As a neophyte in Kumamoto, I scavenged oysters from the crags of Minamata with my wife, both of us greedily slopping them down - and then learned that maybe that was not a good idea. My hometown of Orange County has a similar, era-spanning issue with dioxin having been dumped in barrels in the sea. Most know that Johnny Depp (whatever your opinion of him) has starred in the eponymous movie. Kumanichi has a writeup about it at the link - but, seriously?! How many cameras do you need?! - I always got by with one, even back in the days of 35mm film. - William https://kumanichi.com/news/id203675