Temporal variation of hydrochemical paramerters between the summers of 2002/2003 and 2003/2004, in Admiralty bay, king George Island, Antarctica - Braga, Elisabete de Santis; Berbel, Glaúcia Bueno Benedetti; Maluf, João Carlos Cattini; Perretti, Adriana Rodrigues; Attolini, Fabiano da Silva; Chiozzini, Vitor Gonsalez (Simpósio Brasileiro sobre Pesquisa Antártica, 2005)