(Table 1) Surface water chemistry of northern Victoria Land lakes, supplement to: Borghini, Francesca; Colacevich, Andrea; Caruso, Tancredi; Bargagli, Roberto (2008): Temporal variation in the water chemistry of northern Victoria Land lakes (Antarctica). Aquatic Sciences, 70(2), 134-141

• Main Authors: Borghini, Francesca, Colacevich, Andrea, Caruso, Tancredi, Bargagli, Roberto
• Format: Dataset
• Language: English
• Published: PANGAEA - Data Publisher for Earth & Environmental Science 2008
• Subjects: Sampling date; Sample amount; DEPTH, water; pH; pH, standard deviation; Conductivity, electrical; Conductivity, standard deviation; Chloride; Chloride, standard deviation; Nitrate; Nitrate, standard deviation; Sulfate; Sulfate, standard deviation; Sodium; Sodium, standard deviation; Potassium; Potassium, standard deviation; Magnesium; Magnesium, standard deviation; Calcium; Calcium, standard deviation; Silicon; Silicon, standard deviation; Nitrogen, total; Nitrogen, total, standard deviation; Phosphorus, total; Phosphorus, standard deviation; Nitrogen/Phosphorus ratio; Water sample; Ion chromatography DX-120 Dionex Corp.; UV/VIS Spectrometer; International Polar Year 2007-2008 IPY; Antarctic; East Antarctica; Austral; Victoria Land; Antarc*; Antarctica; International Polar Year; IPY
• Online Access: https://dx.doi.org/10.1594/pangaea.807883; https://doi.pangaea.de/10.1594/PANGAEA.807883

Concentrations of major ions, silicate and nutrients (total N and P) were measured in samples of surface water from 28 lakes in ice-free areas of northern Victoria Land (East Antarctica). Sixteen lakes were sampled during austral summers 2001/02, 2003/04, 2004/05 and 2005/06 to assess temporal variation in water chemistry. Although samples showed a wide range in ion concentrations, their composition mainly reflected that of seawater. In general, as the distance from the sea increased, the input of elements from the marine environment (through aerosols and seabirds) decreased and there was an increase in nitrate and sulfate concentrations. Antarctic lakes lack outflows and during the austral summer the melting and/or ablation of ice cover, water evaporation and leaching processes in dry soils determine a progressive increase in water ion concentrations. During the five-year monitoring survey, no statistically significant variation in the water chemistry were detected, except for a slight (hardly significant) increase in TN concentrations. However, Canonical Correspondence Analysis (CCA) indicated that other factors besides distance from the sea, the presence of nesting seabirds, the sampling time and percentage of ice cover affect the composition of water in Antarctic cold desert environments. : Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150