Results 21 to 30 of about 202 (97)

Depredación de Noctilio albiventris (Chiroptera: Noctilionidae) por Pseudopimelodus schultzi (Siluriformes: Pseudopimelodidae) en la cuenca del río La Vieja, Colombia [PDF]

open access: yesTherya, 2015
Introduction: Trophic interactions between fishermen and fish bats are common and most of the times the bat is the predator and fish, the prey. However, so far they have not been registered opposite events. Methods: During a sampling sesion of fish in the the river basin of La Vieja, high Cauca (Colombia) in 2009, a toad catfish Pseudopimelodus ...
Alvaro Botero-Botero   +3 more
openaire   +1 more source

Cytogenetic analysis of three catfish species of the family Pseudopimelodidae (Teleostei, Siluriformes)

open access: yesGenetics and Molecular Biology, 2008
Cytogenetic analyses performed in Cephalosilurus apurensis, Microglanis aff. cottoides and Pseudopimelodus bufonius revealed that the three species have 2n = 54 chromosomes: C.
Emanuel Ricardo Monteiro Martinez   +4 more
doaj   +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

Illuminating the Dark: Using eDNA Metabarcoding to Study the Unique Ichthyofauna of the Furnas Formation Sinkholes

open access: yesEnvironmental DNA, Volume 7, Issue 4, July–August 2025.
Using eDNA metabarcoding, we assessed fish diversity in isolated sinkholes in southern Brazil, uncovering signs of local extinction and species persistence. This approach offers a non‐invasive tool for biodiversity assessment and informs conservation efforts in unique karst environments.
Luz E. De la Ossa‐Guerra   +5 more
wiley   +1 more source

Ichthyological diversity of Inambari River, Madre de Dios, Peru

open access: yesRevista Peruana de Biología, 2008
The main purposes of this study were to know the diversity of fishes in the Inambari river basin, at Mazuco district, (Madre de Dios) and the state of conservation of the aquatic habitats.
Vanessa Palacios, Hernán Ortega
doaj   +1 more source

Nuclear DNA content in 20 species of Siluriformes (Teleostei: Ostariophysi) from the Neotropical region

open access: yesGenetics and Molecular Biology, 2004
In the present study, 20 species of Siluriformes fish were analyzed in order to determine their nuclear DNA content and compare these data with their diploid number.
Paulo César Fenerich   +2 more
doaj   +1 more source

Pimelodus (Pseudopimelodus) raninus Cuv. Val.

open access: yes, 1877
Published as part of W. Peters, 1877, Hr. W. Peters las ueber die von Hrn. Dr. C. Sachs in Venezuela gesammelten Fische., pp. 469-473 in Monatsberichte der Akademie der Wissenschaft zu Berlin 1877 on page 470, DOI: 10.5281/zenodo ...
openaire   +1 more source

Biologia reprodutiva e desova induzida de duas espécies de bagres (Osteichthyes: Siluriformes) da bacia do rio São Francisco = Reproductive biology and induced spawning of two catfish species (Osteichthyes: Siluriformes) from the São Francisco river basin

open access: yesActa Scientiarum: Biological Sciences, 2006
Rhamdia quelen e Pseudopimelodus charus são dois bagres que atingem porte acima de 2 kg. Espécimes receberam dose única de extrato bruto de hipófise de carpa comum EBHC (2,5 mg kg-1 de peixe nos machos e 6 mg kg-1 de peixe nas fêmeas).
Edson Vieira Sampaio, Yoshimi Sato
doaj  

Development of habitat suitability criteria for Neotropical stream fishes and an assessment of their transferability to streams with different conservation status

open access: yesNeotropical Ichthyology
We assessed the preference of 10 fish species for depth and velocity conditions in forested streams from southeastern Brazil using habitat suitability criteria (HSC curves).
Fabrício Barreto Teresa, Lilian Casatti
doaj   +1 more source

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