Temporal and Spatial Distribution of the Toxic Epiphytic Dinoflagellate Ostreopsis cf. ovata in the Coastal Waters off Jeju Island, Korea

Jaeyeon Park, Jinik Hwang, Jun-Ho Hyung and Eun Young Yoon
Additional contact information
Jaeyeon Park: Advanced Institute of Convergence Technology, Suwon 16229, Korea
Jinik Hwang: Advanced Institute of Convergence Technology, Suwon 16229, Korea
Jun-Ho Hyung: Advanced Institute of Convergence Technology, Suwon 16229, Korea
Eun Young Yoon: Advanced Institute of Convergence Technology, Suwon 16229, Korea

Sustainability, 2020, vol. 12, issue 14, 1-14

Abstract: The temporal and spatial distribution of the toxic epiphytic dinoflagellate Ostreopsis cf. ovata was investigated off the Jeju coastal waters, Korea, from July 2016 to January 2019. The results showed that the presence of Ostreopsis cf. ovata in 184 macroalgae was 79.3%, and it was more frequently attached to red algae and brown algae than to green algae. The abundance of Ostreopsis cf. ovata as determined by quantitative real-time polymerase chain reactions (qPCR) and microscopic analysis was 4–3204 cells g −1 , and the maximum abundance observed in September 2018, when the water temperature was 24.4 °C. The abundance was higher in summer and autumn than in spring and winter. Spatially, high abundance was observed in autumn on the northern coast of Jeju Island and, in summer, in the southern and eastern coastal waters. The water temperature of Jeju coastal waters in winter remained higher than 15 °C, and this species could be overwintering in the Jeju waters. Therefore, further monitoring and research are needed to evaluate the proliferation of Ostreopsis cf. ovata , which contains a novel toxin with unidentified effects on humans.

Keywords: epiphytic dinoflagellate; ostreopsis cf. ovata; abundance; temporal and spatial distribution; Jeju island (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/12/14/5864/pdf (application/pdf)
https://www.mdpi.com/2071-1050/12/14/5864/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:12:y:2020:i:14:p:5864-:d:387553

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().