Landscape Ecology Applied to Mangroves Around Sepetiba Bay (RJ) in 2020

Abstract

Mangroves are important ecosystems for carbon stock, coastal zone protection, culture, economy and biodiversity. In this research we analyze metrics of two mangroves in Sepetiba Bay in 2020. For this, images from the WorldView and Planet satellites were classified in Ecognition using the Geographic Object-Based Image Analysis method. There is a quantitative analysis of the metrics used to support the Landscape Fragmentation Analysis tool in ArcMap. Likewise, it was possible to notice that the total area of the mangrove in the Bay was 36.24 km², with most of it located in the city of Rio de Janeiro (82.88%). Core areas were classified mainly as small; In addition, most people throughout Baía (59.2%) were threatened by edge effect, with Mangaratiba being the areas most affected by these effects (81.84%).