A year's survey conducted at a seagrass (Halodule wrightii Ascherson) bed and an adjacent bare sand area, on Codó Beach, Ubatuba, southern Brazil, showed that the macrobenthic species composition was different at the two habitats. Surface deposit feeder infaunal polychaetes were the dominant species in the Halodule site and omnivorous/carnivorous and filter feeder polychaetes, in the bare sand. These difference...