Results 161 to 170 of about 1,613 (195)

Use of long-term underwater camera surveillance to assess the effects of the largest Amazonian hydroelectric dam on fish communities. [PDF]

Sci Rep
Schmid K, Keppeler FW, da Silva FRM, da Silva Santos JH, Franceschini S, Brodersen J, Russo T, Harvey E, Reis-Filho JA, Giarrizzo T.   +9 more
europepmc   +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 ...
Garavello, Julio Cesar
exaly   +10 more sources

Chromosome Polymorphism in Species of the Pimelodidae Family (Pisces, Siluriformes) [PDF]

Hereditas, 2004
Cytogenetic studies of three species of the Pimelodidae family were carried out. The results showed a diploid chromosome number of 2n = 46 for Pimelodellu spl, 2n = 52 for Pimelodellu sp2 and 2n = 50 for Pinirampus pirinumpu. Chromosome polymorphism was detected by of G-banding analysis in Pimeladella spl and by C-banding in P. pirinampu.
Cláudio De Vasconcelos, Isabel Cristina Martins-Santos   +1 more
exaly   +8 more sources

Some of the next articles are maybe not open access.

Related searches:

Chilling of Steindachneridion parahybae (siluriformes: pimelodidae) embryos

Theriogenology, 2015
The objective of this study was to assess the viability of Steindachneridion parahybae embryos after chilling using different cryoprotectant solutions, stages of embryonic development, chilling curves, and storage periods at temperatures between -10 °C and 0 °C.
Lopes, Taís da Silva, Sanches, Eduardo Antônio, Okawara, Renan Yoshiharu, Romagosa, Elizabeth   +3 more
openaire   +3 more sources

Structural analysis of embryogenesis ofLeiarius marmoratus(Siluriformes: Pimelodidae)

Zygote, 2014
SummaryEmbryological studies in fish species are useful to the understanding of their biology and systematics. The available biological data inLeiarius marmoratusare scarce and additional information about its reproductive biology is needed, mainly because this species has been commercially exploited and used in production of hybrid lineages.
Oliveira-Almeida, Isângela Rodrigues, Buzollo, Hellen, Costa, Raphael da Silva, Veríssimo-Silveira, Rosicleire, Porto-Foresti, Fábio, Ninhaus-Silveira, Alexandre   +5 more
openaire   +3 more sources

Evolutionary history of the genus Rhamdia (Teleostei: Pimelodidae) in Central America

Molecular Phylogenetics and Evolution, 2002
We constructed phylogenetic hypotheses for Mesoamerican Rhamdia, the only genus of primary freshwater fish represented by sympatric species across Central America. Phylogenetic relationships were inferred from analysis of 1990 base pairs (bp) of mitochondrial DNA (mtDNA), represented by the complete nucleotide sequences of the cytochrome b (cyt b) and ...
Perdices, Anabel, Bermingham, Eldredge, Montilla, Antonia, Doadrio, Ignacio   +3 more
openaire   +3 more sources

Ovarian follicle growth in the catfish Iheringichthys labrosus (Siluriformes: Pimelodidae)

Tissue and Cell, 2006
The morphofunctional organisation of the female reproductive system, the oocyte growth and the follicular envelope ultrastructure were studied by the first time in the catfish Iheringichthys labrosus from Upper Paraná River basin, Southeastern Brazil, in order to contribute to the knowledge of the reproductive behaviour strategies of this species.
J E, Santos, G E V, Padilha, O, Bomcompagni-Júnior, G B, Santos, E, Rizzo, N, Bazzoli   +5 more
openaire   +2 more sources

Supernumerary chromosomes in a Rhamdia hilarii population (Pisces, Pimelodidae)

Genetica, 1990
A study was conducted on the chromosomes of a Rhamdia hilarii (Pisces, Pimelodidae) population. The results suggest that the basic chromosome number is 2n=58, with numerical variation up to a limit of 2n=63, due to the presence of supernumerary chromosomes which seem to be mitotically stable.
A. S. Fenocchio, L. A. C. Bertollo
openaire   +1 more source

Larval development of mandi‐pintado Pimelodus britskii (Siluriformes: Pimelodidae)

Journal of Fish Biology, 2019
This study investigated the morphology, morphometric and meristic characters of 117 larval Pimelodus britskii showing early development of head, eye, barbel and snout. Body and mouth pigmentation increased throughout development; the mouth was ventrally situated in the yolk‐sac stage, becoming subterminal afterwards, and an embryonic fin was visible in
Mara C. Almeida, Hugo J. Message, Paulo V. Sanches, Dirceu Baumgartner, Robie A. Bombardelli, Gilmar Baumgartner, Langeani Francisco   +6 more
openaire   +3 more sources

Isolation and characterization of microsatellite loci in Pimelodus maculatus (Siluriformes: Pimelodidae)

Molecular Ecology Resources, 2008
AbstractTo evaluate genetic variability in Pimelodus maculatus, a small migratory catfish common in South America, we isolated and characterized several microsatellite markers from individuals collected from a population in the River Grande (Brazil). A total of 11 loci were obtained and analyzed.
Ana Luiza B, Paiva, Evanguedes, Kalapothakis   +1 more
openaire   +2 more sources