DNA barcoding using the mtDNA COI gene is a powerful tool
for identifying fish species when there is a lack of morphological
data. This method has been broadly used for taxonomy, species
delimitation, population and phylogeographic analyses, egg and
larvae detection, and industrial applications [25,19,26,27]. It could
also provide useful information on the phylogenetic relationships
of sharks [28]. The non-monophyly of Carcharhiniformes has
been observed with a different combination of molecular marke