Informações Oceanográficas temporais do Estuário da Laguna dos Patos das décadas de 80 e 90 foram processadas e comparadas com os resultados gerados através das novas tecnologias de geoprocessamento. Os dados utilizados ...

O Saco da Mangueira (SM) é uma enseada semifechada, conectada ao estuário da Lagoa dos Patos. Devido a sua importância local, esta enseada está sujeita a sérios impactos antrópicos. Com a finalidade de fornecer subsídios ...

Pipefish species are poorly known representatives of the family Syngnathidae, which have been increasingly threatened by anthropogenic activities. We describe the diet composition and feeding strategy of southern pipefish ...

Apesar de existirem sistemas orbitais de alta definição, imagens capturadas por sensores aerotransportados, são muito utilizadas, pela sua versatilidade, alta definição, disponibilidade em tempo real, proporcionando alto ...

A velocidade, magnitude e alcance espacial das alterações humanas no ambiente não têm precedentes. As mudanças no uso e cobertura do solo em escala global têm afetado aspectos chave do funcionamento da Terra. O entendimento ...

This work presents natural hazards (permanent and non-permanent) related to beach bathing, as well as to social use of Futuro beach in Fortaleza city (Ceará stae, Northeast Brazil). In order to obtain such informations it ...

This article presents a sea level rise vulnerability map built for Marinheiros Island, South Brazil, through specific routines for support decision in a Geographical Information System. A previous environmental diagnosis ...

Despite its ecological , economic s and geopolitical importanc e , Mirim lagoon is still poorly known .In this paper we present the first data about organic composition and nutrient levels in lagoon sediments . Total ...

High lead concentrations up to 5478 mg kg-1 were detected in dry atmospheric precipitations in Rio Grande city and adjacent area. Lead anomalies cover up to 30% of the study area. Lead concentration measurement in dry ...

The alteration in the quality of groundwater in the industrial zone of Brazil’s southernmost state was assessed by a hydrogeochemical study. In 70-85% of the studied area, fluoride, nitrate and phosphate in groundwater ...

This study was aimed at determining the range and spatial distribution of mercury in a geographical area influenced by the emissions of phosphate fertilizers industries in Rio Grande, Brazil. The case study demonstrated ...

Bathymetric, sedimentological and seabed acoustic backscatter data were integrated into a 3D GIS (Geographic Information System). 38 kHz echo sounders were used to collect data over 14,596 nautical miles during six fish ...

Free-living and attached bacterial population sizes were determined fortnightly from December 1991 to December 1992 in natural and disturbed areas of an Amazonian clear water lake (Batata Lake, Pará, Brazil) impacted by ...

In August of 1998 the tanker BAHAMAS belonging to the Chem Oil Company containing 12 000 t of concentrated sulphuric acid, had an accident on board, after which estuarine water entered one of the compartments of the tanker, ...

Este trabalho apresenta uma relação das espécies de anfíbios do Parque Nacional da Lagoa do Peixe. Durante os anos de 2001 e 2002 os anfíbios foram amostrados através de armadilhas de queda, procura visual e identificação ...

The opportunistic carnivore fish yellow jack (Carangoides bartholomaei) is recorded using swimming hawksbill (Eretmochelys imbricata) and green (Chelonia mydas) turtles as shelter to rove at Baı´a do Sueste, Fernando de ...

The southern Brazilian coast is the major fishery ground for the Brazilian sardine (Sardinella brasiliensis), a species responsible for up to 40% of marine fish catches in the region. Fish spawning and recruitment are ...

This study describes the distribution of fish eggs and larvae along the southeastern and southern Brazilian coast. Plankton samples were collected at 85 stations using a Bongo net, and water salinity and temperature were ...

Recruitment of pelagic fish is the result of a group of processes that affect their entire life cycle. Most of the variability in pelagic fish natural mortality is thought to occur during the early life stages of development, ...

The rate of growth increment deposition in otoliths and the early development of Micropogonias furnieri larvae were studied in laboratory under salinity and temperature of 30-35 and 23-25 oC respectively. Hatching occurred ...