Abstract
Universidade Federal da Bahia - Instituto de Geociencias landim@ufba.br Despite the existing proposals for sustainable use of the Brazilian coast, there are few mechanisms for quantification and qualification of anthropogenic impacts. For instance, the Projeto Orla (MMA, 2006) defines typologies of coastline classification, taking into account aspects of the landscape such as originality, human population density and levels of occupation. Nevertheless, the effects of urbanization on resident biota are not considered in this classification. Furthermore, there is a need for studies to validate the use of biological indicators that take into account the spatial and temporal variation of the biota, so as to arrive at a complete assessment of the urbanization impacts on exposed sandy beach. The genus
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