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.