In several Pacific Island countries and territories, rapid population growth and inadequate management of coastal fish habitats and stocks is causing a gap to emerge between the amount of fish recommended for good nutrition and sustainable harvests from coastal fisheries. The effects of ocean warming and acidification on coral reefs, and the effects of climate change on mangrove and seagrass habitats, are expected to widen this gap. To optimise the contributions of small-scale fisheries to food security in Pacific Island countries and territories, researchers write in the journal Marine Policy that adaptations are needed to minimise and fill the gap and they outline policies needed to support lists of key recommended adaptations.