The North Atlantic Aquatic Connectivity Collaborative (NAACC) is a network of individuals from universities, conservation organizations, state and federal natural resource and transportation agencies focused on improving aquatic connectivity in 13 states from Maine to West Virginia. The funding they received after Hurricane Sandy from the Department of the Interior created common protocols for measuring road stream–crossings to identify high priority bridges and culverts for upgrades and replacement to improve coastal resiliency and fish passages. Credit: Steve Droter

Developing technologies to map where the barriers are have helped biologists to better assess the threats to wildlife. Credit: Steve Droter