Shark fin soup has erroneously been associated with positive heath benefits. However there is no accepted scientific evidence that shark fin provides any medicinal or health benefit. In fact studies show that shark has among the highest levels of mercury and other dangerous toxins found in fish.
Why sharks can be so toxic: bioaccumulation and biomagnification
Marine organisms absorb and cannot excrete some toxins and heavy metals that enter the oceans from pollutants. These toxins accumulate in a fish’s body as it eats other fish, known as "bioaccumulation1," and travel through the food web from prey to predator, continuing to increase in density in a process called "biomagnification2."
At the top of the food chain are the ‘apex’ predators: sharks. Some shark species can live for 50 years or more, consuming many toxin-laden fish and storing those toxins in their bodies throughout their lifetime. When we eat shark fin soup, we are consuming their toxins, too.
Shark fin soup has erroneously been associated with positive heath benefits. However there is no accepted scientific evidence that shark fin provides any medicinal or health benefit. In fact studies show that shark has among the highest levels of mercury and other dangerous toxins found in fish.Why sharks can be so toxic: bioaccumulation and biomagnificationMarine organisms absorb and cannot excrete some toxins and heavy metals that enter the oceans from pollutants. These toxins accumulate in a fish’s body as it eats other fish, known as "bioaccumulation1," and travel through the food web from prey to predator, continuing to increase in density in a process called "biomagnification2."At the top of the food chain are the ‘apex’ predators: sharks. Some shark species can live for 50 years or more, consuming many toxin-laden fish and storing those toxins in their bodies throughout their lifetime. When we eat shark fin soup, we are consuming their toxins, too.
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