DNA barcoding South China Sea fishes

Abstract

We have determined 222 DNA barcode sequences of 95 fish species in 86 genera of 69 families from 15 orders. Fish were captured by trawl from two important fisheries regions in South China Sea: Spratly Islands (Nansha Islands) and Beibu Gulf. The average genetic distances between intraspecies were about 60-fold less than those of interspecies within different taxonomic levels, as Kimura two-parameter genetic distances averaged 17.260% among congeners, 20.097% among genus, and only 0.317% for intraspecific individuals. There were a few examples of deep divergence within species, suggesting the need for further taxonomic work, and a few examples of closely allied species, perhaps reflecting introgressive hybridization. The results provide further evidence for the reliability and accessibility of DNA barcodes for marine fish identification, and also highlight their effectiveness for flagging cases needing taxonomical reexamination.

DNA barcodes of the native ray‐finned fishes in Taiwan

“…; Wang et al . ), but it is similar to that of Indian freshwater fishes (Chakraborty & Ghosh ). However, our value could be an overestimate or underestimate for the following reasons.…”

“…; Wang et al . ; Ward et al . ; Zhang & Hanner ), and almost one‐third (11 227 species) of all described fishes have now been barcoded (FISH‐BOL 2016).…”

Diagnostic description and geographic distribution of four new cryptic species of the blue-spotted maskray species complex (Myliobatoidei: Dasyatidae; Neotrygon spp.) based on DNA sequences

“…Neotrygon varidens (Garman, 1885). Neotrygon varidens (Last et al, 2016); Neotrygon kuhlii clade IV (Arlyza et al, 2013a;Borsa et al, 2016a); Neotrygon kuhlii clade 1 (Puckridge et al, 2013); clade Neotrygon kuhlii 2 of Naylor et al 2012; Neotrygon kuhlii (Ward et al, 2008;Cerutti-Pereyra et al, 2012;Wang et al, 2012;Arlyza et al, 2013bChen et al, 2014); Dasybatus varidens, original combination (Garman, 1885). Also BIN number BOLD:ABZ6130 in BOLD.…”

Genomic Approaches in Marine Biodiversity and Aquaculture

“…The user-friendliness of DNA barcodes is also fi nding many practical applications in developing countries (Cawthorn et al, 2011;Lakra et al, 2011;Zhang & Hanner., 2012;Asgharian et al, 2011;Wang et al, 2012;de Carvalho et al, 2011;Weigt et al, 2012), which generally lack suffi cient means (financial support, research materials, scientific profi ciency and experienced personnel) to conduct their own research and surveillance activities in marine biodiversity, fi sheries management and conservation.…”