|
|
|
Registros recuperados: 16 | |
|
| |
|
|
Silva,Zoraia; Nascimento,Patrícia Elaine Cunha do; Vitule,Jean Ricardo Simões; Frehse,Fabrício de Andrade; Ferraz,Mayara Silva Oliveira; Mourgués-Schurter,Lea Rosa. |
Abstract: Fish can vary their diet and feeding dynamics according to biotic and abiotic factors. There is insufficient knowledge regarding these factors in reservoirs, which limits the management of these areas. The aim of this study was to determine the diet of two related and most collected fish species, verify the influence of biotic and abiotic factors on their diet, and also verify the existence of resource sharing by them in an upstream Brazilian reservoir. Fish abundance in the reservoir was calculated and data were provided by 176 specimens of Iheringichthys labrosus (Lütken, 1874) and 255 specimens of Pimelodus maculatus Lacépède, 1803 collected in Camargos reservoir, MG, Brazil. Stomach contents were analysed through the frequency of occurrence... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feeding ecology; Iheringichthys labrosus; Pimelodus maculatus; Rio Grande Basin; Upstream reservoir. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000300205 |
| |
|
| |
|
|
Alves,Carlos Bernardo Mascarenhas. |
Rio Paraopeba, a tributary of rio São Francisco, has a six-meter high dam, built in 1978 to divert water to the Igarapé Thermal Power Plant. In 1994, a fish ladder was built at this dam. The results of a marking and recapture program carried out along rio Paraopeba between 1997 and 2001 are described, using information from fish community studies conducted at ten sampling stations between 1994 and 1997. These investigations showed the presence of at least 91 species in the river. During four rainy seasons between 1997 and 2000, fish were caught downstream of the dam, marked with external plastic tags, and immediately released at the same site. The objective was to evaluate fish passage through the ladder, based on recapture information from artisanal and... |
Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Rio São Francisco basin; Migration; Prochilodus costatus; Leporinus obtusidens; Pimelodus maculatus. |
Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000200019 |
| |
|
| |
|
|
Ramella,Micheline Sandra; Kroth,Mariela Aparecida; Meurer,Samira; Nuñer,Alex Pires de Oliveira; Zaniboni Filho,Evoy; Arisi,Ana Carolina Maisonnave. |
The genetic variability of four fish species (Pimelodus maculatus, Prochilodus lineatus, Salminus brasiliensis and Steindachneridion scripta) collected in the upper Uruguay River basin was analyzed using the RAPD technique. A total of 118 amplified fragments was obtained, 11 for P. maculatus, 29 for P. lineatus, 45 for S. brasiliensis and 33 for S. scripta. Amplified fragments with monomorphic profile were not found in the studied species, except for S. brasiliensis, which presented seven monomorphic bands for Saltinho population. All species showed high levels of genetic variability among individuals. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: RAPD; Pimelodus maculatus; Prochilodus lineatus; Salminus brasiliensis; Steindachneridion scripta. |
Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000500008 |
| |
|
|
Duarte,Silvana; Silva,Flávia Cristina de Paula e; Zauli,Danielle Alves Gomes; Nicoli,Jacques Robert; Araújo,Francisco Gerson. |
The Gram-negative intestinal microbiota of Hypostomus auroguttatus and Pimelodus maculatus, a detritivorous and an omnivorous fish species, respectively, were compared between fishes from the reservoir and the stretch of the river below the dam of the Funil hydroelectric plant, Rio de Janeiro, Brazil. Four selective culture media were used under aerobic and two under anaerobic conditions. The omnivorous species had microbiota with higher population levels compared to the detritivorous species. The number of morphotypes and population levels of total bacteria, vibrio and Bacteroides tended to be higher in summer and autumn in the reservoir, and not different in the river. The number of morphotypes of enterobacteria and total bacteria were higher in the... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alimentary regimen; Environment; Gut microbiology; Hypostomus auroguttatus; Pimelodus maculatus. |
Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000400019 |
