Results 91 to 100 of about 1,336 (204)
Functional trophic composition of the ichthyofauna of forest streams in eastern Brazilian Amazon. [PDF]
, 2015 Este estudo teve como objetivo descrever a organização funcional da fauna de peixes de riachos do nordeste do estado do Pará, Brasil, com base em observações comportamentais das táticas alimentares das espécies. Sete igarapés foram amostrados entre junho
BREJÃO, G. L., GERHARD, P., ZUANON, J.
core
Acta Scientiarum: Biological Sciences, 2007 Com o objetivo de quantificar a importância de algumas característicasfisiográficas dos riachos sobre a ocorrência de quatro espécies de Characidae em riachos de cabeceira na bacia do rio Ivinhema, realizaram-se amostragens bimestrais em dez riachos com ...
Yzel Rondon Súarez +4 more
doaj
Ictiofauna da bacia do Rio Jacaré-Guaçu, bacia do Alto Rio Paraná [PDF]
, 2011 This study aimed to evaluate the fish fauna composition and distribution in different environments, up- and downstream the Gavião Peixoto Dam, in the Jacaré-Guaçu River basin.
ARCIFA, Marlene Sofia +1 more
core +2 more sources
Caudal Spotting in the Beacon Fish (Hemigrammus ocellifer Characidae) [PDF]
Journal of Heredity, 2002 The beacon fish (Hemigrammus ocellifer) exhibits two phenotypes associated with spotting at the base of the caudal fin, with fish either possessing (H. o. ocellifer) or lacking (H. o. falsus) a prominent red spot in this region. Segregation patterns observed from the progenies of 15 different crosses support a hypothesis that caudal spotting in this ...
openaire +2 more sources
Neotropical Ichthyology, 2017 We explored patterns of phenotypic variation in Hemigrammus coeruleus from the Unini River basin, a blackwater river in the Brazilian Amazon. Geometric morphometrics was used to evaluate variation in body shape among populations from four tributaries ...
Henrique Lazzarotto +3 more
doaj +1 more source
Ictiofauna Da Cachoeira De São Roberto E Peixes Do Baixo Rio Preto, Bacia Do Alto Rio Paraná, Brasil [PDF]
, 2017 Rheophilic environments typically houses fish species with specific ecological requirements. Thus, the suppression of these environments can lead to damaging impacts to local and regional fauna.
Carvalho F.R. +2 more
core +1 more source
Hemigrammus lunatus Durbin in Eigenmann 1918
, 2014 Hemigrammus lunatus Durbin, 1918 Figs. 4-7 Hemigrammus lunatus Durbin in Eigenmann, 1918: 164 [type locality: Amazon basin , restricted herein to Brazil, Amazonas, Codaj s, lago Badaj s (ca. 03 21 S 62 41 W) ; see below; Obidos , Caceres , Jauru ].
Ota, Rafaela P. +2 more
openaire +1 more source
Boletim do Instituto de Pesca, 2017 Esse estudo teve como objetivo descrever a biologia reprodutiva e os hábitos alimentares de Hemigrammus bleheri do médio Rio Negro, estado do Amazonas-Brasil, ao longo de um ciclo hidrológico.
Hélio Daniel BELTRÃO dos Anjos +2 more
doaj +1 more source
Lista de los peces de la provincia de Corrientes [PDF]
, 2017 Fil: Nadalin, Diego Oscar. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología Vertebrados; ArgentinaFil: Protogino, Lucila Cristina. Universidad Nacional de La Plata.
López, Hugo Luis +2 more
core
Hemigrammus rubrostriatus spec. nov. - ein neuer Salmler aus Kolumbien und Revalidierung von Hemigrammus falsus MEINKEN, 1958 (Teleostei: Ostariophysi: Characidae) [PDF]
Vertebrate Zoology, 2015 Hemigrammus rubrostriatus spec. nov. from Colombia is described and H. falsus Meinken, 1958 is revalidated. Both are members of the H.-ocellifer-group according to Géry (1978). H. rubrostriatus spec. nov. is characterized by its coloration: (1) a vertically elongated humeral spot, (2) a vermilion longitudinal band, which runs from operculum along the ...
openaire +1 more source