Past and Present

MV John Paul De Joria (Ex Vigilant) – Past and Present

IMO Number: 8027406

MV John Pau De Joria

Ex Vigilant

© Patrick Hill

© Patrick Hill (Hull, 16/05/2023)

Steel twin screw motor vessel built in 1982 by Ferguson Bros (Port Glasgow Ltd) (Yard No 487) as a Fishery Patrol Vessel

Technical Data

  • Cost New: $10,021,718
  • Length: 71.40 m (overall) 64.01 m (between perpendiculars)
  • Breadth: 11.71 m
  • Depth: 7.40 m
  • Draught: 4.760 m
  • Tonnage: 1,190 – 1,365 gross/270 – 409 net/388 deadweight
  • Engines: 2 Vee Oil 4SA 12-cylinder Ruston diesels
  • Power: 4149 kW/5,640 HP
  • Speed: 10.7 knots (cruising) 14 knots (service)
  • Berths: 28
  • Decks: 2
  • Endurance: 28 days (max)
  • Capability: Integrated geophysical and environmental surveys. Sub-bottom profiler and digital SSS. Depth capability down to approx 2,000m
  • Call Sign: GCML, PBNX, 6YVZ2
  • IMO Number: 8027406
  • MMSI Number: 339082000
  • Official Number: 398718
  • Port of Registry: Leith/United Kingdom 🇬🇧, Den Helder/Netherlands 🇳🇱, Black River/Jamaica 🇯🇲


Current AIS Location

Please note that this specific vessels AIS position data may be over an hour old and that the vessels position will only be displayed when it is within range of the VesselFinder AIS system. The AIS transponder/ship position data featured on this page is intended for information purposes only and it is in no way related to the 'Safety of Navigation at Sea'. All the AIS ship position data featured within this article is provided by VesselFinder and we are therefore not responsible for its content or its accuracy.


September 1992: Completed as VIGILANT for Government of The United Kingdom (Ministry of Agriculture, Fisheries & Food, MAFF)

2001: Registered Owner: Scotland Govt, Scotland Mins.

July 14th 2008: Sold to Gardline Geosurvey Ltd. For use as a Survey/Research vessel.

October 2nd 2008: Registered Owner: Tranship BV, Netherlands.

November 26th 2009: Registered Owner: Vigilant Ship Service BV.

© Ken Lubi © Ken Lubi © Ken Lubi

© Ken Lubi (Gt Yarmouth, 17/03/2010)

2010: Converted to survey vessel.

2012: Refit and repair at Shipdock Harlingen.

Regarding the job, Shipdock’s project manager Michel Heerschop explained: “Beside a general inspection and some welding and piping work, we were faced with a couple of seriously big jobs. Both propeller-shafts had to be dismounted in order to overhaul the sealing gaskets. Leading eventually to a standard check where one of the shafts is completely removed and thoroughly inspected. The propeller blades were also repaired. In addition, one of the rudder bearings, consisting of two supporting cones, had to be replaced; due to the bearings size this necessitated cutting a large hole in the deck to provide access.” (subseaworldnews)

July 12th 2013: To Gardline Holding, Netherlands (a multidisciplinary marine survey company, providing a comprehensive range of marine services including geophysical, geo-technical and environmental surveys)

© John White

© John White

© Erwim Willemse © Erwin Willemse  

© Erwin Willemse (2015)

© John White

© John White (Gt Yarmouth, 12/06/2016)

2018: Owner: Gardline Ltd, Lowestoft – Gardline Marine Sciences Ltd, Lowestoft

© Patrick Hill

© Patrick Hill (Hull, 27/10/2019)

© Mike Jackson

© Mike Jackson

November 1st 2022: Reportedly sold to Neptune’s Navy and renamed JOHN PAUL DE JORIA. “Repurposed at Hull’s William Wright Dock by the Captain Paul Watson Foundation as an anti whaling vessel”.

© Patrick Hill © Patrick Hill

🆕 © Patrick Hill (Hull, 16/05/2023)


All information is believed to be correct and no responsibility is accepted for any errors or omissions. All items included in this article are subject to © copyright. We would like to take this opportunity of thanking: Fotoflite, Patrick Hill, Mike Jackson, Ken Lubi, John White, Erwin Willemse and Andreas Wörteler for their assistance in producing this feature.

Thanking Jerry Clark for information.

Article © Nigel Thornton and Ray Goodfellow (Dover Ferry Photos Group)


  1. Now owned by Paul Watson’s Neptune’s Navy as an anti whaling vessel , and called John Paul De Joria sailing under a Jamaican flag.

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