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Fig. 7 in Gill dimensions in near-term embryos of Amazonian freshwater stingrays (Elasmobranchii: Potamotrygonidae) and their relationship to the lifestyle and habitat of neonatal pups

Fig. 7. (A) The relationship between total gill area (cm2) and Relative Opening of the spiracle. (B) Linear regression of the mass-specific gill area (cm2 g-1) and body surface area (cm2) of different potamotrygonid embryos: upsidedown triangle - Plesiotrygon iwamae; star - Paratrygon aiereba; diamond - Potamotrygon motoro (from Negro River); dot - Potamotrygon motoro (from Solimões River); triangle - Potamotrygon orbignyi; square - cururu ray Potamotrygon sp.

Fig. 6 in Gill dimensions in near-term embryos of Amazonian freshwater stingrays (Elasmobranchii: Potamotrygonidae) and their relationship to the lifestyle and habitat of neonatal pups

Fig. 6. The two main axes of a principal component analysis based on total gill area, mass-specific gill area, body mass, total length, Anatomical Diffusion Factor and Relative Opening of Spiracule (ROSp) in the different potamotrygonid embryos: black triangle - Plesiotrygon iwamae; open diamond - Paratrygon aiereba; circle - Potamotrygon motoro (from Negro River); open triangle - Potamotrygon motoro (from Solimões River); black square - Potamotrygon orbignyi; open square - Potamotrygon sp. (cururu ray).

Fig. 5 in Gill dimensions in near-term embryos of Amazonian freshwater stingrays (Elasmobranchii: Potamotrygonidae) and their relationship to the lifestyle and habitat of neonatal pups

Fig. 5. Triplot of log (Anatomic Diffusion Factor) versus log(water/blood barrier thickness) versus log(mass-specific gill area) of the potamotrygonid embryos.

Fig. 3 in Gill dimensions in near-term embryos of Amazonian freshwater stingrays (Elasmobranchii: Potamotrygonidae) and their relationship to the lifestyle and habitat of neonatal pups

Fig. 3. Mass-specific gill area of the anterior and posterior hemibranchs of the gill arches in different potamotrygonid embryos: (A) Potamotrygon orbignyi; (B) Potamotrygon sp.; (C) Potamotrygon motoro (from Negro River); (D) Potamotrygon motoro (from Solimões River); (E) Plesiotrygon iwamae; (F) Paratrygon aiereba.

Fig. 2 in Gill dimensions in near-term embryos of Amazonian freshwater stingrays (Elasmobranchii: Potamotrygonidae) and their relationship to the lifestyle and habitat of neonatal pups

Fig. 2. Total superficial gill area of the anterior and posterior hemibranchs of the gill arches in different potamotrygonid embryos: (A) Potamotrygon orbignyi; (B) Potamotrygon sp.; (C) Potamotrygon motoro (from Negro River); (D) Potamotrygon motoro (from Solimões River); (E) Plesiotrygon iwamae; (F) Paratrygon aiereba.

Fig. 1 in Gill dimensions in near-term embryos of Amazonian freshwater stingrays (Elasmobranchii: Potamotrygonidae) and their relationship to the lifestyle and habitat of neonatal pups

Fig. 1. The potamotrygonid embryos: (A) Potamotrygon orbignyi; (B) cururu ray Potamotrygon sp.; (C) Potamotrygon motoro (from Negro River); (D) Potamotrygon motoro (from Solimões River); (E) Plesiotrygon iwamae; (F) Paratrygon aiereba. Scale bars= 1 cm.

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Fig. 1 in Fish complementarity is associated to forests in Amazonian streams

Fig. 1. Sampled sites along the rio Machado basin and the three main types of soil coverage (left). Hydrography of the rio Machado basin and flow direction of the rio Machado (right).

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Fig. 2 in Fish complementarity is associated to forests in Amazonian streams

Fig. 2. Biplot resulting from the distance based Redundancy Analysis with seven variables (landscape and local). The proportion of forest cover in the watershed, the proportion of grasses in the stream banks, and depth significantly explained the NTI (nearest taxon index) in the studied communities and therefore are represented here. Each community is identified by circles with different sizes according to the NTI values.

Figure 1 in Perception of Amazonian fishers regarding environmental changes as causes of drastic events of fish mortality

Figure 1. Image of the Ilha do Careiro, immediately below the confluence of the Negro and Solimões rivers (Amazonas state), area of black and whitewaters mixing and, inside, the huge floodplain system known as Lago do Rei.

