So long sushi?

Last night, Dave proclaimed that he would never eat fish ever again.  I've heard him say it before, but I think there was something about David Suzuki's somber voice on last night's episode of The Nature of Things that must have really affected him.  I'd be lying if I said it didn't affect me too... I just think my attachment to sushi is far greater than Dave's is, and the idea of completely cutting all fish out of my diet scares the bejesus out of me.  I love my sushi.  I mean, I really LOVE it.  My 9-month pregnancy-induced sushi hiatus was very difficult for me, and I'd rather not put myself through that again.  I will admit, however, that with every mention of the dying ocean and the possibility that 40 years from now not a single fish will be left in the vast, vast sea, and the fact that this would gradually and irreversably destroy pretty much all life on earth, I get one step closer to becoming a seafood-shunning activist.  If you really think about it, maybe it makes perfect sense that human beings ought to keep their fishing nets the hell out of the ocean.  It really is akin to taking our big blind hands and reaching deep into something that we know very little about, only to steal massive fistfuls of delicious things that may or may not disappear forever and change the face of the earth before we've even had our fill.  We're not a part of that ecosystem, so why do we eat from it? On the other hand, are we even a part of our own ecosystem anymore (besides being a menace to it)? It's really starting to seem that vegetarianism might be in the cards for me one day soon...