Results 51 to 60 of about 4,289 (221)

Evolucion morfologica del aparato digestivo de postlarvas y prejuveniles de Prochilodus lineatus (Val., 1847) (Pisces, Curimatidae) y su relacion con la dieta [PDF]

open access: yes, 1992
Le "sabalo" (#Prochilodus lineatus$) est une espèce les plus importantes de poissons du Parana. Le régime alimentaire est détritivore chez l'adulte. Cet article présente l'analyse du régime alimentaire des post-larves et préjuvéniles de #Prochilodus ...
Rossi, L.M.
core  

Genetic variability of Prochilodus lineatus in artificial and semi-natural reproduction [PDF]

open access: yesItalian Journal of Animal Science, 2017
Prochilodus lineatus is a South American fish of great economic and social importance that is impacted by high fishing pressure. Restocking programmes have tried to be effective in recovering natural populations; however, genetic and reproductive methodologies are necessary to make feasible the survival of released fingerlings.
Felipe Pinheiro de Souza   +7 more
openaire   +2 more sources

Distribution modelling for Neotropical freshwater stingrays Potamotrygon brachyura and Potamotrygon motoro (Myliobatiformes, Potamotrygonidae) in the Uruguay River basin

open access: yesJournal of Fish Biology, Volume 108, Issue 1, Page 43-56, January 2026.
Abstract This study aimed to identify geographical distribution patterns of the giant short‐tailed river stingray Potamotrygon brachyura and the motoro stingray Potamotrygon motoro in the Uruguay River basin. Data on presence/absence of stingrays were based on fishers' knowledge accessed by interviews through expeditions in Brazil, Argentina and ...
Danilo Araujo Soares Pereira   +2 more
wiley   +1 more source

Diferentes fontes protéicas na alimentação de alevinos de curimba (Prochilodus lineatus V.)

open access: yesActa Scientiarum: Biological Sciences, 2008
Avaliaram-se diferentes fontes protéicas sobre o desempenho e a viabilidade econômica para alevinos de curimba (Prochilodus lineatus). 480 alevinos com peso inicial médio de 10,47 ± 2,11 g e comprimento total inicial médio de 8,85 ± 0,64 cm foram ...
Eliana Maria Galdioli   +4 more
doaj   +1 more source

Cryopreservation of Embryos and Oocytes of South American Fish Species [PDF]

open access: yes, 2014
Non
Digmayer, M.   +5 more
core   +1 more source

Cryogenic preservation of embryos ofProchilodus lineatus(Valenciennes, 1836) (Characiforme; Prochilodontidae) [PDF]

open access: yesZygote, 2009
SummaryWhile the freezing techniques of mammal embryos have been providing promising results, the cryopreservation of teleostean eggs and embryos have remained unsuccessful up to now. Therefore, this work aimed to develop a procedure of cryogenic preservation of embryos ofProchilodus lineatusand to observe, at both structural and ultrastructural levels,
Ninhaus-Silveira, Alexandre   +4 more
openaire   +3 more sources

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

open access: yesJournal 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   +4 more
wiley   +1 more source

Contribution à la systématique des Prochilodus boliviens (Pisces, Characiformes, Prochilodidae) [PDF]

open access: yes, 1991
Quatre-vingt-huit spécimens du genre néotropical de poissons characiformes #Prochilodus$ Agassiz, récoltés en Bolivie, ont été étudiés. L'évaluation de caractères taxonomiques classiques ainsi que la structure des dents labiales et une analyse ...
Géry, J.   +2 more
core  

Chemical modulation on heterogeneous growth in Prochilodus lineatus (Valenciennes, 1847) (Pisces; Characiformes) [PDF]

open access: yesBrazilian Journal of Biology, 2007
In the present study, the effect of chemical factors released by conspecifics on growth variability (heterogeneous growth - HetG) in a gregarious fish species (Prochilodus lineatus) was tested. HetG was assessed by the weight variation coefficient in two consecutive 21-day periods.
Barbosa, J. M., Volpato, Gilson Luiz
openaire   +6 more sources

Anthropogenic Factors Drive the Depletion of Fish Functional Β Diversity Within and Outside Two National Reserves in the Peruvian Amazon

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 12, December 2025.
ABSTRACT Understanding the impact of human activities on fish communities is critical for the effective conservation of Amazonian ecosystems. In this study, we sampled environmental DNA (eDNA) from 17 sites (lakes and rivers) in two Peruvian national reserves, Pacaya‐Samiria and Allpahuayo‐Mishana, using a metabarcoding approach with four genetic ...
B. Prat   +6 more
wiley   +1 more source

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