Origem da deposição da matéria orgânica em seguimentos de manguezal na porção nordeste da Baía de todos os santos, Bahia

Abstract

In this w ork the m angrove sediments o f the northeast portion o f Todos os Santos Bay, Bahia, were collected in immersed stations (1 ,2 ,3 and 4) on sublittoral and stations em erged (5 ,6 ,7 and 8) onm édium littoral, the analyzed param eters were: granulometry, pH and organic components (organic matter, organic carbon and total nitrogen). The süty and clay fractionpredominatedinthe immersed stations while the sedimenfs sand fraction was inthe emerged one. The p H ’s average indicated light alkalinc conditions inthese sediments in the majority. The organic com ponents show ed be richer in the immersed stations and the C/N values showed estuarine and marine source for the organic m atter deposited in these sediments.