Succession phenomenon of two dinoflagellates Cochlodinium polykrikoides and Alexandrium affine in the southern sea of Korea in summer of 2017

Title
Succession phenomenon of two dinoflagellates Cochlodinium polykrikoides and Alexandrium affine in the southern sea of Korea in summer of 2017
Author(s)
임영균; 백승호; 김진호; 박범수
KIOST Author(s)
Lim, Young kyun(임영균)Baek, Seung Ho(백승호)Park, Bum Soo(박범수)
Publication Year
2019-10-21
Abstract
We investigated the succession patterns of both HAB species in the southern sea of Korea and performed a bioassay using C. polykrikoides and A. affine to evaluate their competitive relationship. From June to August, the surface water temperature increased from 17.4°C to 27.9°C, the salinity decreased from 34.2 to 30.8. C. polykrikoides dominated in July however, A. affine reached bloom levels in August. The growth experiments were carried out at six water temperature (15,20, 22.5, 25, 27.5 and 30°C) and six salinity (20, 24, 26, 28, 30 and 32) levels.
At 25°C, the maximum growth rate for C. polykrikoides (0.31 day-1) was measured at a salinity of 32, and for A. affine (0.43 day-1) at a salinity of 30. C. polykrikoides cells died within 2 days at 30°C, while A. affine maintained high growth rates (0.35
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/22233
Bibliographic Citation
PICES-2019, pp.216, 2019
Publisher
PICES
Type
Conference
Language
English
Publisher
PICES
Related Researcher
Research Interests

Molecular Ecology,Ecological Interaction between bacteria and phytoplankton,Harmful Algal Blooms (HABs),분자생태학,생태적 상호관계(박테리아-식물플랑크톤),유해조류대발생

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