that's what I have noted on Mewa I, my source was Theo:

Rob VL 45

1919 built as steel sailing logger by Wed. Y. de Jong, Gouderak, Netherlands | 26.05.1920 registered as Rob VL 45 for NV Visserij Maatschapij Doggersbank (Rederie Sterk), Vlaardingen, Netherlands | 23.03.1922 sold to NV Visserij Maatschappij Zeeland (B. A. Zee), Vlaardingen, renamed Zeeland I VL 45 | 27.02.1923 sold to NV Visserij Maatschappij de Ijsel, Vlaardingen, renamed Ijsel X VL 45 | 22.01.1925 sold to A. van der Toorn Azn., renamed Scheveningen SCH 7 | 1927 engine installed, 70hp | 03.05.1928 taken over by Reederij voorheen Arie van der Toorn Jz., Scheveningen | 01.03.1933 sold to Towazysto Okretowe Dalekomorskich Polowow Mewa Spolka Akcyjina, Gdynia, Poland, renamed Mewa I GDY 7, callsign SOCI, the logger is still fishing off Netherlands and is managed by NV Rederij Arie v/h van der Toorn, Scheveningen, which also was holding 49% of the owning company | 1939 lengthened to 31.42 m, now 145.37 GRT, skipper Klaas Klein | 01.09.1939 after breakout of WW II left in Scheveningen by polish / dutch crew, and under control of Scheepvart Inspectie Holland, together with Mewa II GDY 8 | 15.09.1939 the newly founded Haupttreuhandstelle Ost in Gotenhafen (HTO) declares the owners with all assets as seized, but the dutch shareholders refuse to deliver the loggers and are trying to bring them back into service via a new company (NV Reederij Mewa, Scheveningen) | 10.05.1940 during breakout of war, the transfer of the loggers to the Netherlands flag was not yet competed | 06.1940 now in Amsterdam, again seized as polish property and under control of Scheepvart Inspectie | 09.07.1940 Generaldirektor Robert Ahlf assigned as manager by Haupttreuhandstelle Ost, management is done by Nordsee Deutsche Hochseefischerei AG, Wesermünde, actual by her daughtercompany Danziger Heringsfischerei GmbH, Danzig | 02.08.1941 aquired by Luftwaffe (German Air Force), Kommando der Schiffe und Boote, Kiel | 04.09.1941 taken over in Rotterdam, later moved to Kiel and used as diving support and aircraft surviveance vessel Möwe I | 1942 owners and logger 'germanized' as Möwe Herings- und Hochseefischerei AG, Gotenhafen and Möwe I | 09.02.1943 registered in Danzig (No. 604), callsign DBJE | 01.09.1943 owners company changed to GmbH | 11.1944 company moved to Cuxhaven | 04.04.1945 sunk burning after being hit by aircraft attack at Germania Werke, Kiel-Hörn | 1947 wreck not yet removed