplatystoma punctifer in the Peruvian Amazon River systems. Sampling sites are symbolized by red dots.
FIGURE 5 in Dimethyl acetamide and dimethyl sulfoxide associated at glucose and egg yolk for cryopreservation of Pseudoplatystoma corruscans semen
FIGURE 5 | Morphological analysis of thawed sperm from Pseudoplatystoma corruscans. A. Sperm with changes in the head, rupture of the membrane and damage to the intermediate part. B. Curled flagellum. C. Spermatozoon with damage to the head, intermediate piece and flagellum. D. Sperm head with changes in the head, damage to the membrane and damage to the intermediate part. Legends: ● = membrane rupture, * = possible cytoplasmic material, # = flagellar fibers, ♦ = cytoplasmic gout. Scale bars; A, B, and D = 2 µm; C = 5 µm.
FIGURE 4 in Dimethyl acetamide and dimethyl sulfoxide associated at glucose and egg yolk for cryopreservation of Pseudoplatystoma corruscans semen
FIGURE 4 | Analysis of the sperm movement of thawed semen from Pseudoplatystoma corruscans. A. Total motility (MT), B. Curvilinear velocity (VCL, µm/s), C. Straight line velocity (VSL, µm/s), D. Average path velocity (VAP, µm/s). Same letters indicate no significant differences (P <0.05).
FIGURE 2 in Dimethyl acetamide and dimethyl sulfoxide associated at glucose and egg yolk for cryopreservation of Pseudoplatystoma corruscans semen
FIGURE 2 | Fluorescence photomicrograph of nuclei with different classes of damage assessed by the Comet Assay analysis: 0, no apparent damage; 1, little damage; 2, average damage; 3, major damage. Scale bars = 95 µm.
FIGURE 1 in Dimethyl acetamide and dimethyl sulfoxide associated at glucose and egg yolk for cryopreservation of Pseudoplatystoma corruscans semen
FIGURE 1 | Adult male specimen of Pseudoplatystoma corruscans, belonging to the Hydrobiology Station of the Jupiá Hydroelectric Plant.
FIGURE 6 in Dimethyl acetamide and dimethyl sulfoxide associated at glucose and egg yolk for cryopreservation of Pseudoplatystoma corruscans semen
FIGURE 6 | Index of damage caused to DNA by the cryopreservation process of semen from Pseudoplatystoma corruscans. Different letters indicate significant differences (P <0.05), by the Turkey test.
FIGURE 3 in Dimethyl acetamide and dimethyl sulfoxide associated at glucose and egg yolk for cryopreservation of Pseudoplatystoma corruscans semen
FIGURE 3 | Morphological characteristics of the Pseudoplatystoma corruscans sperm. A and B, normal spermatozoa; C and D, sperm with malformations. Legends: h1, width; h2, length; mp, intermediate part; #, sperm without the flagellum; c, curled tail; rmp, reduced middle piece. Scale bars; A and C = 20 µm; B and D = 5 µm.
Linked collectors and determiners for: Taxonomy of the catfish genus Pseudoplatystoma Bleeker (Siluriformes: Pimelodidae) with recognition of eight species..
Natural history specimen data linked to collectors and determiners held within, "Taxonomy of the catfish genus Pseudoplatystoma Bleeker (Siluriformes: Pimelodidae) with recognition of eight species.". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/559d3326-742b-4d51-a2a5-3a17be2aadd1">https://bionomia.net/dataset/559d3326-742b-4d51-a2a5-3a17be2aadd1</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/559d3326-742b-4d51-a2a5-3a17be2aadd1">https://gbif.org/dataset/559d3326-742b-4d51-a2a5-3a17be2aadd1</a>. Formatted as a Frictionless Data package.
FIGURE 1 in Age and growth of Pseudoplatystoma corruscans (Siluriformes: Pimelodidae) at the confluence of the Paraná and Paraguay rivers
FIGURE 1 | Geographic location of Antequera port, the study area, and detail of the fishing area.
FIGURE 1 in Population genetics of the endangered catfish Pseudoplatystoma magdaleniatum (Siluriformes: Pimelodidae) based on species-specific microsatellite loci
FIGURE 1 | Sampling sites of Pseudoplatystoma magdaleniatum in the Magdalena-Cauca basin.
Fig. 2 in Life-history characteristics of Pseudoplatystoma metaense (Teleostei: Siluriformes: Pimelodidae) from the northwestern Orinoco River Basin
Fig. 2. Results of Periodic Regression Model fit to MIA values (dots) for asteriscus otoliths of Pseudoplatystoma metaense (solid line) compared with Apure River flood cycle (dashed line), for the periods June 2000-May 2001 and June 2002-April 2003. Arrows indicate approximate times of opaque zone (annulus) formation in the otoliths.
Fig. 1 in Life-history characteristics of Pseudoplatystoma metaense (Teleostei: Siluriformes: Pimelodidae) from the northwestern Orinoco River Basin
Fig. 1. Location of the sampling points in the study area of the northwestern Orinoco River Basin of the fishery for Pseudoplatystoma metaense.
Fig. 4 in Life-history characteristics of Pseudoplatystoma metaense (Teleostei: Siluriformes: Pimelodidae) from the northwestern Orinoco River Basin
Fig. 4. Age-frequency distributions of Pseudoplatystoma metaense in the northwestern Orinoco River Basin fishery from different years: a)1996; b)1997; c) 1998; d) 1999; e) 2000; f) 2001; g) 2002 and h) 2003.
Fig. 3 in Life-history characteristics of Pseudoplatystoma metaense (Teleostei: Siluriformes: Pimelodidae) from the northwestern Orinoco River Basin
Fig. 3. Estimated von Bertalanffy growth curves for males (circles) and females (triangles) fitted to length-atage data from otoliths for Pseudoplatystoma metaense in northwestern Orinoco River Basin during 1996-2003 (model parameters presented in Tab.1).
Fig. 2 in Bile acids as potential pheromones in pintado catfish Pseudoplatystoma corruscans (Spix & Agassiz, 1829): eletrophysiological and behavioral studies
Fig. 2. Remained response magnitudes at 10-7 M during adaptation to 10-7 M taurocholic acid (TCA) and 10-7 M taurochenodeoxycholic (TCD). Responses are expressed as percentages of the response to the standard 10-5 M Arginine (L-ARG). CA = Cholic acid, TCA = taurocholic acid, TCD = taurochenodeoxicholic acid, CD = chenodeoxycholic acid, DC = deoxycholic acid.
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