Salmon imprinting and homing: fascinating summary of the original research

[Mike]

The imprinting summary starts at paragraph 7. For those with a general scientific interest, you may enjoy reading the additional info on Arthur Hasler, as he was quite the figure in limnology, aquatic ecology, fisheries biology and so on.


http://haslerhistory.blogspot.com/2016_08_01_archive.html

 

[Dave_W]

I have not read this article yet, but homing is also apparently a key part of grayling fry development too.

There is yet another attempt to re-introduce them to Michigan. Previous attempts to stock fingerlings may have failed due to a lack of understanding of homing imprint.

 

[salmonoid]

Definitely an interesting read. I had always heard that catching a fish in a pool could sometimes chemically alert other fish in the pool that a predator was nearby; never knew any real science behind it, but apparently the Schreckstoff reaction is it. Learning something new today

Regarding the imprinting, it makes me wonder what happens to fish when we drastically alter the smell of a stream somehow...