| |
|
| |
|
|
Luz,Ronald Kennedy; Zaniboni Filho,Evoy. |
Este trabalho foi realizado na Estação de Piscicultura de São Carlos (EPISCar), São Carlos, SC. O efeito da densidade de estocagem de Pimelodus maculatus na larvicultura foi avaliado em pós-larvas alimentadas diariamente com zooplâncton selvagem na proporção de 300 organismos/pós-larva/dia e submetidas aos seguintes tratamentos: T1 - 5 pós-larvas/litro; T2 - 15 pós-larvas/litro; T3 - 30 pós-larvas/litro. No terceiro e quinto dias de experimento, foi avaliada a taxa de sobrevivência. Decorridos três dias de experimento, não foi observada influência da densidade na sobrevivência, embora, no quinto dia de experimento, houvesse maior sobrevivência na menor densidade testada, com valores médios de sobrevivência final de T1 (35,6%), T2 (28,9%) e T3 (20,6%). Os... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Densidade de estocagem; Larvicultura; Mandi-amarelo; Pimelodus maculatus; Pós-larva. |
Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982002000300004 |
| |
|
|
Brasil-Sato,Marília de Carvalho; Pavanelli,Gilberto Cezar. |
Neoechinorhynchus pimelodi sp.n. is described as the first record of Acanthocephala in Pimelodus maculatus Lacépède. 1803, collected in the São Francisco river, Três Marias, Minas Gerais. The new species is distinguished from other of the genus by the three circles of hooks of different sizes, and by the eggs measurements. The hooks measuring 100-1 12 (105), 32-40 (36) and 20-27 (23) in length in the males and 102-142 (129), 34-55 (47) and 27-35 (29) in length in the females for the anterior, middle and posterior circles. The eggs measuring 15-22 (18) in length and 12-15 (14) in width, with concentric layers of texture smooth, enveloping the acanthor. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acanthocephala; Neoechinorhynchidae; Neoechinorhynchus pimelodi sp.n.; Pimelodus maculatus; São Francisco river; Brazil. |
Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000400019 |
| |
|
| |
|
| |
|
|
Bachmann, Fernanda; FURB; Greinert, Juliane Araújo; FURB; Bertelli, Pedro Wilson; FURB; Silva Filho, Hercílio Higino da; FURB; Lara, Natália Oliveira Totti de; FURB; Ghiraldelli, Luciana; UFSC; Martins, Maurício Laterça; UFSC. |
Pouco se conhece sobre a parasitofauna de peixes de água doce no Estado de Santa Catarina. Espécimes de mandi, Pimelodus maculatus foram coletados no rio Itajaí-Açu, Blumenau, Estado de Santa Catarina, entre março e dezembro de 2005, para anáise parasitolóica. De 82 peixes analisados, todos apresentaram pelo menos uma espécie de parasito. Durante as amostragens foram medidos o pH, o oxigênio dissolvido, a condutividade elérica e a temperatura da água, bem como a temperatura ambiente e as condições do tempo nos dois dias que precederam a coleta. Os maiores valores de prevalêcia e intensidade média de infecção foram observados por Monogenoidea (96,3%; 100,23), seguido por Henneguya sp. (63,4%), Procamallanus (Spirocamallanus) pimelodus (51,2%; 3,02),... |
|
Palavras-chave: 2.13.00.00-3 Parasitologia parasitas; Peixe; Pimelodidae; Pimelodus maculatus; Itajaí-Açu; Santa Catarina. |
Ano: 2007 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/159 |
| |
|
|
Sato,Yoshimi; Fenerich-Verani,Nelsy; Verani,José Roberto; Godinho,Hugo Pereira; Sampaio,Edson Vieira. |
Pimelodus maculatus Lacepede, 1803 is an important fish of the Säo Francisco river basin, where it is economically significant in both professional and sports fisheries. The fish, maintained in captivity, was subjected to hypophysation with crude caip pituitary extract. Approximately 70% of the females treated spawned viable eggs. The eggs were opaque, demersal, yellow and free. Egg stripping was performed at 213 hour-degrees (duration = 8.3 h) after the second dose injection, at water temperature of 25-26ºC. Hatching occurred at 394 hour-degrees (duration = 16.3 h) after egg fertilization, at water temperature of 24-25ºC. Egg fertilization rate was 64.8%. The relationship between absolute fecundity (AF), initial fertility (IF) and final fertility (FF) and... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Siluriformes; Pimelodus maculatus; Yellow-mandi catfish; Reproduction. |
Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000400006 |
| |
|
| |
|
| |
Registros recuperados: 16 | |
|
|
|