Results 11 to 20 of about 709 (151)
Data supporting phylogenetic reconstructions of the Neotropical clade Gymnotiformes
Data is presented in support of model-based total evidence (MBTE) phylogenetic reconstructions of the Neotropical clade of Gymnotiformes “Model-based total evidence phylogeny of Neotropical electric knifefishes (Teleostei, Gymnotiformes)” (Tagliacollo et
Victor A. Tagliacollo +4 more
doaj +5 more sources
No presente trabalho é feito um levantamento dos casos de dimorfismo sexual em Siluriformes e Gymnotiformes. Este levantamento se restringe às formas Neotropicais, com ênfase mais especificamente, às da Amazônia.
Lúcia H. Rapp Py-Daniel +1 more
doaj +3 more sources
The present study offers a broad comparative analysis of the dorsolateral head musculature in the Gymnotiformes, with detailed descriptions and illustrations of the dorsolateral head muscles of 83 species representing combined all valid genera.
Luiz Antônio Wanderley Peixoto +1 more
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Fish, Sorocaba river sub-basin, state of São Paulo, Brazil. [PDF]
In this paper we present a list of the fish fauna of Sorocaba river sub-basin. Fish were caught with gillnets,sieves and puçás, a sort of funnel net. We listed 71 species, distributed in 7 orders, 22 families and 50 genera.Characiformes are represented ...
Smith, W. S. +2 more
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The untold story of the caudal skeleton in the electric eel (ostariophysi: gymnotiformes: electrophorus). [PDF]
Alternative hypotheses had been advanced as to the components forming the elongate fin coursing along the ventral margin of much of the body and tail from behind the abdominal region to the posterior margin of the tail in the Electric Eel, Electrophorus ...
Carlos David de Santana +2 more
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Este estudo avaliou os parasitos endohelmínticos do peixe nativo Gymnotus spp. coletados de diferentes isqueiros comerciais na bacia do Pantanal, Mato Grosso do Sul, Brasil Central.
Arlene Sobrinho VENTURA +5 more
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Fishes of the Vermelho River, São Lourenço River basin, Mato Grosso state, Brazil [PDF]
We present a list of ichthyofauna of the Vermelho River, a tributary of the São Lourenço River, Paraguay basin. Fishes were caught with seine nets measuring approximately 10 m in total length and with a mesh size of 0.5 cm.
Reinaldo de Castro, Patrícia Vizzotto
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Melanocortins regulate the electric waveforms of gymnotiform electric fish [PDF]
The hypothalamic-pituitary-adrenal/interrenal axis couples serotonergic activity in the brain to the peripheral regulators of energy balance and response to stress. The regulation of peripheral systems occurs largely through the release of peptide hormones, especially the melanocortins (adrenocorticotropic hormone [ACTH] and alpha melanocyte ...
Michael R, Markham +3 more
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Glutamatergic control of a pattern-generating central nucleus in a gymnotiform fish [PDF]
Underpinnings of neuromodulation of central pattern-generating networks (CPG) have been well characterized in many species. The effects of fast neurotransmitter systems remain, however, poorly understood. This research uses in vitro electrophysiological and pharmacological techniques to show that the neurotransmitter control of a vertebrate CPG in ...
Virginia Comas, Michel Borde
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The complete mitochondrial genome sequences of five Otophysi species (Vertebrata, Teleostei)
Complete mitochondrial genomes of the characiform fishes Astyanax fasciatus, Astyanax altiparanae, Hoplias malabaricus (Karyomorph A) and the Gymnotiformes species Gymnotus sylvius and Gymnotus cuia were characterized in the present study.
Rodrigo Milan Calegari +5 more
doaj +1 more source

