Results 71 to 80 of about 519 (177)

Subtidal benthic marine litter off the coast of Rio de Janeiro, Brazil

Ocean and Coastal Research
Several studies have reported on the presence of litter on beaches and in the oceans, but this represents the smallest part of the litter that ends up in the sea.
Fábio Vieira de Araújo, Eduardo da Silva Videla, Bruno Pereira Masi, André Luiz Carvalho da Silva   +3 more
doaj   +1 more source

Reproduction and structure of the population of the Chaetognath Parasagitta friderici in Guanabara Bay (Brazil) based on short term sampling

Anais da Academia Brasileira de Ciências, 2012
The aim of this study was to describe the total density, densities of developmental stages and the reproduction period of Parasagitta friderici. Weekly samples were collected at one station in the channel of Guanabara Bay, Rio de Janeiro, during one year.
Fabiana Mendes, Gisela M. de Figueiredo, Jean L. Valentin   +2 more
doaj   +1 more source

Water Quality in the Guanabara bay Hydrographic Basin: Is there a Solution?

Revista de Gestão Social e Ambiental
Objective: To analyze the water quality of the rivers that comprise the Guanabara Bay Hydrographic Region (RH-V), assessing their environmental degradation in accordance with CONAMA Resolution No. 357/2005.   Theoretical Framework: The study is grounded in on the concepts of water quality monitoring, anthropogenic impacts, and water resources ...
Eluara Nunes Rodrigues, Flavia de Almeida Vieira, Lilian Bechara Elabras Veiga   +2 more
openaire   +1 more source

Reproductive biology of Cetengraulis edentulus (Cuvier, 1829), the major fishery resource in Guanabara Bay, Brazil

Neotropical Ichthyology
Cetengraulis edentulus is a broadely distributed engraulid in Southwest Atlantic, currently accounting for the main fish species commercially exploited at Guanabara Bay, Brazil. This study aimed to extend the knowledge on reproduction of C.
Ana Clara Sampaio Franco, Daniel Shimada Brotto, David Man Wai Zee, Luciano Neves dos Santos   +3 more
doaj   +1 more source

Análise dos Foraminíferos Bentônicos de Dois Testemunhos na Região Nordeste da Baía de Guanabara. [PDF]

Anuário do Instituto de Geociências, 2007
Guanabara bay receives a large amount of industrial and domestic sewage, which contributes for its environmental degradation. For monitoring those environmental changes, two cores from the northeastern area of the bay were analized.They were subsampled ...
Raquel Batista Medeiros da Fonseca, Kelly Cristine Costa de Abreu, Claudia Gutterres Vilela, José Antônio Baptista Neto   +3 more
doaj  

Influence of oxygenation and quality of sediment on the survival of Scolelepis chilensis (Spionidae: Polychaeta) in Guanabara Bay, Rio de Janeiro

Biotemas, 2013
This study aimed to evaluate the tolerance of the polychaete Scolelepis chilensis to variation in oxygenation and sediment to obtain data for environmental impact studies. Individuals were collected at Flamengo Beach, Rio de Janeiro.
Evelyn Machado Silva, Marcelo Borges Rocha, Nury Eunice Sánchez Riascos   +2 more
doaj  

Zoneamento Ambiental da Baía de Guanabara [PDF]

Anuário do Instituto de Geociências, 2003
The paper presents a proposition for the Guanabara Bay Environmental Zoning , which aims to contribute for its sustainable management. The methodology was developed in three analytical scales: a strategical conception of human settlement, a logistic ...
Claudio Antônio G. Egler, Carla Bernadete Madureira Cruz, Paulo Frederico Hald Madsen, Samir de Menezes Costa, Evânia Alves da Silva   +4 more
doaj  

Benthic Foraminiferal Response to Variations in Temperature, Salinity, Dissolved Oxygen and Organic Carbon, in the Guanabara Bay, Rio de Janeiro, Brazil [PDF]

Anuário do Instituto de Geociências, 2003
Recent benthic foraminiferal distribution patterns in Guanabara Bay are investigated in relation to temperature, salinity, dissolved oxygen and organic carbon content.
Patrícia P. B. Eichler, Beatriz B. Eichler, Luiz B. de Miranda, Evelyn da R. M. Pereira, Patrícia B. P. Kfouri, Felipe M. Pimenta, Alessandro L. Bérgamo, Claudia G. Vilela   +7 more
doaj  

Avaliação da Poluição Antrópica Usando Padrão de Distribuição deEspécies de Foraminíferos Provenientes de Testemunhos da Baía de Guanabara, RJ. [PDF]

Anuário do Instituto de Geociências, 2007
This work presents a study of benthic foraminifera recovered from three cores collected near the Paquetá island, in the Guanabara bay, Rio de Janeiro, southeastern Brazil. The cores have different sizes and were subsampled in centimetric intervals.
Brígida Orioli Figueira, Claudia Gutterres Vilela, José Antônio Baptista Neto   +2 more
doaj  

INNOVATION AND ENVIRONMENTAL MONITORING: TECHNOLOGICAL SOLUTIONS FOR THE SUSTAINABILITY OF GUANABARA BAY

Artefactum - revista de estudos interdisciplinares
Guanabara Bay faces high levels of environmental degradation due to untreated sewage dumping, industrial pollution, and heavy metal contamination, compromising biodiversity and water quality. This study proposes the Integrated Environmental Monitoring System of Guanabara Bay (SIMABG), which uses smart sensors, artificial intelligence, drones, and ...
Claudio José Guedes Aranha, Claudia Denise da Silveira Tondolo, Claudete Messagi Moisés de Almeida, Frederico da Costa Martins, Ligia Baptista Kobal, Marciana Carvalho Pereira de Souza   +5 more
openaire   +1 more source