JESS BIDGOOD

Joe Young holds young oysters in the first stages of development in Corea, Maine, Aug. 11, 2017. Like others who want to diversify their sources of income, Young, 64, a sixth-generation fisherman, is trying his hand at aquaculture by farming oysters. (Damon Winter/The New York Times)

A fisherman tries farming

In Maine, fishermen have been turning to aquaculture to diversify an income that has been long relying on a single bounty from the sea: lobster.