Abstrak alue naga area is a mangrove rehabilitation area and there are many sticker biota. this study aims to determine the abundance of attachment biota contained in mangroves in the estuary of alue naga district syiah kuala banda aceh city. this study was conducted in july 2016. the method used purposive sampling. the results found 17 species of biota attached with mangroves. the abundance of sticking biota ranges from 0.01 - 5.00 ind / m², with the highest abundance of alectryonella picatul. the mangrove densities found in the range of 0.25-0.5 ind / m², of the rhizophora apiculata type. the dominance index in the research area is root of stem and leaf is in low category. the conclusions obtained show that the dominant index is low and no species are dominant. keywords: biota attached, mangrove, muara alue dragon abstrak kawasan muara alue naga merupakan kawasan rehabilitasi mangrove dan banyak terdapat biota penempel. penelitian ini bertujuan untuk mengetahui kelimpahan