Fishing regulators and the seafood industry are grappling with the possibility that some once-profitable species that have declined with climate change might not come back.
Several marketable species harvested by U.S. fishermen are the subject of quota cuts, seasonal closures and other restrictions as populations have fallen and waters have warmed. In some instances, such as the groundfishing industry for species like flounder in the Northeast, the changing environment has made it harder for fish to recover from years of overfishing that already taxed the population.
