Results 51 to 60 of about 676 (156)

Unraveling Temporal Fish Diversity in a Neotropical Hydropower Reservoir: Comparing eDNA Metabarcoding to Traditional Fishing Methods

Environmental DNA, Volume 8, Issue 2, March/April 2026.
Comparing eDNA metabarcoding and gillnet surveys in a Neotropical reservoir, this study finds that eDNA detects greater species richness yet reveals distinct assemblage structures. The results underscore the value of integrating both methods to achieve comprehensive biodiversity monitoring in hydropower‐impacted ecosystems.
Izabela Santos Mendes, Naiara Guimarães Sales, Allan D. McDevitt, Paulo Santos Pompeu, Francisco de Andrade Neto, Heron Oliveira Hilário, Daniel Cardoso Carvalho   +6 more
wiley   +1 more source

Moenkhausia Eigenmann

, 2007
[[Moenkhausia Eigenmann]] The genus Moenkhausia was erected by Eigenmann (1903) and is currently defined by the presence of premaxillary teeth in two parallel rows, five or more teeth in the inner premaxillary tooth row, a completely pored lateral line,
Paulo H. F. Lucinda, Luiz R. Malabarba, Ricardo C. Benine   +2 more
core   +1 more source

Taxonomic study of Moenkhausia cotinho Eigenmann, 1908 and Hemigrammus newboldi (Fernández-Yépez, 1949) with the description of two new species of Moenkhausia (Teleostei: Characiformes: Characidae)

, 2020
Mathubara, Kleber, Toledo-Piza, Mônica (2020): Taxonomic study of Moenkhausia cotinho Eigenmann, 1908 and Hemigrammus newboldi (Fernández-Yépez, 1949) with the description of two new species of Moenkhausia (Teleostei: Characiformes: Characidae).
Mathubara, Kleber, Toledo-Piza, Mônica
core   +1 more source

FIGURE 1 in Description of three new species of Moenkhausia (Teleostei, Characiformes, Characidae) with the definition of the Moenkhausia jamesi species complex

, 2015
FIGURE 1. Computed tomography images of two syntypes of Moenkhausia jamesi, showing details of the maxilla: (a) MCZ 20742, 55.7mm SL; (b) MCZ 20816, 53.1mm SL.Published as part of Petrolli, Marina G.
Benine, Ricardo C., Petrolli, Marina G.
core   +1 more source

Effects of oligotrophication on fish growth: Insights from a mesocosm experiment

Limnology and Oceanography, Volume 70, Issue S2, Page S392-S403, December 2025.
Abstract Human activities can frequently affect aquatic ecosystems in irreversible ways, with flow regulation and water quality being major concerns. Dams can promote the retention of sediments and nutrients, increase water transparency, and reduce primary productivity, all of which characterize the oligotrophication process.
Juliana Deo Dias, Nadson Ressye Simões, Claudia Costa Bonecker, Angelo Antonio Agostinho   +3 more
wiley   +1 more source

FIGURE 2. Moenkhausia venerei, MZUSP 119007 in Moenkhausia venerei (Characiformes: Characidae), a new species from the rio Araguaia, Central Brazil

, 2016
FIGURE 2. Moenkhausia venerei, MZUSP 119007, paratype, 32.7 mm SL: (a) right premaxilla (medial view); (b) right dentary (medial view); (c) right maxilla (medial view).Published as part of Petrolli, Marina G., Azevedo-Santos, Valter M.
Benine, Ricardo C., Azevedo-Santos, Valter M., Petrolli, Marina G.   +2 more
core   +1 more source

Diet and dietary overlap of three sympatric fish species in lakes of the upper Paraná River floodplain

Brazilian Archives of Biology and Technology, 1999
For a dietary study, specimens of Astyanax bimaculatus, Astyanax schubarti, and Moenkhausia intermedia were caught monthly with seines-nets in six lakes (Pau Veio, Porto Rico, Três Amigos, Mutum, Pontal, and Canal do Meio), on the floodplain of the Upper
Karla Danielle Gaspar da Luz, Edson Kiyoshi Okada   +1 more
doaj   +1 more source

FIGURE 6 in Description of three new species of Moenkhausia (Teleostei, Characiformes, Characidae) with the definition of the Moenkhausia jamesi species complex

, 2015
FIGURE 6. Moenkhausia sthenosthoma. (a) MCP 48789, holotype, 56.0 mm SL. (b) UFRO 311, 57.21 mm SL. (c)UFRO 13621, 50.31 mm SL.Published as part of Petrolli, Marina G. & Benine, Ricardo C., 2015, Description of three new species of Moenkhausia (Teleostei,
Benine, Ricardo C., Petrolli, Marina G.
core   +1 more source

A new species of Hyphessobrycon Durbin from northeastern Brazil: evidence from morphological data and DNA barcoding (Characiformes, Characidae)

ZooKeys, 2018
A new species of Hyphessobrycon is described for the upper Munim and Preguiças river basins, northeastern Brazil, supported by morphological and molecular species delimitation methods.
Erick Cristofore Guimarães, Pâmella Silva De Brito, Leonardo Manir Feitosa, Luís Fernando Carvalho-Costa, Felipe Polivanov Ottoni   +4 more
doaj   +3 more sources

The stream fish fauna from the rio Machado basin, Rondônia State, Brazil [PDF]

Check List, 2013
The rio Machado (also known as Ji-Paraná) is a tributary of the rio Madeira in the Amazon basin. Currently, the rio Madeira contains the greatest fish species richness of the world, with approximately 1,000 species.
Lilian Casatti, María Pérez-Mayorga, Fernando Carvalho, Gabriel Brejão, Igor da Costa   +4 more
doaj   +3 more sources