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Fig. 3 in Cytogenetic and DNA barcoding reveals high divergence within the trahira, Hoplias malabaricus (Characiformes: Erythrinidae) from the lower Amazon River
Fig. 3. Phylogenetic trees of Hoplias malabaricus haplotypes based on COI mitochondrial gene sequences. a) Neighbor-Joining; b) Maximum likelihood and c) Maximum Parsimony. Values in the nodes indicate the statistical support from bootstrap test.
Fig. 2. C in Cytogenetic and DNA barcoding reveals high divergence within the trahira, Hoplias malabaricus (Characiformes: Erythrinidae) from the lower Amazon River
Fig. 2. C-banded karyotype of karyomorph C of Hoplias malabaricus, from lower Amazonas River. M - metacentric, SM - submetacentric. Bar = 10µm.
Fig. 1 in Cytogenetic and DNA barcoding reveals high divergence within the trahira, Hoplias malabaricus (Characiformes: Erythrinidae) from the lower Amazon River
Fig. 1. Map of collection sites of Hoplias malabaricus in the lower Amazonas River. Localities: 1 - Sapucuá lake; 2 - Óbidos; 3 - Juá lake; 4 - Urumari stream; 5 - Maicá lake; 6 - Almeirim. A map of Brazil (box on left corner) with the Pará State shaded in gray indicates the studied area by a white rectangle.
Figure 3 in Histological biomarkers and biometric data on trahira Hoplias malabaricus (Pisces, Characiformes, Erythrinidae): a bioindicator species in the Mearim river, Brazilian Amazon
Figure 3. Values of Bernet et al. (1999) index and Poleksic and Mitrovic-Tutundzic (1994) (HAI), in the dry and rainy seasons.
Figure 2 in Histological biomarkers and biometric data on trahira Hoplias malabaricus (Pisces, Characiformes, Erythrinidae): a bioindicator species in the Mearim river, Brazilian Amazon
Figure 2. Histological lesions in H. malabaricus. (A) Normal gill tissue; (B) aneurysm (arrow); (C) epithelial displacement (arrow); and (D) congestion (arrow).
Figure 1 in Histological biomarkers and biometric data on trahira Hoplias malabaricus (Pisces, Characiformes, Erythrinidae): a bioindicator species in the Mearim river, Brazilian Amazon
Figure 1. Location of the Mearim River stretches in the Baixada Maranhense Environmental Protection Area: Engenho Grande village (A1) and Curral da Igreja village (A2).
FIGURE 4 in Integrative taxonomy reveals disjunct distribution and first record of Hoplias misionera (Characiformes: Erythrinidae) in the Amazon River basin: morphological, DNA barcoding and cytogenetic considerations
FIGURE 4 | Neighbor joining (NJ) tree of Hoplias inferred from partial COI (Cytochrome c Oxidase Subunit I gene) sequences using the Kimura 2-parameter model. The lateral bar indicates the partitions of species delimitation performed by the GMYC, ABGD and BIN analysis. The clade Hoplias misionera nested individuals from the La Plata and Amazon basins (blue tips).
FIGURE 7 in Integrative taxonomy reveals disjunct distribution and first record of Hoplias misionera (Characiformes: Erythrinidae) in the Amazon River basin: morphological, DNA barcoding and cytogenetic considerations
FIGURE 7 | Updated distribution map of Hoplias misionera showing former known localities in Argentina and southern Brazil (Rosso et al., 2016) and the new records from Amazon basin (triangles). Star = type locality.
FIGURE 1 in Integrative taxonomy reveals disjunct distribution and first record of Hoplias misionera (Characiformes: Erythrinidae) in the Amazon River basin: morphological, DNA barcoding and cytogenetic considerations
FIGURE 1 | Hoplias misionera, UFOPA AMTRA131-19, 237 mm SL, Amazonas River, Alenquer, Pará, Brazil. Lateral view. Scale bar = 1 cm. Photo by L.R.R. Rodrigues.
FIGURE 2 in Integrative taxonomy reveals disjunct distribution and first record of Hoplias misionera (Characiformes: Erythrinidae) in the Amazon River basin: morphological, DNA barcoding and cytogenetic considerations
FIGURE 2 | Configuration of the medial margins of the dentary in Hoplias misionera. A. Y-shaped, UFOPA AMTRA126-19, 214 mm SL. B. V-shaped, UFOPA AMTRA127-19, 232 mm SL. Scale bars = 1 cm. Photos by L. R. R. Rodrigues. Illustration by T. M. A. Lima.
