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32 results for “Brachyplatystoma”
Fig. 3 in Upstream dam impacts on gilded catfish Brachyplatystoma rousseauxii (Siluriformes: Pimelodidae) in the Bolivian Amazon
Fig. 3. Mean annual fishing effort and capture per unit effort (CPUE) of Brachyplatystoma rousseauxii (black bars) per month in the Ichilo River before (1998–2007) and after dam closure (2015–2017) using catfish-specific fishing methods. Mean monthly water level (MWL) in Puerto Villarroel for the two sample periods is shown (SENAMHI 2018), with vertical lines representing standard deviation. The horizontal bars show the period when commercial fishing is prohibited.
Fig. 1 in Upstream dam impacts on gilded catfish Brachyplatystoma rousseauxii (Siluriformes: Pimelodidae) in the Bolivian Amazon
Fig. 1. Upper Madeira River basin, showing landing site Puerto Villarroel and fishing area in the Ichilo River (Bolivian Amazon), as well as the Santo Antônio and Jirau dams (Brazilian Amazon).
Fig. 5 in Age and growth of the Amazonian migratory catfish Brachyplatystoma rousseauxii in the Madeira River basin before the construction of dams
Fig. 5. Mean monthly relative marginal increment (RMI ± S.D.) of 357 Brachyplatystoma rousseauxii's otoliths in relation to the hydrological cycle in the Madeira River basin. The values above bars indicate the number of otoliths analysed each month.
Fig. 4a in Age and growth of the Amazonian migratory catfish Brachyplatystoma rousseauxii in the Madeira River basin before the construction of dams
Fig. 4a. Different types of growth rings; and b. their relative proportions, in transverse thin sections of Brachyplatystoma rousseauxii from the Madeira River basin. S-single, D-double, T-triple rings.
Fig. 3 in Breeding, growth and exploitation of Brachyplatystoma rousseauxii Castelnau, 1855 in the Caqueta River, Colombia
Fig. 3. Standard length (LS) frequency histograms and the corresponding von Bertalanffy growth function for a) females, b) males and c) females, males and unsexed individuals combined of Brachyplatystoma rousseauxii in the Caqueta River during the period 1995-1997.
Fig. 4 in Breeding, growth and exploitation of Brachyplatystoma rousseauxii Castelnau, 1855 in the Caqueta River, Colombia
Fig. 4. Standard length at first sexual maturity of Brachyplatystoma rousseauxii males (black dots) and females (white triangles) in the Caqueta River, Colombia.
Fig. 1 in Breeding, growth and exploitation of Brachyplatystoma rousseauxii Castelnau, 1855 in the Caqueta River, Colombia
Fig. 1. Map of the Colombian Amazon, its constitutive departments and the principal fishing zones for Brachyplatystoma rousseauxii (based on Agudelo et al., 2000; Murcia et al., 2007).
Fig. 2 in Breeding, growth and exploitation of Brachyplatystoma rousseauxii Castelnau, 1855 in the Caqueta River, Colombia
Fig. 2. Monthly percentages of breeding (stages 3 and 4) Brachyplatystoma rousseauxii females (white circles) in the Caqueta River, Colombian Amazon, between 1995 and 1997, in relation to the water level (black line).
FIGURE 3 in The most important fishery resource in the Amazon, the migratory catfish Brachyplatystoma vaillantii (Siluriformes: Pimelodidae), is composed by an unique and genetically diverse population in the Solimões-Amazonas River System
FIGURE 3 | Analysis of the BAPS 6.0 program showing three clusters (green, red, and blue) distributed between the five sampled locations of Brachyplatystoma vaillantii.
FIGURE 2 in The most important fishery resource in the Amazon, the migratory catfish Brachyplatystoma vaillantii (Siluriformes: Pimelodidae), is composed by an unique and genetically diverse population in the Solimões-Amazonas River System
FIGURE 2 | Network of Brachyplatystoma vaillantii haplotypes. The number shown within a circle identifies the number of specimens sharing those haplotypes; circles without numbers represent unique haplotypes. White circles represent hypothetical intermediate haplotypes. Each locality is represented by the same colors in Fig. 1: red – Tabatinga, orange – Tefé, green – Manaus, purple – Santarém and blue – Estuary.
FIGURE 1 in The most important fishery resource in the Amazon, the migratory catfish Brachyplatystoma vaillantii (Siluriformes: Pimelodidae), is composed by an unique and genetically diverse population in the Solimões-Amazonas River System
FIGURE 1 | Sampling sites for Brachyplatystoma vaillantii along the Solimões-Amazonas River axis. The localities were grouped in five fishing landing towns as follow: Red circles: Tabatinga (1 – Benjamin Constant, 2 – Tabatinga), Orange circles: Tefé (3 – Mucura Lake, 4 – Tefé, 5 – Vila Nova), Green circles: Manaus (6 – Manaus, 7 – Careiro da Várzea), Purple circles: Santarém (8 – Santarém, 9 – Tapará) and Blues circles: Estuary (10 – Almeirim, 11 – Gurupá, 12 – Breves, 13 – Belém, 14 – Salvaterra).
FIGURE 4 in The most important fishery resource in the Amazon, the migratory catfish Brachyplatystoma vaillantii (Siluriformes: Pimelodidae), is composed by an unique and genetically diverse population in the Solimões-Amazonas River System
FIGURE 4 | Analysis of the FASTBAPS program. Numbers are individual sequence of Brachyplatystoma vaillantii. Colors ranging from red for the lowest probabilities and clear yellow for the highest probabilities support for bootstrap.
