COASTAL LANDSCAPE PLANNING: SÁO SEBASTIAO 
ISLAND WATERSHED BASINS DIAGNOSIS 
Marcus Polette 
Felisberto Cavalheiro 
Universidade do Vale do Itajaí 
Faculdade de Ciéncias do Mar - Curso de Oceanografia 
Rua Uruguai, 458 
88302-202 - Itajaf - SC, Brazil 
ISPRS Commission VII / Working Group 9 
ABSTRACT 
A program for conservation of coastal ecosystems should consist of control of site alteration in the 
shorelands to maintain the optimum quality, abundance, and rate of flow of runoff from coastal watersheds 
into coastal water basins. Säo Sebastiäo island is one of the biggest Brazilian maritime islands covered with 
Atlantic rainforest and part of the Ihabela's State Park. Land-use were influenced by historic factors such as 
the sugar-cane and coffee plantations around the island and by geographical as the declivity and the 
geomorphology as well. Säo Sebastiäo Island was sub-divided into 20 principals watersheds basins, and each 
one with singular abiotic, biotic and socio-economics characteristics. Artizanal fishermen populations are 
concentrated at the ocean side and at the Castelhanos Bay, where accessibility is difficult. Urban populations 
are found at Sáo Sebastiào Channel in order that land-use activities such as: marinas, mangrove landfills, 
urban runoff are disturbing this coastal area. As the environmental management of coastal waters and 
shorelands has as its fundamental goals the maintenance of the carrying capacity of coastal ecosystems, it 
was possible to diagnosis the main island watershed basins as a Geographical Territorial Unit in order to 
ordinate urban and artizanal fishermen populations at the island territory based on landscape planning by 
cartographic methodology at 1:50.000 scale. 
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