Defender Chris Hunter has completed a permanent move to West Auckland Town for an undisclosed fee.
Hunter joined the Mariners from Darlington in the summer and went on to make five competitive appearances for the club.
His only goal for Shields came in a 4-1 defeat at Farsley Celtic in August.
The right-back joined Northern League side West Auckland on loan last month, and that move has now been made permanent.
Everyone at the club would like to wish Chris well for the future. He and his family will always be welcome at Mariners Park.