FIGURE 6 in Integrative taxonomy reveals disjunct distribution and first record of Hoplias misionera (Characiformes: Erythrinidae) in the Amazon River basin: morphological, DNA barcoding and cytogenetic considerations
FIGURE 6 | Partial idiogram of the four largest chromosome pairs of Hoplias malabaricus (karyomorphs C and F) and H. misionera showing marked size reduction from the first to second metacentric pair only in the karyomorph F.
FIGURE 3 in Integrative taxonomy reveals disjunct distribution and first record of Hoplias misionera (Characiformes: Erythrinidae) in the Amazon River basin: morphological, DNA barcoding and cytogenetic considerations
FIGURE 3 | Last vertical series of scales on the base of the caudal-fin rays. Comparison between Hoplias misionera (A), UFOPA AMTRA131-19, 237 mm SL and Hoplias cf. malabaricus (B), UFOPA AMTRA110, 201 mm SL. Scale bars = 1 cm. Photos by L. R. R. Rodrigues. Illustration by T. M. A. Lima.
FIGURE 5 in Integrative taxonomy reveals disjunct distribution and first record of Hoplias misionera (Characiformes: Erythrinidae) in the Amazon River basin: morphological, DNA barcoding and cytogenetic considerations
FIGURE 5 | Karyotype of Hoplias misionera from Amazon basin (2n=40 chromosomes). Conventional Giemsa stained (A), C-banded (B) and mapping of 18S rDNA FISH probes (green signals) (C). The Ag-NOR bearing chromosomes are showed in the box.
Fig. 6 in Biology of growth of Hoplias aff. malabaricus (Bloch, 1794) in a shallow pampean lake (Argentina)
Fig. 6. Von Bertalanffy growth curves of trahira Hoplias aff. malabaricus obtained by several studies in South America (see Table 2 for sources information): Yalca summer group 1, Y1; Yalca spring group, Y2; Chascomús, C; Indio Muerto, IM; Monte, M; Lobos, L; Cienaga Grande de Lorica, CGL; Amanari Maranguepe female, AM f; Amanari Maranguepe male, AM m.
Fig. 3 in Biology of growth of Hoplias aff. malabaricus (Bloch, 1794) in a shallow pampean lake (Argentina)
Fig. 3. Frequency distribution of total lengths of the trahira Hoplias aff. malabaricus captured during the entire sampling period.
Fig. 5 in Biology of growth of Hoplias aff. malabaricus (Bloch, 1794) in a shallow pampean lake (Argentina)
Fig. 5. Trahira annual variation of observed individual Gonadosomatic index (GSI) and its respective fitted model, and expanded condition index (Knexp) curve (a). Mean relative marginal-increment scale index (MI%) and its respective standard deviations at each sampling date with the corresponding fitted model. Asterisk in MI (%) curve indicates the mean date of ring formation. Different letters below the MI% mean values indicate significant differences (p<0.05) (b).
Fig. 1 in Biology of growth of Hoplias aff. malabaricus (Bloch, 1794) in a shallow pampean lake (Argentina)
Fig. 1. Geographical location of Yalca Lake and its geographical position in south America. The sampling stations in the lake are indicated.
Fig. 3 in Pleistocene karyotypic divergence in Hoplias malabaricus (Bloch, 1794) (Teleostei: Erythrinidae) populations in southeastern Brazil
Fig. 3. Variable Ag-NOR patterns in populations of H. malabaricus from middle rio Doce lakes. A-1, A-2, and B1, B-2 male and female NORs.
Fig. 4 in Pleistocene karyotypic divergence in Hoplias malabaricus (Bloch, 1794) (Teleostei: Erythrinidae) populations in southeastern Brazil
Fig. 4. Patterns of GC-rich regions in H. malabaricus from middle rio Doce lakes. A - karyomorph B male, B - karyomorph B female, and C - karyomorph A.
Fig. 2 in Karyotypic diversity between allopatric populations of the group Hoplias malabaricus (Characiformes: Erythrinidae): evolutionary and biogeographic considerations
Fig. 2. Hoplias malabaricus karyotypes (karyomorph A) with fluorescent in situ hybridization (FISH) using 5S rDNA (a, d, g), 18S rDNA (b, e, h) and 5SHindIII satellite DNA (c, f, i) probes in the populations from the basins of the São Francisco (a, b, c), Araguaia (d, e, f) and Xingu (g, h, i) Rivers. Scale bar = 5μm.
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