Results 1 to 10 of about 292 (87)

First record of Steindachnerina insculpta (Fernández-Yépez, 1948) (Characiformes, Curimatidae) in Argentina [PDF]

open access: yesCheck List, 2018
Recent expeditions to northwestern Argentina revealed the presence of an unknown species of Curimatidae for the Bermejo river basin. The morphometric and meristic analyses of these specimens allow us to identify them as Steindachnerina&nbsp ...
Gastón Aguilera   +3 more
doaj   +9 more sources

Trophic position of bottom-feeding fish in the Upper Paraná River floodplain [PDF]

open access: yesBrazilian Journal of Biology, 2009
The δ15N composition of bottom-feeding fish (iliophagous = Apareiodon affinis, Cyphocharax nagelii, Prochilodus lineatus, Steindachnerina brevipinna and S.
CA. Lopes, E. Benedito, LA. Martinelli
doaj   +4 more sources

Inferring Diversity and Evolution in Fish by Means of Integrative Molecular Cytogenetics. [PDF]

open access: yesScientificWorldJournal, 2015
Fish constitute a paraphyletic and profusely diversified group that has historically puzzled ichthyologists. Hard efforts are necessary to better understand this group, due to its extensive diversity. New species are often identified and it leads to questions about their phylogenetic aspects. Cytogenetics is becoming an important biodiversity‐detection
Artoni RF   +5 more
europepmc   +2 more sources

Reproductive strategies of two Curimatidae species in a Mogi Guaçu impoundment, upper Paraná River basin, São Paulo, Brazil [PDF]

open access: yesNeotropical Ichthyology, 2012
Considering that reproduction studies are fundamental to understand the life cycle of organisms, this study aimed to investigate the reproductive strategies of saguirus Cyphocharax nagelii and Steindachnerina insculpta in a dam of Mogi Guaçu River, (SP).
Alexandre Peressin   +2 more
doaj   +4 more sources

B microchromosomes in the family Curimatidae (Characiformes): mitotic and meiotic behavior [PDF]

open access: yesComparative Cytogenetics, 2011
In the present work, six curimatid species were analyzed: Cyphocharax voga (Hensel, 1870), C. spilotus (Vari, 1987), C. saladensis (Meinken, 1933), C. modestus (Fernández-Yépez, 1948), Steindachnerina biornata (Braga & Azpelicueta, 1987)
Tatiane Ramos Sampaio   +4 more
doaj   +2 more sources

Ultrastructural changes in female hepatocytes during ovarian maturation of Steindachnerina insculpta (Pisces: Curimatidae) Mudanças ultra-estruturais nos hepatócitos de fêmeas de Steindachnerina insculpta (Pisces: Curimatidae) durante a maturação ovariana [PDF]

open access: yesBrazilian Journal of Biology, 2006
During gonadal maturation the females of Steindachnerina insculpta, a teleost of the Furnas reservoir, Minas Gerais, Brazil, show low hepatosomatic and high gonadossomatic indexes, suggesting possible transference of hepatic substances to the ovaries. In
V. M. A. Ribeiro   +3 more
doaj   +2 more sources

Cytogenetic analyses of two Curimatidae species (Pisces; Characiformes) from the Paranapanema and Tietê Rivers [PDF]

open access: yesBrazilian Journal of Biology
Cytogenetic analyses were performed in two Curimatidae species (Steindachnerina insculpta and Cyphocharax modesta) from the Paranapanema and Tietê Rivers (São Paulo State, Brazil), showing a karyotype composed of 54 meta-submetacentric chromosomes in ...
LVS De Rosa   +5 more
doaj   +2 more sources

Revalidation and redescription of Steindachnerina nigrotaenia and redescription of S. insculpta (Characiformes: Curimatidae)

open access: yesNeotropical Ichthyology, 2019
Steindachnerina nigrotaenia is resurrected from the synonym of S. brevipinna and considered a valid species. The previous designation of the lectotype of S. nigrotaenia is considered invalid and a new lectotype is designated herein.
Heraldo A. Britski   +3 more
doaj   +3 more sources

Estrutura da População das principais espécies de peixes da Represa Municipal de São José do Rio Preto, SP, Rio Preto, afluente do rio Turvo, drenagem do rio Grande [PDF]

open access: yesBoletim do Instituto de Pesca, 2018
O presente trabalho teve como objetivo investigar a diní­¢mica reprodutiva de peixes das famí­­lias Characidae (Serrapinnus notomelas, Hemigrammus marginatus, Hyphessobrycon eques, Piabina argentea, Steindachnerina insculpta) e Poecilidae (Poecilia ...
Vanessa Xavier Linhares de ANDRADE   +3 more
doaj   +2 more sources

Fish-food interaction network around cage fish farming in a neotropical reservoir

open access: yesActa Limnologica Brasiliensia, 2021
: Aim Investigating whether wild fish accept residual ration from cage fish farming to the point of changing their diet and the fish-food interaction network.
Heleno Brandão   +6 more
doaj   +1 more source

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