Fish
 

It seems Minnesota has a lot of very old fish...

I sure hope it was released.
"Hey boys, I got caught again. Fourth time, I think. This guy was only 30 years old."

It was not, otherwise they couldn't cut in half to count the rings.

My bad, I forgot the link.

Damn, that's an old carp. ;)

Those are elaborate otoliths.
The ones I've found in otter scat look like little flat pearls.

I automatically worry about some asshole catching the last one, but bigmouth buffalo are in the conservation category of least concern.
Four feet and 65 pounds.

If you are fishing and happen to hook a Salema Porgy, Sarpa salpa, Dreamfish, do not eat it.
It'is Ichthyoallyeinotoxic, so pack it in ice and send it to me.
Males are 6 to 12 inches and females 12 to 18 inches with gold stripes.

https://www.ducamar.com/salema-sarpa

Better invite some friends, that is about 50 pounds.

With males 6 to 12 inches and females 12 to 18 inches and a body described as, "Body relatively slender with 10 golden longitudinal stripes", there has to be a bunch of them in a 20 kg (44 lb) box.