This species is not as vulnerable to human induced change as most freshwater fish.
The record of human induced changes in environments is longer in New Guinea than in most places.
Many human induced changes are the cause for such a large population decline.
"Nuclear reaction" is a term implying an induced change in a nuclide, and thus it does not apply to any type of radioactive decay (which by definition is a spontaneous process).
For non-symmetric media (e.g. liquids), this induced change of susceptibility produces a change in refractive index in the direction of the electric field:
However, this does not mean the Brook Stickleback is immune from human induced changes to the ecosystem dynamic.
The effect of human induced changes on this life history is unknown at this time.
Thus at bottom, it is very difficult to separate human induced change from natural change, certainly not with the confidence we all seek.
Sampling should be done across the entire native range to document its abundance in different locations and human induced changes.
As the induced change in polarity is less than the original polarity, the inductive effect rapidly dies out, and is significant only over a short distance.