Weekly Reports Polarstern
The Expedition PS112 Punta Arenas - Punta Arenas
Cruise leg PS112 of RV Polarstern will commence on 17 March 2017 in Punta Arenas (Chile) and end on 6 May 2017 in Punta Arenas (Chile) The main aim of the voyage is based on three third party funded projects POSER (POpulation Shift and Ecosystem Response – Krill vs. Salps) funded by the Ministry of Science and Culture of Lower Saxony (MWK), PEKRIS (The performance of Krill vs. Salps to withstand in a warming Southern Ocean), funded by the German Ministry of Education and Research (BMBF), and KrillBIS (Krill stock assessment in the Southern Ocean) under the umbrella of CCAMLR (Commission of the Conservation of Marine Leaving Resources), funded by the German Ministry of Nutrition and Aquaculture (BMEL).
In the project POSER (POpulation Shift and Ecosystem Response – Krill vs. Salps), we aim to understand population shifts in krill versus salps due to anthropogenic warming in the western Atlantic sector of the Southern Ocean, and the consequences of such shifts on plankton community structure, biodiversity and biogeochemical cycles. PEKRIS act as complementary project to POSER and will investigate the physiological and genetic traits of krill vs. salps supporting potential adaptation to temperature rise. Up to now, only few studies on the response of krill to anthropogenic stressors exist. Almost no equivalent data are available for salps. The overall goal of KrillBIS is the collection of krill and salp stock data for CCAMLR, north of the Antarctic Peninsula to fulfill the objectives set by CCAMLR for developing an adaptive management of the Antarctic krill stock in the Atlantic sector of the Southern Ocean.