Phylogeographic Connectivity of Osteochilus spilurus (Cyprinidae) from Bangka, Belitung, and Kalimantan Islands Using DNA Barcoding | ||
| Egyptian Journal of Aquatic Biology and Fisheries | ||
| Volume 29, Issue 5, September and October 2025, Pages 1145-1159 PDF (430.65 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejabf.2025.421309.6529 | ||
| Authors | ||
| ardiansyah kurniawan* 1; Anik Martinah Hariati2; Dewa Gede Raka Wiadnya3; Andi Kurniawan4; Nia Kurniawan5; Wahyu Endra Kusuma2 | ||
| 1Universitas Bangka Belitung | ||
| 2Department of Aquaculture, Faculty of Fisheries and Marine Science, Universitas Brawijaya | ||
| 3Universitas Brawiajaya | ||
| 4Department of Aquatic Resources Management, University of Brawijaya | ||
| 5Department of Biology, Faculty of Mathematics and Natural Sciences, Brawijaya University | ||
| Abstract | ||
| Osteochilus spilurus (Bleeker, 1851), with a vast distribution in Sundaland, is one of the least utilized freshwater species. The lack of interest in this species has resulted in restricted human-caused dispersal and has offered the opportunity for a precise phylogeographic study. Fish samples were caught from six rivers on the islands of Bangka, Belitung, and Kalimantan. Fish identification was conducted using DNA barcoding of cytochrome oxidase 1 with Fish-F1 and Fish-R1 primers. Twenty-five 655 bp nucleotide sequences from this research are recorded in NCBI and represent the first such records. Bangka-Belitung and Kalimantan samples form intraspecific relationships within each region but are separated into different clades between the two regions. This separation suggests that O. spilurus may represent a cryptic species due to historical changes in the formation of the Karimata Strait between the two regions. O. spilurus has the potential to be used as a distribution and phylogeographic model for freshwater fish in Sundaland. | ||
| Keywords | ||
| Osteochilus spilurus; Sundaland; Phylogeographic; co1 | ||
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