Fish DNA barcoding is a genetic method used to identify and classify fish species based on a short, standardized region of their DNA. This technique leverages a specific gene, often a segment of the mitochondrial cytochrome c oxidase subunit I (COI) gene, to create a "bar code" unique to each species. The primary goal of fish DNA barcoding is to provide a reliable and efficient means of species identification, especially for those that might be difficult to distinguish morphologically.
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