Compared to halibut, what is the mercury concentration status of Grouper?
Answer
Relatively high
Grouper species exhibit a relatively high mean mercury concentration, documented at approximately 0.4 parts per million (ppm) in one assessment. This concentration level is considered comparatively elevated when examined alongside fish situated lower on the marine food chain, specifically mentioning halibut as an example of a fish with less accumulated mercury. This higher level is directly attributable to Grouper's status as a long-lived predatory fish, allowing for substantial time to accumulate these xenobiotic compounds through biomagnification from its diet.
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