Marcelo Ketzer

Marcelo is on expedition in the Atlantic Ocean to study methane gas in the ocean floor

Linnaeus University's researcher Marcelo Ketzer and visiting researcher Satoko Owari are on a four week expedition in the Atlantic Ocean together with research colleagues from two French universities.

The researchers work around the clock, in four-hour shifts. On the large ship they can collect sediment samples up to 60 meters long with a large instrument called a corer. In the sediment samples the researchers want to investigate the presence of methane in the seabed. The research is important for understanding how methane emissions contribute to ocean acidification and global warming.

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Sediment corer taking a sample from the boat
The instrument the researchers use to collect the sediments from the seafloor (called corer). Marcelo Ketzer
Marcelo on the deck
Marcelo checking if there are gas hydrates (an ice-like substance with methane gas) inside the tubes with sediment. Satoko Owari
Marcelo on deck at night
The researchers are working 24 hours a day inn four hour shifts. Lucas Tortarolo
Marcelo working with samples in the lab
The researchers analyse samples in the lab.
Marcelo Ketzer och Satoko Owari
Marcelo Ketzer and Satoko Owari, visiting researcher from Japan.