Results 71 to 80 of about 3,562 (180)

A new species of inseminating catfish of the genus Tympanopleura (Siluriformes: Auchenipteridae) from the Ituxi River, Amazon River basin, northern Brazil, revealed by integrative taxonomy

Journal of Fish Biology, Volume 109, Issue 1, Page 520-530, July 2026.
Abstract A new species of the genus Tympanopleura is described from the Iquiri River, a tributary of the Ituxi River, a right‐bank tributary to the Purus River, Amazon River, northern Brazil. The new species is distinguished from all its congeners by a combination of features, such as the presence of an intensely pigmented square‐shaped blotch on the ...
Frank Raynner V. Ribeiro, Cárlison Silva‐Oliveira, Valdenor Magalhães, Lucas Gama, Lúcia H. Rapp Py‐Daniel   +4 more
wiley   +1 more source

Siluriformes Cuvier 1816

, 2007
SILURIFORMES Cuvier, 1816 Taxonomic overview: Burgess (1989), Teugels (1996), Teugels (2003a), Nelson (2006). Fauna: Eigenmann (1920b, 1922b, 1927, western South America); Herre (1926, Philippines); Hora & Gupta (1941, Malay peninsula); Kottelat et al., (1993, western Indonesia); Kottelat (2001a, Vietnam); Kottelat (2001b, Laos); Rainboth (1996 ...
openaire   +2 more sources

Genetic Structure and Conservation Strategies for the Endangered Catfish Steindachneridion melanodermatum (Siluriformes, Pimelodidae) in the Iguaçu River, Brazil

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 6, June 2026.
ABSTRACT The endemic catfish Steindachneridion melanodermatum from the Iguaçu River basin, southern Brazil, is one of the most threatened pimelodid species. Comprehension of its genetic structure is imperative to the formulation of long‐term efficacious conservation strategies. A genetic analysis was conducted on three populations from the lower Iguaçu
Jesús Hernández‐Gómez, Caio Felipe da Silva, Carolina de Oliveira Magalhães, Bruno Henrique Mattiello, Juliano Tupan Coragem, Ricardo Utsunomia, Fabio Porto‐Foresti, Fernanda Dotti do Prado, Roberto Ferreira Artoni   +8 more
wiley   +1 more source

Karyotypes of three species of marine catfishes from Brazil

Brazilian Journal of Oceanography, 1994
The chromosomes of three species of fishes belonging to the family Ariidae -Netuma barba, Genidens genidens and Amis parkeri - were studied after conventional Giemsa staining. All three species have a diploid chromosome number of 2n = 56.
Vicente Gomes, Van Ngan Phan, Maria José de Arruda Campos Rocha Passos   +2 more
doaj   +1 more source

Variação nictemeral na assembleia de peixes de um trecho de rio na Amazônia ocidental brasileira

Biotemas, 2015
Padrões de atividade circadiana estão entre os ritmos biológicos mais evidentes e detectáveis nos animais. Este artigo tem por objetivo verificar os efeitos da variação nictemeral na abundância, biomassa e composição da ictiofauna no médio rio Machado ...
Paulo de Tarso Fonseca Albuquerque, Wesclen Vilar Nogueira, Vanessa Martins Rocha, Julia Myriam de Almeida Pereira, Rinaldo Antônio Ribeiro Ribeiro Filho, Igor David Costa   +5 more
doaj   +1 more source

FAUNA IKAN SILURIFORMES DARI SUNGAI SERAYU, BANJARAN, DAN TAJUM DI KABUPATEN BANYUMAS

Jurnal MIPA, 2014
Abstrak __________________________________________________________________________________________ Sebagian besar Ordo Siluriformes hidup di perairan sungai, dan kelompok ikan ini memiliki morfologi yang sangat beragam.
D Bhagawati, MN Abulias, A Amurwanto
doaj  

Atlas of marine bony fish otoliths of Southeastern-Southern Brazil Part VIII: Siluriformes (Ariidae) and Pleuronectiformes (Achiridae, Paralichthyidae, Cynoglossidae)

Brazilian Journal of Oceanography
To complement the series of manuscripts published as "Atlas of Teleostei Otoliths of the Southeastern-Southern Brazil", in this volume we present results for species of Siluriformes (two species) and Pleuronectiformes (thirteen species) orders ...
Cesar Santificetur, Marcella Bockis Giaretta, Valéria Regina Martins Conversani, Marina Rito Brenha-Nunes, Carolina Correia Siliprandi, Carmen Lucia Del Bianco Rossi-Wongtschowski   +5 more
doaj   +1 more source

Cytogenetic analyses of two endemic fish species from the São Francisco River basin: Conorhynchus conirostris and Lophiosilurus alexandri (Siluriformes)

Genetics and Molecular Biology, 2008
Two Siluriformes species endemic to the São Francisco River basin were characterized by conventional and differential cytogenetic analyses involving C-banding, Ag-nucleolar organizer region (NOR) and chromomycin A3 (CMA3) staining, and FISH (fluorescent ...
Marilza Barbosa de Almeida Marques, Orlando Moreira-Filho, Caroline Garcia, Vladimir Pavan Margarido   +3 more
doaj   +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   +5 more sources

Baseline fish inventory of the Trombetas River rapids, a drainage of Southeastern of the Guiana Shield, Brazil [PDF]

Papéis Avulsos de Zoologia
The Trombetas River basin, a clearwater tributary of the left bank of the Amazon River, originates in the southern portion of the Guiana Shield and flows into the state of Pará, Brazil.
Felipe Arian de Andrade Araujo, Manuela Dopazo, Marlon Felipe Chumber Ferreira, Zoneibe Luz, Aline Nascimento da Silva, Maicky Lourant Porto Braga, Jamile Louise de Carvalho Malcher, Any Beatriz da Silva Damasceno, Marina Barreira Mendonça, Heriberto Gimênes Junior, Wolmar Benjamin Wosiacki, Alberto Akama   +11 more
doaj   +2 more sources