Results 91 to 100 of about 3,112 (202)

FIGURE 73. Brycon amazonicus, MZUSP 74668, 66.5 in A revision of the cis-andean species of the genus Brycon Müller & Troschel (Characiformes: Characidae)

open access: yes, 2017
FIGURE 73. Brycon amazonicus, MZUSP 74668, 66.5 mm SL: Brazil, Amazonas, rio Solimões.Published as part of Lima, Flávio C. T., 2017, A revision of the cis-andean species of the genus Brycon Müller & Troschel (Characiformes: Characidae), pp.
Lima, Flávio C. T.
core   +2 more sources

Preliminary observations on the effect of sudden changes of temperature on survival of young Matrinxã (Brycon cephalus) under laboratory conditions Observações preliminares sobre o efeito de mudanças bruscas de temperatura na sobrevivência de juvenis de Matrinxã (Brycon cephalus) em condições de laboratório

open access: yesActa Amazonica, 2003
Matrinxã is a very promising amazonian fish for fish culture in Brazil. This study is aimed at determining the approximate tolerated temperature range in this species.
Sérgio Fonsêca Guimarães   +1 more
doaj   +1 more source

Tails of Biodiversity: Vertebrate Community Assessment in a Neotropical River Basin via eDNA Metabarcoding

open access: yesEnvironmental DNA, Volume 8, Issue 1, January–February 2026.
This study used environmental DNA (eDNA) metabarcoding to assess vertebrate biodiversity in headwater streams of the Rio Santo Antônio basin, southeastern Brazil, a tributary of the Rio Doce. A total of 119 vertebrate OTUs were identified, with oxidation–reduction potential emerging as the strongest environmental predictor of species richness.
Larissa Moreira‐Silva   +8 more
wiley   +1 more source

Brycon orbignyanus

open access: yes
RESULTS Anal fin and hook morphology. The anal fins can be divided into cranial, medial and caudal regions and are 6.4 ± 3.1 cm long and possess 25 ± 3 rays (Figs. 1A, B, D). A first soft ray of 0.73 ± 0.4 cm in height develops in the cranial region, while the second ray that is the first hard ray is 1.5 ± 0.3 cm in height. The remaining rays possess a
Bianchini, Bárbara Correa   +8 more
openaire   +1 more source

Densidade de estocagem de matrinxã (Brycon amazonicus) na recria em tanque-rede Stocking density of matrinxã (Brycon amazonicus) during second growth phase in cages

open access: yesPesquisa Agropecuária Brasileira, 2005
O objetivo deste trabalho foi determinar a densidade de estocagem mais adequada na fase de recria de matrinxã (Brycon amazonicus) em tanque-rede. Os peixes foram distribuídos em 12 tanques-rede de 1 m³, nas densidades de 200, 300, 400 e 500 peixes m-3 ...
Franmir Rodrigues Brandão   +4 more
doaj   +1 more source

Anthropogenic Barriers Limit Fish Access to Essential Habitats in the Amazon in the Face of Climate Change

open access: yesGlobal Change Biology, Volume 32, Issue 1, January 2026.
Rivers across the Amazon Basin are increasingly threatened by climate change and dam construction, which restrict fish movements. We combined climate projections with river‐network connectivity analyses to identify where suitable habitats for frugivorous and socioeconomically important fish are likely to persist and where access may be lost due to ...
Kátia Yasuko Yofukuji   +11 more
wiley   +1 more source

Genetic diversity and population structure of Brycon nattereri (Characiformes: Bryconidae): a Neotropical fish under threat of extinction

open access: yesNeotropical Ichthyology, 2019
Brycon nattereri is an endangered Neotropical fish reported along conserved stretches of the upper Paraná, Tocantins and São Francisco rivers. Populations of this species have been very rare in some Paraná River sub basins.
Bruno A. Galindo   +8 more
doaj   +1 more source

Brycon Muller & Troschel

open access: yes, 2017
Published as part of Lima, Flávio C. T., 2017, A revision of the cis-andean species of the genus Brycon Müller & Troschel (Characiformes: Characidae), pp.
openaire   +2 more sources

Brycon meeki - Sábalo

open access: yes, 2017
Brycon meeki especie de importancia en la pescaFaunaValle del CaucaCuenca del río CalimaAgua dulceSábaloBrycon ...
Sánchez Garcés, Gian Carlo
core  

Respostas metabólicas do matrinxã submetido a banhos anestésicos de eugenol = Metabolic responses of matrinxã to eugenol in anesthetic baths

open access: yesActa Scientiarum: Biological Sciences, 2007
O matrinxã (Brycon amazonicus) é uma espécie de interesse comercial. Porém, este peixe movimenta-se em excesso durante práticas de manejo, podendo sofrer ferimentos e perdas de escamas que, muitas vezes, resultam em taxas elevadas de mortalidade.
Gilberto Moraes   +2 more
doaj  

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