Results 41 to 50 of about 1,613 (195)

Chilling sensitivity of Steindachneridion parahybae (Siluriformes: Pimelodidae) oocytes in different cryoprotectants. [PDF]

Vet Anim Sci, 2019
The viability of post-thaw fish oocytes can be affected by different stages of the freezing process, such as cryoprotectant toxicity, cold sensitivity, freezing curves and thawing. Therefore, these steps need to be investigated for the development of a protocol.
Lopes TDS, Sanches EA, Caneppele D, Silveira MM, Romagosa E.   +4 more
europepmc   +5 more sources

Fish Assemblages in an Urbanized Neotropical Basin: Influence of Environmental Factors Across Dry and Rainy Periods

International Review of Hydrobiology, Volume 111, Issue 2, December 2026.
ABSTRACT This study investigated the effects of season and environmental disturbances on fish communities in neotropical rivers of the Sorocaba basin, a Sub‐Basin of the Paraná River in Southeast Brazil, based on sampling 1196 individuals from 49 species, including two non‐native and one threatened with extinction.
Natalia S. Alves, Daiane E. Cavallari, Welber S. Smith   +2 more
wiley   +1 more source

Comparative anatomy of Weber's apparatus of the calophysus group (siluriformes: pimelodidae) [PDF]

, 2023
Currently, the Pimelodidae family includes the Calophysus group, composed of the genera: Aguarunichthys Stewart, 1986; Calophysus Müller & Troschel, 1843; Cheirocerus Eigenmann, 1917; Luciopimelodus Eigenmann & Eigenmann, 1888; Megalonema Eigenmann, 1912;
Silva, Micael Cavalli de Alencar e
core  

Environmental DNA and Conventional Sampling Capture Complementary Patterns of Ichthyofaunal Diversity in the Selangor River Estuary, Malaysia

Environmental DNA, Volume 8, Issue 4, July‐August 2026.
Mangrove estuaries are a key ecosystem for coastal fishery resources, especially in developing nations such as Malaysia. Using identical sampling points and duration for both eDNA metabarcoding and conventional sampling, fish community analyses highlight shared and unique taxa, variable taxonomic resolution, and the complementarity of eDNA ...
Leanne Frances Yee, Cecilia Chu, Amy Yee‐Hui Then, Tadashi Kajita, Alison Kim Shan Wee   +4 more
wiley   +1 more source

Photoperiod influence on the cultivation of Steindachneridion scriptum (Pisces, Pimelodidae) juvenile [PDF]

Brazilian Archives of Biology and Technology, 2008
This study aimed to evaluate the influence of photoperiod on juvenile suruvi (Steindachneridion scriptum) in six photoperiods: 24L-0D (L= Light; D= Dark), 18L-6D, 14L-10D, 10L-14D, 6L-18D and 0L-24D. Juveniles measuring 176.8 ± 13.2mm and weighing 60.2 ± 16.0g were distributed in eighteen 150-L aquariums, stocked with 8 juveniles per aquarium.
Zaniboni-Filho, Evoy, Reynalte-Tataje, David, Nuñer, Alex Pires de Oliveira, Meurer, Samira   +3 more
openaire   +4 more sources

Sistemática da família Pimelodidae Swainson, 1838 (Teleostei: Siluriformes) [PDF]

, 2012
The catfish family Pimelodidae currently comprises about 100 valid species and although its monophyly has been corroborated by some authors, the relationships within the family are poorly known, and derived features for some genera are lacking.
Rocha, Marcelo Sales
core  

Fossil freshwater fishes from the Pliocene of northern Colombia and the palaeogeography of northern South America

Papers in Palaeontology, Volume 12, Issue 4, July/August 2026.
Abstract Freshwater fishes from the northwestern Colombian Andes are reported from the Pliocene Sincelejo and Ware formations. A total of 10 taxa have been identified, involving two orders, five families and nine genera. Characters from dental morphology, fin spines and cranial bones are provided as taxonomic tools for the study of fossil fishes.
Gustavo A. Ballen, Camilo Montes, Jorge D. Carrillo‐Briceño, Sergio Bogan, Sandra Reinales, Mario C. C. de Pinna, Carlos Jaramillo   +6 more
wiley   +1 more source

Isolation and characterization of microsatellite loci in Pseudoplatystoma corruscans (Siluriformes : Pimelodidae) and cross-species amplification [PDF]

, 2005
A total of five polymorphic microsatellites loci from Pseudoplatystoma corruscans were isolated and characterized. A population survey involving 43 specimens resolved a large number of alleles (range seven to eight among loci) and high observed ...
Pereira, LHG, Foresti, F., Revaldaves, E., Oliveira, C.   +3 more
core   +1 more source

Age and growth of Pimelodella pappenheimi (siluriformes, pimelodidae) from an Atlantic Forest Stream in Southern Brazil

Brazilian Archives of Biology and Technology, 1999
Studies were performed to determine the growth curves in length and weight for Pimelodella pappenheimi in the "das Pombas" stream, a coastal stream susceptible to the flash flood phenomenon.
Marina Faria do Amaral, José Marcelo Rocha Aranha, Márcia Santos de Menezes   +2 more
doaj   +1 more source

Disentangling Environmental, Spatial and Niche Influences on Fish Beta Diversity Along the Sandy Beaches of an Amazonian River

Freshwater Biology, Volume 71, Issue 7, July 2026.
ABSTRACT Beta diversity is an important descriptor of community structuring and it plays a crucial role for understanding the patterns and processes shaping biodiversity at multiple spatial extents. We investigated the influence of local, spatial, landscape factors and niche characteristics on fish beta diversity along the Acre River in Acre, Brazil ...
Ronaldo S. Silva, Lucas P. Oliveira, Naraiana L. Benone, Jean C. G. Ortega, Antonio A. Jardim Jr, Lídia B. Seabra, Fabiano Corrêa, Lisandro J. S. Vieira, Robert M. Hughes, Luciano F. A. Montag   +9 more
wiley   +1 more source