It turns out this is how China feeds the masses of seafood

https://chinaworldleader.quora.com/https-www-quora-com-Does-China-produce-enough-food-to-feed-its-populace-or-does-it-have-to-import-food-answer-Janus-Do?ch=17&oid=54033510&share=47bc7d34&srid=h3gdGt&target_type=post