When looking at my own diet, I would say that mine do not fall into these guidelines. The fish that I primarily eat are salmon and tuna. I know that tuna can be very contaminated with mercury, and salmon can vary depending on where it is caught from. I eat a lot of shrimp, but not much crab, so this is more inline. My first step towards these guidelines is that I must reduce my tuna intake, and possibly replace tuna with a lower contaminated fish, like trout. In terms of the salmon that I eat, I should look up the companies that provide the salmon that I purchase from the grocery store. When looking them up, I will search for whether the salmon is wild or farm caught, and from what region the salmon is from (Atlantic or North Pacific. In general I should be more cautious about the food products that I am purchasing, but I could also share this information that I have learned with my friends and family who may want to be more cautious about the seafood that they are eating as well.
I attached an image from seafoodwatch.org, which provides information from fishing advisories: