Results 41 to 50 of about 3,364 (181)

Morfología de Lapillus de siluriformes parano-platenses

Biología Acuática, 2019
Los otolitos de los peces son complejos policristalinos, compuestos principalmente por carbonato de calcio. El lapillus suele ser el otolito más conspicuo de los peces siluriformes.
Daniela V. Fuchs, Alejandra V. Volpedo
doaj  

Metazoan parasites of Mandi-amarelo Pimelodus maculatus and of Jundiá Rhamdia quelen (Osteichthyes: Siluriformes) of Paraíba do Sul River, Volta Redonda, Rio de Janeiro Metazoários parasitos do Mandi-amarelo Pimelodus maculatus e do Jundiá Rhamdia quelen(Osteichthyes: Siluriformes) do Rio Paraíba do Sul, Volta Redonda, Rio de Janeiro

Revista Brasileira de Parasitologia Veterinária, 2010
Forty-one specimens of mandi-amarelo Pimelodus maculatus Lacépède, 1803 (Siluriformes: Pimelodidae) and 54 specimens of jundiá Rhamdia quelen (Quoy & Gaimard, 1824) (Siluriformes: Heptapteridae) were collected from the Paraíba do Sul River, Volta Redonda,
Aline Cristine Pinto Venancio, Gesilene Ribeiro de Aguiar, Patrícia da Silva Lopes, Dimitri Ramos Alves   +3 more
doaj   +1 more source

The complete mitochondrial genome of electric catfish Malapterurus electricus and its phylogeny

Mitochondrial DNA. Part B. Resources, 2022
Electric catfishes evolved the substantial electric organ that can instantly release powerful high-voltage electricity. To better study the phylogenetic position of the electric fish (Malapterurus electricus) in catfishes, in this study, we presented the
Yongxin Li, Hui Jiang
doaj   +1 more source

Integrative taxonomy reveals four new species of the armoured catfish genus Pareiorhina (Siluriformes: Loricariidae) from the upper Paraná River basin, Brazil

Journal of Fish Biology, EarlyView.
Abstract Four new species of the small‐sized armoured catfish genus Pareiorhina are described from mountain ranges in the Grande River drainage, upper Paraná River basin, based on morphological and molecular species delimitation methods. Molecular analyses based on the cytochrome oxidase subunit I (COI) marker recovered Pareiorhina as polyphyletic ...
Pedro L. C. Uzeda, Luana J. Sartori, Axel M. Katz, Felipe P. Ottoni, Wilson J. E. M. Costa, Francisco Langeani, Valter M. Azevedo‐Santos   +6 more
wiley   +1 more source

A new catfish species of Microcambeva Costa & Bockmann, 1994 (Siluriformes: Trichomycteridae) from southern Brazil, with a redescription of M. ribeirae Costa, Lima & Bizerril, 2004

Journal of Fish Biology, EarlyView.
Abstract Among the few species of Microcambeva reported as occurring in more than one hydrographic basin, M. ribeirae has been previously listed from both the Ribeira de Iguape and the Guaraqueçaba basins. However, morphological and molecular analyses revealed that the specimens from Guaraqueçaba represent a new species, which is described in this ...
Lucas S. de Medeiros, Igor C. A. Souto‐Santos, Paulo A. Buckup, Juliano Ferrer, Vinicius J. C. Reis, Mario de Pinna, Sergio M. Q. Lima   +6 more
wiley   +1 more source

Revision of genus Steindachneridion (Siluriformes: Pimelodidae) [PDF]

Neotropical Ichthyology, 2005
After several years collecting in the type-localities and studying representative samples of genus Steindachneridion Eigenmann & Eigenmann, 1919 from Brazilian and foreign museums, a taxonomic revision of the Recent species of the genus is presented, including the description of a new species from the rio Iguaçu, above the great falls ...
openaire   +4 more sources

Karyotypic diversity and evolution of Loricariidae (Pisces, Siluriformes) [PDF]

Heredity, 2004
We present cytogenetic analyses of four fish species, belonging to four Loricariidae subfamilies: Neoplecostomus microps (Neoplecostominae) with 2n=54 chromosomes, Harttia loricariformis (Loricariinae) with 2n=56 chromosomes, Hypostomus affinis (Hypostominae) with 2n=66 chromosomes and Upsilodus sp. (Upsilodinae), with 2n=96 chromosomes. In addition to
K F, Kavalco, R, Pazza, L A C, Bertollo, O, Moreira-Filho   +3 more
openaire   +2 more sources

Observaciones sobre gónadas de algunas especies de peces del Paraná medio

Acta Zoológica Lilloana, 2022
Este artículo trata sobre las gónadas de algunas especies pertenecientes a siete familias de peces Characiformes y Siluriformes que se encuentran en el medio y bajo río Paraná.
Clarice Pignalberi
doaj  

Reproductive plasticity and environmental tolerance of invasive African catfish (Clarias gariepinus) in a tropical Brazilian river

Journal of Fish Biology, EarlyView.
Abstract Invasive alien species (IAS) pose a significant threat to biodiversity, particularly when endowed with high ecological and reproductive plasticity. The African catfish, Clarias gariepinus, is one such species, widely recognized for its ability to colonize and establish in diverse tropical ecosystems.
Michelle Torres Dumith, Alejandra Filippo Gonzalez Neves dos Santos   +1 more
wiley   +1 more source

The complete mitogenome of Glyptothorax deqinensis (Siluriformes: Sisoridae) [PDF]

Mitochondrial DNA Part B, 2019
Glyptothorax deqinensis is a small endangered Sisoridae fish mainly distributed in the southwest of China. In the present study, the complete mitochondrial genome of G. deqinensis was firstly sequenced. The total length of the G. deqinensis mitogenome is 16,542 bp, including 13 protein-coding genes, two ribosomal RNA genes, 22 transfer RNA genes, and a
Tingbing Zhu, Chuankun Zhu, Yongfeng He, Deguo Yang   +3 more
openaire   +3 more sources