Results 171 to 180 of about 5,604 (188)

Desempenho de adubos verdes e o efeito no feijão-comum cultivado em sucessão num agroecossistema sob bases ecológicas. [PDF]

open access: yes, 2011
CARNEIRO, L. F.   +4 more
core  

Risk of Collapse in Water Quality in the Guandu River (Rio de Janeiro, Brazil)

Microbial Ecology, 2021
The Guandu River, one of the main rivers in the state of Rio de Janeiro, provides water for more than nine million people in the metropolitan region. However, the Guandu has suffered from massive domestic and industrial pollution for more than two decades, leading to high levels of dissolved total phosphorus, cyanobacteria, and enteric bacteria ...
Gizele Garcia   +2 more
exaly   +3 more sources

Induced alkoxyresorufin-O-dealkylases in tilapias (Oreochromis niloticus) from Guandu river, Rio de Janeiro, Brazil

Chemosphere, 2004
The activity of fish monooxygenases has been extensively used as a monitoring tool to detect contamination of water bodies by cytochrome P450-inducing agents. In this study we evaluated the activities of ethoxy- (EROD), methoxy- (MROD) and pentoxy- (PROD) resorufin-O-dealkylases in the liver of Nile tilapias (Oreochromis niloticus) collected at the ...
Thiago Estevam Parente   +2 more
exaly   +3 more sources

Induced cytochrome P450 1A activity in cichlid fishes from Guandu River and Jacarepaguá Lake, Rio de Janeiro, Brazil

Environmental Pollution, 2008
The induction of cytochrome P4501A-mediated activity (e.g. ethoxyresorufin-O-deethylation, EROD) has been used as a biomarker for monitoring fish exposure to AhR-receptor ligands such as polycyclic aromatic hydrocarbons (PAH), polychlorinated biphenyls (PCB) and polychlorinated dibenzo-dioxins/furans (PCDD/Fs).
Thiago Estevam Parente   +2 more
exaly   +3 more sources

Transport and availability of heavy metals in the paraiba do sul-guandu river system, Rio de Janeiro state, Brazil

Science of the Total Environment, 1988
Abstract Iron, Mn, Zn, Cu, Cr, Pb, Ni and Cd, the eight most important metals released into the Paraiba do Sul-Guandu River (PSR-GR) system, were determined in water and suspended particles in order to evaluate their transport and availability to the biota.
W C Pfeiffer, M Fiszman
exaly   +2 more sources

RESTAURAÇÃO FLORESTAL E SUSTENTABILIDADE HÍDRICA: DINÂMICA DA COBERTURA FLORESTAL DA BACIA HIDROGRÁFICA DO RIO GUANDU-ES

Anais do Terceiro Sustentare e Sexto Wipis, 2022
Lucas José Mendes   +3 more
exaly   +2 more sources

Use of artificial substrates for biological monitoring in the Guandu and Paraiba do Sul Rivers, Rio de Janeiro State, Brazil

Verhandlungen Der Internationalen Vereinigung Fur Theoretische Und Angewandte Limnologie International Association of Theoretical and Applied Limnology, 1998
Paulo Roberto Pereira de Araujo   +2 more
exaly   +2 more sources

Trichomycterus giganteus (Siluriformes: Loricarioidea: Trichomycteridae): a new catfish from the Rio Guandu basin, southeastern Brazil

Zootaxa, 2004
Trichomycterus giganteus, new species, is described from the Rio Guandu basin, Serra do Mendanha, Rio de Janeiro city. Although being the biggest among species from southeastern Brazil and endemic to an older metropolitan area, it has gone unknown until the present, illustrating the poor knowledge of the taxonomy of this genus. It is distinguished from
Lima, Sergio M. Q.   +1 more
openaire   +2 more sources

Length-weight relationships of 20 fish species in the Guandu River, Rio de Janeiro State, Southeastern Brazil

Journal of Applied Ichthyology, 2013
Summary The present work reports the length–weight relationships (LWR) for 20 fish species from the Guandu River basin, Southeastern, Brazil, a lotic system that supplies most of the water for Rio de Janeiro Municipality and nearby cities. Length–weight relationships for nine of these species were unknown to Fishbase, and new maximum lengths are ...
M. R. da Costa, T. Moreti, F. G. Araújo
openaire   +1 more source

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