The Cape Verde Archipelago location and its biogeographical features are of special
interest for Marine Ecology. However, there’s a lack of knowledge regarding the composition of
the coastal ecosystems in this region, especially about benthic macroinvertebrates subtidal
communities. Between August and October of 2007, eight locations around the island of São
Vicente were sampled. Within each of those spots, fragments of substratum were collected and
throughout the processing of the collected data, a total of 4032 individuals were counted, which
belong to 81 different species. Shannon’s Entropy and Gini-Simpson’s diversity index were
calculated, as the real number of species each one represented. By comparing the results,
differences between sampling stations and between indices within the same sampling station were
found. With the purpose of clustering the sampled locations according to the number of collected
organisms by species, a dendrogram was elaborated and a principal component analysis was carried
out. The considered sampling stations didn’t reveal significant differences according to the
composition of their benthic macroinvertebrates subtidal communities in terms of great taxonomic
groups or functional groups. It’s assumed that they differ only by minute traits
