Results 51 to 60 of about 1,303,963 (173)

The Genus Hyalyris Boisduval, 1870 (Lepidoptera: Nymphalidae) in the Brazilian Atlantic Forest: Systematics, Taxonomy and Conservation

Austral Entomology, Volume 65, Issue 2, May 2026.
ABSTRACT The neotropical butterfly tribe Ithomiini (Danainae) comprises about 400 species distributed from Mexico to Northern Argentina, 58 of which occur in the Brazilian Atlantic Forest. Among these are two species assigned to the genus Hyalyris Boisduval, 1870: Hyalyris fiammetta (Hewitson, 1852) and Hyalyris leptalina (C. Felder & R. Felder, 1865).
André Victor Lucci Freitas, Eduardo Proença Barbosa, Nick Vyacheslavovich Grishin, Ricardo Russo Siewert, Keith Richard Willmott, Gerardo Lamas, Joana Isabel Meier, Augusto Henrique Batista Rosa   +7 more
wiley   +1 more source

Estudo da variabilidade de turbidez no trecho superior no Rio Guandu - Rio de Janeiro UFRJ [PDF]

, 2011
O Rio Guandu,principal corpo d’água da Região Metropolitana do Rio de Janeiro, sofre com constantes alterações antrópicas que causam elevados distúrbios na turbidez das águas e altos custos para o tratamento de forma que possibilite o ...
Kim, Monique
core  

O plano diretor de abastecimento de água da Região Metropolitana do Rio de Janeiro [PDF]

Revista DAE, 1991
A área da Região Metropolitana do Rio de Janeiro compreende um total de 14 municípios e é atendida atualmente por diversos sistemas, totalizando uma vazão de 46m3/s. Os municípios do Rio de Janeiro e da Baixada Fluminense consomem 40m3/s, sendo o Sistema
Jorge Luiz Paes Rios
doaj  

Ectoparasites as numerical dominant species in parasite community of Trachelyopterus striatulus (Siluriformes: Auchenipteridae) from Guandu River, southeastern Brazil Ectoparasitos como espécies numericamente dominantes na comunidade parasitária de Trachelyopterus striatulus (Siluriformes: Auchenipteridae) do rio Guandu, Sudeste do Brasil

Brazilian Journal of Biology, 2011
Sixty specimens of singing catfish Trachelyopterus striatulus (Steindachner, 1877) (Siluriformes: Auchenipteridae) collected from Guandu River (22º 48' 32" S and 43º 37' 35" W), in the state of Rio de Janeiro, Brazil from October 2006 to March 2009, were
RLB. Mesquita, RK. Azevedo, VD. Abdallah, JL. Luque   +3 more
doaj   +1 more source

OCORRÊNCIA DE ATIVIDADE ESTROGÊNICA E ECOTOXICIDADE EM ÁGUAS SUPERFICIAIS DO RIO GUANDU / RIO DE JANEIRO

Revista Internacional de Ciências
Desreguladores endócrinos estrogênicos são compostos capazes de interferir no sistema hormonal, causando efeitos adversos à saúde de organismos e ao ambiente. Entre os métodos disponíveis para sua avaliação, destaca-se o ensaio in vitro Yeast Estrogen Screen (YES), amplamente utilizado para detectar atividade estrogênica em matrizes ambientais.
Giselle Gomes, Allan Dos Santos Argolo, Louise Da Cruz Felix, Daniele Maia Bila   +3 more
openaire   +1 more source

Multi‐Walled Carbon Nanotube‐Modified Carbon Paste Electrode for Fipronil Detection in Environmental Samples

Electroanalysis, Volume 37, Issue 7, July 2025.
A nanostructured carbon paste sensor modified with 20% multi‐walled carbon nanotubes (MWCNTs) was developed for the detection of Fipronil. The sensor showed enhanced electrochemical performance, with a limit of detection of 0.377 µmol L‐1. It demonstrated good stability, selectivity, and high recovery in water samples, highlighting the potential of ...
Mariane Ribas Lourenço, Guilherme Sales da Rocha, Daniel Ananias Reis de Campos, Helen Conceição Ferraz, João Victor Nicolini   +4 more
wiley   +1 more source

“Captains of the Sands”: Urban Illicit Ecologies and Sandscapes in Rio de Janeiro

Antipode, Volume 56, Issue 5, Page 1775-1801, September 2024.
Abstract Urban Political Ecology (UPE) has explored human–soil relations, emphasising the political dimensions of environmental degradation in and through urbanisation. However, UPE lacks critical reflection on governance collusions with illicit actors.
Frank I. Müller
wiley   +1 more source

Using spatiotemporal ratio analyses to quantitatively estimate water quality recovery of the Rio Doce

Integrated Environmental Assessment and Management, Volume 20, Issue 1, Page 74-86, January 2024.
Abstract The Fundão Dam breached on 5 November 2015 (the “Event”), resulting in the release of tailings, water, scoured sediment and/or soil, and other debris to downstream watercourses. Statistical analyses using historical and recent water quality measurements were conducted to assess the extent to which water quality in the Rio Doce was recovering ...
Michael Wild, Shahrokh Rouhani, Jacob Oehrig, Pedro H. G. Alves, William Odle, Diogo F. A. Gaspar   +5 more
wiley   +1 more source

Evaluation of the cytotoxic and genotoxic potential of waters of the Paraíba do Sul River Basin - RJ through the Allium cepa test system

Revista Ambiente & Água, 2020
The public water supply of the Rio de Janeiro metropolitan region is highly dependent on transposition from the Paraíba do Sul River: 70% of the water is diverted to the Piraí River and then passes through a series of other rivers and reservoirs, finally
Emanoelly Barbosa Sacramento, Caroline de Almeida Azevedo, Saulo Tavares Abreu, Helcio Resende Borba, Viviane Moreira de Lim   +4 more
doaj   +1 more source

Impactos da crise hídrica 2014-2016 sobre os usuários dos rios Paraíba do Sul e Guandu [PDF]

Revista de Gestão de Água da América Latina, 2019
The Paraiba do Sul River Basin - shared by the states of Sao Paulo, Rio de Janeiro and Minas Gerais - experienced an unprecedented water crisis between 2014 and 2016, triggered by the worst drought ever recorded since 1931. This basin is strategic at national level for the intense activities but also for supplying around 90% of the metropolis of Rio de
Nathalia Vasconcelos, Rosa Johnsson, Natalia Ribeiro   +2 more
openaire   +1 more source