Results 41 to 50 of about 4,249 (207)

Statistical distribution models for migratory fish in Jacuí basin, South Brazil

open access: yesNeotropical Ichthyology
The aim of the present study was to identify the distribution patterns of migratory fishes in the Jacuí river basin (Rio Grande do Sul, South Brazil), proposing a statistical model of presumed distribution based on geomorphologic environmental data ...
Thaís P. Alves, Nelson F. Fontoura
doaj   +1 more source

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

open access: yesActa 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   +4 more
doaj   +1 more source

Menthol and eugenol as natural anesthetics for early juveniles of curimba

open access: yesRevista Brasileira de Zootecnia, 2018
The objective of this study was to evaluate menthol and eugenol as anesthetics for early juveniles of curimba, Prochilodus lineatus. Juveniles of 4.0±0.5 g and a total length of 8.8±0.1 cm were exposed to the anesthetics menthol (20, 30, 40, 50, 60, 70 ...
Elias Fernandes de Medeiros Junior   +6 more
doaj   +1 more source

A fractal pattern of hierarchical genetic population structure in mixed stocks across fish segregated by dams revealed by genomic resources for curimba Prochilodus lineatus

open access: yesJournal of Fish Biology, EarlyView.
Abstract Genomic resources, new microsatellite markers and a novel observation of a fractal pattern in the genetic population structure are presented for curimba, Prochilodus lineatus, a freshwater migratory model species of South America. Our main goals were to investigate the presence of mixed fish stocks and the effects of damming‐induced ...
Gabriel M. Yazbeck   +5 more
wiley   +1 more source

Histopathologic changes in the kidney tissue of Prochilodus lineatus Valenciennes, 1836 (Characiformes, Prochilodontidae) induced by sublethal concentration of Trichlorfon exposure

open access: yesBrazilian Archives of Biology and Technology, 2002
Studies were carried out to analyse the kidney histopathological alterations of "curimbatá", Prochilodus lineatus, were analyzed. An acute bioassay was made by the water contamination with 0.2muml/l of Dipterex 500 (Trichlorfon).
Marcelo Leite da Veiga   +3 more
doaj   +1 more source

Temporal genetic structure of a stock of Prochilodus lineatus (Characiformes: Prochilodontidae) in the Mogi-Guaçu River ecosystem, São Paulo, Brazil

open access: yesNeotropical Ichthyology, 2022
Prochilodus lineatus is a species of migratory fish widely distributed in the Paraná River basin, found mainly in the Grande, Pardo and Mogi-Guaçu rivers located in a well-developed region of the state of São Paulo.
Ivana F. da Rosa   +10 more
doaj   +1 more source

Scale of development of Prochilodus lineatus (Val.) (Pisces, Curimatidade) juveniles from the Parana river [PDF]

open access: yes, 1993
La longueur totale, la formation et le rayon des écailles ont été examinés. Les écailles commencent à se former pour une longeur totale de 13 mm, et sont formées pour une longueur du poisson de 17 mm.
Campana, M., Cordiviola de Yuan, E.
core  

The effects of endosulfan on P450 1A gene expression, antioxidant enzymes activity and histopathological alterations in liver of Persian sturgeon (Acipenser persicus Borodin, 1987) [PDF]

open access: yes, 2016
The effects of 14 days exposure to sublethal concentrations of endosulfan (10 and 40 μg L−1) were investigated in mRNA- P450 1A expression, antioxidant enzymes (SOD and CAT) activity and histopathological alterations of Persian sturgeon (Acipenser ...
Khalili, M.   +3 more
core   +1 more source

Deciphering the complex life cycle and partial migration of an ecological engineer and critical Neotropical fishery species, Prochilodus costatus

open access: yesJournal of Fish Biology, EarlyView.
Abstract Understanding complex migration patterns, including drivers of partial migration and habitat use, is challenging but essential for conservation, as it determines a species' adaptative capacity in the face of environmental change and anthropogenic threats.
Alexandre Peressin   +6 more
wiley   +1 more source

Transmission rate variation among three B chromosome variants in the fish Prochilodus lineatus (Characiformes, Prochilodontidae)

open access: yesAnais da Academia Brasileira de Ciências, 2013
Cytogenetic studies were developed in Prochilodus lineatus (Valenciennes 1836), describing an interesting system of small supernumerary chromosomes. The purpose of this work is to study the frequency and morphology of B chromosomes in individuals from ...
MANOLO PENITENTE   +5 more
doaj   +1 more source

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