Results 21 to 30 of about 2,099 (215)

DESCRIÇÃO DE Cucullanus patoi sp. n. (NEMATODA, CUCULLANIDAE) DE PINTADO Pimelodus maculatus LACÉPEDE, 1803 (PISCES), DO LAGO DO GUAÍBA, RS, BRASIL

open access: yesCiência Rural, 1992
Uma nova espécie de nematódeo, Cucullanus patoi sp. n. é descrita no intestino do pintado (Pimelodus maculatus) do Lago do Guaíba, RS.
Elinor Fortes   +2 more
doaj   +1 more source

From fresh water to the slope: fish community ecology in the Río de la Plata and the sea beyond [PDF]

open access: yes, 2010
The spatial pattern of fish assemblages and its relationship with factors along an environment gradient, from fresh to marine water environment along the Río de la Plata estuary (36ºS, 56ºW) the shelf and part of the slope, was examined using data from ...
García, Mirta L.   +2 more
core   +5 more sources

Efeito de fatores abióticos na larvicultura de pintado amarelo Pimelodus maculatus (Lacépède, 1803): salinidade e cor de tanque - DOI: 10.4025/actascianimsci.v26i2.1859

open access: yesActa Scientiarum: Animal Sciences, 2008
Fatores abióticos podem determinar o sucesso na larvicultura de algumas espécies de peixes. A cor do tanque e salinidade da água de criação podem promover alterações no comportamento e na fisiologia das pós-larvas de peixes.
Marcos Weingartner, Evoy Zaniboni Filho
doaj   +1 more source

Qualitative and quantitative study of parasites of Pimelodus maculatus and Rhamdia quelen from the Jacaré-Pepira River, state of São Paulo, Brazil

open access: yesAnais da Academia Brasileira de Ciências, 2021
In the freshwater ecosystems of Brazil can be found high biodiversity of fish, about 5160 species. However, the Jacaré-Pepira River, located in the state of São Paulo, Brazil, presents a diversity of fish still to be explored in ichthyological studies ...
DÉBORA C. NEGRELLI   +3 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

Predicted impacts of proposed hydroelectric facilities on fish migration routes upstream from the Pantanal wetland (Brazil)

open access: yesRiver Research and Applications, Volume 36, Issue 3, Page 452-464, March 2020., 2020
Abstract There are 104 hydroelectric facilities proposed to be installed in the watersheds that feed the Pantanal, a vast floodplain wetland located mostly in Brazil. The Pantanal is host to 23 long‐distance migratory fish species that ascend upland tributaries to spawn.
Marcel Medinas de Campos   +5 more
wiley   +1 more source

Analysis of genetic variability in three species of Pimelodidae (Ostariophysi - Siluriformes)

open access: yesGenetics and Molecular Biology, 1998
Genetic variability of three Pimelodidae species, Pimelodus maculatus, Iheringichthys labrosus, and Pinirampus pirinampu, collected at one site in the Tibagi River, was comparatively analyzed using protein data for six systems which code 15 loci in liver,
Fernanda S. de Almeida, Leda M.K. Sodré
doaj   +1 more source

Benefits of Adding Virginiamycin to Arapaima gigas (Schinz, 1822) Diet Cultivated in the Brazilian Amazon

open access: yesScientifica, Volume 2020, Issue 1, 2020., 2020
The aim of this study was to evaluate the physiological, zootechnical, and environmental benefits of the use of growth‐promoting virginiamycin in the pirarucu diet. The research was conducted at the Carlos Eduardo Matiazze Fish Center, Federal University of Rondônia.
Jucilene Cavali   +9 more
wiley   +1 more source

A new helminth parasite of fish: Spirocamallanus freitasi sp. n. (Nematoda - Camallanidae)

open access: yesMemorias do Instituto Oswaldo Cruz, 1991
A new species of nematode is described, Spirocamallanus freitasi sp. n. The worms were collected from fishes (Bergiaria westermanni, Pimelodus maculatus and Pimelodus sp.) living in Três Marias Dam (São Francisco River) in the State of Minas Gerais ...
Narcisa Imaculada Brant Moreira   +2 more
doaj   +1 more source

Tailwater fish of a Brazilian dam: abundance estimation and protection from turbine-induced mortality [PDF]

open access: yesActa Limnologica Brasiliensia
: Aim To determine for Pimelodus maculatus, the fish most affected by the operation and maintenance (O&M) of the Amador Aguiar II Hydropower Dam, Araguari River, Brazil, (i) the most suitable fishing gear for its sampling, (ii) the seasonal variation in
Ana Carolina Lacerda Rêgo   +2 more
doaj   +1 more source

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