Results 11 to 20 of about 842 (172)

A state-of-art review of Loricariidae (Ostariophysi: Siluriformes) cytogenetics [PDF]

Neotropical Ichthyology
Loricariidae is a Neotropical fish family divided into six subfamilies and ranking in third among the most biodiverse fish groups. This study conducts an updated review of the cytogenetic investigations within the family, discussing the trends in ...
Francisco de Menezes Cavalcante Sassi, Marcelo de Bello Cioffi, Orlando Moreira-Filho   +2 more
doaj   +2 more sources

Mitochondrial transcripts and associated heteroplasmies of Ancistrus spp. (Siluriformes: Loricariidae)

Data in Brief, 2015
This data-set complements our paper entitled “The use of transcriptomic next-generation sequencing data to assembly mitochondrial genomes of Ancistrus spp. (Loricariidae)” [6].
Daniel A. Moreira, Carolina Furtado, Thiago E. Parente   +2 more
doaj   +3 more sources

New insights into the putative XX/XY sex chromosomal system in blue-eyed red-fin pleco Hypostomus soniae (Siluriformes, Loricariidae). [PDF]

J Fish Biol
Abstract Blue‐eyed red‐fin pleco Hypostomus soniae (family Loricariidae) presented a putative sex system XX/XY in early stage. Aiming to explore the inter‐populational karyotypic variation and proposed emergence of the XX/XY system, we studied 13 H. soniae individuals (6 males, 7 females) from the Tapajós River.
Maciel LAM, Rodrigues Noronha RC, de Almeida BRR, Cavalcante MG, Nagamachi CY, Pieczarka JC, Rodrigues LRR.   +6 more
europepmc   +2 more sources

Linking rivers, mixing faunas: How artificial connectivity between the Middle and Upper Paraná River basins shapes fish diversity in a tributary of the Itaipu Reservoir, Brazil. [PDF]

J Fish Biol
Abstract This work aimed to investigate the distribution and occurrence of fish species along the São Francisco Falso Braço Norte (SFFBN) River basin, a tributary of the Middle Paraná River basin now artificially connected to the Upper Paraná ecoregion, to evaluate how such connectivity may affect the biogeographic distribution and regional composition
Kampfert LEP, Maicrovicz JC, Blanco DR, Lange D, Pavanelli CS, Brandão H.   +5 more
europepmc   +2 more sources

A new species of Peckoltia (Siluriformes, Loricariidae) from the rapids of the Rio Tocantins-Araguaia basin, Brazil. [PDF]

J Fish Biol
Abstract Here, we describe a new species of Peckoltia (Loricariidae; Hypostominae) from the rapids of the Rio Tocantins‐Araguaia basin, previously identified as Peckoltia vittata, using an integrative taxonomy approach. The new species is distinguished from congeners by ventral region presenting diffuse stripes on surface, not presenting spots or ...
de Araújo FAA, Ferreira MFC, Silva AN, Wosiacki WB.   +3 more
europepmc   +2 more sources

Complete Mitochondrial Genome of <i>Gyrodactylus nigeri</i> (Platyhelminthes: Monogenea). [PDF]

Ecol Evol
The fish Yunnanilus niger is the host of Gyrodactylus nigeri. The mitochondrial genome of G. nigeri is 14,903 bp in length. Phylogenetic analyses indicated that this species belonged to the genus Gyrodactylus and Gyrodactylidae forms an independent monophyletic clade within Gyrodactylidea.
Yang Y, Liu Y, Yue W, Chen Y, Kang M, He Y, Chen T.   +6 more
europepmc   +2 more sources

The species of Hemiancistrus (Siluriformes: Loricariidae) from Ecuador [PDF]

Zootaxa, 2017
At the Fish Collection of the Instituto de Ciencias Biológicas, Escuela Politécnica Nacional, Quito, three species traditionally grouped in the genus Hemiancistrus were identified: H. annectens (Regan 1904), H. landoni Eigenmann 1916, and a new specie described here.
Provenzano R., Francisco, Barriga, Ramiro   +1 more
openaire   +4 more sources

Cytogenetic analysis of five Hypostomus species (Siluriformes, Loricariidae) [PDF]

Genetics and Molecular Biology, 2011
In this work, we analyzed the karyotypes of five Hypostomus species. Hypostomus cf. heraldoi, from the Mogi-Guaçu River, had 2n = 72 chromosomes, with a nucleolar organizer region (NOR) in one chromosomal pair. Hypostomus regani, from the Mogi-Guaçu River had 2n = 72 chromosomes with NORs in two chromosomal pairs.
Martinez, Emanuel Ricardo Monteiro, Zawadzki, Claudio Henrique, Foresti, Fausto, Oliveira, Claudio   +3 more
openaire   +12 more sources

Systematics of Pseudotothyris (Loricariidae: Hypoptopomatinae) [PDF]

Zoological Journal of the Linnean Society, 2014
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) ; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) ; Processo FAPESP: 09/11873-0 ; Processo FAPESP: 04/00545-8 ; CNPq: 305.946/2011-0 ; CNPq: 305053/2011-6 ; Pseudotothyris Britski & Garavello, 1984 is a genus of small catfishes distributed only in coastal basins in ...
Martins, Fernanda O., Britski, Heraldo A., Langeani, Francisco   +2 more
openaire   +2 more sources

The taxonomic status of Farlowella colombiensis Retzer & Page 1997 with comments on species of the F. acus species group (Loricariidae: Loricariinae). [PDF]

J Fish Biol
Abstract The genus Farlowella has been historically challenging, in part due to the difficulty in defining diagnostic characters for defining and identifying the species. Farlowella colombiensis is one such example, whose diagnostic characters are based on caudal‐fin colour pattern, ventral pattern of body cover and anatomical details of the head, such
Melo-Ortiz OE, Retzer ME, Prada-Pedreros S, Prada-Pedreros S, Ballen GA.   +4 more
europepmc   +2 more sources