Marcelle Melosira The people of Vermont have a well-earned reputation for environmental stewardship, so it’s only fitting that the state’s flagship university is operating one of the first hybrid research boats in the United States. The 64-by-19-foot Marcelle Melosira arrived in downtown Burlington, Vt., near the University of Vermont (UVM) campus last summer following delivery from Derecktor Shipyard of Mamaroneck,…