Results 11 to 20 of about 5,200 (218)

Dimorfismo sexual em Siluriformes e Gymnotiformes (Ostariophysi) da Amazônia Sexual dimorfism in Amazonian Siluriformes and Gymnotiformes (Ostariophysi) [PDF]

Acta Amazonica, 2005
No presente trabalho é feito um levantamento dos casos de dimorfismo sexual em Siluriformes e Gymnotiformes. Este levantamento se restringe às formas Neotropicais, com ênfase mais especificamente, às da Amazônia.
Lúcia H. Rapp Py-Daniel, Cristina Cox Fernandes   +1 more
doaj   +6 more sources

Hyphessobrycon nicolasi (Teleostei: Characidae) a new species from the Uruguay River basin in the Mesopotamian Region, Argentina [PDF]

Neotropical Ichthyology, 2010
Hyphessobrycon nicolasi is described from the Uruguay River basin in the Mesopotamian Region, Entre Ríos, Argentina. The new species can be distinguished from all congeners by the presence of a well-defined oblique and marginal black stripe on each lobe ...
Amalia M Miquelarena, Hugo L López
doaj   +5 more sources

Early Biogeography of Otophysi Points to the Neotropics as the Cradle of Characiphysan Fishes. [PDF]

Ecol Evol
Otophysan fishes represent 70% of living freshwater fishes with 12,000 species. Relationships among their four orders were explored through a dense taxonomic sampling including 529 complete mitochondrial genomes and 4 nuclear genes for 324 species.
Lenglin A, Hidalgo M, Miranda G, De la Sota A, Caminade P, Belkhir K, Otero O, Antoine PO, Garcia-Davila C, Hubert N.   +9 more
europepmc   +2 more sources

Development of the dorsal and anal fin in Kneria stappersii (Otomorpha: Gonorynchiformes)

Acta Zoologica, Volume 104, Issue 3, Page 287-295, July 2023., 2023
Abstract The order Gonorynchiformes was repeatedly studied to gain new insights into the evolution of its sister‐taxon, the Otophysi, the most successful freshwater fish taxon worldwide. Previous ontogenetic studies of gonorynchiforms mainly focused on the anterior vertebral column to investigate the evolutionary origin of the Weberian apparatus ...
Ann‐Katrin Koch, Timo Moritz, Philipp Thieme   +2 more
wiley   +1 more source

Diel variation in insect‐dominated temperate pond soundscapes and guidelines for survey design

Freshwater Biology, Volume 68, Issue 7, Page 1148-1160, July 2023., 2023
Abstract Passive acoustic monitoring has been used for decades as a non‐invasive tool for quantifying biodiversity in terrestrial and marine ecosystems. Recently, there has been increased interest in the potential for the method to survey freshwater biodiversity.
Jack A. Greenhalgh, Martin J. Genner, Gareth Jones   +2 more
wiley   +1 more source

Genetic Diversity and Cryptic Species Identification of Genus Triplophysa from River Swat in Malakand Division, Khyber Pakhtunkhwa, Pakistan

Journal of Applied Ichthyology, Volume 2023, Issue 1, 2023., 2023
Fish are cold blooded vertebrates’ identification on the bases of morphology is not more precise and required high taxonomic expertise therefore molecular identification is used as an alternative and more accurate technique for the identification of fishes.
Omer Dad, Muhammad Fiaz Khan, Akhtar Rasool, Naveed Akhtar, Mohammad Attaullah, Hamed Ghafarifarsani   +5 more
wiley   +1 more source

Large‐scale DNA barcoding of the subfamily Culterinae (Cypriniformes: Xenocyprididae) in East Asia unveils a geographical scale effect, taxonomic warnings and cryptic diversity

Molecular Ecology, Volume 31, Issue 14, Page 3871-3887, July 2022., 2022
Abstract Geographical scale might be expected to impact significantly the efficiency of DNA barcoding as spatially comprehensive sampling provides opportunities to uncover intricate relationships among closely related species and to detect cryptic diversity for widespread taxa.
Weitao Chen, Nicolas Hubert, Yuefei Li, Denggao Xiang, Xingwei Cai, Shuli Zhu, Jiping Yang, Chuanjiang Zhou, Xinhui Li, Jie Li   +9 more
wiley   +1 more source

New phylogenetic insights into the African catfish families Mochokidae and Austroglanididae

Journal of Fish Biology, Volume 100, Issue 5, Page 1171-1186, May 2022., 2022
Abstract Several hundred catfish species (order: Siluriformes) belonging to 11 families inhabit Africa, of which at least six families are endemic to the continent. Although four of those families are well‐known to belong to the ‘Big‐Africa clade’, no previous study has addressed the phylogenetic placement of the endemic African catfish family ...
Frederic D. B. Schedel, Albert Chakona, Brian L. Sidlauskas, Michael O. Popoola, Nadine Usimesa Wingi, Dirk Neumann, Emmanuel J. W. M. N. Vreven, Ulrich K. Schliewen   +7 more
wiley   +1 more source

The Angiosperm Terrestrial Revolution and the origins of modern biodiversity

New Phytologist, Volume 233, Issue 5, Page 2017-2035, March 2022., 2022
Summary Biodiversity today has the unusual property that 85% of plant and animal species live on land rather than in the sea, and half of these live in tropical rainforests. An explosive boost to terrestrial diversity occurred from c. 100–50 million years ago, the Late Cretaceous and early Palaeogene. During this interval, the Earth‐life system on land
Michael J. Benton, Peter Wilf, Hervé Sauquet   +2 more
wiley   +1 more source

Biogeography of curimatid fishes reveals multiple lowland–upland river transitions and differential diversification in the Neotropics (Teleostei, Curimatidae)

Ecology and Evolution, Volume 11, Issue 22, Page 15815-15832, November 2021., 2021
The time‐calibrated molecular phylogeny and geographic range evolution of the Neotropical family Curimatidae show a Late Cretaceous origin in lowland basins of South America with subsequent colonization to upland basins at multiple times during the Cenozoic.
Bruno F. Melo, James S. Albert, Fernando C. P. Dagosta, Victor A. Tagliacollo   +3 more
wiley   +1 more source