The hearing will be Watson's sixth since his arrest in July in Nuuk, capital of the Danish autonomous territory.
Prosecutor Mariam Khalil told AFP that she has "requested a four-week extension to the period of pre-trial detention".
Watson's lawyer Julie Stage is meanwhile pleading for his release.
"I'm going to ask for his immediate release," she said.
The activist, who turns 74 on Monday, was detained on a 2012 Japanese arrest warrant, which accuses him of causing damage to a whaling ship in the Antarctic in 2010 and injuring a whaler. Читать дальше...