Results 41 to 50 of about 76,747 (382)

Diversity, phylogenetic distribution, and origins of venomous catfishes

BMC Evolutionary Biology, 2009
Background The study of venomous fishes is in a state of relative infancy when compared to that of other groups of venomous organisms. Catfishes (Order Siluriformes) are a diverse group of bony fishes that have long been known to include venomous taxa ...
Wright Jeremy J
doaj   +1 more source

Whole genome duplication and transposable element proliferation drive genome expansion in Corydoradinae catfishes

Proceedings of the Royal Society B: Biological Sciences, 2018
Genome size varies significantly across eukaryotic taxa and the largest changes are typically driven by macro-mutations such as whole genome duplications (WGDs) and proliferation of repetitive elements.
Sarah Marburger, Markos A. Alexandrou, J. Taggart, S. Creer, G. Carvalho, Cláudio Oliveira, Martin I. Taylor   +6 more
semanticscholar   +1 more source

Spatial distribution and interaction of four species of the catfish genus Hypostomus Lacépède with bottom of Rio São Francisco, Canindé do São Francisco, Sergipe, Brazil (Pisces, Loricariidae, Hypostominae)

Brazilian Journal of Biology
The large catfishes, genus Hypostomus Lacépède, are common species in almost all freshwater environments of South America. The behavior of specimens from the species Hypostomus alatus, Hypostomus francisci, Hypostomus cf.
J. C. Garavello, J. P. Garavello
doaj   +1 more source

Shift from slow- to fast-water habitats accelerates lineage and phenotype evolution in a clade of Neotropical suckermouth catfishes (Loricariidae: Hypoptopomatinae)

PLoS ONE, 2017
Identifying habitat characteristics that accelerate organismal evolution is essential to understanding both the origins of life on Earth and the ecosystem properties that are most critical to maintaining life into the future.
F. Roxo, N. Lujan, Victor A. Tagliacollo, Brandon T. Waltz, Gabriel S. C. Silva, C. Oliveira, J. Albert   +6 more
semanticscholar   +1 more source

Diversity of helminth parasites of eight siluriform fishes from the Aguapeí River, upper Paraná basin, São Paulo state, Brazil

International Journal for Parasitology: Parasites and Wildlife, 2020
Fishes of the order Siluriformes, known as catfishes, have a global distribution with more than 3,600 valid species of which 2,087 occur in the Neotropical region.
Aline A. Acosta, Nico J. Smit, Reinaldo J. da Silva   +2 more
doaj   +1 more source

Cytogenetical analyses in three fish species of the genus Pimelodus(Siluriformes: Pimelodidae) from rio São Francisco: considerations about the karyotypical evolution in the genus

Neotropical Ichthyology
Karyotypes and other chromosomal markers were investigated in three species of the catfish genus Pimelodus, namely P. fur, P. maculatus and Pimelodus sp., from municipality of Três Marias, Minas Gerais, Brazil, using differential staining techniques (C ...
Caroline Garcia, Orlando Moreira Filho
doaj   +1 more source

Effects of Dimethoate Insecticide on Serum Biochemistry of African Catfish (Clarias gariepinus) Juveniles

Journal of Applied Sciences and Environmental Management, 2021
The present study was designed to investigate acute toxicity of  dimethoate on juvenile Clarias gariepinus. Catfish with mean weight and length of 24.01 ± 11.60 g and 13.98 ± 5.66 cm respectively were exposed to sub-lethal levels of dimethoate in static
O.O. Oghale, A.C. Okoboshi, A.P. Chinedu-Ndukwe, K.C. Kanu, M. Beka, D.A. Avoaja   +5 more
doaj   +1 more source

Neuroanatomical diversity in Teleocichla with new volumetric and histological insights into the encephalon of Teleocichla monogramma Kullander 1988

The Anatomical Record, EarlyView.
Abstract Teleocichla comprises small cichlids that inhabit the rapid streams of Amazonian rivers; however, there has been limited research on their encephalon morphology. This study examined the neuroanatomy of four species, focusing on volumetric measurements of their encephalon subregions, and providing a histological description of the encephalon of
Renan Leão‐Reis, Keila Xavier Magalhães, Thiago Nilton A. Pereira, Janice Muriel‐Cunha, Alberto Akama   +4 more
wiley   +1 more source

Advances in Reproductive Endocrinology and Neuroendocrine Research Using Catfish Models

Cells, 2021
Catfishes, belonging to the order siluriformes, represent one of the largest groups of freshwater fishes with more than 4000 species and almost 12% of teleostean population.
Balasubramanian Senthilkumaran, Sonika Kar   +1 more
doaj   +1 more source

Cranial anatomy of a Late Cretaceous aspidorhynchid fish (Neopterygii: Aspidorhynchiformes) from Alberta, Canada

The Anatomical Record, EarlyView.
Abstract Belonostomus longirostrisis was named for an isolated jaw fragment from freshwater Upper Cretaceous (Campanian) sediments of the Dinosaur Park Formation of Alberta, Canada. Following the description of the Albertan species, numerous isolated cranial and postcranial elements have been collected from the Dinosaur Park Formation and assigned to B.
Mondo Miyazato, Luke E. Nelson, Joshua A. Doyon, Donald B. Brinkman, Alison M. Murray   +4 more
wiley   +1 more source