What to do with tuna heads?

I have no idea if this is the right location for this, so mods please move as appropriate, and/or replicate through other forum topics.  

I have a bunch of heads from an albacore tuna charter trip last summer.  Originally I had intended for any not quite good enough for people food to be dog food as we are raw feeding the dog (German Shepherd).  Turns out he doesn't like the tuna heads very much.  And I've got way more than I can eat anyway.

So, what to do with them?  One thought I had was to bury some in holes dug for planting trees.  I want to get noble fir seedlings and plant them for a personal Christmas tree farm, with any not used as Christmas trees would be allowed to grow to full size.  Also wanting to get fruit trees growing.  Possibly some other types of trees.  If I do this how much tuna head is beneficial, and can I just bury it straight from the freezer, or do I have to compost it somewhat first?  How deep would the hole need to be to minimize the risk of critters digging them up?

The heads are mostly cut in half, and each half is about 1-2lbs.  

What else would be a good use for them?  Will chickens eat it?

I'm planning another trip for this August with my wife's cousin, so I'll probably have even more when I get home from that!  

Yes, if you cook the heads and make the meat easy to remove, chickens will go crazy for that.  They don't have teeth to grab hold of the flesh and tear it off the bone, but if it's cooked, they'll be able to peck small pieces of it and eat it.

I'd use those heads for crab bait.  Mmmm . . . Dungeness crab.

Or I'd throw them into the black soldier fly pod and let the little critters gnaw them down to the bone.

A lot of nice human food options for tuna heads - In Japan they just grill a half head with some salt and pick it apart with chopsticks as a $10 side dish.  Fish head soup or curry is fantastic.

I would most likely add them to a compost heap so the leachate would be humus, cooking them for food is also a good option as are the other ideas put forth already.

If you grow corn, you also have the option of doing as my ancestors did and bury one head per corn plant. To do this technique you dig a hole drop the head in and cover with soil, then you place the corn seeds on the covering soil and cover the seeds with 1/2 inch of soil.

If you want to use the bury technique for a tree go to the drip line of the tree and space head pieces around 3 feet apart in a circle around the tree, bury at least 12 inches deep but no deeper than 18 inches, this will feed the tree roots for around two years.

Redhawk

Anyone else have the fish heads song they used to play on the Dr. Demento show bouncing around in their head?

Eat them up - yum!  😉

native Americans survived many many generations by planting fish between rows of corn beans and squash. the forests of the northwest would not be anything near what they are if it were not for salmon and the bears that drag them out of the waterways and poop them out all over the place.

Eat the cheeks, they are great on the BBQ or the smoker.

I've both dug holes to bury a tuna head and put them under a pile of woodchips.