https://en.wikipedia.org/wiki/Pacific_oyster#/media/File:Oyster_pits_in_Yerseke_Netherlands_01.jpg
https://nyadagbladet.se/inrikes/svenska-badgaster-skar-upp-fotterna-pa-invasiva-ostron/attachment/olympus-digital-camera-132/
https://en.wikipedia.org/wiki/Pacific_oyster#/media/File:Oyster_pits_in_Yerseke_Netherlands_01.jpg