Efeito da maturação gonadal sobre o conteúdo calórico e condição geral de peixes da planície de inundação do alto rio Paraná - DOI: 10.4025/actascibiolsci.v26i2.1635 [PDF]
Acta Scientiarum: Biological Sciences, 2008 Com o intuito de investigar a alocação de energia e a correlação entre esta e o fator de condição (K) de peixes da planície de inundação do alto rio Paraná (22º43’S; 53º32’W), foram selecionadas as espécies Serrasalmus marginatus (piscívora ...
Melina Rizzato Vismara +2 more
doaj +28 more sources
Contributions to the taxonomy of Trachelyopterus (Siluriformes): comparative cytogenetic analysis in three species of Auchenipteridae [PDF]
Neotropical Ichthyology, 2021 Auchenipteridae is divided into subfamilies Centromochlinae and Auchenipterinae. Parauchenipterus is included in the latter and is subject of taxonomic discussions concerning its validation or synonymization with Trachelyopterus.
Dayane Petik dos Santos +6 more
doaj +9 more sources
A new nematode species (Seuratoidea, Cucullanidae) parasitizing Parauchenipterus striatulus (Steindachner, 1876) (Pisces, Auchenipteridae) in Brazil [PDF]
Memorias do Instituto Oswaldo Cruz, 2000 A new species of a cucullanid nematode is described, illustrated and compared with Cucullanus brevispiculus Moravec, Kohn & Fernandes, 1993 and C. rhamphichthydis Moravec, Kohn & Fernandes, 1997, two species previously reported as parasitizing freshwater
Narcisa IB Moreira +2 more
doaj +7 more sources
O efeito da floresta alagada na alimentação de três espécies de peixes onívoros em lagos de várzea da Amazônia Central, Brasil Effects of flooded forest in the diet of three fish species in floodplain lakes of Central Amazon, Brazil [PDF]
Acta Amazonica, 2004 As enchentes anuais dos rios na Amazônia alagam extensas áreas de floresta conhecidas como várzeas ou igapós. Estas áreas têm papel importante na vida dos peixes da região, pois são fontes de alimento e de abrigo.
Luiz Claro-Jr +3 more
doaj +2 more sources
Cephalic Musculature of the Pacman Catfish Lophiosilurus alexandri Steindachner, 1876 (Siluriformes, Pseudopimelodidae). [PDF]
J MorpholThe head of the Pacman catfish (Lophiosilurus alexandri [L. alexandri]) is strongly depressed, broad, and with a large mouth, roughly resembling those of Lophius piscatorius and Chaca bankanensis. Also, they are bottom dwellers and have ambush behavior for fish predation.
da Silva Marques R +2 more
europepmc +2 more sources
Distribuição, abundância e uso de diferentes ambientes pela ictiofauna dominante na área de influência do reservatório de Itaipu [PDF]
Acta Scientiarum: Biological Sciences, 2008 Com o objetivo de caracterizar a estrutura da ictiofauna dominante do reservatório de Itaipu e de sua área de influência, foram coletados 85.160 exemplares durante o período de novembro de 1983 a outubro de 1989 em 11 estações de amostragem distribuídas ...
Evanilde Benedito-Cecilio +1 more
doaj +2 more sources
Reproductive strategies and genetic variability in tropical freshwater fish [PDF]
Genetics and Molecular Biology, 2007 We estimated the genetic variability of nine fish species from the Brazilian upper Paraná River floodplain (Astyanax altiparanae, Hoplias malabaricus, Leporinus lacustris, Loricariichthys platymetopon, Parauchenipterus galeatus, Pimelodus maculatus ...
Maria Dolores Peres Lassala +1 more
doaj +2 more sources
Journal of Limnology, 2013 Ten temporary ponds in northern Pantanal were studied in July 2006 to explore whether a spatial distribution pattern existed in the composition of fish assemblages, and to identify which environmental variables determined their distribution.
Karina K. Tondato +3 more
doaj +2 more sources
Possible Common Origin of B Chromosomes in Neotropical Fish (Siluriformes, Auchenipteridae) Reinforced by Repetitive DNA Mapping [PDF]
Brazilian Archives of Biology and Technology, 2021 The aim of this paper was to present the second case of B chromosomes in Auchenipteridae (Trachelyopterus sp.), and to test the hypothesis that the B chromosomes of this species and Parauchenipterus galeatus might have a common origin, since these two ...
Roberto Laridondo Lui +7 more
doaj +1 more source
Caryologia, 2023 Trachelyopterus Valenciennes 1840 species exhibit striking morphological and cytogenetic similarities, leading to persistent taxonomic challenges. This research focuses on Trachelyopterus galeatus Linnaeus 1766 and Trachelyopterus porosus Eigenmann ...
Denise Felicetti +8 more
doaj +1 more source