Results 181 to 190 of about 1,484 (195)

Mitochondrial genome of the Neotropical catfish Ageneiosus pardalis, Lütken 1874 (Siluriformes, Auchenipteridae)

Mitochondrial DNA Part A, 2014
Ageneiosus pardalis is a trans-Andean member of the Neotropical freshwater fish family Auchenipteridae (Siluriformes). In this work, the complete mitochondrial genome of A. pardalis was pyrosequenced by FLX 454 technology. The mitochondrial genome is 16,484 bp in length and encodes 13 proteins, 22 tRNAs and 2 ribosomal RNAs.
Natalia, Restrepo-Escobar, Juan F, Alzate, Edna J, Márquez   +2 more
openaire   +2 more sources

Phylogenetic Relationships among the Catfish Genera of the Family Auchenipteridae (Teleostei: Siluroidea)

Copeia, 1989
The Auchenipteridae is a neotropical freshwater catfish family composed of over 60 species in 21 genera. It is diagnosed as a monophyletic group on the basis of three synapomorphies: 1) a post-epioccipital process that reaches the nuchal plates or vertebral column: 2) a genital papilla formed with modified rays of the anal fin: and 3) a unique groove ...
openaire   +1 more source

Sperm and Spermatozeugma Ultrastructure in the Inseminating Catfish, Trachelyopterus lucenai (Ostariophysi: Siluriformes: Auchenipteridae)

Copeia, 2002
Abstract This study presents details of the ultrastructure of the spermatozeugmata and spermatozoa of the South American catfish, Trachelyopterus lucenai, an inseminating species. Spermatozoa are tightly packaged into unencapsulated bundles, spermatozeugmata, with as many as 130 cells comprising a single packet.
John R. Burns, Amy D. Meisner, Stanley H. Weitzman, Luiz R. Malabarba   +3 more
openaire   +1 more source

Temporal change in the parasite community of an invasive fish Trachelyopterus galeatus (Siluriformes: Auchenipteridae) in a neotropical floodplain

Parasitology Research
The construction of dams and hydroelectric plants affects biodiversity in aquatic environments and can facilitate the invasion of species. Few studies assess the long-term response of parasite fauna under these events. The aim of this study was to investigate possible changes in the endoparasite composition of the invasive catfish Trachelyopterus ...
Gabriela Michelan, Lidiany Doreto Cavalcanti, Atsler Luana Lehun, Wagner Toshio Hasuike, Ricardo Massato Takemoto   +4 more
openaire   +2 more sources

Contributions to the taxonomy of Trachelyopterus (Siluriformes): comparative cytogenetic analysis in three species of Auchenipteridae

Neotropical Ichthyology, 2021
Dayane Petik Dos Santos, Denise Felicetti, Lucas Baumgartner   +2 more
exaly  

Variation of male reproductive apparatus in relation to fertilization modalities in the catfish families Auchenipteridae and Callichthyidae (Teleostei: Siluriformes)

Journal of Fish Biology, 2007
Carlotta Mazzoldi, M B Rasotto
exaly  

Morphology and histology of the male reproductive system in two species of internally inseminating South American catfishes,Trachelyopterus lucenai andT. galeatus (Teleostei: Auchenipteridae)

Journal of Morphology, 2000
John R Burns, Stanley H Weitzman, Luiz R Malabarba   +2 more
exaly  

Nocturnal Behavior and Aspects of the Ecology of a Driftwood Catfish, Entomocorus gameroi (Auchenipteridae)

Biotropica, 1990
Marco A Rodriguez, William M Lewis
exaly  

Comparative morphology of the gas bladder in driftwood catfishes (Siluriformes: Auchenipteridae)

Journal of Morphology, 2012
José L O Birindelli, Heraldo A Britski
exaly  

Taxonomic revision of the South American catfish genus Ageneiosus (Siluriformes: Auchenipteridae) with the description of four new species

Journal of Fish Biology, 2017
Frank Raynner V Ribeiro, Lucia H Rapp Py-Daniel   +1 more
exaly