Results 61 to 70 of about 12,688 (202)

Taxonomic revision of Galeocharax (Characiformes: Characidae: Characinae)

open access: yesNeotropical Ichthyology, 2017
The taxonomy of Galeocharax, a genus of freshwater fishes distributed in most South American cis-Andean river systems, except the rio Negro, rio São Francisco and rio Xingu basins and the eastern drainages of Brazil, is herein revised.
Victor Giovannetti   +2 more
doaj   +1 more source

Resistance to thiophanate‐methyl and azoxystrobin in Colletotrichum species from Brazilian grapes

open access: yesPest Management Science, EarlyView.
First report of resistance to both quinone outside inhibitor (QoI; azoxystrobin) and methyl benzimidazole carbamate (MBC; thiophanate‐methyl) fungicides in Colletotrichum isolates associated with grapevine in Brazil. Abstract BACKGROUND Grape ripe rot (GRR) caused by Colletotrichum species can cause yield loss in vineyards in Southern and Northeast ...
Daniel Ricardo Maass Steiner   +5 more
wiley   +1 more source

When Norms Meet Markets: Environmental Governance and Digital Fast‐Fashion Platforms in Brazil

open access: yesSustainable Development, EarlyView.
ABSTRACT Environmental governance increasingly relies on consumer‐based mechanisms that assume that sustainability awareness translates into purchasing behaviour. This article investigates whether such mechanisms remain effective when consumption is organised through transnational digital platforms in contexts characterised by socioeconomic inequality.
Giovana Santa Rosa Lana   +1 more
wiley   +1 more source

Assessing the Health Impacts of Contaminants on Green Turtles (Chelonia mydas) Along the Southern Coast of Brazil

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Chemical pollutants pose a significant threat to marine ecosystems. Among these contaminants are trace elements and polycyclic aromatic hydrocarbons (PAH). Green turtles can be employed to evaluate the oceans' health due to their coastal habitats and exposure to multiple threats.
Camila Roberta da Silva Ribeiro   +6 more
wiley   +1 more source

Perfil Ictiofaunístico de duas Lagoas no Rio Paraná, Região do Parque Nacional de Ilha Grande - PR. = Ictiofaunistic profile of two Rio Paraná lagoons, Region of Ilha Grande National Park - PR.

open access: yesAgro@mbiente On-line, 2008
O Rio Paraná é o décimo maior do mundo em descarga e nele se encontra a região do Parque Nacional de Ilha Grande, que é formada por um conjunto de ilhas, lagoas e várzeas periodicamente alagadas, sendo estas de extrema importância para os peixes ...
Wladimir M. Domingues   +2 more
doaj  

Two new species of Rineloricaria (Siluriformes: Loricariidae) from the rio Iguaçu basin, southern Brazil

open access: yesNeotropical Ichthyology
Rineloricaria langei and R. maacki, new species, are described from upper and middle regions of the rio Iguaçu basin, a left bank tributary of the rio Paraná basin, southern Brazil. Rineloricaria langei has narrow body and is similar to R.
Leonardo F. S. Ingenito   +3 more
doaj   +1 more source

Os processos geomórficos e o estado de equilíbrio fluvial no alto Rio Paraná, centro sul do Brasil

open access: yesGeosul, 2009
  O presente artigo avalia os atuais processos hidrodinâmicos, sedimentológicos e geomorfológicos dos canais do alto Rio Paraná e seus relacionamentos com sua evolução quaternária. Os dados relativos à história geomórfica quaternária e o regime fluvial 
Paulo Cesar Rocha
doaj   +1 more source

Antimicrobial Residues in a Key Cerrado River: Distribution, Persistence, and Effects on Zebrafish Embryo‐Larval Development

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT The current study aimed to quantify the antimicrobials amoxicillin (AMX), cefazolin (CFZ), chloramphenicol (CHL), metronidazole (MTZ), and sulfamethoxazole (SX) in effluents and surface water of an important Cerrado river, calculate their half‐lives, and analyze their ecotoxicity following single and combined exposures.
Náthala Maria Simão   +12 more
wiley   +1 more source

Ecotoxicological Assessment of Mercury in Fish From a Gold‐Mining‐Impacted Amazonian River: Biomonitoring and Human Health Risk

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT The Peixoto de Azevedo River, located in northern Mato Grosso, southern Brazilian Amazon, has a long history of artisanal and small‐scale gold mining (ASGM). This study evaluated total mercury (THg) concentrations in fish tissues to assess biomagnification and potential risks.
Augusto Cesar da Costa Castilho   +5 more
wiley   +1 more source

GEOPROCESSAMENTO PARA CARTOGRAFIA DO ALOGRUPO ALTO RIO PARANÁ (SP, PR E MS)

open access: yesRevista Brasileira de Cartografia, 2009
Técnicas de geoprocessamento foram utilizadas para mapear a distribuição de depósitos quaternários que compõem o Alogrupo Alto Rio Paraná, na Bacia Hidrográfica do Alto Rio Paraná (SP, PR e MS).
Alethéa Ernandes Martins Sallun   +2 more
doaj  

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