Figure 4. A - Sentinel 2 in Perception of Amazonian fishers regarding environmental changes as causes of drastic events of fish mortality

Figure 4. A - Sentinel 2 satellite image of Lago do Rei on 20th November 2018. B - Sentinel 2 satellite image of the Lago do Rei on 20th June 2018. C - Sentinel 2 satellite image of the Lago do Rei on 15th November 2019. D - Sentinel 2 satellite image of Lago do Rei on 6th January 2020.

Figure 2. A in Perception of Amazonian fishers regarding environmental changes as causes of drastic events of fish mortality

Figure 2. A biplot is showing the years by the number of days with river level below 18 meters and the amplitude (meters) of the annual flood pulse.

Figure 5 in Perception of Amazonian fishers regarding environmental changes as causes of drastic events of fish mortality

Figure 5. Relationship between the river level, measured in the Port of Manaus – Station 14990000, and the Oceanic Niño Index (ONI), from 2009 to 2020, taking as reference the level of disconnection between Lago do Rei and the Amazon River.

Figure 3 in Perception of Amazonian fishers regarding environmental changes as causes of drastic events of fish mortality

Figure 3. Analysis of the water surface of Lago do Rei using the modified normalized difference water index for the years 2015 to 2020.

Figure 5 in Plant metabolite 5-pentadecyl resorcinol is produced by the Amazonian fungus Penicillium sclerotiorum LM 5679

Figure 5. Chemical structure of the isolated substance (5-pentadecyl resorcinol) by Penicillium sclerotiorum LM 5679.

Figure 4. HMBC 150 in Plant metabolite 5-pentadecyl resorcinol is produced by the Amazonian fungus Penicillium sclerotiorum LM 5679

Figure 4. HMBC 150 MHz (a) and HSQC 300 MHz (b) spectrum of the compound produced by Penicillium sclerotiorum LM 5679.

Figure 1 in Plant metabolite 5-pentadecyl resorcinol is produced by the Amazonian fungus Penicillium sclerotiorum LM 5679

Figure 1. Chromatographic fractionation of the compound produced by Penicillium sclerotiorum LM 5679.

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Fig. 1. 2D in Proteomic profile of Ortleppascaris sp.: A helminth parasite of Rhinella marina in the Amazonian region

Fig. 1. 2D gel containing the somatic extract of Ortleppascaris sp. larvae. See Table 1 for details.

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Fig. 5 in Historical biogeography highlights the role of Miocene landscape changes on the diversification of a clade of Amazonian tree frogs

Fig. 5 Dorsolateral views of Osteocephalus. a O. leprieurii sensu stricto, Kaw mountain, French Guiana. b O. leprieurii, AF1824, Mana, French Guiana. c O. yasuni sensu stricto, QCAZ69010, Estación Cientí- fica Yasuní, Orellana, Ecuador. d O. yasuni, QCAZ55994, Lorocachi, Pastaza, Ecuador. e O. deridens, QCAZ56031, Lorocachi, Pastaza, Ecuador. f O. fuscifacies, QCAZ59887, Parque Nacional Llanganates, Pastaza, Ecuador. g O. aff. leoniae 2, AF4513 (sequenced), San Martín, Peru. h O. planiceps, QCAZ55881, Lorocachi, Pastaza, Ecuador. Photographs: a–b, g by Antoine Fouquet; c–f, h by Santiago Ron (BIOWEB, Licence: CC BY-NC-ND 4.0)

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Fig. 4 in Historical biogeography highlights the role of Miocene landscape changes on the diversification of a clade of Amazonian tree frogs

Fig. 4 Dorsolateral and ventral views of Osteocephalus. a O. cabrerai, CORBIDI120, Tara- poa, Sucumbíos, Ecuador. b O. helenae, AF2427 (sequenced), Nassau, Suriname. c O. helenae, Amapá, Brazil. d O. helenae, Voltaire, French Guiana. e–f O. aff. helenae 2 'morph cabrerai', AF2357 (sequenced), Mapaou, French Guiana. g O. aff. helenae 2 'morph cabrerai', AF3358 (sequenced), Bakhuis, Surinam. h O. aff. helenae 2 'morph cabrerai', St. Georges, French Guiana. Photographs: a by Pablo Venegas (BIOWEB, Licence: CC BY-NC-ND 4.0); b–h by Antoine Fouquet