Estuary Channel
Mostrando 1-12 de 25 artigos, teses e dissertações.
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1. THE VALO GRANDE CHANNEL IN THE CANANÉIA-IGUAPE ESTUARY-LAGOON COMPLEX (SP, BRAZIL): ENVIRONMENTAL HISTORY, ECOLOGY, AND FUTURE PERSPECTIVES
Resumo Inaugurado em 1852, o canal artificial do Valo Grande (VG), no rio Ribeira de Iguape (SP), configura-se como um dos maiores desastres ambientais da costa brasileira. Este artigo apresenta uma síntese sobre o tema, abordando suas dimensões histórica, ecológica, geográfica e sociopolítica. O VG tem causado a desestruturação do ecossistema e a re
Ambient. soc.. Publicado em: 02/12/2019
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2. Intra-annual variation in rainfall and it’s influence of the adult’s Cyprideis spp (Ostracoda, Crustacea) on a eutrophic estuary (Guanabara Bay, Rio de Janeiro, Brazil).
Resumo A distribuição espacial e temporal de duas espécies de ostracodes adultos (Cyprideis sp. e Cyprideis salebrosa) foi estudada em função do padrão pluviométrico na Baía de Guanabara, Rio de Janeiro, Brasil. As amostras foram coletadas em dez estações ao longo de seis campanhas, representando três períodos (Seco, Pré e Pós Chuvoso) por dois
Braz. J. Biol.. Publicado em: 02/09/2019
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3. No mullet, no gain: cooperation between dolphins and cast net fishermen in southern Brazil
ABSTRACT We report on the interaction between common bottlenose dolphins, Tursiops truncatus (Montagu, 1821) and cast net fishermen in southern coast of Brazil. The fishery was monitored in the mouth of the Tramandaí River Estuary to investigate the seasonality of catches and their relationships with a set of variables: presence/absence and number of bottle
Zoologia (Curitiba). Publicado em: 14/11/2018
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4. Gill parasites of fish from two estuaries in northeastern Brazil: new hosts and geographical records
ABSTRACT Parasites are important components of communities and constitute great part of the biological diversity found in ecosystems, providing valuable information about their hosts and the environment in which they live. However, despite its importance, parasitic diversity is still not well known in some regions of Brazil, especially with respect to fish p
An. Acad. Bras. Ciênc.. Publicado em: 20/07/2017
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5. Circulation and suspended sediment dynamics in a tropical estuary under different morphological setting
ABSTRACT Estuarine processes are directly related to the interaction of its forcing conditions with the local morphology. In this study we assess the implications of the opening of a new inlet on the hydrodynamics and suspended sediment concentration (SSC). A set of physical parameters have been measured in the Itanhém river estuary, a small, shallow and ma
An. Acad. Bras. Ciênc.. Publicado em: 01/09/2016
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6. Avaliação da hidrodinâmica e da poluição no Canal de Piaçaguera, no Estuário de Santos-São VIcente (SP), a partir de informações ambientais e modelagem numérica / Evaluation of hydrodynamics and pollution at Piaçaguera Channel, on the Firth of Santos - São Vicente (SP), from numerical modeling and environmental information.
Localizados na interface entre a terra e o mar, sistemas estuarinos estão propensos a grandes influências de substâncias que são introduzidas por diversas fontes, incluindo rios, deposição atmosférica, efluentes e escoamento de água superficial. Estas áreas, em geral, possuem um forte gradiente de concentração de substâncias químicas, onde essas
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/04/2012
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7. Reproductive biology of Sciades herzbergii (Siluriformes: Ariidae) in a tropical estuary in Brazil
The present study investigated the reproductive biology of Sciades herzbergii in the Paraíba do Norte River Estuary, Brazil. We aimed to characterize the reproduction of the species with respect to sex ratio, spawning season, condition factor and length at first maturity. Specimens were captured between August 2009 and July 2010 in a stretch of the main cha
Zoologia (Curitiba). Publicado em: 2012-10
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8. Caracterização batimétrica e fisicooceanográfica do canal de acesso ao porto de Cabedelo/PB: uma análise ambiental ao derrame de óleo
The State of Paraíba is one of the most dynamic states of Brazil, strategically located in the northeast, is notable for the excellent potential for integration of different transportation modes forming the states of Rio Grande do Norte, Pernambuco and Alagoas. The dynamic that occurs with port activity causes changes in the space where it is installed. And
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/06/2011
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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. Reproductive period of the swimming crab Callinectes danae at the Santa Cruz Channel, a highly productive tropical estuary in Brazil
The aim of this study was to analyze reproductive aspects of Callinectes danae in one of the most productive estuarine systems in the Northeast Brazil, Santa Cruz Channel. A total of 1.573 individuals, being 756 females (23 ovigerous) and 817 males were examined from January to December 2009. Mature males and females, as well as couples of C. danae, occurred
Nauplius. Publicado em: 2011-12
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11. Editorial
Harbor terminals and urban sewage effluents affect the composition and distribution of epibenthic organisms. In this study, we hypothesized that the benthic community structure at the Vitoria Harbor changes spatially in a ~3 km scale, and that these changes are associated with environmental gradients resulting from point-source sewage and differences in the
Zoologia (Curitiba). Publicado em: 2011-10
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12. Avaliação da produção de sedimento na bacia hidrográfica do rio Potengi através do modelo SWAT
Anthropic disturbances in watersheds, such as inappropriate building development, disorderly land occupation and unplanned land use, may strengthen the sediment yield and the inflow into the estuary, leading to siltation, changes in the reach channel conformation, and ecosystem/water quality problems. Faced with such context, this study aims to assess the ap
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/12/2010