Mercury chart on 51 species of fish

For curious mind want to know 

Very interesting. I wonder where the samples were taken, and what impact that has on the results? 

I've kinda always thought that migratory fish probably vary greatly in their mercury levels. I think it depends on how old they are, where they've been, and what they've eaten - but I've not seen a lot of information about that.

What do the different color bands mean?  How do I interpret this data?

-Allen

What do the different color bands mean?  How do I interpret this data?

-Allen

The higher the "mean" the more mercury accumulated.   Of course this data is not "perfect"  due to the different sample size but it gives you the idea about mercury accumulated in these species.

What do the different color bands mean?  How do I interpret this data?

-Allen

The higher the "mean" the more mercury accumulated.   Of course this data is not "perfect"  due to the different sample size but it gives you the idea about mercury accumulated in these species.

I get that part, the more mercury accumulated.  At what color does it go from ok to bad?  And what is the units of measurement?

-Allen

I've kinda always thought that migratory fish probably vary greatly in their mercury levels. I think it depends on how old they are, where they've been, and what they've eaten - but I've not seen a lot of information about that.

Absolutely. Take albacore tuna as an example. They only include "canned albacore" on the table. Most of the canned albacore we see in stores are larger fish caught in the South Pacific. Troll-caught albacore off our West Coast are typically smaller fish, with much lower mercury levels compared to their 70-80 lb adult versions in the South Pacific.

https://today.oregonstate.edu/archives/2004/aug/local-albacore-found-be-mercury-safe

Not surprising to see swordfish and sharks near the top of the list.

Weird science like all the other stuff. Just like everything else. True? not true? source of data? just don't eat the fish from Clearlake as that was the location of the mercury mines

For curious mind want to know 

Was thinking of putting together a similar chart for Norcal species commonly caught by kayak! We have the survey data...

A little simpler pictorial.

What do the different color bands mean?  How do I interpret this data?

-Allen

The higher the "mean" the more mercury accumulated.   Of course this data is not "perfect"  due to the different sample size but it gives you the idea about mercury accumulated in these species.

I get that part, the more mercury accumulated.  At what color does it go from ok to bad?  And what is the units of measurement?

-Allen

I believe the unit of measurement is mg.