HMS Herring ( T 307 ) was an anti-submarine warfare trawler launched in December 1942 .
HMS Herring ( T 307 ) sunk in April 1943 in a collision with the French merchant vessel Cassard north - east of Blyth .
HMS Herring ( T 307 ) was an anti-submarine warfare trawler launched in December 1942 and sunk in April 1943 in a collision with the French merchant vessel Cassard north - east of Blyth .