Titlebook: Subtropical Convergence Environments; The Coast and Sea in Ulrich Seeliger,Clarisse Odebrecht,Jorge Pablo Cas Book 1997 Springer-Verlag Ber

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Fisheries,outhwestern Atlantic (Yesaki 1973). Today about 6000 artisanal (Reis 1992) and 3000 industrial fishermen are temporarily or permanently involved in fishing activities. Despite the economic and social importance fisheries have historically assumed in this region, reliable records on fishing methods a

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Natural and Human Impact,ury (von Ihering 1885). In particular, the Patos Lagoon and estuary have been subject to multiple human impacts during the past few decades. In the near future though, a gradual degradation of the ozone layer and increasing sea levels are likely to pose major ecological problems for the entire regio

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Coastal Plain and Patos Lagoon,The lagoon receives waters from a 201 626 km. drainage basin, either directly from tributaries or through the São Gonçalo Channel from the Mirim Lagoon watershed (Fig. 3.1). Elevated precipitation and complex river flow patterns in the drainage basin result in highly dynamic and rapidly changing hydrographic processes.

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Energy Flow and Habitats in the Patos Lagoon Estuary,oon estuary, the various primary producers display different production patterns, and the rates of production are likely to vary in response to biotic and abiotic conditions; thus, the availability of live organic matter and detritus may fluctuate considerably within and between years.

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