Results 71 to 80 of about 418 (159)

Fig. 3 in Interspecific chromosomal divergences in the genus Characidium (Teleostei: Characiformes: Crenuchidae)

, 2010
Fig. 3. Karyotypes of female specimens of Characidium pterostictum from Apiaí, SP, after conventional Giemsa staining (a) and C-banding (b). Note the differential patterns of heterochromatic blocks on the Z and W chromosomes and the heterochromatic B ...
Paiva, Luiz Ricardo de Souza, Alves, José Carlos Pansonato, Oliveira, Claudio, Foresti, Fausto   +3 more
core   +1 more source

FIG. 7 in Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species

, 2021
FIG. 7. Dorsal, lateral, and ventral views of Characidium declivirostre in life, AUM 56680, 55.5 mm SL; Raudales Danto, Río Cuao, Amazonas, Venezuela. Photos by N. K. Lujan.Published as part of Armbruster, Jonathan W., Lujan, Nathan K. & Bloom, Devin D.,
Bloom, Devin D., Armbruster, Jonathan W., Lujan, Nathan K.   +2 more
core   +1 more source

Cytogenetic Analysis of A-, B-chromosomes and ZZ/ZW Sex Chromosomes of Characidium gomesi (Teleostei, Characiformes, Crenuchidae)

CYTOLOGIA, 2004
Different cytogenetic techniques were used to analyze the chromosomes of Characidium gomesi with the main objective of comparing the base composition of ZZ/ZW sex-chromosomes, B-chromosomes and the heterochromatin of A-chromosomes. The results of digestion of chromosomes with AluI restriction endonuclease (RE), silver and CMA3 staining, C-banding and ...
Maistro, Edson Luis, Jesus, Célia Maria de, Oliveira, Claudio, Moreira-Filho, Orlando, Foresti, Fausto   +4 more
openaire   +4 more sources

Assessing fish diversity in abandoned mining ponds in Madre de Dios, Peru, using environmental DNA

Environmental DNA, Volume 6, Issue 1, January–February 2024.
We surveyed four lentic systems in Madre de Dios, Peru: two abandoned mining ponds created by ASGM and two unmined oxbow lakes as a reference to assess fish recolonization. We compared two alternative eDNA processing methods and contrasted our results with historic data from traditional biodiversity monitoring. Our results indicate that eDNA could be a
Camila Timana‐Mendoza, Alonso Reyes‐Calderon, Patrick Venail, Julio M. Araújo‐Flores, Mónica C. Santa‐Maria   +4 more
wiley   +1 more source

Fig. 6. Z in Interspecific chromosomal divergences in the genus Characidium (Teleostei: Characiformes: Crenuchidae)

, 2010
Fig. 6. Z an W sex chromosomes of the Characidium species analyzed in this study, after C-banding (first row) and silver nitrate staining (second row). Note the different distribution of the heterochromatin, mainly in the W chromosome in (a) C. schubarti,
Paiva, Luiz Ricardo de Souza, Alves, José Carlos Pansonato, Oliveira, Claudio, Foresti, Fausto   +3 more
core   +1 more source

FIG. 1 in Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species

, 2021
FIG. 1. Thickened, keratinized pads on the undersurface of the anterior pectoral-fin rays of (A) Characidium wangyapoik, new species, CSBD F-3615, holotype, and (B) C. crandellii, AUM 67142. Photos by N. K. Lujan.Published as part of <i>Armbruster,
Bloom, Devin D., Armbruster, Jonathan W., Lujan, Nathan K.   +2 more
core   +1 more source

FIG. 10 in Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species

, 2021
FIG. 10. Lateral view (top) of Characidium duplicatum, new species, in life and dorsal, lateral, and ventral views after preservation, CSBD F-3614, holotype, 39.4 mm SL. Photos by J. W.
Bloom, Devin D., Armbruster, Jonathan W., Lujan, Nathan K.   +2 more
core   +1 more source

Figure 4 in The monophyly of Crenuchinae and description of two new species of Poecilocharax (Teleostei: Crenuchidae) based on phenotypic and genotypic evidence

, 2022
Figure 4. SEM photograph of the of neurocranium of Poecilocharax callipterus sp. nov. in frontal view, paratype, male, 28.1 mm SL. Epiphyseal branch of the supraorbital laterosensory canal (EP), foramina (FO), frontal bone (FR), mesethmoid (ME) and ...
Pastana, Murilo, Ohara, Willian M., Camelier, Priscila   +2 more
core   +1 more source

FIG. 3 in Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species

, 2021
FIG. 3. Plot of the ratio of orbital diameter to head length versus standard length for all measured specimens of fast-water Characidium of the Guiana Shield showing allometry in eye size.Published as part of <i>Armbruster, Jonathan W., Lujan ...
Bloom, Devin D., Armbruster, Jonathan W., Lujan, Nathan K.   +2 more
core   +1 more source

Structure and integrity of fish assemblages in streams associated to conservation units in Central Brazil

Neotropical Ichthyology
This study aims to characterize the spatial and seasonal distribution of the fish assemblage and evaluate the integrity of streams in a sustainable use area that includes integral protection conservation units in Distrito Federal, Central Brazil (Cerrado
Thiago Belisário d'Araújo Couto, Pedro De Podestà Uchôa de Aquino   +1 more
doaj   +1 more source