The non-native oyster was eaten seven times as fast as our native oyster. That was true for all sizes.

It doesn't mean the oyster couldn't become established; it means that there won't be a lot of adults to reproduce,

It doesn't mean the oyster couldn't become established; it means that there won't be a lot of adults to reproduce.

Oysters speaking doesn't give a pearl.

Somebody hits me, I'm going to hit him back. Even if it does look like he hasn't eaten in a while.

Oysters speaking doesn't give a pearl. (Les huîtres qui parlent - N'ont pas de perle)