Bigelow Laboratory for Ocean Sciences has received another $9.1 million for construction of its new campus in East Boothbay.

The grant was made by the National Institute of Standards and Technology. It is in addition to $4.45 million from the Maine Technology Asset Fund and $4.9 million through the American Recovery and Reinvestment Act.

Scientists at Center for Ocean Health will research marine microbial ecosystems and their role in maintaining ocean health. The center will include 18,200-square feet of space, a research vessel pier and dock space and seawater pumping facilities.

When completed the campus will have more than 70,000-square feet of buildings on its 64-acre campus.

The lab is in West Boothbay Harbor in buildings rented from the state’s Department of Marine Resources.