�y��vlog

Using otolith microchemistry -- the measuring of the chemical composition of the layers of bone that grow in a fish's ear as it matures -- Pease determined approximately where each snook had lived during its lifetime.

The third option is to utilize microchemistry.

This was shipped back to Chicago for further study by Seaborg’s team, which shortly would abandon its techniques of microchemistry and work with quantities they could see—but which required new safety precautions to protect against breathing or ingesting their “fiendishly toxic” godchild.

They can tell where it came from- fry or fingerling stock or native -with microchemistry.

"I wish I had your know-how in microchemistry."