Results 41 to 50 of about 3,623 (195)

Hybridization, Maternal Inheritance, and Evolutionary Time of Divergence of Endangered Species of <i>Hypancistrus</i> (Siluriformes: Loricariidae) in the Xingu River. [PDF]

open access: yesEcol Evol
We uncover recent hybridization dynamics among three endemic Hypancistrus species from the Xingu River, including the critically endangered H. zebra. Mitogenomic analyses reveal unidirectional maternal inheritance and recent evolutionary radiation (< 0.5 Ma), explaining their retained reproductive compatibility.
Kerniske FF   +4 more
europepmc   +2 more sources

Spatial and temporal population genetic analysis of Semaprochilodus insignis (Prochilodontidae), an overexploited fish from the Amazon basin [PDF]

open access: yesPeerJ, 2023
Background Semaprochilodus insignis is a migratory fish of commercial and subsistence importance to communities in the Amazon. Despite the high intensity of exploitation, recent studies have not been carried out to assess the genetic status of its stocks.
Ingrid Nunes   +4 more
doaj   +2 more sources

Scale morphology of Prochilodus lineatus with emphasis on the scale epithelium [PDF]

open access: yesBrazilian Journal of Biology, 2013
The fish body is entirely covered by a thin, smooth and glandular epidermis, closely attached to the scales inserted on the dermis. The descriptive work on this tissue dates to twenty or thirty years ago, bears very little photographic record and does not focus on the scale epithelium, despite the fact that it is in direct contact with the environment.
Alves, Rebeca Mamede da Silva   +5 more
openaire   +6 more sources

Use of Prochilodus lineatus meat for burger making [PDF]

open access: yesBrazilian Journal of Food Technology, 2020
Abstract The study aimed to elaborate burgers with fillet and pulp (fish carcass meat) of grumatã (Prochilodus lineatus), and to evaluate its centesimal composition, microbiological and sensorial properties. Three formulations were prepared. One was prepared with the fillet (0% pulp), and the remaining two contained 15% or 30% pulp (instead of fillet),
Alexandra Pretto   +7 more
openaire   +4 more sources

Atresia Folicular en Ovarios de Prochilodus lineatus [PDF]

open access: yesInternational Journal of Morphology, 2012
Durante el periodo reproductivo, en el ovario de los teleosteos se forman ciclicamente foliculos primarios, los que maduran y son liberados en el momento de la ovulacion. Sin embargo, algunos de ellos desarrollan un proceso de atresia con degeneracion y reabsorcion, el que para ser considerado un evento fisiologico deberia predominar al final del ciclo
Flores Quintana, C   +4 more
openaire   +3 more sources

Reproduction, feeding and migration patterns of Prochilodus nigricans (Characiformes: Prochilodontidae) in northeastern Ecuador

open access: yesNeotropical Ichthyology, 2017
The black prochilodus, Prochilodus nigricans, is an important food fish distributed throughout aquatic habitats of the Ecuadorian Amazon. We sampled gonad weight, body condition, and feeding of this species to address the question of whether changes in ...
Eddy A. Silva, Donald J. Stewart
doaj   +1 more source

Short-term cold storage of sperm from six neotropical characiformes fishes

open access: yesBrazilian Archives of Biology and Technology, 2004
Sperm of the following Neotropical Characiformes fish species were tested for cold storage: Brycon lundii, Piaractus mesopotamicus, Leporinus elongatus, Leporinus friderici, Prochilodus lineatus and Prochilodus marggravii.
Simone Marques, Hugo Pereira Godinho
doaj   +1 more source

Transferability of heterologous primers in Brycon falcatus [PDF]

open access: yesActa Amazonica, 2020
The genusBryconcomprises fish species of significant socioeconomic and biological importance in Brazil. Despite that, the genetic knowledge about these species is scarce, especially regardingBrycon falcatus.
Diego dos Santos PENHA   +9 more
doaj   +1 more source

B chromosomes in the species Prochilodus argenteus (Characiformes, Prochilodontidae): morphologicalidentity and dispersion

open access: yesComparative Cytogenetics, 2015
B chromosomes have attracted the attention of Neotropical fish cytogeneticists in recent years, both for their remarkable occurrence in this group and also because of the interest in studies of the genetic structure and role played in the genome of these
Manolo Penitente   +2 more
doaj   +1 more source

Morphological development of larvae and juveniles of Prochilodus argenteus [PDF]

open access: yesCiência Rural, 2017
ABSTRACT: Prochilodus argenteus is an endemic fish species from the São Francisco River basin that is of high economic and environmental importance. The present study aimed to contribute with information to the taxonomic identification of larvae and juveniles of this species. Larvae , obtained from induced spawning of wild animals, were reared in ponds.
Guimarães, Irũ Menezes   +4 more
openaire   +4 more sources

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