Results 61 to 70 of about 292 (171)
Clove oil is used as a fish anesthetic because it is a natural and inexpensive product with low toxicity risks. The goal of the present study was to determine the appropriate concentration of clove oil for small-sized tropical fish to be used in mark ...
I. M. Fernandes +4 more
doaj +1 more source
Published as part of Litz, Thomas O. & The, Stefan Koerber Introduction, 2014, Check List of the Freshwater Fishes of Uruguay (CLOFF-UY)., pp.
Litz, Thomas O. +1 more
openaire +2 more sources
Abstract A new species of characid with remarkable sexual characteristics is described from the upper Guayabero River drainage from the Orinoco basin in Colombia. The new species is included in the genus Monotocheirodon by sharing most of the previously proposed diagnostic features of this genus.
Tiago P. Carvalho +3 more
wiley +1 more source
This study aimed to evaluate the diet and condition factor of Hemigrammus levis and Hemigrammus coeruleus in a stream in the Tupé Sustainable Development Reserve, in the lower Negro River region, and contribute information on the biology of small species
M. Garrido, C. Lubich, K. C. Yamamoto
doaj +1 more source
A new Hyphessobrycon (Characiformes: Acestrorhamphidae) from the Central Amazon basin, Brazil [PDF]
A new species of Hyphessobrycon is described from the region of the lower rioTapajós basin, state ofPará, and tributaries of the northern bank of the Amazon River from the rio Itapiranga basin westward to the lower rio Negro basin, states of Amazonas and
Flávio C.T. Lima +3 more
doaj +1 more source
Previous studies predominantly investigated eye regression in cavefish evolution, but less is known about constructive evolution of non‐visual sensory systems in subterranean species. This review highlights our state of knowledge on mechanosensory lateral line expansions in Astyanax mexicanus, emphasizing anatomical features, synaptic plasticity, and ...
Roberto Rodríguez‐Morales
wiley +1 more source
Length–weight relations of fishes (Actinopterygii) from karst streams in the Bodoquena Plateau, western Brazil [PDF]
The presently reported study provides the length–weight relations (LWR) for 23 species from headwater streams of the Bodoquena Plateau, which is located on the southern border of the Brazilian Pantanal.
F. Severo-Neto +4 more
doaj +3 more sources
Abstract The expansion of oil palm plantations has led to land‐use change and deforestation in the tropics, which has affected biodiversity. Although the impacts of the crop on terrestrial biodiversity have been extensively reviewed, its effects on freshwater biodiversity remain relatively unexplored.
Oscar Alberto Rojas‐Castillo +10 more
wiley +1 more source
Incidental bycatch by ornamental fishing during the low-water season in the influence zone of Puerto Carreño, ColombianOrinoco Basin. Objective. The present study assesses the incidental fish catches in the fishing of ornamental species in terms ...
Juan Mondragón-Estupiñan +2 more
doaj
Entre los años 1993 y 2007 se determinó la evolución de la integridad ecológica de dos corrientes del piedemonte llanero del Meta, los caños Mateguadua y Caibe en proximidades a los municipios de Restrepo y Cumaral.
Guillermo Aramando Briceño Vanegas
doaj +1 more source

