Oceanographic and sedimentological influences on carbonate geochemistry and mineralogy in hypersaline coastal lagoons, Rio de Janeiro state, Brazil

2019 ◽  
Vol 64 (6) ◽  
pp. 2605-2620 ◽  
Author(s):  
Gabriela S. Nascimento ◽  
Timothy I. Eglinton ◽  
Negar Haghipour ◽  
Ana Luiza Albuquerque ◽  
Anelize Bahniuk ◽  
...  
Keyword(s):  
Rio De Janeiro ◽  
Coastal Lagoons ◽  
Carbonate Geochemistry ◽  
Janeiro State

scholarly journals Living benthic Foraminifera from the Saquarema lagoonal system (Rio de Janeiro, southeastern Brazil)

Check List ◽  
2017 ◽  
Vol 13 (2) ◽  
pp. 2062 ◽  
Author(s):  
Pierre Belart ◽  
Vanessa Mattos Laut ◽  
Iara Martins Moreira Matos Clemente ◽  
Débora Silva Raposo ◽  
Virgínia Martins ◽  
...  
Keyword(s):  
Benthic Foraminifera ◽  
Rio De Janeiro ◽  
Coastal Lagoons ◽  
Southeastern Brazil ◽  
Anthropogenic Pressures ◽  
Foraminiferal Assemblage ◽  
Complex Ecosystem ◽  
Benthic Foraminiferal Assemblage ◽  
Janeiro State ◽  
Transitional Environments

Transitional environments such as coastal lagoons with narrow connections to the sea are ecosystems very sensitive to natural or anthropogenic pressures. They are biodiversity hotspots and for this reason it should be studied and preserved. This study lists the benthic Foraminifera species from the Saquarema lagoonal system (SLS), Rio de Janeiro state, Brazil. This complex ecosystem consists of four large connected lagoons, namely Urussanga, Jardim, Boqueirão, and Saquarema. A poorly diversified benthic foraminiferal assemblage was documented from most of the lagoon system and consisted of only eight species belonging to three orders and four families. The relatively low species richness of the SLS compared to other Brazilian coastal lagoons might be explained by several factors including domestic sewage input and the long residence time of water.

scholarly journals Origin, concentration, availability and fate of dissolved organic carbon in coastal lagoons of the Rio de Janeiro State

2013 ◽  
Vol 25 (3) ◽  
pp. 326-340 ◽  
Author(s):  
Albert Luiz Suhett ◽  
André Megali Amado ◽  
Frederico Meirelles-Pereira ◽  
Vinicius Scofield ◽  
Saulo Machado de Souza Jacques ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Rio De Janeiro ◽  
Coastal Lagoons ◽  
Janeiro State

scholarly journals An update on the fish composition (Teleostei) of the coastal lagoons of the Restinga de Jurubatiba National Park and the Imboassica Lagoon, northern Rio de Janeiro State

2013 ◽  
Vol 25 (3) ◽  
pp. 257-278 ◽  
Author(s):  
Fabio Di Dario ◽  
Ana Cristina Petry ◽  
Matheus Maia de Souza Pereira ◽  
Michael Maia Mincarone ◽  
Lorena Soares Agostinho ◽  
...  
Keyword(s):  
Rio De Janeiro ◽  
National Park ◽  
Coastal Lagoons ◽  
Janeiro State

scholarly journals Organic matter composition in the sediment of three Brazilian coastal lagoons: district of Macaé, Rio de Janeiro (Brazil)

2004 ◽  
Vol 76 (1) ◽  
pp. 29-47 ◽  
Author(s):  
Klaus-Gerhard Zink ◽  
André L. S. Furtado ◽  
Peter Casper ◽  
Lorenz Schwark
Keyword(s):  
Organic Matter ◽  
Anthropogenic Disturbance ◽  
Rio De Janeiro ◽  
Coastal Lagoons ◽  
Anthropogenic Input ◽  
Bulk Organic Matter ◽  
Sediment Layers ◽  
Janeiro State ◽  
Microbiological Aspects

Freshwater lagoons comprise important coastal ecosystems and natural buffers between urbanized land areas and open ocean in the Rio de Janeiro State, Brazil. Studies of sediment and water chemistry, zooplankton and bacterial communities to assess the extent of anthropogenic disturbance are available. Here we contribute with an organic-geochemical approach supplemented by some microbiological aspects to complete the characterization of these lagoonal ecosystems. Bulk organic matter and extractable lipids (aliphatic hydrocarbons, alcohols and fatty acids, sterols) were investigated from two locations per lagoon: at the seaward site and landward ends - and at two depth intervals (0-3 and 3-6 cm) per site. Urbanized Imboacica Lagoon received increased anthropogenic input over the most recent years represented by the topmost 3 cm of sediment, whereas deeper sediment layers are less affected by human influence. Eutrophication or nutrient availability favored enhanced algal/cyanobacterial growth. In remote Cabiúnas and Comprida Lagoons pristine conditions are preserved. Organic matter from vascular plants dominates (chain length of free lipids up to C36), which is exceptionally well preserved by acidic lagoonal waters. Differentiation between landward and seaward sites in these two lagoons is less well established due to much smaller surface/volume to catchment ratios. No anthropogenic influences are yet detectable in sediments of Cabiúnas and Comprida Lagoons.

