"The vessel traffic returned back to normal after the fog cleared," the service said in a statement.
Vessel traffic was suspended for over four hours on Monday due to heavy fog.
Heavy fog has also forced 22 planes to change their landing airport in Istanbul as Sabiha Gokcen International Airport in the eastern part of the city has temporarily stopped receiving flights and flights were transferred to the city's new airport, according to the media.
Departures from Sabiha Gokcen Airport were resumed after a one-hour suspension.
Previously, transit of vessels through Dardanelles was suspended in November 2021 due to fog.