This dataset was generated in the frame of the co-operation between the Huinay Scientific Field Station (http://www.huinay.cl) and the Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research (http://www.awi.de).Measurements on Punta Gruesa 2009-04-16 and 2009-04-17, and X-Huinay SBE 19plus V 2.1 SERIAL NO. 4563: Temperature sensor SN = 4563, Conductivity sensor SN = 4563, number of scans to average = 240. Measurements on Punta Gruesa 2009-04-07 and 2009-0409 Sea-Bird SBE19plus, SeacatPlus V 1.6b SERIAL NO. 5010: Temperature sensor SN = 5010, Conductivity sensor SN = 5010, number of scans to average = 4, sensor 3 = Oxygen, SBE, primary, 1220, 24-Dec-08p.