Results 11 to 20 of about 412 (157)

Genomic Insights Into Carnivorous Fish in the Characiformes. [PDF]

Ecol Evol
This study employed comparative genomic approaches using 12 high‐quality Characiformes genomes (covering nine subfamilies) with zebrafish as an outgroup to explore the molecular mechanisms underlying the carnivorous adaptation of Characiformes. Expanded gene families, positively selected genes, and rapidly evolving genes in carnivorous species were ...
Zhao S, Mei X, Zhang Z, Xia T, Zhou S, Dong Y, He S, Yao Z, Li Y, Yang X, Zhang H.   +10 more
europepmc   +2 more sources

Multiparasitism by myxozoans in Pygocentrus nattereri (Characiformes: Serrasalmidae) from Sacaizal Lake, in the municipality of Pracuúba, state of Amapá, Brazil [PDF]

Revista Brasileira de Parasitologia Veterinária
The present study described the morphological characteristics of myxospores of cnidarians belonging to the class Myxozoa at different infection sites in Pygocentrus nattereri Kner 1858 (Characiformes: Serrasalmidae), found in Lake Sacaizal, in the ...
Nayana Moraes de Sena, Jhonata Eduard, Camila Maria Barbosa Pereira, José Ledamir Sindeaux Neto, Michele Velasco   +4 more
doaj   +2 more sources

Occurrence of Myxobolus spp. (Myxozoa) in the blood of Metynnis lippincottianus (Osteichthyes: Serrasalmidae) from eastern Amazon, Brazil [PDF]

Revista Brasileira de Parasitologia Veterinária
Myxozoans are obligatory parasites and can be found in various organs and bloodstreams of fish, thus, the objective of this work was to describe the occurrence of Myxobolus spp.
Nyelle Priscila Brito Façanha, Rafaela Franco de Araújo, Aldi Feiden, Géssica Laila Matos da Silva, Maria Danielle Figueiredo Guimarães Hoshino, Eliane Tie Oba Yoshioka, Marcela Nunes Videira   +6 more
doaj   +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

The emergence of pathogens on fish in an impacted estuary and the role of non-native piranhas in a potential bacterial infectious outbreak. [PDF]

J Fish Biol
Abstract As many tropical aquatic ecosystems worldwide, the Doce River estuary (DRE, southeastern Brazil) has increasingly faced multiple anthropogenic threats, including deforestation, mining, species introduction and water management. The 2015 collapse of the Fundão iron ore tailings dam severely changed water properties and increased heavy metal ...
Andrades R, Guabiroba HC, Bastos KV, Rodrigues VLA, Santos MRD, Arpini CM, Flecher MC, Pichler HA, Vilar CC, Hostim-Silva M, Joyeux JC.   +10 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

Convolutional Neural Networks in the Inspection of Serrasalmids (Characiformes) Fingerlings [PDF]

Animals
Aquaculture produces more than 122 million tons of fish globally. Among the several economically important species are the Serrasalmidae, which are valued for their nutritional and sensory characteristics.
Marília Parreira Fernandes, Adriano Carvalho Costa, Heyde Francielle do Carmo França, Alene Santos Souza, Pedro Henrique de Oliveira Viadanna, Lessandro do Carmo Lima, Liege Dauny Horn, Matheus Barp Pierozan, Isabel Rodrigues de Rezende, Rafaella Machado dos S. de Medeiros, Bruno Moraes Braganholo, Lucas Oliveira Pereira da Silva, Jean Marc Nacife, Kátia Aparecida de Pinho Costa, Marco Antônio Pereira da Silva, Rodrigo Fortunato de Oliveira   +15 more
doaj   +2 more sources

Monogeneans of Colossoma macropomum (Cuvier, 1818) (Characiformes: Serrasalmidae) farmed in the state of Acre, Amazon (Brazil). [PDF]

Rev Bras Parasitol Vet, 2022
Abstract Parasitism of Colossoma macropomum is of particular concern because it is the most commonly farmed native fish species in Brazil. Nevertheless, the parasitic fauna of this species in the state of Acre has been little studied. For this reason, an evaluation was made of the parasitic fauna of farmed C.
Silva MTD, Cavalcante PHO, Santos CP.
europepmc   +5 more sources

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

J Fish Biol
AbstractThis 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   +3 more sources

Comparative cytogenetics of Serrasalmidae (Teleostei: Characiformes): The relationship between chromosomal evolution and molecular phylogenies. [PDF]

PLoS One, 2021
Serrasalmidae has high morphological and chromosomal diversity. Based on molecular hypotheses, the family is currently divided into two subfamilies, Colossomatinae and Serrasalminae, with Serrasalminae composed of two tribes: Myleini (comprising most of pacus species) and Serrasalmini (represented byMetynnis,Catoprion, and remaining piranha’s genera ...
Favarato RM, Ribeiro LB, Campos A, Porto JIR, Nakayama CM, Ota RP, Feldberg E.   +6 more
europepmc   +6 more sources