Alaska currently has one shellfish hatchery in the state, but the industry is expected to expand to more than $1 billion in the next 30 years as demand for seafood increases. A new study, published in PLOS ONE, is a collaboration between NOAA/PMEL, the University of Alaska Fairbanks and the Alutiiq Pride Shellfish Hatchery in Seward, AK. This study is the first continuous monitoring of seawater conditions at an Alaska shellfish hatchery and it illustrates the potential vulnerability to ocean acidification in this industry. Under current conditions there is a 5-month window of favorable growing conditions for shellfish each year, but this window will shrink and may ultimately close as early as 2040 as water quality declines due to carbon dioxide. Hatcheries and natural shellfish populations will both be vulnerable to these declining growth conditions.