DNA barcode-based identification of commercially caught cutlassfishes (Family: Trichiuridae) with a phylogenetic assessment

► Identification protocol for commercially caught 12 cutlassfishes was developed. ► Protocol found segments of mitochondrial DNA as species-specific standard barcode. ► The barcode is effective for identifying both fresh samples and processed products. ► The method suggests a diagnostic key which also signify phylogenetic relationships. ► The method is descent in fishery management and governmental scrutiny of products.