Results 41 to 50 of about 740 (168)

Estudo da cobrança como instrumento de gestão social de bacias hidrográficas: uma aplicação à bacia hidrográfica do Rio Cubatão do Sul [PDF]

, 2006
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Ambiental.A Lei Federal 9.433/97 instituiu no Brasil a Política Nacional de Recursos Hídricos e criou o Sistema Nacional de ...
Sousa, Maria Raquel Catalano de
core  

Diet of Lontra longicaudis (Carnivora: Mustelidae) in a pool system in Atlantic Forest of Minas Gerais State, southeastern Brazil=Dieta de Lontra longicaudis (Carnivora: Mustelidae) em um sistema de poções na Floresta Atlântica do Estado de Minas Gerais, sudeste do Brasil [PDF]

Acta Scientiarum: Biological Sciences, 2012
The present study aimed to investigate the feeding habits of Lontra longicaudis in a pool system within the Private Reserve of Natural Patrimony (RPPN) Usina Maurício, located in Paraíba do Sul river basin, Atlantic Forest of southeastern Minas Gerais ...
Fernando Marques Quintela, Emmanuel de Melo Nascimento, Fabiano Aguiar da Silva   +2 more
doaj   +1 more source

Characterisation of Drought and Wet Events in the Paraíba do Sul River Basin—Brazil

International Journal of Climatology, Volume 46, Issue 9, July 2026.
Trend analysis identified statistically significant reductions in precipitation (at the 5% significance level) at specific pluviometric stations in São Paulo and Rio de Janeiro, while other areas, mainly in Minas Gerais, experienced significant increases in annual and seasonal rainfall, particularly during summer and spring. These significant trends at
Gildo Rafael de Almeida Santana, Eliane Barbosa Santos, Maria Gertrudes Alvarez Justi da Silva, Vicente de Paulo Santos de Oliveira, Jader Lugon Junior   +4 more
wiley   +1 more source

Description of the first species of Metharpinia (Crustacea: Amphipoda: Phoxocephalidae) from Brazil

Zoologia (Curitiba), 2015
A new amphipod species of Metharpinia Schellenberg, 1931 is described from Campos Basin, southeastern Brazilian coast. The material was collected with van Veen grab from unconsolidated substratum, off the mouth of the Paraíba do Sul River.
Luiz F. Andrade, Rodrigo Johnsson, André R. Senna   +2 more
doaj   +1 more source

Habitat Suitability for a Unique, Fully Marine American Manatee (Trichechus manatus) Population Primarily Depends on Presence of Submarine Freshwater Springs

Marine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT The American manatee (Trichechus manatus) requires freshwater mainly from rivers and springs to maintain osmoregulatory balance in saline environments. However, in Brazil's semi‐arid Potiguar Basin, manatees now rely solely on submarine freshwater springs because hypersaline estuaries have become unsuitable sources of freshwater.
A. C. O. Meirelles, I. C. Normande, M. D. O. Alves, K. F. Choi, V. L. Carvalho, J. C. G. Borges, L. von Fersen, Andrew W. Trites   +7 more
wiley   +1 more source

Interaction between GIS and hydrologic model: A preliminary approach using ArcHydro Framework Data Model

Revista Ambiente & Água, 2013
In different regions of Brazil, population growth and economic development can degrade water quality, compromising watershed health and human supply. Because of its ability to combine spatial and temporal data in the same environment and to create water ...
Silvio Jorge C. Simões
doaj   +1 more source

Spatiotemporal Evolution of Hydroclimatic Variables in the Brazilian Semi‐Arid Region Through the Aridity Index and Susceptibility to Desertification

International Journal of Climatology, Volume 46, Issue 8, 30 June 2026.
Over the past 60 years, noticeable changes have been observed in the main hydroclimatological variables, driven by both natural and anthropogenic factors. In the context of climate change, such behaviour may adversely affect the state's economic activities, as well as increase the recurrence of extreme events in the region.
Ronaldo Guilherme Santos Lima, Izaias Rodrigues de Souza Neto, André Quintão de Almeida, Vania Elisabete Schneider, Ludmilson Abritta Mendes   +4 more
wiley   +1 more source

Branched GDGTs as Proxies in Surface Sediments From the South-Eastern Brazilian Continental Margin

Frontiers in Earth Science, 2019
Branched glycerol dialkyl glycerol tetraethers (brGDGTs) are membrane lipids produced by bacteria usually ascribed to soil and peat deposits. The presence of brGDGTs in marine sediments can thus be used to track terrigenous organic matter inputs to the ...
Milena Ceccopieri, Renato S. Carreira, Angela L. R. Wagener, Jens Hefter, Gesine Mollenhauer   +4 more
doaj   +1 more source

Genetic Structure and Conservation Strategies for the Endangered Catfish Steindachneridion melanodermatum (Siluriformes, Pimelodidae) in the Iguaçu River, Brazil

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 6, June 2026.
ABSTRACT The endemic catfish Steindachneridion melanodermatum from the Iguaçu River basin, southern Brazil, is one of the most threatened pimelodid species. Comprehension of its genetic structure is imperative to the formulation of long‐term efficacious conservation strategies. A genetic analysis was conducted on three populations from the lower Iguaçu
Jesús Hernández‐Gómez, Caio Felipe da Silva, Carolina de Oliveira Magalhães, Bruno Henrique Mattiello, Juliano Tupan Coragem, Ricardo Utsunomia, Fabio Porto‐Foresti, Fernanda Dotti do Prado, Roberto Ferreira Artoni   +8 more
wiley   +1 more source

Trichomycterus macrophthalmus (Teleostei: Siluriformes: Trichomycteridae), a new species of catfish from the Paraíba do Sul river basin, southeastern Brazil

, 2012
Trichomycterus macrophthalmus, new species is described from the upper Paraíba do Sul river basin, southeastern Brazil. It differs from all species of Trichomycterus from southeastern Brazil by possessing nine pleural ribs.
Barbosa,Maria, Costa,Wilson, Costa, Wilson, Barbosa, Maria   +3 more
core   +1 more source