Resting cysts of potentially harmful dinoflagellates in Korean coastal area

Title
Resting cysts of potentially harmful dinoflagellates in Korean coastal area
Author(s)
LIZHUN; 신현호
KIOST Author(s)
Shin, Hyeon Ho(신현호)
Publication Year
2017-08-14
Abstract
The frequency of harmful algal blooms (HABs), caused
by the cyst-forming dinoflagellates, has been increasing
dramatically since the 1980’s in Korean coastal waters. Although
the distribution of dinoflagellate resting cysts has
been widely investigated in Korean coastal areas, morphological
characteristics of the resting cysts of potentially
harmful dinoflagellates are still unclear. Here, we
provide detailed descriptions of these potentially harmful
dinoflagellates cysts to increase understanding of the
morphological characteristics and biogeographic distribution
of potentially harmful dinoflagellates. Sediment
samples were collected from 51 stations in the southern
coastal area, Korea. Viable resting cysts were isolated and
induced to excysts. Identification was based on morphological
characteristics and molecular phylogenetic positions
of the germinated cells. Nine potentially harmful
dinoflagellate species were identified: seven potentially
toxic species and two potentially bloom-forming species.
The resting cysts of Gymnodinium aureolum, which has
a smooth, thin wall and many pale lipid globules, were
first observed from natural sediments. The presence of
resting cysts of potentially harmful dinoflagellates suggests
that further research attention and efforts in HAB
monitoring and management are required.dely investigated in Korean coastal areas, morphological
characteristics of the resting cysts of potentially
harmful dinoflagellates are still unclear. Here, we
provide detailed descriptions of these potentially harmful
dinoflagellates cysts to increase understanding of the
morphological characteristics and biogeographic distribution
of potentially harmful dinoflagellates. Sediment
samples were collected from 51 stations in the southern
coastal area, Korea. Viable resting cysts were isolated and
induced to excysts. Identification was based on morphological
characteristics and molecular phylogenetic positions
of the germinated cells. Nine potentially harmful
dinoflagellate species were identified: seven potentially
toxic species and two potentially bloom-forming species.
The resting cysts of Gymnodinium aureolum, which has
a smooth, thin wall and many pale lipid globules, were
first observed from natural sediments. The presence of
resting cysts of potentially harmful dinoflagellates suggests
that further research attention and efforts in HAB
monitoring and management are required.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/23880
Bibliographic Citation
Phycologia, pp.117, 2017
Publisher
International Phycological Society
Type
Conference
Language
English
Publisher
International Phycological Society
Related Researcher
Research Interests

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

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