Arctic phytoplankton and particle flux under climate change

Sampling at the ice edge with Polarstern; left rosette sampling system, right sediment trap, middle sedimenting matter in 300m depth at Gakkel Ridge. Fotos Eduard Bauerfeind, Angelina Kraft, Gordon Lax, Eva-Maria Nöthig

Research

The Arctcic Ocean reacts more sensitive to Gloabal Change than other oceans. Sea ice strongly decraeses, temperatures rise at least twice as much, acidification and, the influence of warmer water from the North Atlantic is increasing ('Altantification')

In order to understand and follow the changes it is essential to perform continuous observations. Since 1991 samples have been taken and analysed and more will be taken in the future mainly as part of projects such as FRAM, LTER HAUSGARTEN, PEBCAO in different regions of the Arctic Ocean. The main goal of our arctic research is to understand and follow seasonal and interannual fluctuations of particle formation, modification, and sedimentation in relation 1) to the environment and changes therein, 2) to changes in key species performances and, 3) to changes in food web structures.

Technical assistance

Elizabeth Bonk

Nadine Knüppel

Christiane Lorenzen

 

in association with

PEBCAO GROUP

LTER HAUSGARTEN

FRAM

 

 

 

 

Investigations since 1991

Investigations since 1991