Results 51 to 60 of about 311 (140)

Sobrevivência de alevinos de Prochilodus lineatus (Valenciennes) submetidos a valores extremos de pH

Acta Scientiarum: Animal Sciences, 2008
A determinação dos níveis letais de pH é informação essencial para o cultivo de determinada espécie de peixe, haja vista que a tolerância do pH varia com a espécie.
Evoy Zaniboni Filho, Samira Meurer, Jaqueline L. Golombleski, Lenise V. F. Silva, Bernardo Baldisserotto   +4 more
doaj   +1 more source

Prochilodontidae Eigenmann 1909

, 2014
Family Prochilodontidae Eigenmann 1909 Name in prevailing recent practice, Article 35.5 Pacini Bleeker 1859d:XXXII [ref. 371] (stirps) Pacu Prochilodinae Eigenmann 1909b:253 [ref. 1223] (subfamily) Prochilodus [genus inferred from the stem, Article 11.7.1.1; stem corrected to Prochilodont- by Regan 1911e:21 [ref.
Laan, Richard Van Der, Eschmeyer, William N., Fricke, Ronald   +2 more
openaire   +2 more sources

Nuclear DNA content determination in Characiformes fish (Teleostei, Ostariophysi) from the Neotropical region

Genetics and Molecular Biology, 2002
In the present study, nuclear DNA content was analyzed in 53 species of Characiformes fish from the Neotropical region. Diploid number ranged from 2n = 48 in Astyanax fasciatus, Gymnocorymbus ternetzi and Hyphessobrycon griemi to 2n = 102 in Potamorhina ...
Margarida Lima Carvalho, Claudio Oliveira, Maria Clara Navarrete, Otávio Froehlich, Fausto Foresti   +4 more
doaj   +1 more source

Transmission Behavior of B Chromosomes in Prochilodus lineatus (Characiformes, Prochilodontidae).

Cytogenetic and genome research, 2016
The population of Prochilodus lineatus found in the Mogi-Guaçu River is karyotypically polymorphic, carrying acrocentric, metacentric, and submetacentric B chromosomes. The analysis of each B chromosome frequency in this species revealed a variation in the distribution pattern, with the metacentric type having the highest frequency (73.30%), followed ...
Penitente, Manolo, Daniel, Sandro N., Senhorini, José A., Foresti, Fausto, Porto-Foresti, Fábio   +4 more
openaire   +3 more sources

Karyotypic characterization of Prochilodus mariae, Semaprochilodus kneri and S. laticeps(Teleostei: Prochilodontidae) from Caicara del Orinoco, Venezuela

Neotropical Ichthyology
Fish of the family Prochilodontidae are considered one of the most important components of commercial and subsistence fishery in freshwater environments in South America. This family consists of 21 species and three genera.
Claudio Oliveira, Mauro Nirchio, Ángel Granado, Sara Levy   +3 more
doaj   +1 more source

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

Structural and ultrastructural analysis of embryonic development ofProchilodus lineatus(Valenciennes, 1836) (Characiforme; Prochilodontidae) [PDF]

Zygote, 2006
SummaryThis survey was performed to characterize the embryogenesis ofProchilodus lineatus. Seven stages of embryo development were identified – zygote, cleavage, blastula, gastrula, segmentation, larval and hatching – after a period of incubation of 22 h (24 °C) or 14 h (28 °C).
Ninhaus-Silveira, Alexandre, Foresti, Fausto, de Azevedo, Alexandre   +2 more
openaire   +3 more sources

Life‐History and Landscape Context Shaping the Spatial Genetic Structure of the Migratory Amazonian Fish Prochilodus nigricans

Freshwater Biology, Volume 71, Issue 6, June 2026.
ABSTRACT The Neotropical migratory fish Prochilodus nigricans plays a critical ecological and socioeconomic role in the Amazon basin. Nevertheless, little is known about its populations and the genetic diversity pattern of the species. In light of this, the current study investigates the spatial genetic structure and diversity of P.
Ueslei Lopes, Josiane Ribolli, Carolina B. Machado, Rosane Silva‐Santos, Pedro M. Galetti Jr., Patrícia D. Freitas   +5 more
wiley   +1 more source

Composición de especies y diversidad de peces en tres cuerpos de agua en la cuenca alta del río Itaya

Ciencia Amazónica (Iquitos), 2013
En el presente trabajo se describe sobre la diversidad en tres cuerpos de agua de la cuenca alta del río Itaya, concesión de conservación de la universidad científica del Perú, en una evaluación  rápida en los meses de junio y julio del 2012.
Javier del Águila Chávez, Marianela Cobos Ruiz, Herminio Soplín Bosmediano, Junior Ruiz   +3 more
doaj   +3 more sources

First Records of Length–Weight Relationships for Ten Fish Species From the Middle Stretch of the Uruguay River, Southern Brazil

Journal of Applied Ichthyology, Volume 2026, Issue 1, 2026.
This study estimated the length–weight relationships (LWRs) of 10 fish species from the middle stretch of the Middle Uruguay River basin, aiming to provide new morphometric data and contribute to the knowledge of Neotropical ichthyofauna. Fish were collected at seven sites with sampling conducted at each site during every season, totaling 84 sampling ...
Lucas Adriano Pachla, Marthoni Vinicius Massaro, David Augusto Reynalte-Tataje, Sandra Maria Hartz, Jacob Burbank   +4 more
wiley   +1 more source