I highly suggest you get tested for heavy metals, you can't eat fish more than a couple times per week without getting toxic levels of mercury and other heavy metals, pollution sucks...
https://youtu.be/Fx5Z6CuSKt4
I've seen that interview; kept it in the back of my head. But Jason was eating all kinds of seafood which was known to have higher amounts of mercury.
Salmon doesn't have those amounts and is one of the safer ones.
"As a physician, I recommend that people eat fish,” says Dr. Oken. Choose different types, and stay away from high-mercury species. If you eat canned tuna, look for chunk light, which is lower in mercury than other varieties.
Don’t be overly concerned about salmon; the increased mercury level attributed to salmon consumption was quite small, and it’s possible that salmon eaters also ate more of the other high-mercury fish that contributed to the elevated level, says Dr. Oken. The table below, adapted from a study she led to promote healthy fish consumption in pregnant women, can help you make choices. It features low-mercury varieties and includes how much to eat to get suggested levels of omega-3 fatty acids."
(
https://www.health.harvard.edu/blog/make-smart-seafood-choices-minimize-mercury-intake-201404307130)
Not that any of this is taking into consideration how much bodybuilders eat. I know Evan Centopani eats a LOT of fish in both off season and pre-contest, but he sticks to lower mercury ones as well. Dave Palumbo did this during his bodybuilding days as well.
The caveat is that mercury levels can be elevated up to a certain point, and you wouldn't have many symptoms. Once you get to a certain point, it's basically a point of no return, and you will need to eliminate seafood and hop on chelation therapy if your physician feels you need it.
Still though, scary stuff. I'm going out to buy more chicken and eye round beef today