Uh. No.
There is no "cod shortage" and even if there were, this "hunt" is not for the purpose of thinning the seal population so more cod will make onto our dinner plates.
"There is no "cod shortage"
At least you are firmly convinced of your own inaccurate information, maybe you should check out the facts first. While this pertains to the North Sea, the principle remains the same. I believe the word "collapse" could be construed to indicate a "shortage".
http://www.growfish.com.au/content.asp?contentid=981 "Dramatic changes in the abundance of the plankton in the North Sea caused by global warming have led to the collapse in cod stocks, research published in the latest edition of the journal Nature shows. "