Results 11 to 20 of about 14,329 (219)

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

open access: yesEcol 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   +9 more
europepmc   +2 more sources

Ecological Factors and Diversification among Neotropical Characiforms [PDF]

open access: yes, 2012
Morphological and DNA sequence data has been used to propose hypotheses of relationships within the Characiformes with minimal comparative discussion of causes underpinning the major intraordinal diversification patterns.
Duque Escobar, Santiago Roberto   +5 more
core   +4 more sources

Weight-Length Ratio of Piranhas <i>Serrasalmus</i> (Characiformes, Serrasalmidae) in Bolivia: Relationships to Molecular Divergence and Maximum Size? [PDF]

open access: yesEcol Evol
This study presents WLRs of nine piranha or palometa fish species of genus Serrasalmus present in the Amazon and La Plata basins of Bolivia and compares differences with genetic divergence (mtDNA COI locus) and the observed maximum size. All species showed an exponential (power type) growth pattern, and all WLRs were significantly different among all ...
Carvajal-Vallejos FM   +3 more
europepmc   +2 more sources

Ecological Niche Modeling of <i>Hoplias malabaricus</i> (Characiformes, Erythrinidae) Under Climate Change Scenarios. [PDF]

open access: yesEcol Evol
This study employs ecological niche models (ENMs) to project current and future habitat suitability for a genetically validated lineage of Hoplias malabaricus, a widely distributed Neotropical freshwater predator. ABSTRACT Freshwater fish are highly vulnerable to climate change because they are restricted to inland waters and cannot readily disperse ...
Guimarães KLA   +2 more
europepmc   +2 more sources

External Morphology of Leporinus oliveirai (Characiformes: Anostomidae) During Early Life Stages. [PDF]

open access: yesJ Morphol
Herein, we describe the early development of Leporinus oliveirai, a recently described species, documenting its external morphology with photographs and illustrations. The ontogeny of L. oliveirai is compared with other anostomids and developmental patterns are described for the family.
Ito ISB   +4 more
europepmc   +2 more sources

A new species of Characidium (Characiformes: Crenuchidae) from the Iguaçu National Park, Rio Iguaçu basin, Paraná, Brazil. [PDF]

open access: yesJ Fish Biol
Abstract A new species of Characidium is described from the Iguaçu National Park, Brazil. The new species can be diagnosed from the congeners by the absence of conspicuous vertical bars, blotches and spots along the sides of the body, the presence of a scaled isthmus and adipose fin, a series of scales below lateral line and the presence of a thin dark
Stabile BHM   +3 more
europepmc   +2 more sources

Ontogeny of the Skeleton of Leporinus oliveirai (Characiformes, Anotomidae). [PDF]

open access: yesJ Morphol
ABSTRACTThe skeleton is a rich source of characters used in phylogenetic studies of teleost fishes. However, the development of bones was studied in a limited number of species and few studies have been published describing the ontogeny of the Characiformes skeleton.
Boaretto MP   +2 more
europepmc   +3 more sources

Characterization of the complete mitochondrial genome of Hyphessobrycon herbertaxelrodi (Characiformes, Characidae) and phylogenetic studies of Characiformes [PDF]

open access: yesMitochondrial DNA Part B, 2020
In this study, the complete mitochondrial genome of Hyphessobrycon herbertaxelrodi is presented, and we also discussed its mitochondrial characteristics. The full length of the mitochondrial genome was 17,417 bp, including 13 protein coding genes (PCGs), 2 ribosomal RNAs (12S and 16S), 22 transfer RNA genes, 1 non-coding control region (D-loop), and 1 ...
Kun Zhang   +9 more
openaire   +3 more sources

First report of four characiform fishes (Ostariophysi: Characiformes) for Uruguay [PDF]

open access: yesCheck List, 2013
In this article the authors present the first report of four characiform fish species for Uruguay, extending their current distribution to the middle and lower Uruguay River basin: Astyanax saguazu Casciotta, Almirón and Azpelicueta, 2003; Hypobrycon poi Almirón, Casciotta, Azpelicueta and Cione, 2001; Leporinus amae Gody, 1980; Cyphocharax saladensis (
Serra, W.S.   +6 more
openaire   +3 more sources

The complete mitochondrial genome of Hemigrammus bleheri (Characiformes: Hemigrammus) and phylogenetic studies of Characiformes [PDF]

open access: yesMitochondrial DNA Part B, 2019
Complete mitochondrial genome of the characiform fish Hemigrammus bleheri was characterized in the present study. The whole mitogenome was 17,021 bp in size and consisted of 13 protein-coding genes (PCGs), 22 tRNAs, 2 rRNAs genes, a control region, and origin of light-strand replication.
Qi Wang   +7 more
openaire   +3 more sources

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