Difference of interpretation of dynamics of diatoms community based on the morphological and metagenomic analyses in Tongyeong coast

Title
Difference of interpretation of dynamics of diatoms community based on the morphological and metagenomic analyses in Tongyeong coast
Author(s)
Park, Joon Sang; Kim, Hyun Jung; Kang, Junsu; Lee, Taek Kyun; Jung, Seung Won
KIOST Author(s)
Park, Joon Sang(박준상)Kim, Hyun Jung(김현정)null강준수Lee, Taek Kyun(이택견)Jung, Seung Won(정승원)
Alternative Author(s)
박준상; 김현정; 강준수; 이택견; 정승원
Publication Year
2020-11-06
Abstract
Diatom identification based on their morphology often leads to the misinferring of their ecological and biogeochemical roles, because it is difficult to positively identify the species when the presence of cryptic or nano-sized diatoms. Recently, next-generation sequencing (NGS) methods provide a chance to overcome the limitations from morphological analysis. We here examined the long-term dynamics of diatom communities at the site of Tongyeong coast during 45 months using a combination of LM and NGS methods. The number of species in each month is almost always higher in NGS than LM, while the accumulated total species number during 45 months are higher in LM than NGS. NGS method interestingly reproduce the diatom dynamics following Margalef’s mandala in a typical three stages during winter to spring: occurrence of nanoplanktonic diatoms such as Minidiscus comicus, Brockmaniella brockmannii and Skeletonema costatum in winter (December to February), following medium-sized Chaetoceros contortus, C. constrictus and C. diadema in spring (March to April), finally Leptocylindrus convexus and Cerataulina pelagica in late spring (May). While the seasonal dynamics of diatom did not present in LM method. Although in LM certain tendency of diatom dynamics are not able to monitored, it is able to detect the episodic event of diatom blooms such as Pseudo-nitzschia in late summer or autumn. With the combination of LM and NGS results, we illustrate and summarize the seasonal cycles of diatom assemblages in coastal water based on modified Grime’s C-S-R model.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/37616
Bibliographic Citation
2020 한국해양학회 추계학술발표대회, 2020
Publisher
한국해양학회
Type
Conference
Language
Korean
Publisher
한국해양학회
Related Researcher
Research Interests

Marine biology,Taxonomy,Diatom,해양생물학,생물분류학,규조류

Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse