Results 71 to 80 of about 292 (171)

Assessing fish diversity in abandoned mining ponds in Madre de Dios, Peru, using environmental DNA

open access: yesEnvironmental DNA, Volume 6, Issue 1, January–February 2024.
We surveyed four lentic systems in Madre de Dios, Peru: two abandoned mining ponds created by ASGM and two unmined oxbow lakes as a reference to assess fish recolonization. We compared two alternative eDNA processing methods and contrasted our results with historic data from traditional biodiversity monitoring. Our results indicate that eDNA could be a
Camila Timana‐Mendoza   +4 more
wiley   +1 more source

Hemigrammus luelingi

open access: yes
Hemigrammus luelingi (Géry 1964) Distribution Eastern Ecuador, eastern Peru. Notes Galacatos et al. (2004).
Escobar-Camacho, Daniel   +4 more
openaire   +2 more sources

Food resource used by small-sized fish in macrophyte patches in ponds of the upper Paraná river floodplain = Uso do alimento por peixes de pequeno porte associados às macrófitas aquáticas em lagoas da planície de inundação do alto rio Paraná

open access: yesActa Scientiarum: Biological Sciences, 2009
This study analyzed the diet of seven small-sized fish species(Characidae) and assessed their use of food resources. The species were collected in 2001 from nine ponds with aquatic macrophytes in the Paraná river floodplain, Brazil. Astyanax altiparanae,
Valdirene Esgarbosa Loureiro Crippa   +2 more
doaj  

Hemigrammus bleheri

open access: yes, 2010
Autapomorphy of Hemigrammus bleheri: 1. Form of teeth of inner premaxillary tooth row (128): (0> 1) with cusps aligned in straight series and without anterior concavity. Paralleled in the Rhoadsiinae, in nodes 195, 245, and 280, and in Odontostoechus lethostigmus.
openaire   +2 more sources

Hemigrammus tocantinsi: a new species from the upper rio Tocantins basin, Central Brazil (Characiformes: Characidae)

open access: yesNeotropical Ichthyology
Hemigrammus tocantinsi is described from the upper rio Tocantins basin, Chapada dos Veadeiros, Goiás State, Central Brazil. The new species differs from its congeners by the presence of 15-17 branched anal-fin rays, longitudinal stripe relatively narrow ...
Fernando R Carvalho   +2 more
doaj   +1 more source

Hemigrammus collettii

open access: yes
Hemigrammus collettii (Steindachner 1882) Distribution Amazon, plus northern drainages.
Escobar-Camacho, Daniel   +4 more
openaire   +1 more source

Hemigrammus unilineatus

open access: yes, 2010
Published as part of Mirande, Juan Marcos, 2010, Phylogeny of the family Characidae (Teleostei: Characiformes): from characters to taxonomy, pp. 385-568 in Neotropical Ichthyology 8 (3) on page 510, DOI: 10.1590/S1679-62252010000300001, http://zenodo.org/record ...
openaire   +2 more sources

Burst-and-coast swimming is not always energetically beneficial in fish (Hemigrammus bleheri)

open access: yesBioinspiration & Biomimetics, 2020
Abstract Burst-and-coast swimming is an intermittent mode of locomotion used by various fish species. The intermittent gait has been associated with certain advantages such as stabilizing the visual field, improved sensing ability, and reduced energy expenditure.
Intesaaf Ashraf   +2 more
openaire   +3 more sources

Determinantes ambientais da ocorrência de espécies de peixes em riachos de cabeceira da bacia do rio Ivinhema, alto rio Paraná - DOI: 10.4025/actascibiolsci.v29i2.520

open access: yesActa Scientiarum: Biological Sciences, 2007
Com o objetivo de quantificar a importância de algumas características fisiográficas dos riachos sobre a ocorrência de quatro espécies de Characidae em riachos de cabeceira na bacia do rio Ivinhema, realizaram-se amostragens bimestrais em dez riachos com
Yzel Rondon Súarez   +4 more
doaj   +1 more source

Contribution of different mesohabitats to the maintenance of fish richness and diversity in the lower Preto River

open access: yesActa Scientiarum: Biological Sciences, 2015
The presence of different mesohabitats in freshwater systems can support higher local and regional fish richness. Thus, their suppression by dam-building represents a real threat to aquatic biodiversity. Our aims were: (1) to survey the fish fauna in two
Jaquelini Oliveira Zeni   +2 more
doaj   +1 more source

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