Vertical distribution of macrobenthic infauna from the shallow sublittoral zone of Admiralty Bay, King George Island, Antarctica

摘要: A 0.0625 m2 mini-box corer (MBC) was used to study the vertical distribution of macrobenthos in shallow sublittoral zone Admiralty Bay, during 2003/2004 summer, near Brazilian Station Comandante Ferraz, and Peruvian Machu Picchu. Sediment samples were taken from 20, 30 60 m, stratified for particle-size, total organic matter (TOM) faunal composition analysis. The most abundant taxa Polychaeta, Oligochaeta, Amphipoda, Cumacea, Bivalvia Gastropoda. In general, macrofauna concentrated 0–4 cm layer (64% organisms). Correlations between sediment characteristics densities have not completely explained neither aggregation organisms at surface layers nor differences locations 20 m depth. Analysis parameters such as carbon, heavy metals, interstitial water, species should contribute a better understanding diversity patterns found this study.