The highest concentration
of Cd in this study was found in the mako shark liver.
Similarly, Núñez-Nogueira (2005) found the highest concentration
of Cd in liver (3.08 ± 5.23 μg g−1) compared with muscle
(0.34 ± 0.10 μg g−1), gills (1.99 ± 0.98 μg g−1) and brain (2.14 ±
1.59 μg g−1) of the dogfish R. terraenovae in the Gulf of Mexico. In
this study, total (organic and inorganic) As concentration is reported.
However, it is well-known that most As found in fish is organic As,
which is the less toxic form. In the literature, the percentage of inorganic
As in fish has been reported to be between 0.02% and 11%