The sedimentary distribution variation of a 60 km shoreface tract on the northern coastline of Rio Grande do Sul shows a relationship between distinct morphodynamic zones. This relationship was based on 11 beach and shoreface ...

Zones of erosion and accretion were delimited by comparing a DGPS shoreline mapping in 1997 and the beach line reproduced from the army chart collection of 1975. The results show extensive shore retreat along of Rio Grande ...

O objetivo deste estudo foi analisar a influência da densidade de estocagem na sobrevivência e no crescimento de pós-larvas de F. paulensis cultivadas em gaiolas durante a fase de berçário. Além disso, foram identificados ...

In this study, we detected White spot syndrome virus (WSSV) in wild Farfantepenaeus paulensis collected in the Lagoa dos Patos estuary and cultivated Litopenaeus vannamei. This is the first report of WSSV in F. paulensis ...

Anaerobic anoxygenic phototrophic bacteria can be found in the suboxic waters of shallow stratified coastal systems, and may play important roles in the total primary production of subtropical stratified coastal lagoons. ...

Florações da cianobactéria Microcystis são regulares e recorrentes na lagoa dos Patos e seu estuário (RS). Embora o primeiro registro científico seja datado de 1987, informações de antigos moradores das margens indicam que ...

Microcystins (MCs) are toxins produced by cyanobacteria (blue-green algae), primarily Microcystis aeruginosa, forming water blooms worldwide. When an organism is exposed to environmental perturbations, alterations in normal ...

In January 2008, a patch of high reflectance detected by ocean color satellite images was sampled during a cruise over the southern Argentinean continental shelf. High calcite concentrations (particulate inorganic carbon ...

We describe the phytoplankton community and biomass during a summer coccolithophorid bloom sampled over the Patagonian shelf (48.58S– 50.58S). Those phytoplankton species can contribute to the flux of calcium carbonate out ...

Iron (Fe) and other trace elements such as Zn, Mn, Ni and Cu are known as key-factors in marine biogeochemical cycles. It is believed that ocean primary productivity blooms in iron deficient regions can be triggered by ...

Cassino Beach (lat. 32°13’S, long. 52°15’W, Southern Brazil) is an exposed, intermediate to dissipative sandy beach, where dense accumulations of the diatom Asterionellopsis glacialis occur in the surf zone. The frequency ...

The Atlantic spadefish Chaetodipterus faber is an excellent candidate for aquaculture development, but success will depend on the identification of proper feeds and feeding regimens for this species. Accordingly, we evaluated ...

As bacias hidrográficas exorréicas estão conectadas à zona costeira por fluxos hidrológicos como água, sedimento, matéria orgânica e inorgânica, e espécies biológicas que, em parte, condicionam a dinâmica do ambiente marinho ...

Technology for the culture of the pink shrimp Farfantepenaeus paulensis in low-cost cages and pen enclosures was developed together with artisanal fishermen of the Patos Lagoon estuary, southern Brazil. Although the ...

A análise da criação de Farfantepenaeus brasiliensis e Farfantepenaeus paulensis em gaiolas, na Lagoa dos Patos, Rio Grande do Sul (RS), foi realizada a partir de juvenis produzidos em cativeiro com peso médio inicial de ...

Nickel and vanadium were tested as tracers of oil refinery emission distribution in populated area of Rio GrandeRS. The anomalies of these elements in surface soil are considered a long-term reflection of the emissions in ...

Cassino Beach, in Southern Brazil, is an exposed, intermediate to dissipative sandy beach, which presents conspicuous accumulations of the diatom Asterionellopsis glacialis in the surf-zone. Despite this phenomenon represents ...

During the summers of 2006 and 2007 morphodynamic data, images from an Argus System, and lifeguards rescue data were analyzed on Cassino beach with the aim to identify the most hazardous situations for bathing purpose. ...

The pink prawn (F. paulensis) is one of the most important fishery resources in SE/S Brazil and overexploitation has led to stock collapse in 90’s. The aim of this investigation was to apply histological techniques and ...