Results 11 to 20 of about 2,068 (196)

Growth of Pimelodus maculatus (Actinopterygii, Pimelodidae) in cages at different stocking densities [PDF]

open access: yesBiotemas, 2009
This study aimed to evaluate the influence of densities 8, 32, 56 and 80 fish/m3 on the productive performance of Pimelodus maculatus in 1m3 cages installed in 0.19ha earthen ponds without water renewal, located on private property in Santo Amaro da ...
Saula Corrêa Afonso de Almeida   +1 more
doaj   +1 more source

DESENVOLVIMENTO EMBRIONÁRIO E ESTÁGIOS LARVAIS DO MANDI-AMARELO Pimelodus maculatus

open access: yesBoletim do Instituto de Pesca, 2018
O conhecimento dos estágios iniciais do desenvolvimento embrionário de peixes é de extrema importí­¢ncia para o estudo de espécies nativas com potencial para a piscicultura.
Ronald Kennedy LUZ   +3 more
doaj   +1 more source

DNA metabarcoding of mock communities highlights potential biases when assessing Neotropical fish diversity

open access: yesEnvironmental DNA, Volume 5, Issue 6, Page 1351-1361, November 2023., 2023
The performance of a taxonomy‐free approach using ASV/MOTUs was not as precise as assigning DNA reads to species using a curated 12S library that includes approximately 100 fish species since more than one ASV/MOTU was observed for the same specimen.
Heron Oliveira Hilário   +3 more
wiley   +1 more source

Fisheries in a border area of the Moxos Lowlands (Bolivia) after invasion of Arapaima gigas

open access: yesAquaculture, Fish and Fisheries, Volume 3, Issue 2, Page 196-210, April 2023., 2023
We characterized fisheries in the area of the port city of Riberalta (upper Madeira River basin) and evaluated the contribution of an invasive species (Arapaima gigas) to the landings. A. gigas represented 57.6% of the overall economic value of fish in the region.
Gabriela Rico Lopez   +4 more
wiley   +1 more source

Swimming performance of the freshwater neotropical fish: Pimelodus maculatus Lacepède, 1803 [PDF]

open access: yesBrazilian Journal of Biology, 2008
The present study used fixed and increasing velocity tests in an experimental apparatus based on Brett's respirometer to examine prolonged and sustained speeds of the "mandi-amarelo", Pimelodus maculatus. When comparing the curves of critical speed versus total length between the mandi and the sockeye salmon Oncorhynchus nerka, it is observed that for ...
Santos, HA.   +3 more
openaire   +5 more sources

Gram-negative intestinal indigenous microbiota from two Siluriform fishes in a tropical reservoir. [PDF]

open access: yesBraz J Microbiol, 2014
Duarte S   +4 more
europepmc   +2 more sources

Mini DNA barcodes reveal the details of the foraging ecology of the largehead hairtail, Trichiurus lepturus (Scombriformes: Trichiuridae), from São Paulo, Brazil

open access: yesNeotropical Ichthyology, 2022
The largehead hairtail, Trichiurus lepturus, is an opportunistic, voracious, and piscivorous predator. Studies of fish feeding behavior based on the analysis of stomach contents are limited by the potential for the visual identification of the ingesta ...
Beatriz R. Boza   +5 more
doaj   +1 more source

Localization of ribosomal genes in three Pimelodus species (Siluriformes, Pimelodidae) of the São Francisco River: 5S genes as species markers and conservation of the 18S rDNA sites [PDF]

open access: yes, 2008
Pimelodidae is one of the most representative of Neotropical catfish families. However, these fish are still poorly studied in terms of cytogenetics, especially regarding the application of more accurate techniques such as the chromosomal localization of
GARCIA, Caroline, MOREIRA FILHO, Orlando
core   +2 more sources

Reprodução de peixes (Osteichthyes) em afluentes do reservatório de Volta Grande, Rio Grande, Sudeste do Brasil Fishes reproduction in the Volta Grande dam tributaries, Grande River, Southeastern Brazil

open access: yesIheringia: Série Zoologia, 2001
The most abundant species caught in the tributaries of the Volta Grande dam, Buriti, Divisa and Água Comprida streams were Plagioscion squamosissimus (Heckel, 1840), Pimelodus maculatus Lacépède 1803, Myleus tiete (Eigenmann & Norris, 1900), Astyanax ...
Francisco Manoel de Souza Braga
doaj   +1 more source

Pimelodus maculatus Lacepede 1803

open access: yes, 2018
Pimelodus maculatus. The diploid number of this species was also 56 chromosomes (24 m + 20 sm + 6 st + 6 a) (Fig. 1c). The AgNORs were located in the terminal region of the long arm of a pair of subtelocentric chromosomes 23 (Fig. 1c, box). C-banding revealed the existence of pale heterochromatin in the region of the telomeres of some chromosomes, with
Girardi, Simone C.   +2 more
openaire   +2 more sources

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