BELCHERTOWN, Mass. — Spring's arrival means fishing at the Quabbin Reservoir in western Massachusetts is just around the corner.The Massachusetts Department of Conservation says the 2018 fishing season at the reservoir will open Saturday April 21 at 5 a.m. The fishing season lasts until Oct. 20.The Quabbin Reservoir holds 27 species of fish, 17 of which are sought by anglers.