About 90 million tonnes of wild-catch seafood are produced globally every year. After a rapid growth period that still continues, this is now exceeded by freshwater and marine fish farming – aquaculture – which deliver over 100 million tonnes annually. The volume in live-weight of global aquaculture production has tripled since 2000. The largest component is freshwater aquaculture, and the second largest is algae – particularly seaweeds and kelp. There is no doubt that aquaculture is of ever increasing significance in the world’s supply of sustainable food, and in reaching the goals not only of SDG 14 but also SDG 2 (greatly reduced hunger and improved nutrition). Despite improved environmental performance of aquaculture, there are growing challenges with pathogen management, pollution, climate change and also the need to move away from fishmeal and fish oil in developing alternative sources of feed, such as plants and insects. We are pleased to present here some of the recent highlights in our related content.