Morphology and distribution of some marine diatoms, Family Rhizosoleniaceae, in Korean coastal waters: a genus Rhizosolenia 1

doi:2010.25.4.173

Algae > Volume 25(4); 2010 > Article

Algae 2010;25(4): 173-182. doi: https://doi.org/10.4490/algae.2010.25.4.173

Suk Min Yun¹,a and Jin Hwan Lee¹^,*

¹Department of Biology, Sangmyung University, Seoul 110-743, Korea

*Corresponding Author

Email: jhlee@smu.ac.kr

ABSTRACT

Four Rhizosolenia species of marine diatom were appeared at 30 sites in Korean coastal waters from September 2008 to February 2010. The cell shape, diameter, length of pervalvar axis, external process, segment and areolation characters of the species were examined. All four species were cylindrically shaped, but the external processes differed. Segment striations were regularly straight, and velum showed hexagonal, circular pore and narrow slit. Rhizosolenia formosa and R. hyalina were only occurred in September 2008 from the Yellow Sea, R. bergonii was appeared throughout the year from Korea Strait and Yangyang coasts, and R. setigera was abundantly showed in all seasons from all site. R. formosa is a newly recorded species in Korean coastal waters.

Key words: diagnosis; distribution; Korean waters; morphology; Rhizosolenia; scanning electron microscopy