Sperm of Doradidae (Teleostei: Siluriformes)
Spermatic characteristics were studied in 10 species representing several distinct groups within the catfish family Doradidae. Interestingly, different types of spermatogenesis, spermiogenesis and spermatozoa are correlated with intrafamilial groups previously proposed for Doradidae.
Quagio-Grassiotto, I. +3 more
openaire +3 more sources
The Victoria Falls, a species boundary for the Zambezi Parrotfish, Cyphomyrus discorhynchus (Peters, 1852), and the resurrection of Cyphomyrus cubangoensis (Pellegrin, 1936) (Mormyridae: Teleostei) [PDF]
Cyphomyrus discorhynchus occurs in the Zambezi River and in the linked systems of the Kwando and the Okavango. We collected specimens from both above and below the Victoria Falls and recorded Electric Organ Discharges.
Kramer, Bernd, Van der Bank, F. Herman
core +2 more sources
Fish composition (Teleostei) of the estuarine region of the Macaé River, southeastern Brazil [PDF]
The first checklist of fishes of the estuary of the Macaé River (Rio de Janeiro State, Brazil) and its adjacent freshwater section is presented. A total of 24,157 specimens belonging to 110 species in 44 families and 21 orders of the Teleostei were ...
Paula Catelani +4 more
doaj +3 more sources
Morphology, molecules and the phylogeny of Characidae (Teleostei, Characiformes)
This is the most comprehensive phylogenetic analysis of the Characidae to date and the first large‐scale hypothesis of the family, combining myriad morphological data with molecular information.
J. M. Mirande
semanticscholar +1 more source
Electric communication during courtship and spawning in two sibling species of dwarf stonebasher from southern Africa, Pollimyrus castelnaui and P. marianne (Mormyridae, Teleostei): evidence for a non species-specific communication code? [PDF]
The fixed part of the electrocommunication signal, the electric organ discharge (EOD) waveform, is well differentiated in the two vicariant dwarf stonebasher species, Pollimyrus castelnaui and P. marianne. However, differentiation regarding the variable,
Baier, Bernd, Kramer, Bernd
core +1 more source
The accumulation of repetitive DNA sequences on the sex-limited W or Y chromosomes is a well-known process that is likely triggered by the suppression of recombination between the sex chromosomes, which leads to major differences in their sizes and ...
Ricardo Utsunomia +9 more
semanticscholar +1 more source
Genomics and mapping of Teleostei (bony fish) [PDF]
AbstractUntil recently, the Human Genome Project held centre stage in the press releases concerning sequencing programmes. However, in October 2001, it was announced that the Japanese puffer fish (Takifugu rubripes, Fugu) was the second vertebrate organism to be sequenced to draft quality. Briefly, the spotlight was on fish genomes. There are currently
openaire +2 more sources
Thinlip grey mullet Liza ramada (Mugilidae) caught in a
Two individuals of thinlip grey mullet Liza ramada were collected in a southern Norwegian brook (58° 22’ N, 8° 37’ E) on 12th September 2007. The fish were 8.7 and 9.0 cm in total length, 6 and 7 g in total mass, and most probably in their first year of ...
Bror Jonsson, Nina Jonsson
doaj +1 more source
Phylogenomic Signatures of Ancient Introgression in a Rogue Lineage of Darters (Teleostei: Percidae)
&NA; Evolutionary history is typically portrayed as a branching phylogenetic tree, yet not all evolution proceeds in a purely bifurcating manner. Introgressive hybridization is one process that results in reticulate evolution.
Daniel J. MacGuigan, T. Near
semanticscholar +1 more source
Ontogeny of the osteocranium in the African catfish, Clarias gariepinus burchell (1822) (Siluriformes: Clariidae): Ossification sequence as a response to functional demands [PDF]
A
Adriaens, Dominique, Verraes, Walter
core +2 more sources

