Results 111 to 120 of about 3,600 (245)
Neotropical IchthyologyThis study presents details of sperm ultrastructure for Gymnotus aff. carapo (Gymnotidae), Eigenmannia trilineata (Sternopygidae), and three Brachyhypopomus species (B. draco, B. bombilla, and B. gauderio - Hypopomidae) from southern Brazil.
Júlia Giora, John R. Burns
doaj +1 more source
Karyotypic Diversity and Evolution in a Sympatric Assemblage of Neotropical Electric Knifefish
Frontiers in Genetics, 2018 Chromosome changes can perform an important role in speciation by acting as post-zygotic reproductive barriers. The Neotropical electric fish genus Brachyhypopomus (Gymnotiformes, Hypopomidae) has 28 described species, but cytogenetic data are hitherto ...
Adauto L. Cardoso +9 more
doaj +1 more source
Phylogenetic revision of Gymnotidae (Teleostei: Gymnotiformes), with descriptions of six subgenera
PLOS ONE, 2019 The diversity of gymnotid electric fishes has been intensely studied over the past 25 years, with 35 species named since 1994, compared to 11 species in the previous 236 years. Substantial effort has also been applied in recent years to documenting gymnotid interrelationships, with seven systematic studies published using morphological and molecular ...
Jack M. Craig +3 more
openaire +4 more sources
Sampling neotropical young and small fishes in their microhabitats : an improvment of the quatrefoil light trap [PDF]
, 1994 An improved version of the quatrefoil light trap was tested in a tributary of the Sinnamary river, French Guiana, South America, at the beginning of the rainy season.
Ponton, Dominique
core
The diversity and evolution of electric organs in Neotropical knifefishes. [PDF]
Evodevo, 2022 Bray IE, Alshami IJJ, Kudoh T.
europepmc +1 more source
Karyotype description and comparative chromosomal mapping of rDNA and U2 snDNA sequences in Eigenmannialimbata and E.microstoma (Teleostei, Gymnotiformes, Sternopygidae). [PDF]
Comp Cytogenet, 2022 Araya-Jaime CA +5 more
europepmc +1 more source
A portable bio-amplifier for electric fish research: design and construction
Neotropical IchthyologyThe weak electric organ discharges (EODs) of gymnotiform knife fishes can be readily amplified with a wideband amplifier connected to submerged electrodes.
Jonathan K. Wells +1 more
doaj +1 more source
, 2019 O presente documento é composto por 18 resumos de trabalhos dos acadêmicos do curso de Ciências Biológicas e de outros cursos, apresentados no V Encontro de Iniciação Científica da Embrapa Pantanal e Universidade Federal de Mato Grosso do Sul, na X ...
ENCONTRO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA PANTANAL, 5. +1 more
core +1 more source
Neotropical IchthyologyResemblance to dead leaves is a well known type of camouflage recorded for several small vertebrates that dwell in the leaf and root litter on the ground.
Ivan Sazima +3 more
doaj +1 more source