![]() 8, 9) however, few studies have reported its use in the taxonomy, phylogeny, specimen-based identification, or to enrich species listing of marine fishes. This method has been increasingly used for identification and authentication of component species in commercial fishery products to ensure traceability and food safety (e.g. In the Philippines, DNA barcoding has remained an underutilized tool in ichthyofaunal studies. Accurate species identification is vital to ensure the successful management of fish stocks and will bring insight into processes maintaining marine biodiversity 7. 4, 5, 6), the increasing utilization of DNA barcoding has expanded its scope from identifying species of conservation concern to revealing previously unrecognized cryptic species and accurately mapping the distribution ranges of known species. 3) and extending to more recent ones (e.g. Starting from earlier Australian studies (e.g. DNA barcode reference libraries for bony fishes have been established in various geographic regions, aiding in the enrichment of local fish species lists. This can be attributed to the ease of using molecular markers (e.g., cytochrome oxidase subunit I, COI cytochrome b 12S ribosomal RNA) and the reduced reliance on taxonomic keys, which can be challenging for non-taxonomists 2. The DNA-based identification method has become increasingly popular in various taxa 1. This first comprehensive DNA barcoding survey of Cebu fishes can facilitate further taxonomic research as well as the conservation and management of fisheries in the Philippines. Only 20 taxa could not be identified to the species level due to the difficulty in morphological examinations, absence of matched reference sequences in online databases, and/or problematic species awaiting further studies. Twelve species from 11 families are newly recorded in the Philippine waters, among which 7 species are deep-sea inhabitants, while 3 species have expanded their distribution range. Most speciose families are coral reef or reef-related shallow-water species. A total of 1721 specimens were collected from 18 fish markets and landing sites around the province, in which 538 specimens were sequenced belonging to 393 species from 229 genera, 86 families, and 37 orders. A morphology-based barcoding library of market teleost fishes (Teleostei) in Cebu is built based on cytochrome c oxidase subunit I ( COI) sequences and voucher specimens which aimed to establish a reliable reference of frequently traded fishes in the province, a biodiversity hotspot at the center of the Philippine archipelago. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |