Análise de um fragmento de manguezal e implicações para o manejo florístico do Parque Estadual do Cocó

Abstract

The Cocó State Park covers several geoenvironmental units, such as: coastal plain, fluvial-marine plain and coastal trays. In the Park, there is the mangrove, which has a very characteristic vegetation and is located on the banks of the river Cocó. Although located in a conservation unit, this ecosystem is affected by anthropogenic activities such as deforestation, pollution and invasion of invasive species. Thus, this study aims to perform an analysis of a remnant mangrove formation fragment to suggest management measures and biological conservation for the Cocó State Park. The mangrove vegetation wassampled at a distance of 20 m from the edge of the Cocó River and the center-quadrant method was used. The following vegetation descriptors were analyzed: abundance, density, frequency, dominance and importance value index. The following vegetation descriptors wereanalyzed: abundance, density, frequency, dominance and importance value index. The species Acrostichum aureum L presented (51,13%) the highest value value index of importance, demonstrating the importance of the species to the community, followed by Avicennia schaueriana Stapf & Leechm. ex Moldenke and Laguncularia racemosa (L) C.F.Gaertn with (18.51%). Thus, it is possible to conclude that a management plan is necessary for the recovery of the mangrove and for the river Cocó with the implementation of effective policies and actions in the recovery of vegetation and in the control of river pollution.