In Salem, MA there is a company called Patriot Seafood. They haul in a catch each day of Dogfish during the season...sometimes called Cape Shark because it looks like a small shark.
They have been trying to get restaurants in the area to serve it. It is firm, white and delicious fish. It can't be over-fished because in the Boston Harbor area they are like locusts.
To date they have only gotten it to catch on at a couple of restaurants in the area. Mostly because customers won't eat something called Dogfish. Uneducated customers, I should say.
I call ahead, put in an order of 10 lbs. and they let me know when it will be in and can be picked up. At 2 bucks per pound it's a real bargain. And it is delicious. Great for fish 'n' chips.
Dogfish have mildly toxic spines I think in their dorsal fins. Is that easy to remove and does it do anything to the meat if not done properly?
Many fish n' chips are dogfish. I catch one now and then when fluke fishing, but you have to handle them right or they get a slight ammonia odor to them. If you gut them and soak them in ice water right away they are delicious.