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Issue: Vol. 629 No. 3: 7 Dec. 2023
Type: Article
Published: 2023-12-07
DOI: 10.11646/phytotaxa.629.3.1
Page range: 187-196
Abstract views: 124
PDF downloaded: 158

Giffenia koreana sp. nov. (Bacillariophyta): A newly identified epipelic diatom in the tidal flat sediments of Suncheonman Bay, extant for over 1,400 Years

Protist Research Team; Microbial Research Department; Nakdonggang National Institute of Biological Resources (NNIBR); 137 Donam 2-gil; Sangju-si; 37182; Republic of Korea.
Protist Research Team; Microbial Research Department; Nakdonggang National Institute of Biological Resources (NNIBR); 137 Donam 2-gil; Sangju-si; 37182; Republic of Korea.
Quaternary Environment Research Center; Climate Change Response Division; Korea Institute of Geoscience and Mineral Resources (KIGAM); 124 Gwahak-ro; Yuseong-gu; Daejeon 34132; Republic of Korea.
Active Tectonics Research Center; Geologic Hazards Division; Korea Institute of Geoscience and Mineral Resources (KIGAM); 124 Gwahak-ro; Yuseong-gu; Daejeon 34132; Republic of Korea.
Department of Suncheon Bay Preservation; Suncheon-si; Jeollanam-do; 58027; Republic of Korea.
diatoms Giffenia novel species wetland Algae

Abstract

An unknown Giffenia taxon was sampled from the tidal flat sediment of Suncheonman Bay in the Republic of Korea on June 11, 2018. To identify the species, a detailed analysis using light and electron microscopy and a literature review were conducted. The important morphological characteristics—thin lip-shaped sternum, elongated alveoli, and eccentric raphe slit—were found in the species. These features are not present in previously described Giffenia taxa (Giffenia cocconeiformis). The new diatom species is characterized by (1) a slightly undulated valve face, (2) a lip-shaped sternum with a slightly rough surface, (3) numerous elongated alveoli on the valve face, and (4) an eccentric raphe slit. We propose Giffenia koreana sp. nov. as a new epipelic diatom taxon.

 

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