The numbers of farmed aquatic animals reared and killed for food is increasing annually, as aquaculture rapidly expands. Since 1990, farmed finfish numbers killed annually have increased nine-fold, to an estimated 124 billion (1.24 x 10¹¹, range 78-171 billion) in 2019. Updated finfish estimates for 2020 to 2022 give respectively 126 billion (range 79-172 billion), 130 billion (range 84-177 billion) and 133 billion (range 86-181 billion).

Estimated numbers of farmed crustaceans killed in 2020 to 2022 were respectively 550 billion (range 280-830 billion), 590 billion (range 290-890 billion) and 630 billion (range 310-950 billion).

These estimates, which are available by species and country via the above links, do not represent total numbers farmed, due to mortalities during rearing and non-food production.