Tidal asymmetry and flood/ebb dominance around the Yeomha channel in the Han River Estuary, South Korea

2013 ◽  
Vol 165 ◽  
pp. 1242-1246 ◽  
Author(s):  
Byung Yoon ◽  
Seung-Buhm Woo
Keyword(s):  
South Korea ◽  
River Estuary ◽  
Tidal Asymmetry ◽  
Han River ◽  
Han River Estuary

scholarly journals Morphological and molecular study on Yininemertes pratensis (Nemertea, Pilidiophora, Heteronemertea) from the Han River Estuary, South Korea, and its phylogenetic position within the family Lineidae

ZooKeys ◽  
2019 ◽  
Vol 852 ◽  
pp. 31-51
Author(s):  
Taeseo Park ◽  
Sang-Hwa Lee ◽  
Shi-Chun Sun ◽  
Hiroshi Kajihara
Keyword(s):  
South Korea ◽  
River Estuary ◽  
Morphological Characteristics ◽  
River Mouth ◽  
Phylogenetic Position ◽  
Close Relative ◽  
28S Rrna ◽  
Gene Markers ◽  
Han River ◽  
Han River Estuary

Outbreaks of ribbon worms observed in 2013, 2015, and 2017–2019 in the Han River Estuary, South Korea, have caused damage to local glass-eel fisheries. The Han River ribbon worms have been identified as Yininemertespratensis (Sun & Lu, 1998) based on not only morphological characteristics compared with the holotype and paratype specimens, but also DNA sequence comparison with topotypes freshly collected near the Yangtze River mouth, China. Using sequences of six gene markers (18S rRNA, 28S rRNA, histone H3, histone H4, 16S rRNA, and COI), the phylogenetic position of Y.pratensis was inferred among other heteronemerteans based on their sequences obtained from public databases. This analysis firmly placed Y.pratensis as a close relative to Apatronemertesalbimaculosa Wilfert & Gibson, 1974, which has been reported from aquarium tanks containing tropical freshwater plants in various parts of the world as well as a wild environment in Panama.

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