2001, see below;
from uboat.net, the 6th HMS Bulldog did indeed play a very important role in the anti-submarine war ;
Navy: The Royal Navy
Type: Destroyer
Class: B
Pennant: H 91
Built by: Swan Hunter and Wigham Richardson Ltd. (Wallsend-on-Tyne, U.K.): Wallsend
Ordered:
Laid down: 10 Aug, 1929
Launched: 6 Dec, 1930
Commissioned: 8 Apr, 1931
End service:
Loss position: ,
History: Sold to be broken up for scrap on 15 Janaury 1946.
9 May, 1941
HMS Bulldog was responsible for the capture of U-110, her Sub Lt David Balme finding the Enigma code machine ciphers and code books. U-110 was taken on tow and Bulldog kept her afloat for 17 hours then let the towline slip. The intention was to tow U-110 into Iceland but Admiralty realised this would have been a massive error of judgement. In the event, allegedly, U-110 resolved the matter herself by sinking.
26 Jun, 1944
The German submarine U-719 was sunk in the North Atlantic north-west of Ireland, in position 55º33'N, 11º02'E, by depth charges from the British destroyer HMS Bulldog.
From Wikipedia, note that Bulldog was a Coastal Survey vessel, not an Ocean Survey vessel like Hecla;
Seven vessels of the British Royal Navy have been named HMS Bulldog, after the bulldog:
The first Bulldog was a small 4-gun vessel bought in March 1794 and sold later in the same year.
The second Bulldog was a 16-gun sloop launched in 1782 but converted to a Royal Navy bomb vessel in 1798. She was broken up at Portsmouth in December 1829.
The third Bulldog was a wooden steam powered paddle sloop launched in 1845 but ran aground in 1865 whilst attacking Haiti as part of a punitive raid against revolutionaries who had seized the British consulate. Unable to get her off of the reef, the British blew her up.
The fourth Bulldog was a third class gunboat of the Ant-class, sold for scrapping in 1906.
The fifth Bulldog was a Beagle class destroyer scrapped in 1920.
The sixth Bulldog was a destroyer launched in 1930 and scrapped in 1946. She is most famous for the actions of some of her crew in making the first capture of an Enigma machine.
The seventh Bulldog was launched in 1967 as the lead ship of the Bulldog-class coastal survey ships and sold in 2001 for conversion to a private yacht.
Ocean survey vessels
HMS Hecla
HMS Hecate
HMS Hydra
HMS Herald
Coastal survey vessels
HMS Bulldog
HMS Beagle
HMS Fox
HMS Fawn
Regards, Christian.