She served as a submarine chaser (U-Jäger) under Otto Pollmann, Germany’s most decorated anti-submarine warfare officer.

With a Gross Register Tonnage of 1152 tons she was an ocean-going trawler and was employed in France’s deep sea fishery.

In November 1942 Germany invaded Vichy France, and Marcella was seized by the Kriegsmarine for conversion as an anti-submarine naval trawler.

On completion she was commissioned by Lt. Otto Pollmann and in the 15 months under his command, claimed 14 Allied submarines destroyed, although only one of these, (HMS Tigris) can be substantiated.

On 27 February 1943 Uj-2210 was escorting a convoy south east of Capri and made an attack on a submarine contact.