Results 31 to 40 of about 449,137 (207)
Ecological risk evaluation of sediment metals in a tropical Euthrophic Bay, Guanabara Bay, Southeast Atlantic [PDF]
Marine Pollution Bulletin, 2016 Surface sediments were collected from Guanabara Bay, at 14 stations distributed in five sectors, over three sampling campaigns. Analyses of metals, grain size fractions and total organic carbon analyses were performed. The geo-accumulation index and the enrichment factor were estimated to assess contamination status based on background values ...
Abreu, Ilene Matano +5 more
openaire +3 more sources
GUANABARA BAY: ENVIRONMENTAL EDUCATION THROUGH AN INTERDISCIPLINARY THEMATIC [PDF]
Periódico Tchê Química, 2010 This paper shows an interdisciplinary project that involved two scholar subjects: Chemistry and Regional Studies (subject of business administration course of Fundação Osório). The Guanabara Bay was the scene for observations and discussions about the origins, causes and possible solutions in terms of time scale for the environmental question.
De Souza, Paulo Sérgio Alves +1 more
openaire +1 more source
Multibiomarker Approach in Fish to Assess a Heavily Polluted Brazilian Estuary, Guanabara Bay
Environmental Monitoring and Assessment, 2022 Abstract Brazil’s Guanabara Bay (GB), located in Rio De Janeiro, is a deeply contaminated, eutrophic waterbody that has a reduced environment that challenges the understanding of the effects of pollutants on the biota. This paper presents an integrated strategy to evaluate the impact of contamination, utilizing a multibiomarker approach in the ...
Marina Moreira, Freire +3 more
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Journal of Fish Diseases, EarlyView.ABSTRACT Hyperostosis is a non‐pathological condition widely reported in marine teleosts, yet its developmental dynamics and underlying drivers remain poorly understood. This study investigates the ontogenetic progression and anatomical distribution of hyperostosis in Caranx hippos based on a growth series of 39 specimens collected along the Brazilian ...
Camila Vitória Gonçalves Ferreira +8 more
wiley +1 more source
Virioplankton dynamics are related to eutrophication levels in a tropical urbanized bay. [PDF]
PLoS ONE, 2017 Virioplankton are an important and abundant biological component of marine and freshwater ecosystems. Often overlooked, aquatic viruses play an important role in biogeochemical cycles on a global scale, infecting both autotrophic and heterotrophic ...
Anderson S Cabral +4 more
doaj +1 more source
Integrating multiple lines of evidence of sediment quality in a tropical bay (Guanabara Bay, Brazil)
Marine Pollution Bulletin, 2019 The present study evaluated the ecological risk of metal contamination in sediments of Guanabara Bay (GB) by combining multiple lines of evidence (LOEs). Chemical analysis and a set of whole-sediment toxicity assays were conducted with Tiburonella viscana, Kalliapseudes schubartii, Anomalocardia flexuosa, and Nitocra sp.
de Campos, Bruno Galvão +8 more
openaire +4 more sources
Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 9, September 2026.Abstract Tropical Southeast Asian estuaries remain underrepresented in global water quality archives, limiting regional comparisons and the development of predictive biogeochemical models for monsoon‐driven coastal systems. To address this observational gap, this paper presents a quality‐controlled, 10‐year (2015–2025) biogeochemical data set for the ...
Thi‐Minh‐Tam Le +7 more
wiley +1 more source
Memorias do Instituto Oswaldo Cruz, 1989 Digamacris, a new genus of the Dichroplini (Acrididae, Melanoplinae) is described for the species Pezotettix amoenus Stal, 1878 and Dichroplus fratemus Carl, 1916, both included at present in the genus Dichroplus.
Carlos S. Carbonell
doaj +1 more source
Bay Briefings - Freshwater Inflow [PDF]
, 2006 1 page; available for download at the link below.Galveston Bay is an estuary, a semi-enclosed coastal water body that has a free connection with the open sea. In an estuary, freshwater from rivers and streams mixes with sea water.
Galveston Bay Estuary Program
core +1 more source
Caracterização da Contaminação por Petróleo e seus Derivados na Baía de Guanabara: Aplicação de Técnicas Organogeoquímicas e Organopetrográficas [PDF]
Anuário do Instituto de Geociências, 2003 The Guanabara Bay is the second bigger bay of the Brazilian coast. The bay is oneof most beautiful of the world and shelters an ample and protected natural environment,preponderant factor for the development of the region.
João Graciano Mendonça Filho +3 more
doaj