Salinity Gradient
Mostrando 1-12 de 44 artigos, teses e dissertações.
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1. Response of mangrove plant species to a saline gradient: Implications for ecological restoration
ABSTRACT Mangroves are salt tolerant plants that occur in tropical and sub-tropical sheltered coasts. Saltwater intrusions into terrestrial landscapes often occur due to either anthropogenic reasons or natural calamities such as tsunamis. We investigated the potential of using mangrove species for rehabilitation of high saline environments by revealing the c
Acta Bot. Bras.. Publicado em: 2021-03
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2. Mollusks associated with the Avicennia schaueriana (Magnoliophyta: Acanthaceae) roots of a hypersaline estuary in northeastern Brazil
Resumo Objetivo Avicennia schaeuriana é uma das seis espécies que compõem as florestas de mangue do Brasil e formam franjas de mangue ao longo dos cursos d’água, sendo diretamente influenciadas pela maré. As raízes do mangue A. schaeuriana atuam como um dos microhábitats utilizados pela biodiversidade de invertebrados do ecossistema estuarino. Este
Acta Limnol. Bras.. Publicado em: 15/07/2019
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3. Large-Scale Spatial and Temporal Variability of Larval Fish Assemblages in the Tropical Atlantic Ocean
Abstract This study investigated the large-scale spatial and temporal variability of larval fish assemblages in the west tropical Atlantic Ocean. The sampling was performed during four expeditions. Identification resulted in 100 taxa (64 families, 19 orders and 17 suborders). During the four periods, 80% of the total larvae taken represented eight characteri
An. Acad. Bras. Ciênc.. Publicado em: 14/02/2019
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4. Electrochemical Systems for Renewable Energy Conversion from Salinity and Proton Gradients
Ever-rising energy demand, fossil fuel dependence, and climate issues have harmful consequences to the society. Exploring clean and renewable energy to diversify the world energy matrix has become an urgent matter. Less explored or unexplored renewable energy sources like the salinity and proton gradient energy are an attractive alternative with great energy
J. Braz. Chem. Soc.. Publicado em: 2018-05
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5. Analysis of fish assemblages in sectors along a salinity gradient based on species, families and functional groups
Neste trabalho foi testado o efeito do gradiente de salinidade do eixo-leste oeste do sistema subtropical Complexo Estuarino da Baía de Paranaguá na estrutura dos peixes de águas rasas, determinado de acordo com as métricas taxonômica (famílias e espécies) e de composição funcional. Um total de 152 espécies foi registrado. As famílias com maior n�
Braz. j. oceanogr.. Publicado em: 2013-12
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6. Effects that nutritional and saline gradients have on the growth of Passiflora mucronata Lam. and Canavalia rosea (Sw.) DC. found in the restinga of Brazil
Salinity and fertility are the main factors cited in Within the restinga (coastal woodland) biome in Brazil, the positioning of Canavalia rosea and Passiflora mucronata occur, respectively, near the shore-in the creeping psammophyte formation (CPF) - and far from the shore - in the Palmae formation (PF). The hypothesis that such positioning is related to sal
Acta Bot. Bras.. Publicado em: 2013-06
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7. Labile copper and zinc fractions under different salinity conditions in a shipyard area in the patos lagoon estuary, south of Brazil
Copper and zinc are common elements in paint residues and can be toxic to estuarine organisms. This study aims to determine the labile dissolved and labile particulate fractions (LPFs) of copper and zinc in the estuarine waters of a shipyard in southern Brazil under different salinity levels and in different seasons. The labile dissolved fraction was determi
Quím. Nova. Publicado em: 2013
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8. Observação do transporte de sedimentos em suspensão ao longo do Canal Norte do rio Amazonas durante condições de baixa descarga (outubro 2008) / Observation of suspended sediment transport along North Channel of Amazon river during low discharge (October 2008)
The Amazon river, located in northernBrazil, discharges between 80,000 and 250,000 m3s-1 of water onto the adjacent shelf, creating a plume of brackish water that extends hundreds of kilometers away from the river mouth. This river also carries a large amount of fine sediments to the ocean where fluid mud has been found in the topset and upper foreset layers
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/10/2011
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9. Variações na estrutura das assembléias de peixes ao longo de um amplo gradiente estuarino-límnico do complexo Lagunar Patos-Mirim / Fish assemblage structure across a large subtropical estuarine/freshwater gradient
A presente dissertação é composta de um capítulo (em Português) sintetizando os principais resultados obtidos, os quais são apresentados na forma de um manuscrito (em inglês) no apêndice. O principal objetivo foi analisar o padrão de distribuição das assembléias de peixes e a influência de algumas variáveis ambientais na abundância relativa da
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/03/2011
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10. Spatial and temporal structure of fish assemblages in a hyperhaline coastal system: Ría Lagartos, Mexico
The spatial and temporal fish species assemblages were analyzed throughout two annual cycles (2004-2005 and 2007-2008) in the Ría Lagartos Lagoon system, Mexico, via non-parametric multivariate analyses. We compared density and biomass of fish species among five habitat types defined by combinations of structure and environmental characteristics (hyperhalin
Neotropical Ichthyology. Publicado em: 09/09/2011
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11. Levantamento dos níveis de radioatividade natural em águas do alto Vale do Ribeira à planície costeira do litoral sul do Estado de São Paulo / Assessment of natural radioctivity levels in waters from Higher Ribeira Valley until the southern Sao Paulo State coastal plain
The complex exchange of fluvial, subsurface and seawater within a coastal area directly affects global biogeochemical cycles and the application of isotopic tracers, mainly natural radionuclides from U and Th series, is a powerful tool to track sources and sinks of trace elements and nutrients to this systems. The unique Ra signature applied to quantify the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/11/2010
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12. ANÃLISE TÃCNICO-ECONÃMICA DA RECUPERAÃÃO DE UM SOLO SÃDICO NO PERÃMETRO IRRIGADO CURU-PENTECOSTE-CE / Techno-economical analysis of the reclamation of a sodic soil in the Irrigated Perimeter Curu-Pentecoste-CE.
In the semi-arid part of Northeastern Brazil, the highest incidences of salinized areas are observed in land subjected to intense irrigated cultivation, in the âPerÃmetros Irrigadosâ (irrigated perimeters), particularly those where is used the surface method. The experiment was performed in the âNÃcleo Dâ (D Core) of the âPerÃmetro Irrigado Curu-Pent
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/04/2010