The latest episode of CBC Radio's Quirks and Quarks had a very excellent segment on this odd creature (amongst other topics). It's a fantastic weekly science show available as a podcast.
https://www.cbc.ca/radio/quirks/sep-28-plastic-we-need-to-un...
Sea robins are the bane of my existence. I just try to make an honest living [0] catching flounder and (hopefully!) stripers and these bums keep eating the bait and making their stupid noises. AT LEAST FIGHT WHEN I HAVE YOU ON THE LINE YOU LAZY FISH
[0] Not really my living don't worry...
I heard that they're tasty. Or at least that's what the dude in the boat passing by said when I held one up and yelled, "do you know what this is?"
They are not bad to eat, but not worth the effort to clean. Very little usable meat in the tail, and there is a double row of bones you have to filet out. And the meat is kind of translucent green until you cook it, then it turns white. But do other fish like lingcod.