scholarly journals High Uranium Concentrations in the Groundwater of the Rio de Janeiro State, Brazil, Mountainous Region

2018 ◽  
Author(s):  
José Godoy ◽  
Paulo Ferreira ◽  
Elder de Souza ◽  
Larisse da Silva ◽  
Isabela Bittencourt ◽  
...  
Keyword(s):  
Rio De Janeiro ◽  
Mountainous Region ◽  
Janeiro State

A new species of Gonyleptellus Roewer, 1930 from the mountains of Rio de Janeiro State, Brazil (Opiliones: Gonyleptidae)

2020 ◽  
Vol 54 (29-30) ◽  
pp. 1947-1956
Author(s):  
Ludson Neves de Ázara ◽  
Miguel Medrano ◽  
Adriano Brilhante Kury
Keyword(s):  
New Species ◽  
Rio De Janeiro ◽  
A New Species ◽  
Janeiro State

scholarly journals Características sociodemográficas e clínicas de pacientes portadoras de cardiomiopatia periparto: contribuições para a enfermagem [Sociodemographic and clinical characteristics of peripartum cardiomyopathy patients: contributions to nursing] [Características sociodemográficas y clínicas de pacientes portadoras de cardiomiopatía periparto: contribuciones a la enfermería]

2018 ◽  
Vol 26 ◽  
pp. e32033
Author(s):  
Tamires Grama dos Santos ◽  
Karla Biancha Silva de Andrade ◽  
Flávia Giron Camerini ◽  
Andrezza Serpa Franco ◽  
Ana Lúcia Cascardo Marins ◽  
...  
Keyword(s):  
Skin Color ◽  
Rio De Janeiro ◽  
Clinical Characteristics ◽  
Peripartum Cardiomyopathy ◽  
University Hospital ◽  
Respiratory Pattern ◽  
Cross Sectional ◽  
Documentary Analysis ◽  
Cardiac Intensive Care ◽  
Janeiro State

Objetivo: identificar as características clínicas e sociodemográficas das pacientes portadoras de cardiomiopatia periparto em unidade cardiointensiva de um hospital universitário no Estado do Rio de Janeiro. Método: estudo quantitativo, transversal, de análise documental em cinco prontuários, entre janeiro de 2014 a dezembro de 2016, obedecendo aos critérios preestabelecidos de inclusão e exclusão e iniciado após aprovação do Comitê de Ética e Pesquisa. Os dados foram coletados mediante um formulário próprio, tabulados em planilhas eletrônicas e analisados através de estatística descritiva simples. Resultados: houve predominância de idade entre 26-35 anos – 4 (80%), multíparas, etnia parda, internação para pós-operatório de parto cesárea – 4 (80%), internação inferior a 2 semanas 4 (80%). Dentre os problemas de enfermagem encontrados, estão o débito cardíaco diminuído e padrão respiratório ineficaz. Conclusão: divulgar as características sociodemográficas e clínicas dessa clientela pode ajudar a delimitar alguns problemas de enfermagem representativos nessa população.ABSTRACTObjective: to identify the clinical and sociodemographic characteristics of patients with peripartum cardiomyopathy in a cardiac intensive care unit of a university hospital in Rio de Janeiro State. Method: this quantitative, cross-sectional, documentary analysis studied five medical records, between January 2014 and December 2016, according to pre-established inclusion and exclusion criteria, after approval by the research ethics committee. Data were collected using a specific form, tabulated in electronic spreadsheets, and analyzed by simple descriptive statistics. Results: subjects were aged predominantly 26-35 years (4; 80%), multiparous, skin color brown, admitted for caesarean section postoperative care (4; 80%), and for less than 2 weeks (4; 80%). The nursing problems encountered included decreased cardiac output and ineffective respiratory pattern. Conclusion: disclosure of this clientele’s sociodemographic and clinical characteristics can help to delimit some representative nursing problems in this population.RESUMENObjetivo: identificar las características clínicas y sociodemográficas de las pacientes portadoras cardiomiopatía periparto en una unidad de cuidados intensivos coronarios de un hospital universitario en el Estado de Río de Janeiro. Método: estudio cuantitativo, transversal, de análisis documental en cinco historias clínicas, entre enero de 2014 y diciembre de 2016, obedeciendo a los criterios preestablecidos de inclusión y exclusión e iniciado tras la aprobación del Comité de Ética en Investigación. Los datos fueron recolectados a través de un formulario propio, tabulados en planillas electrónicas y analizados a través de estadística descriptiva simple Resultados: hubo predominancia de edad entre 26 y 35 años – 4 (80%), multíparas, etnia parda, internación para postoperatorio de parto cesárea - 4 (80%), internación inferior a 2 semanas – 4 (80%). Entre los problemas de enfermería encontrados, están el débito cardíaco disminuido y el patrón respiratorio ineficaz. Conclusión: divulgar las características sociodemográficas y clínicas de esa clientela puede ayudar a delimitar algunos problemas de enfermería representativos en esa población.

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