Results 1 to 10 of about 1,864 (206)

Draft genome assembly for the colombian freshwater bocachico fish, Prochilodus magdalenae [PDF]

open access: yesFrontiers in Genetics, 2023
We report the first draft genome assembly for Prochilodus magdalenae, the leading representative species of the Prochilodontidae family in Colombia. This 1.2-Gb assembly, with a GC content of 42.0% and a repetitive content of around 31.0%, is in the ...
Jonny Andrés Yepes-Blandón   +9 more
doaj   +2 more sources

Transcriptomic Analysis of Tambaqui (Colossoma macropomum) Exposed to Trichlorfon-Induced Toxicity [PDF]

open access: yesAnimals
Trichlorfon is an antiparasitic agent widely used to control pests and parasites in farmed fish. Tambaqui (C. macropomum) is the most commercially important characid species farmed in the Amazon region.
Hallana Cristina Menezes da Silva   +8 more
doaj   +2 more sources

Phycocharax rasbora, a new genus and species of Brazilian tetra (Characiformes: Characidae) from Serra do Cachimbo, rio Tapajós basin. [PDF]

open access: yesPLoS ONE, 2017
A new genus and species of characid fish is described from rio Braço Norte, a tributary of rio Teles Pires, Tapajós basin, Mato Groso, Brazil. The new taxa can be diagnosed from the remaining characids by a unique combination of characters that includes ...
Willian Massaharu Ohara   +2 more
doaj   +2 more sources

Transcriptomic analysis of the Brazilian blind characid, Stygichthys typhlops, reveals convergent selection with Astyanax mexicanus and other cavefishes

open access: yesFrontiers in Ecology and Evolution, 2023
Molecular studies have shown that Neotropical fishes of the order Characiformes have undergone two independent events of cave colonization. Among these fishes are the Mexican blind cavefish (Astyanax mexicanus), a well-studied model system for cave ...
Dahiana Arcila   +12 more
doaj   +1 more source

Revalidation of Saccocoelioides bacilliformis (Digenea, Haploporidae) parasitizing species of Astyanax (Characiformes, Characidae) from southern Brazil [PDF]

open access: yesIheringia: Série Zoologia, 2019
In Argentina, Saccocoelioides bacilliformis Szidat, 1973 was described from specimens collected probably in Astyanax bimaculatus (Linnaeus, 1758), but latter it was synonymyzed with Saccocoelioides octavus Szidat, 1970.
Moisés Gallas, Laura R. P. Utz
doaj   +1 more source

New records and distribution extension of Hyphessobrycon itaparicensis Lima & Costa, 2001 (Characiformes: Characidae) in coastal drainages of Sergipe state, northeastern Brazil [PDF]

open access: yesCheck List, 2014
The present study reports the first record of the small characid fish Hyphessobrycon itaparicensis Lima and Costa, 2001 in two coastal drainages of Sergipe State, Brazil.
Marcelo Brito   +3 more
doaj   +3 more sources

Histology of the liver of Oligosarcus jenynsii (Ostariophysi, Characidae) from Los Padres Lake, Argentina Histología del hígado de Oligosarcus jenynsii (Ostariophysi, Characidae) de la Laguna de Los Padres, Argentina

open access: yesIheringia: Série Zoologia, 2006
The liver is an organ notable for its sensitivity to a great variety of environmental factors. It is composed of a parenchyma divided into irregular lobules by the exocrine pancreas or hepatopancreas; the pancreatic cells are arranged around a branch of ...
Gladys M. Petcoff   +3 more
doaj   +1 more source

Phylogenetic relationships of the neon tetras Paracheirodon spp. (Characiformes: Characidae: Stethaprioninae), including comments on Petitella georgiae and Hemigrammus bleheri [PDF]

open access: yesNeotropical Ichthyology, 2020
Neon tetras (Paracheirodon spp.) are three colorful characid species with a complicated taxonomic history, and relationships among the species are poorly known. Molecular data resolved the relationships among the three neon tetras, and strongly supported
Pedro Senna Bittencourt   +4 more
doaj   +1 more source

Astyanax armandoi, n. sp. from Chiapas, México (Pisces Ostariophysi: Characidae) whit a Comparison to the nomical species A. aeneus and A. mexinus.

open access: yesEcosistemas y Recursos Agropecuarios, 2014
A new species of characid dish, Astyanax armandoi, is described from Penjamo, near Palenque, Chiapas, Mexico. Para obtener el articulo completo pueden contactar al Editor de la Revista Ecosistemas y Recursos Agropecuarios en el siguiente correo ...
María de Lourdes Lozano - Vilano   +1 more
doaj   +1 more source

A new species of the micro snail genus Heleobia (Caenogastropoda, Cochliopidae) from Bahia, Brazil

open access: yesPapéis Avulsos de Zoologia, 2021
The prey of a recent described characid fish, so far endemic of the small lake Pratinha (Iraquara, Bahia, Brazil), a small (~2.5 mm) lentic gastropod, revealed to be a new (possible endemic) species. It is herein formally described as Heleobia brucutu sp.
Luiz Ricardo L. Simone   +1 more
doaj   +1 more source

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