By Lenn Thompson, Founder and Editor-in-Chief Yet another new producer has popped up on the North Fork — Mattebella Vineyards. Owned by Mark and Christine Tobin, and named for their children Matthew and Isabella, Mattebella Vineyards owns and operates a 15-acre vineyard that was planted in 1997 and 1998. Of the 15 acres, 6.5 acres are chardonnay, 6.5 are merlot and 2 are cabernet franc. Mark makes the wines with help from the experts at Premium Wine Group, and Christine makes the decisions in the vineyard. Prior to his four new releases, Mark sold fruit to other local producers. Now…