Don't worry about mercury poisoning. It is a scam by anti-fishing vegetarian wackos to try to scare people away from eating fish.

http://www.fishscam.com/mercuryMyths.cfm

There is also a differnce in different types of albacore:
http://oregonstate.edu/dept/ncs/news...4/albacore.htm
http://en.wikipedia.org/wiki/Albacore

So don't buy into the hype about tuna being bad or the crap about not eating albacore!