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Marine Ecology

Stockfish on the Lofoten islands. Dried cod from Northern Norway is still supplied to Southern Europe and Africa. It was a hanseatic trade good which guaranteed high profits during the Middle Ages. However, the new study shows that the trade with cod from the Lofoten islands goes at least back to the Viking Age. Photo: Petr Šmerkl, Wikipedia, CC BY-SA 3.0

Cod from the Lofoten Islands Ended up on Plates in Haithabu

International scientists prove early long-distance food trade

The Cape Verdean research vessel ISLANDIA has been used to take samples from the low-oxygen eddy. Photo: B. Fiedler, GEOMAR

Extreme low-oxygen Eddies in the Atlantic produce Greenhouse Gases

International research team discovers previously unknown processes in the Atlantic

Two crew members of cruise M116 take water samples with a so called CTD rosette. Photo: M. Visbeck, GEOMAR

Iron deficiency restrains marine microbes

GEOMAR scientists discover important process in the nutrient cycles of the tropical North Atlantic.

A marbled spinefoot rabbitfish grazing on turf algae in the Mediterranean Sea off Israel. Photo: Erez Yeruham, IOLR

'Trojan Fish': Invasive Rabbitfish Spread Invasive Species

International science team discovers new way for alien species to spread in Oceans


Cold-water corals: acidification harms, warming promotes growth

Long-term study reveals combined effects of two climate change drivers

During the coming months scientists will use a combination of the most diverse measurements to better understand processes in the oxygen minimum zone off Peru. Photo: Michael Schneider, RV METEOR

Four-month Cruise with German RV METEOR off Peru

Collaborative Research Centre 754 investigates oxygen minimum zone in the Southeast Pacific

The German RV MARIA S. MERIAN in Mindelo. Photo: Björn Fiedler, GEOMAR

Summit Meeting on an Underwater Mountain

Marine scientists from Kiel install observatory in the tropical Atlantic