Forty people spread across the estuarine beach of northwest Tamgas Harbor to study the invasive European green crab that's been moving into the large bight on the southern shore of Annette Island since at least July 2022.

For two days the last week of April, a cohort of scientists, resource managers and community members who want to quash the spread of the insidious green crab gathered in Ketchikan and visited Annette Island Reserve to share information about the crab's recent invasion in southern Southeast Alaska waters.

A team of organizers and facilitators from federal and state agencies as...