Camp, who signed a $750,000 Major League contract with the Mariners in last month, was having a successful spring by all accounts upon his release this morning.
The reliever had managed a 2.16 ERA and six strike outs over seven appearances (8 1/3 IP) this spring.
Camp was headed towards his ninth year in the majors, the last four of which were spent as a late-inning option in the Toronto Blue Jays bullpen.
For his career, Camp has amounted a 4.40 ERA, 6.2 K/9, 2.7 BB/9 and 101 ERA+, averaging 61 innings a season.
Camp is the second veteran reliever in as many days that the Mariners have removed from their roster. Seattle released former All-Star reliever Hong Chi Kuo yesterday, just a month after he signed a Major League contract with the club.
Shawn Camp released | Twitter @GregJohnsMLB
#Mariners have released reliever Shawn Camp.