Results 81 to 90 of about 1,225 (184)

Secuencias del gen mitocondrial para identificación de especies de animales

open access: yesRevista Colombiana de Ciencia Animal Recia, 2013
Marcadores moleculares basados en el ADN mitocondrial (ADNmt) tienen herencia materna y se pueden utilizar para evaluar relaciones filogenéticas y taxonómicas.
JOYCE AZAMBUJA DE OLIVEIRA,   +6 more
doaj   +1 more source

Bibliografía de los peces de agua dulce de la Argentina Suplemento 1996-2002. [PDF]

open access: yes, 2003
Between 1981 and 1995, we published five bibliographic lists (López et al., 1981, 1982,1987, 1989 y 1995) that included the publications referred to Argentine freshwater fishes and related general information published since Ringuelet et al. (1967).
Battistoni, Patria A.   +3 more
core  

Commercial formulation containing quinclorac and metsulfuron-methyl herbicides inhibit acetylcholinesterase and induce biochemical alterations in tissues of Leporinus obtusidens

open access: yesEcotoxicology and Environmental Safety, 2011
The effects of commercial formulation containing quinclorac and metsulfuron-methyl herbicides on acetylcholinesterase (AChE), antioxidant profile and metabolic parameters in teleost fish (Leporinus obtusidens) were studied. The fish were exposed during 90 days to commercial formulation containing quinclorac (204 μg L(-1)) and metsulfuron-methyl (5.8 μg
Alexandra, Pretto   +6 more
openaire   +2 more sources

Checklist of the Freshwater Fishes of Argentina (CLOFFAR) [PDF]

open access: yes, 2015
The purpose of this paper is to present an updated list of freshwater fishes found in Argentina based on the available literature. Since the last list was published in 2003, most systematical and distributional changes were presented on www.pecescriollos.
Koerber, Stefan, Mirande, Juan Marcos
core  

Diet of Black-crowned Night-herons (Nycticorax nycticorax) in a wetland of the Paraná River´s alluvial valley [PDF]

open access: yes, 2013
We analysed the feeding ecology of Nycticorax nycticorax based on fourty individuals captured on the Carabajal İsland (Santa Fe, 31º39?S, 60º42?W), determining the minimum sample, index of relative importance (IRI), size of prey, feeding efficiency ...
Beltzer, Adolfo Hector   +3 more
core   +1 more source

Pools and rapids as spawning and nursery areas for fish in a river stretch without floodplains

open access: yesNeotropical Ichthyology
This study aimed to evaluate the importance of two environments situated in the main channel of the Peixe River (a tributary of the upper Uruguay River) on fish reproduction and initial growth.
Sunshine de Ávila-Simas   +2 more
doaj   +1 more source

Monitoring fish communities through environmental DNA metabarcoding in the fish pass system of the second largest hydropower plant in the world. [PDF]

open access: yesSci Rep, 2021
Dal Pont G   +10 more
europepmc   +1 more source

Análise citogenética de Leporinus cf. obtusidens e Leporellus vittatus (Characiformes, Anostomidae) da bacia do rio São Francisco

open access: yesSemina: Ciências Biológicas e da Saúde, 2018
Anostomidae é uma família altamente especiosa entre os Characiformes, compreendendo 156 espécies válidas, as quais estão distribuídas na região Neotropical. Estudos citogenéticos com anostomídeos revelam que sua estrutura cariotípica é altamente conservada, com variações quanto a presença de cromossomos sexuais.
Thais Aparecida Dulz   +7 more
openaire   +1 more source

Moving beyond classical markers of water quality: detection of enteric viruses and genotoxicity in water of the Sinos River

open access: yesBrazilian Journal of Biology
It is well recognized that the classical biological and chemical markers of environmental pollution do not necessarily indicate the presence or absence of emerging threats to public health, such as waterborne viruses and genotoxicants.
B Bergamaschi   +8 more
doaj   +1 more source

Home - About - Disclaimer - Privacy