The Atlantic Coast is most vulnerable to rising sea levels affecting fisheries due to its low-lying coastal areas and significant marine ecosystems.

The Atlantic Coast is particularly vulnerable to the impacts of rising sea levels, which pose significant risks to its fisheries. The region is home to vital marine ecosystems like salt marshes, estuaries, and coastal wetlands that support diverse fish species. As sea levels rise, these habitats are at risk of flooding, erosion, and salinization, which can disrupt the migration, breeding, and feeding patterns of fish. Rising water temperatures can also affect fish populations, pushing them to migrate further north. The Gulf of Mexico is also at risk, but the Atlantic Coast is more affected by both sea level rise and the associated ecological shifts.