Results 61 to 70 of about 5,672 (255)

HEMOGLOBINAS EM SILURIFORMES DA AMAZÔNIA CENTRAL. III CARACTERIZAÇÃO IMUNOLÓGICA DE ALGUNS BAGRES E CASCUDOS. [PDF]

open access: yesActa Amazonica, 1983
Resumo Hemoglobinas de peixes Siluriformes pertencentes às famílias Doradidae; Auchenipteridae; Pimelodidae; Angeneiosidae; Loricariidae e Callichthyidae foram testadas contra anti-soros preparados para hemoglobina de Oxydoras niger (Doradidae: cuiú-cuiú)
Maria Isabel G. Portus   +3 more
doaj   +1 more source

CLOFFAR - update 3 - supplement to Checklist of the Freshwater Fishes of Argentina [PDF]

open access: yes, 2017
In May 2016 we have published the second update to CLOFFAR and in these few months a total of 22 changes have summed up. The total number of fishes known from the freshwaters of Argentina has increased to 538, caused by one new Hoplias and 13 first ...
Koerber, Stefan   +2 more
core  

Local Environmental Variables Predict Fish Species Richness and Composition in Sand Beaches of a Neotropical River

open access: yesRiver Research and Applications, Volume 41, Issue 9, Page 1949-1958, November 2025.
ABSTRACT Local and regional species diversity is influenced by historical factors, resource availability, biotic interactions, the presence of resources, and adequate environmental conditions. We evaluated the effects of local environmental variables and spatial structure on fish species richness and composition along sandy beaches of a Neotropical ...
Ronaldo Souza da Silva   +8 more
wiley   +1 more source

Karyotype variability in neotropical catfishes of the family Pimelodidae (Teleostei: Siluriformes)

open access: yesNeotropical Ichthyology
Karyotypic data are presented for four species of fish belonging to the Pimelodidae family. These species show a conserved diploid number, 2n = 56 chromosomes, with different karyotypic formulae.
Américo Moraes Neto   +6 more
doaj   +1 more source

Hemoglobinas em silurídeos da Amazônia Central: I. Análise eletroforética dos hemolisados. [PDF]

open access: yesActa Amazonica, 1982
Resumo Os hemolisados das espécies de Silurídeos (bagres e cascudos) pertencentes às famílias: Doradidae, Auchenipteridae, Pimelodidae, Ageneiosidae, Callicthyidae e Loricariidae, foram analisados por eletroforese em gel de poliacrilamida.
Maria Isabel G. Portus   +2 more
doaj   +1 more source

Use of probiotics in the catfish Sorubim cuspicaudus larviculture

open access: yesRevista Colombiana de Biotecnología, 2023
Sorubim cuspicaudus, a migratory catfish distributed in the Magdalena, Sinú, and Catatumbo river basins, is categorized as vulnerable to extinction. Production of fingerlings in controlled environments stands as a strategic conservation approach, and ...
Edwin Herrera-Cruz   +5 more
doaj   +1 more source

Cytogenetic studies on fishes of the family pimelodidae (siluroidei) [PDF]

open access: yes, 2014
Four fish species of the family Pimelodidae were analyzed. Bergiaria westermani and two different Pimelodus species have the same diploid chromosome number (2n - 56). Despite some differences in chromosome structure, these species are highly similar in karyotype and differ from Pimelodella sp., which presents a reduction in chromosome number to 2n = 46.
Dias, A. L., Foresti, F.
openaire   +1 more source

Evaluation of indicators of exposure to contaminants in three species of Colombian catfishes (Pisces: Siluriformes)

open access: yesBiota Colombiana, 2014
Mature specimens of three catfishes: Capitán de la Sabana (Eremophilus mutisii), Bagre Rayado (Pseudoplatystoma orinocoense and P. metaense) and Capaz (Pimelodus grosskopfii) (n=9-27/species) were sampled in the areas of Bogotá River, Puerto López (Meta)
Jaime González M.   +5 more
doaj   +1 more source

Applications of next-generation sequencing technologies and computational tools in molecular evolution and aquatic animals conservation studies : a short review [PDF]

open access: yes, 2019
Aquatic ecosystems that form major biodiversity hotspots are critically threatened due to environmental and anthropogenic stressors. We believe that, in this genomic era, computational methods can be applied to promote aquatic biodiversity conservation ...
Afiqah-Aleng, Nor   +8 more
core   +1 more source

Evolutionary history of Middle American Rhamdia (Siluriformes: Heptapteridae) inferred from comparative mitogenomic data: Insights on historical biogeography and cave colonization in the group

open access: yesJournal of Systematics and Evolution, Volume 63, Issue 6, Page 1501-1518, November 2025.
Investigating the systematics and biogeography of Neotropical catfishes of the genus Rhamdia refined phylogenetic hypotheses, including deep paraphyly of Rhamdia laticauda, supported northward dispersal catalyzed by emergence of the Panamanian Isthmus and imply that cave colonization is widespread, convergent, and recent, with established cave‐dwelling
Jairo Arroyave   +6 more
wiley   +1 more source

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