Should you eat fish during pregnancy?

My Bubby and I love Japanese food, and one of the things we both love to do is eat out, or pig out on tuna or salmon sashimi. Me? I simply love fish. Growing up in a Chinese household, fish is part of our weekly menu. But when I got pregnant, I read in one of the books to avoid eating seafood that have high mercury levels, especially raw fish. These usually included the bigger fish. But then, being stubborn that I was, I didn’t think there was anything wrong in eating fish that I have already been used to eating such as salmon, tuna, and blue marlin. And yes, I still ate raw fish such as sashimi but I toned it down a bit, and didn’t eat as much as I did when I wasn’t pregnant. I read in one of the forums online that not eating fish during pregnancy may cause depression. I didn’t experience any depression since I still ate fish at least once a week. And when I researched online, I found in the healthy tuna website that there are benefits to eating fish while pregnant. Scientific studies show that fish, most especially tuna (whether those that are canned or pouched), contain essential fatty acids that are called DHA Omega-3 which helps in the development of the baby’s brain and eyes. So don’t abandon eating fish during the whole course of pregnancy. We wouldn’t want to deprive our babies of good vision and big brains, would we?