| Summary: | This study aims to investigate the community composition similarity of invertebrates in the Nglambor intertidal zone. The similarity of invertebrate communities in the Nglambor intertidal zone in Indonesia was studied in August and September 2020.. The data of occurring invertebrates and algae were obtained by plot method. Abiotic factors such as water pH, light intensity, and salinity were measured at each station. The similarity in invertebrate communities among habitat types was determined using the Dice’s coefficient, meanwhile to estimate similarities in habitat utilization we use Jaccard’s coefficient in PAST 4 software. Both invertebrate community similarity and habitat utilization were displayed in an cluster dendrogram. A total of five phyla was recorded, comprising Annelida, Arthropoda, Echinodermata, Mollusca and Nemertea. Algae cover varies from each station with the average cover reaches 52%. The result of the cluster analysis showed different models of invertebrate community similarity and habitat use that may be used for species conservation.
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