Fig. 6 in Brachyplatystoma promagdalena, new species, a fossil goliath catfish (Siluriformes: Pimelodidae) from the Miocene of Colombia, South America
Fig. 6. Weberian complexes in anterior view of the fossil and modern Brachyplatystoma species, a, B. promagdalena, IGM183062, b, B. filamentosum, DU F1052, c, B. rousseauxii, DU F1078, d, B. vaillantii, DU F1034. Scale bars equal to 1 cm. Abbreviations as in Figs. 1 and 2 plus: C1F, central focus of growth rings; TP4T, trough below fourth transverse process.
Fig. 2 in Brachyplatystoma promagdalena, new species, a fossil goliath catfish (Siluriformes: Pimelodidae) from the Miocene of Colombia, South America
Fig. 2. Weberian complexes in ventral view of the fossil and modern Brachyplatystoma species, a, B. promagdalena, IGM183062, b, B. filamentosum, DU F1052, c, B. rousseauxii, DU F1078, d, B. vaillantii, DU F1034. Scale bars equal to 1 cm. Abbreviations as in Fig. 1 plus: AACF, aortic canal anterior foramen; C1, first centrum; C7, seventh centrum; C5-C6, fifth centrum- sixth centrum joint; CC-C5, compound centrum- fifth centrum joint; OS, os suspensorium; PACF, aortic canal posterior foramen; PGB, gas bladder platform; TR, transverse ridge; TRP, tripus.
Fig. 4 in Brachyplatystoma promagdalena, new species, a fossil goliath catfish (Siluriformes: Pimelodidae) from the Miocene of Colombia, South America
Fig. 4. Weberian complex in left lateral view of the fossil and modern Brachyplatystoma species, a. B. promagdalena, IGM183062, b. B. filamentosum, DU F1052, c. B. rousseauxii, DU F1078, d. B. vaillantii, DU F1034. Scale bars equal to 1 cm. Abbreviations as in Figs. 1 and 2 plus: NS5, neural spine of fifth vertebra; NS6, neural spine of sixth vertebra.
Fig. 3 in Brachyplatystoma promagdalena, new species, a fossil goliath catfish (Siluriformes: Pimelodidae) from the Miocene of Colombia, South America
Fig. 3. Weberian complex of the fossil Brachyplatystoma promagdalena, IGM183062; a, ventral view, b, right lateral view. Abbreviations as in Figs. 1 and 2.
Fig. 1 in Brachyplatystoma promagdalena, new species, a fossil goliath catfish (Siluriformes: Pimelodidae) from the Miocene of Colombia, South America
Fig. 1. Weberian complexes in dorsal view of the fossil and modern Brachyplatystoma species, a, B. promagdalena, IGM183062, b, B. filamentosum, DU F1052, from the río Apure, Venezuela; c, B. rousseauxii, DU F1078, from the río Apure, Venezuela; d, B. vaillantii, DU F1034, from the río Apure, Venezuela. Scale bars equal to 1 cm. Abbreviations: ALP, anterolateral processes; ALTP4, anterior limb of fourth transverse process; C1-CC, First centrum-compound centrum joint; MVE, midventral expansion on fifth centrum; NA, neural arch; NC, neural canal; NS4, neural spine of fourth vertebra; PLTP4, posterior limb of fourth transverse process; SBN, spongy bone, TP4C, crests on fourth transverse process, TP5, fifth transverse process; TP6, sixth transverse process.
Fig. 5 in Brachyplatystoma promagdalena, new species, a fossil goliath catfish (Siluriformes: Pimelodidae) from the Miocene of Colombia, South America
Fig. 5. Weberian complex in right lateral view of the fossil and modern Brachyplatystoma species, a. B. promagdalena, IGM183062, b. B. filamentosum, DU F1052, c. B. rousseauxii, DU F1078, d. B. vaillantii, DU F1034. Scale bars equal to 1 cm. Abbreviations as in Figs. 1, 2 and 4.
FIGURE 6 in Early development of Brachyplatystoma juruense (Boulenger, 1898) (Siluriformes: Pimelodidae)
FIGURE 6. Comparative illustration of postflexion larvae of Brachyplatystoma in dorsal view of the head and lateral view of the body, along with their respective adults, horizontally: (a) B. juruense—larval period at 19.19 mm SL and adult at 410.00 mm SL; (b) B. tigrinum—larval period at 17.95 mm SL and adult at 400.00 mm SL; (c) B. rousseauxii—larval period at 16.09 mm SL and adult at 440.80 mm SL; (d) B. capapretum—larval period at 19.59 mm SL and adult at 390.60 mm SL; (e) B. filamentosum—larval period at 10.96 mm SL and adult at 370.00 mm SL; and (f) B. vaillantii—larval period at 13.21 mm SL and adult at 350.00 mm SL. Scale bar for larvae = 1 mm and for adults = 10 mm.
FIGURE 1 in Early development of Brachyplatystoma juruense (Boulenger, 1898) (Siluriformes: Pimelodidae)
FIGURE 1. Location of the sampling stations for larvae and juveniles of Brachyplatystoma juruense used in the study, Amazon basin, Brazil.
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