Mangueira Bay is a semi-enclosed system that is very important to the communities living around the city of Rio Grande. It is influenced by multiple and conflicting human impacts. This embayment is connected to Patos Lagoon ...

Este trabalho constitui um ensaio teórico que aponta elementos fundantes de uma proposta de qualificação profissional de pescadores artesanais que habitam as margens do estuário da Lagoa dos Patos e pertencem ao município ...

This paper analyses the impact of the activities of distant water fleets on Namibia’s marine ecosystem through the use of simulation modeling. Mass-balance trophic models and economic valuation techniques are combined to ...

A predictive model for impact assessment of shrimp (Farfantepenaeus paulensis) culture in pen enclosures was developed. Experiments were carried out at Saco da Mangueira, a small embayment at the Patos Lagoon estuarine ...

Feeding success and changes in horizontal patchiness relative to size were studied for anchovy, Engraulis anchoita, larvae caught with a Bongo net off southern Brazil. Results show higher feeding success rates during winter, ...

This paper evaluates a range of constant harvest rate, constant escapement, and effort control strategies in the purseseinefishery for the Braziliansardine by accounting for uncertainties in the processes controlling ...

A field study of the microbial food web was conducted in a shallow region of the Patos Lagoon estuary (32°07′S; 52°06′W) between March 1989 and March 1990. On average, bacterial biomass (mainly attached bacteria) constituted ...

The effect of a 7-nao drought (La Nifia 1988) was evaluated on pelagic properties in the large Paros Lagoon (30~176 50~176 Frona December 1987 to December 1988, surface water was sampled along the longitudinal axis of the ...

Experiments were conducted to test the usefulness of biofilms—a microbial consortium associated with extracellular polymeric substances attached to submersed surfaces—in reducing the levels of ammonium and phosphate of ...

This paper presents the "rst data on the vertical distribution of chlorophyll and nutrients in the upper layers of the southern southwestern Atlantic and interprets it in relation to frontal systems and the general ...

Abundance and respiration of free and attached microorganisms were monitored during the decomposition of the seagrass Scirpus maritimus leaves in laboratory microcosms for 30 days. There was a clear succession between ...

The contribution of biofilm and artificial feeds for the growth of the pink shrimp Farfantepenaeus paulensis reared in tanks and net cages were evaluated by using stable isotope (δ13C and δ15N) analysis. In the net cage ...

In this study different methods were applied for lipids extraction from the dry biomass of Chlorella pyrenoidosa. The survey was carried under different conditions seeking comparative assessment of extraction methods. The ...

[D-Leu1]Microcystin-LR was identi®ed as the most abundant microcystin from a laboratory strain of the cyanobacterium Microcystis sp. isolated from a hepatotoxic Microcystis bloom from brackish waters in the Patos Lagoon ...

Satellite-derived chlorophyll-a fields have been used to investigate temporal and spatial variability of chlorophyll-a concentration over the continental shelf zone (25–401S and 60–451W) close to the La Plata River ...

Sequential infrared satellitebeen usedbetween November images 1995 and August 1996 have to derive sea sur- face advective velocities in the southwestern Atlantic Ocean using the Maximum Cross-Correlation (MCC) technique. ...

Satellite image studies and recent in situ sampling have identified conspicuous phytoplankton blooms during spring and summer along the Patagonia shelf-break front. The magnitudes and spectral characteristics of light ...

Recent satellite observations have shown an increase in the total extent of Antarctic sea ice, during periods when the atmosphere and oceans tend to be warmer surrounding a significant part of the continent. Despite ...

The composition and distribution of phytoplankton assemblages around the tip of the Antarctic Peninsula were studied during two summer cruises (February/March 2008 and 2009). Water samples were collected for HPLC/CHEMTAX ...

The shrimp Farfantepenaeus paulensis is considered a suitable species for culture in the Patos Lagoon estuary, southern Brazil, where its catch has been decreasing in the last few years. Considering the potential of ...