Alexandrium pacificum (Group IV) is causative species for past paralytic shellfish poisoning outbreaks in Jinhae-

Title
Alexandrium pacificum (Group IV) is causative species for past paralytic shellfish poisoning outbreaks in Jinhae-
Author(s)
신현호; LIZHUN
KIOST Author(s)
Shin, Hyeon Ho(신현호)
Publication Year
2018-10-25
Abstract
Paralytic shellfish poisoning (PSP) caused the deaths of four people in coastal area of Korea, mainly Jinhae-Masan Bay
and adjacent areas, in April 1986 and in 1996. The PSP outbreaks were caused by the consumption of mussels, Mytilus edulis. The
organism that caused PSP was identified, from morphological data only, as Alexandrium tamarense which is recently renamed as A.
catenella, however recent studies have shown that the morphological diagnostic characteristics used to identify Alexandrium species
have uncertainties and molecular tools and other criteria should be considered as well. The organism that caused past PSP outbreaks
and incidents in Korea therefore need to be carefully reconsidered. The aim of this study was to re-evaluate the species really
responsible for past outbreaks of PSP in Jinhae-Masan Bay, Korea. The temporal production and fluxes of the resting cysts of
Alexandrium species were investigated for one year (from March 2011 to February 2012) using a sediment trap, and the morphology
and phylogeny of vegetative cells germinated from the resting cysts were analysed. The production of Alexandrium species peaked in
August and November, when temporal discrepancies were found in the water temperature (22.4 and 22.7 °C in August, 19.1 and
19.6 °C in November) and salinity (29.5 and 26.1 psu in August, 30.5 and 31.8 psu in November). The morphological data revealed
that Alexandrium species is. The
organism that caused PSP was identified, from morphological data only, as Alexandrium tamarense which is recently renamed as A.
catenella, however recent studies have shown that the morphological diagnostic characteristics used to identify Alexandrium species
have uncertainties and molecular tools and other criteria should be considered as well. The organism that caused past PSP outbreaks
and incidents in Korea therefore need to be carefully reconsidered. The aim of this study was to re-evaluate the species really
responsible for past outbreaks of PSP in Jinhae-Masan Bay, Korea. The temporal production and fluxes of the resting cysts of
Alexandrium species were investigated for one year (from March 2011 to February 2012) using a sediment trap, and the morphology
and phylogeny of vegetative cells germinated from the resting cysts were analysed. The production of Alexandrium species peaked in
August and November, when temporal discrepancies were found in the water temperature (22.4 and 22.7 °C in August, 19.1 and
19.6 °C in November) and salinity (29.5 and 26.1 psu in August, 30.5 and 31.8 psu in November). The morphological data revealed
that Alexandrium species
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/23005
Bibliographic Citation
18th International Conference on Harmful Algae, pp.373, 2018
Publisher
International Society for the Study of Harmful Algae
Type
Conference
Language
English
Publisher
International Society for the Study of Harmful Algae
Related Researcher
Research Interests

Marine bioresource,Marine phytoplankton diversity / ecology,Marine micropaleontology,해양생물자원,해양식물플랑크톤 다양성/생태학,해양미고생물학

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