Go fish

We all know about how we're supposed to eat 4-6 ounces of fish two to three times a week, but what kind of fish? In addition to the pesky mercury thing, PCBs, red tide, and other contaminants, there's that collapsing fish population issue.

In general, fishies lower on the food chain (like herring, mackerel, and sardines) are fine. I myself am rather partial to the Chocolate Fish from New Zealand, but local fishmongers don't sell them. Pity.

If you are buying canned fish, look for logos bearing the Marine Stewardship Council logo, which certifies that the fish was caught using sustainable pole-and-line methods.

Anyway, if you want fancier fish, check out these three great resources:

• Environment Defense Fund Seafood Selector tells you which fish is bad for the environment and you. Well-organized info.
  
• Monterey Bay Aquarium Seafood Watch shows you which ones you should avoid and provides alternatives.
• Blue Ocean Institute Seafood Guide is not stingy with details and tells you exactly why the fish is good or bad for you. It comes with scores and color coding. Great site for nerdier fish lovers.