<![CDATA[Abstract. Hilmi E, Sari LK, Cahyo TN, Dewi R, Winanto T. 2022. The structure communities of gastropods in the permanently inundated mangrove forest on the north coast of Jakarta, Indonesia. Biodiversitas 23: 2699-2710. The permanently inundated mangrove ecosystem support gastropods communities to live and grow. The gastropods communities require a mangrove ecosystem for feeding, spawning, nursing, distributing, and breading. The distribution of gastropod communities is shown by the number, association, and clustering of gastropods and is influenced by the potential of permanent water inundation. This research used association, clustering, and correlation methods to describe the distribution of gastropod communities. The results of this research showed that the mangrove ecosystem on the north coast of Jakarta was dominated by Avicennia marina, Bruguiera gymnorrhiza, Calophyllum inophyllum, Cerbera manghas, Excoecaria agallocha, Nypa fruticans, Rhizophora apiculata, Rhizophora mucronata, Rhizophora stylosa, Sonneratia caseolaris, Terminalia catappa, and Thespesia populnea with density between 20-2800 trees/ha. However, the gastropods communities in the mangrove ecosystem were dominated by Cassidula angulifera, Cassidula aurisfelis, Cassidula plecotrematoides, Cassidula rugata, Ellobium aurisjudae, Ellobium gangeticum, Pythia plicata, Cerithidea obtusa, Cerithidea quoyii, and Melanoidessarius tuberculata with abundance between 0.36 to 6.68 ind/m2, 12 pairs positive association from 78 pairs, had uniform distribution (Moroshita index 0-0.87), and two clusters.]]>
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