Results 11 to 20 of about 245 (138)

DNA metabarcoding assessment of Neotropical ichthyoplankton communities is marker-dependent. [PDF]

Ecol Evol, 2023
DNA metabarcoding has been applied as a rapid, cost‐effective, and accurate taxonomy tool, allowing the identification of multiple individuals simultaneously. The combined use of the three markers increased the genera detection rates by 25%–87.5%, allowing an increased taxonomic coverage and robust taxonomic identification of complex Neotropical ...
Teixeira DF, Hilário HO, Santos GB, Carvalho DC.   +3 more
europepmc   +2 more sources

Hatchery tanks induce intense reduction in microbiota diversity associated with gills and guts of two endemic species of the São Francisco River [PDF]

Frontiers in Microbiology, 2022
The São Francisco River (SFR), one of the main Brazilian rivers, has suffered cumulative anthropogenic impacts, leading to ever-decreasing fish stocks and environmental, economic, and social consequences.
Maria Rosilene Alves Damasceno, Camila Gracyelle de Carvalho Lemes, Lucélia Sandra Silva Barbosa Braga, Polyana Cristine Tizioto, Horácio Montenegro, Marcela Paduan, Josielda Gomes Pereira, Isabella Ferreira Cordeiro, Lorrana Cachuite Mendes Rocha, Sibele Aryadne da Silva, Angélica Bianchini Sanchez, Wanderson Geraldo Lima, Wanderson Geraldo Lima, Gabriel Menezes Yazbeck, Leandro Marcio Moreira, Leandro Marcio Moreira, Camila Carrião Machado Garcia, Camila Carrião Machado Garcia, Camila Carrião Machado Garcia   +18 more
doaj   +2 more sources

Deciphering the complex life cycle and partial migration of an ecological engineer and critical Neotropical fishery species, Prochilodus costatus. [PDF]

J Fish Biol
Abstract Understanding complex migration patterns, including drivers of partial migration and habitat use, is challenging but essential for conservation, as it determines a species' adaptative capacity in the face of environmental change and anthropogenic threats.
Peressin A, de Magalhães Lopes J, Neto FRA, Machado GJ, Alves CBM, Murgas LDS, Pompeu PS.   +6 more
europepmc   +2 more sources

A fractal pattern of hierarchical genetic population structure in mixed stocks across fish segregated by dams revealed by genomic resources for curimba Prochilodus lineatus. [PDF]

J Fish Biol
Abstract Genomic resources, new microsatellite markers and a novel observation of a fractal pattern in the genetic population structure are presented for curimba, Prochilodus lineatus, a freshwater migratory model species of South America. Our main goals were to investigate the presence of mixed fish stocks and the effects of damming‐induced ...
Yazbeck GM, Nascimento GAS, Carvalho LC, Graciano RCD, de Paula Santos R, Oliveira RS.   +5 more
europepmc   +2 more sources

Combined Effects of Dietary Soybean Lecithin With Vitamin C or Inositol on Growth, Gonadal Development, and Intestinal Microbiota in Longsnout Catfish. [PDF]

Aquac Nutr
To investigate the combined effects of soybean lecithin (SL) with vitamin C (VC) or inositol (INO) on growth, gonadal development, and intestinal microbiota, 2‐year‐old longsnout catfish (Leiocassis longirostris) were fed four isonitrogenous and isolipidic diets for 12 weeks, including a control diet, a 4% SL diet, a 4% SL + 0.5% VC (SC) diet, and a 4%
Xie MH, Zhou YL, Liu M, Li Z, Zhen P, Tian J, Gong Y, Zhang XJ, Han D, Zhou L, Gui JF, Wang ZW.   +11 more
europepmc   +2 more sources

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

J Morphol
In this study, we provide the first complete description of the skeleton ontogeny of an anostomid. The developmental sequence of 141 bony elements is described and illustrated. The main discoveries are numerous conical teeth on the premaxilla and dentary that are replaced with three or four large incisiform multicuspid teeth, that become unicuspid in ...
Boaretto MP, Venturieri M, Birindelli JLO.   +2 more
europepmc   +2 more sources

Hydrological Connectivity Enhances Fish Biodiversity in Amazonian Mining Ponds: Insights From eDNA and Traditional Sampling. [PDF]

Mol Ecol
ABSTRACT Artisanal and small‐scale gold mining (ASGM) expansion in the Madre de Dios region of the Peruvian Amazon has transformed primary forests into a novel wetland complex of thousands of abandoned mining ponds. Despite their ecological relevance, post‐mining recovery of these systems remains understudied, particularly regarding fish biodiversity ...
Timana-Mendoza C, Reyes-Calderón A, Venail P, Britzke R, Santa-Maria MC, Araújo-Flores JM, Silman M, Fernandez LE.   +7 more
europepmc   +2 more sources

Assessing the population structure of Plagioscion squamosissimus (Teleostei, Perciformes, Sciaenidae) from the São Francisco River, Bahia, Brazil, using body morphology and otolith shape signatures. [PDF]

J Fish Biol
Abstract The south American silver croaker, Plagioscion squamosissimus, holds significant importance for the artisanal fisheries in the sub‐middle and lower courses of the São Francisco River, located in northeastern Brazil. To investigate the population structure of this species along its longitudinal profile, a total of 150 individuals (50 fish per ...
Freitas FL, Pereira NS, Pinheiro PB, Schroeder R, Correia AT.   +4 more
europepmc   +2 more sources

Ossification of the cranium of Inpaichthys kerri (Characiformes: Acestrorhamphidae) with discussion of paedomorphic traits in the genus. [PDF]

J Anat
In this study, we present a detailed description of the cranial development of Inpaichthys kerri (Characiformes: Acestrorhamphidae), highlighting important topics such as pedomorphic characters and their relationship with ontogeny and phylogeny, as well as ossification sequences unique to the species. Abstract The study of development provides valuable
Santos YS, Marinho MMF.
europepmc   +2 more sources

B chromosome dynamics in Prochilodus costatus (Teleostei, Characiformes) and comparisons with supernumerary chromosome system in other Prochilodus species [PDF]

Comparative Cytogenetics, 2017
Within the genus Prochilodus Agassiz, 1829, five species are known to carry B chromosomes, i.e. chromosomes beyond the usual diploid number that have been traditionally considered as accessory for the genome.
Silvana Melo, Ricardo Utsunomia, Manolo Penitente, Patrícia Elda Sobrinho-Scudeler, Fábio Porto-Foresti, Claudio Oliveira, Fausto Foresti, Jorge Abdala Dergam   +7 more
doaj   +4 more sources