Water, Vol. 18, Pages 303: Morphology and Ecology of Newly Recorded Diatom Taxa from the Nakdonggang River (South Korea) Revealed by Scanning Electron Microscopy

Water doi: 10.3390/w18030303

Authors:
Sang Deuk Lee
Mirye Park
Daeryul Kwon

This study reports 10 freshwater diatom taxa newly recorded from the Nakdonggang River Basin, South Korea, based on samples collected in April 2023. Species identification was conducted using scanning electron microscopy (SEM), which enabled detailed observation of valve ultrastructures critical for taxonomic resolution. The newly documented taxa include Achnanthidium druartii, A. peetersianum, Discocyclus hubeianus, Geissleria cascadensis, Gomphonella perolivaceoides, Navicula venetiformis, Punctastriata glubokoensis, P. mimetica, Rhoicosphenia californica, and Sellaphora nigri. Environmental parameters (temperature, pH, conductivity, dissolved oxygen, turbidity) were recorded to characterize habitats. As these taxa are not listed in the National List of Species of Korea, our findings expand the country’s diatom inventory and emphasize the importance of SEM-based surveys in documenting biodiversity and biogeographic distributions.

Source link

Sang Deuk Lee www.mdpi.com