Results 51 to 60 of about 2,370 (178)

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

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

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

Histophatology and ultrastructure of Henneguya caudalongula sp. n. infecting Prochilodus lineatus (Pisces: Prochilodontidae) cultivated in the state of São Paulo, Brazil

Memorias do Instituto Oswaldo Cruz, 2005
The histological and ultrastructural characteristics of a new species of Henneguya and the host reactions to infection by this species are reported. Henneguya caudalongula sp. n.
Edson A Adriano, Sarah Arana, Nelson S Cordeiro   +2 more
doaj   +1 more source

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

Phylogeny, ultrastructure, histopathology and prevalence of Myxobolus oliveirai sp. nov., a parasite of Brycon hilarii (Characidae) in the Pantanal wetland, Brazil [PDF]

, 2010
This paper presents the morphological, histological and ultrastructural characteristics of Myxobolus oliveirai sp. nov., a parasite of the gill filaments in Brycon hilarii from the Brazilian Pantanal. Out of 216 B. hilariispecimens examined (126 wild and
ADRIANO, Edson A, ALVES, Anderson L, ARANA, Sarah, CARRIERO, Mateus M, CECCARELLI, Paulo S, EIRAS, Jorge C, MAIA, Antônio AM, MILANIN, Tiago, SILVA, Márcia RM   +8 more
core   +3 more sources

Relaciones evolutivas de los peces Prochilodus reticulatus y Prochilodus magdalenae (Characiformes: Prochilodontidae)

Revista de Ciencias, 2018
Se realizó un estudio filogenético entre las especies Prochilodus reticulatus (Valenciennes, 1850) y P. magdalenae (Steindachner, 1879) de gran valor socioeconómico en el país. Inicialmente, las especies fueron colectadas para la extracción del ADN y su posterior caracterización mediante RAPD-PCR para establecer sus relaciones filogenéticas empleando ...
Vega Contreras, Nelson Alfonso, Salazar Mercado, Seir Antonio, Galvis Serrano, Nestor Fabián   +2 more
openaire   +4 more sources

Process catalyzers in Amazonian rivers: large woody debris modifies ecosystem processes across freshwater habitats

Ecosphere, Volume 9, Issue 1, January 2018., 2018
Abstract Understanding the role of interactions in influencing community structure and ecosystem function is a goal in ecology, and identifying biotic entities that are strong interactors is imperative for setting targeted conservation strategies.
Sebastian A. Heilpern, J. Timothy Wootton   +1 more
wiley   +1 more source

Ossification of the cranium of Inpaichthys kerri (Characiformes: Acestrorhamphidae) with discussion of paedomorphic traits in the genus

Journal of Anatomy, EarlyView.
In this study, we present a detailed description of the cranial development of Inpaichthys kerri (Characiformes: Acestrorhamphidae), highlighting important topics such as pedomorphic characters and their relationship with ontogeny and phylogeny, as well as ossification sequences unique to the species. Abstract The study of development provides valuable
Yasmim De Santana Santos, Manoela M. F. Marinho   +1 more
wiley   +1 more source

Peixes detritivoros da planicie inundavel do Rio Miranda, Pantanal, Mato Grosso do Sul, Brasil. [PDF]

, 2015
Foi analisada a alimentacao de 17 especies de peixes detritivoros, pertencentes as familias Prochilodontidae, Curimatidae e Loricariidae, de quatro ambientes da planicie de inundacao (dois meandros abandonados, uma "vazante" e um pequeno lago) de rio ...
PEREIRA, R. A. C., RESENDE, E. K. de
core   +1 more source