Surface characteristics and metazoa occurrence at ice station PS67/006-1 during POLARSTERN cruise ANT-XXII/2 (Nov 2004-Jan 2005) ...

• Main Authors: Kiko, Rainer, Michels, Jan, Mizdalski, Elke, Schnack-Schiel, Sigrid B, Werner, Iris
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2008
• Subjects: AWI; Ice station; ANT-XXII/2; Polarstern; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158; Antarc*; Antarctic; Arctic; Sea ice; Weddell Sea
• Online Access: https://dx.doi.org/10.1594/pangaea.848463; https://doi.pangaea.de/10.1594/PANGAEA.848463

The surface and sub-ice layer habitats and their metazoan fauna were studied on a drifting pack-ice floe in the western Weddell Sea from 29 November 2004 to 1 January 2005 during the "Ice Station POLarstern" (ISPOL). Flooding of the floe occurred at some places, and the establishment of surface layers with a brownish colour due to growing algae was observed at several sampling sites. The average surface-layer temperature, brine salinity and brine volume were -1.4 °C, 25.3 and 54%, respectively. The temperature-salinity relationship in the surface layer was seldom at equilibrium conditions. Chlorophyll a (Chl a) concentrations in the brine varied between 1.0 and 53.5 µg /L. Surface-layer thickness, salinity, Chl a concentration and copepod abundances were generally higher at the edge of the floe than in the inner part. The sympagic copepod species Drescheriella glacialis/racovitzai and Stephos longipes, with abundances ranging between 0 and 3830 ind/L (median: 2 ind/L) and 0 and 1293 ind/L (median: 4 ind/L), ... : Supplement to: Kiko, Rainer; Michels, Jan; Mizdalski, Elke; Schnack-Schiel, Sigrid B; Werner, Iris (2008): Living conditions, abundance and composition of the metazoan fauna in surface and sub-ice layers in pack ice of the western Weddell Sea during late spring. Deep Sea Research Part II: Topical Studies in Oceanography, 55(8-9), 1000-1014 ...