George Miller reached double figures for the season with a brace either side of a brilliantly executed half-volley from Harrison Biggins to send Rovers within two points of the play-offs.
Miller had Kyle Knoyle to thank for assisting his tenth and eleventh strikes of a fruitful first campaign in red and white.
Substitute James McAtee grabbed a late consolation goal for the Mariners, punishing a rare moment of poor quality from the visitors during an otherwise very strong display.
Scroll down for our player ratings.
9. Kyle Hurst - 6
Not as menacing as his teammates but played his part in a very good display overall. Photo: Howard Roe/ahpix.com
10. Luke Molyneux - 7
Showed plenty of endeavour and had one or two dangerous moments but that first goal remains elusive. Photo: Howard Roe/ahpix.com
11. George Miller - 8
Saw a header kept out moments before grabbing his tenth goal of the season with a well-taken close-range finish. Scored goal number 11 when he took down Kyle Knoyle's delivery brilliantly and placed the ball through the keeper's legs. Photo: Howard Roe/ahpix.com
12. Adam Clayton - N/A
Introduced late on and helped Rovers hold onto their lead. Photo: Howard Roe/ahpix.com