The Mariners are the ECHL affiliate of the National Hockey League's New York Rangers and the American Hockey League's Hartford Wolf Pack.
Ferrill has ECHL experience with the Greenville, suiting up for four games with the Swamp Rabbits in 2017-18. A native of Havertown, Pennsylvania, he played four years of college hockey at the College of the Holy Cross. The 25-year-old forward also played Junior hockey in New England, suiting up for the New Hampshire Jr. Monarchs.
Maltby spent three seasons with the Sherwood Park Crusaders of the Alberta Junior Hockey League, racking up 167 points (95g-72a) in 163 career games.
Adams is a 25-year-old defenseman from Orangeville, Ontario who joins the Mariners after making his pro hockey debut with the Knoxville Ice Bears of the Southern Professional Hockey League in 2017-18. Adams had 10 points (4g-6a) in 15 games for Knoxville before finishing the season in Australia with the Adelaide Adrenaline where he put up 17 points in 14 games. His college career was spent mostly with Wilfrid Laurier University.
LaCouvee comes straight from the college ranks where he led Minnesota State University-Mankato to an NCAA Tournament run in between the pipes. LaCouvee posted a 23-6-1 record with a 1.80 goals-against average and a .914 save percentage. The wins and goals-against average marks landed him in the top five nationally. The 24-year-oldplayed three seasons at Boston University before transferring to Mankato for his senior season.