Slimy and spreading fast. Shellfish farms face biofouling 'invasion' | CBC News

It probably says something about me that my first thought, even before reading the article, was, "Is it edible?"

Though, to kill my own joke, that first thought wasn't actually about eating the thing itself, more wondering if it ruined the 'crop'. (The answer is "No, it just causes more work for the farmers." Edit: And also the extra weight is causing stress to their equipment.) It was my second thought to wonder whether we could eat the thing itself. And...

Tunicates are a sack full of organs and water

...possibly, but I don't think anyone would want to.