Results 21 to 30 of about 378 (145)

Ultrastructure of sonic muscles of piranhas (Serrasalmidae) [PDF]

Journal of Morphology, 2022
Abstract Among piranhas, different species are able to produce sounds but not all of them use the same mechanism. In all species, the sound‐producing muscle originates on the second vertebra, but the insertion differs.
Xavier Raick, Nicolas Thelen, Philippe Compère, Eric Parmentier   +3 more
openaire   +3 more sources

Early development of two commercially valuable fish from the lower Amazon River, Brazil (Characiformes: Serrasalmidae) [PDF]

Neotropical Ichthyology, 2022
We described the early development of Myloplus asterias and M. lobatus, two fish species of the Serrasalmidae using morphological, meristic, and morphometric characteristics.
Lucas Silva de Oliveira, Ruineris Almada Cajado, Fabíola Katrine Souza da Silva, Marcelo Costa Andrade, Diego Maia Zacardi   +4 more
doaj   +1 more source

Molecular characterization of Serrasalmidae hybrid in the upper Paraná River floodplain using molecular markers. [PDF]

J Fish Biol
Abstract This study reports the molecular identification of a tambacu—a hybrid of Colossoma macropomum and Piaractus mesopotamicus—in the floodplain of the upper Paraná River using molecular markers. The PCR‐GEL method, based on the analysis of COI and TROP fragments, successfully characterized the hybrid, while PCR‐SEQ, employing RAG2 and TROP markers,
Ramos LI, de Páris Paz E, Cavalcanti LD, Takemoto RM, de Oliveira AV.   +4 more
europepmc   +2 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

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

Ecol 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, Gallo-Cardozo F, Careaga M, Campero M.   +3 more
europepmc   +2 more sources

Threshold responses of floating meadow fish communities to floodplain forest cover in the lower Amazon River. [PDF]

Conserv Biol
Abstract Forest cover is positively associated with fish biomass and fisheries yield in the Amazon River floodplain, and many species enter flooded forests to feed, spawn, or seek refuge from predation. Floating macrophyte beds, known as floating meadows, in Amazon floodplains support high fish diversity and serve as nursery habitat for many fishes of ...
Grinstead S, Arantes CC, Winemiller KO, Kelso-Winemiller LC, de Oliveira JA, Petrere M, Freitas CEC.   +6 more
europepmc   +2 more sources

Characterization of Mitochondrial Genomes and Evolutionary Relationships in Two <i>Moenkhausia</i> (Characiformes: Acestrorhamphidae). [PDF]

Ecol Evol
This study successfully decoded the complete mitochondrial genomes of two Moenkhausia species, with total lengths of 16,439 and 16,461 bp, respectively. This study enhances genomic resources for Acestrorhamphidae and provides a foundation for investigating evolutionary mechanisms and developing molecular markers.
Sun CH, Chen XD, Zhan YJ, Xu Y, Lu CH.
europepmc   +2 more sources

Genomics of Serrasalmidae teleosts through the lens of microbiome fingerprinting [PDF]

Molecular Ecology, 2021
AbstractAssociations between host genotype and host‐associated microbiomes have been shown in a variety of animal clades, but studies on teleosts mostly show weak associations. Our study aimed to explore these relationships in four sympatric Serrasalmidae (i.e., piranha) teleosts from an Amazonian lake, using data sets from the hosts genomes (single ...
François-Étienne Sylvain, Eric Normandeau, Aleicia Holland, Adalberto Luis Val, Nicolas Derome   +4 more
openaire   +2 more sources

Genomic selection signatures in farmed Colossoma macropomum from tropical and subtropical regions in South America

Evolutionary Applications, 2022
Tambaqui or cachama (Colossoma macropomum) is one of the most important neotropical freshwater fish used for aquaculture in South America, and its production is concentrated at low latitudes (close to the Equator, 0°), where the water temperature is warm.
John Fredy Gómez Agudelo, Vito Antonio Mastrochirico‐Filho, Carolina Heloisa de Souza Borges, Raquel Belini Ariede, Lieschen Valeria Guerra Lira, Rubens Ricardo de Oliveira Neto, Milena Vieira deFreitas, Gustavo Adolfo Lenis Sucerquia, Manuel Vera, Milthon Honorio Muñoz Berrocal, Diogo Teruo Hashimoto   +10 more
doaj   +1 more source

Bite force mechanics and allometry of piranha (Serrasalmidae)

Journal of the Mechanical Behavior of Biomedical Materials, 2021
The bite force of the piranha (Serrasalmidae) has drawn considerable attention due to its ability to effectively capture and masticate prey. Herein, we analyze theoretical anterior bite forces using a lever approach and compare them to in-vivo maximum bite forces.
Audrey, Velasco-Hogan, Marc A, Meyers
openaire   +3 more sources