Border guards took Captain Araki to the prosecutor's office to the ship. He can be sentenced up to five years of imprisonment, a spokesman for the prosecutor's office told RIA Novosti.
Araki can be released on bail worth 1 million rubles ($1=27.49 rubles). He is to stay in Petropavlovsk-Kamchatsky until the investigation ends, RIA Novosti's interlocutor reported.
The trawler's owner voluntarily repaid the damage to the Russian side and the vessel will be set free in compliance with the United Nations Convention on the Law of the Sea.
The Japanese trawler detained by Russian border guards in the Sea of Okhotsk in early February had a fishing permission but caught over 22,000 tons of cod over the limits. The ecological damage is over 300,000 rubles.
The investigation will also give a legal assessment to the activities of the inspector of the Russian State Marine Inspection who was on board the Marunaka Maru-28 as an observer and permitted the illegal fishing.