Results 21 to 30 of about 650 (149)

Paiche (Arapaima gigas) (Cuvier, 1829) (Osteoglossiformes: Arapaimidae): una revisión sistemática de la diversidad genética para la conservación del pez gigante del Amazonas [PDF]

open access: yesCampus, 2021
The paiche (Arapaima gigas) (Cuvier, 1829) (Osteoglossiformes: Arapaimidae) lives mainly in the countries of Peru, Brazil, Ecuador and Guyana. An exhaustive review study was carried out on genetic diversity for the conservation of A.
Gian Franco Hermoza
doaj   +3 more sources

Genetic diversity and structuring in the arapaima (Osteoglossiformes, Osteoglossidae) population reveal differences between the Amazon and the Tocantins-Araguaia basins [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2020
Arapaima is a widely-distributed fish of enormous economic importance in the Amazon region. In the present study, a total of 232 specimens were sampled, 121 from five sites in the Amazon basin and 111 from five sites in the Tocantins-Araguaia basin.
Fabrícia Nogueira   +7 more
doaj   +3 more sources

First cytogenetic information for five Nilotic elephantfishes and a problem of ancestral karyotype of the family Mormyridae (Osteoglossiformes). [PDF]

open access: yesComp Cytogenet, 2020
The elephantfish family Mormyridae is the most diverse lineage of the primitive teleostean clade Osteoglossomorpha distributed in inland waters of all continents except Antarctica and Europe.
Simanovsky S   +3 more
europepmc   +4 more sources

Genetic diversity of Arapaima gigas (Schinz, 1822) (Osteoglossiformes: Arapaimidae) in the Araguaia-Tocantins basin estimated by ISSR marker [PDF]

open access: yesNeotropical Ichthyology, 2015
The genetic diversity of the specimens of four natural populations of Arapaima from Araguaia-Tocantins basin was assessed within and among these stocks, using five primers for ISSR.
Carla A. Vitorino   +3 more
doaj   +2 more sources

Cytogenetics, genomics and biodiversity of the South American and African Arapaimidae fish family (Teleostei, Osteoglossiformes). [PDF]

open access: yesPLoS ONE, 2019
Osteoglossiformes represents one of the most ancestral teleost lineages, currently widespread over almost all continents, except for Antarctica. However, data involving advanced molecular cytogenetics or comparative genomics are yet largely limited for ...
Ezequiel Aguiar de Oliveira   +13 more
doaj   +2 more sources

Exceptionally Steep Brain-Body Evolutionary Allometry Underlies the Unique Encephalization of Osteoglossiformes

open access: yes, 2021
Brain-body static allometry, which is the relationship between brain size and body size within species, is thought to reflect developmental and genetic constraints.
Tsuboi, Masahito
core   +2 more sources

Immuno-Enzymatic and Proteomic Approaches for Sexing the African Bonytongue (Heterotis niloticus Cuvier, 1829)

open access: yesFishes, 2022
Heterotis niloticus is an African species of Osteoglossiformes that presents biological peculiarities and zootechnical performances favorable for fish farming.
N’Zi Daniel Koua   +5 more
doaj   +1 more source

First record of Ephemeropsis, Coptoclava, Coleoptera inc. sed. and Turfanograpta from Lower Cretaceous paper-shales of the western-most site of Mongolia [PDF]

open access: yesFossil Record, 2000
Nymph-fragments (and detached cerci) of the may-fly Ephemeropsis trisetalis Eichwald and the water-beetle Coptoclava longipoda Ping, a coleopteran and a shell-fragment of the conchostracan Turfanograpta sp.
H. Jähnichen, E. Kahlert
doaj   +3 more sources

First record of Ephemeropsis, Coptoclava, Coleoptera inc. sed. and Turfanograpta from Lower Cretaceous paper-shales of the western-most site of Mongolia [PDF]

open access: yesFossil Record, 2000
Nymph-fragments (and detached cerci) of the may-fly Ephemeropsis trisetalis Eichwald and the water-beetle Coptoclava longipoda Ping, a coleopteran and a shell-fragment of the conchostracan Turfanograpta sp.
H. Jähnichen, E. Kahlert
doaj   +1 more source

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