Publications by authors named "Ngan Trong Tran"
Molecular data from samples encompassing 22 nominal species of indicate that the species-level diversity in the genus has been vastly overestimated, likely due to inadequate taxon and geographic sampling and reliance on morphological characters that vary intra-specifically. The latter includes discrete mouth morphologies related to alternate feeding strategies (ecomorphs) within populations. One new species is described, Hoàng, Phạm & Trần, , and 17 synonyms of six valid species names of , , , , , , and , are recognised.
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- Researchers studied the migration pathways of the endangered Mekong River catfish, Pangasius krempfi, by analyzing strontium isotope ratios and trace element concentrations in water and fish otoliths to determine their natal origins.
- The study found that while trace element concentrations did not provide clear distinctions for migration routes, strontium isotopes successfully differentiated between the mainstream, tributaries, and distributaries of the Mekong.
- It was revealed that P. krempfi has three main groups that hatch in freshwater and migrate to the Mekong Delta, but their spawning habitats face threats from habitat changes and hydropower dams, emphasizing the need for collaborative conservation efforts among countries along the river.
Two new species and two new basin records of mahseers in the genera Tor and Neolissochilus are described from the upper Krong No and middle Đồng Nai drainages of the Langbiang Plateau in southern Vietnam. These new species and new records are known from streams and rivers in montane mixed pine and evergreen forests between 140 and 1112 m. Their populations are isolated in the Sre Pok River of the Mekong basin, the middle of the Đồng Nai basin, and the An Lão River.
View Article and Find Full Text PDFTwo new species of large shovel-jaw carps in the genus Onychostoma are described from the upper Krong No and middle Dong Nai drainages of the Langbiang Plateau in southern Vietnam. These new species are known from streams in montane mixed pine and evergreen forests between 140 and 1112 m. Their populations are isolated in the headwaters of the upper Sre Pok River of the Mekong basin and in the middle of the Dong Nai basin.
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