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The article presents the study conducted by the research ship Polarstern in the Weddell Sea area in late 2014, particularly the material composition of the Weddell Sea Bottom Water (WSBW). Also studied are the basal melting rates for the ice shelf in southern Weddell Sea, the role of basal melt water in local Antarctic Bottom Water formation, and the temporal trends in glacial melting processes.

The article focuses on the methods undertaken to study the sea ice conditions that are needed for the successful larval development of krill at winter time. Topics discussed included krill sampling for the determination of their condition, ice core sampling for the identification of potential sources of food, and the time frame for the presentation of expected results.

The article presents the oceanography study and tracer measurements conducted in Weddell Sea's Filchner Trough by the research ship Polarstern in late 2013. The study aims to determine the factors that result in enhanced food availability in the area and its relation to physical processes. Also studied are the foraging migrations by seals at sea and the effects of climate changes in the oceans.