Morphological features and distribution of dinoflagellate cysts in surface sediments from East China Sea and Korean coastal areas

Title
Morphological features and distribution of dinoflagellate cysts in surface sediments from East China Sea and Korean coastal areas
Author(s)
강병준; LIZHUN; 한경하; 오석진; 신현호
KIOST Author(s)
Han, Kyong Ha(한경하)Shin, Hyeon Ho(신현호)
Alternative Author(s)
강병준; LIZHUN; 한경하; 신현호
Publication Year
2018-05-24
Abstract
Although the morphological characteristics and distribution of dinoflagellate cysts have been

widely investigated in many coastal areas of the world, the knowledge— base in the East

China Sea and Korean coastal areas remains limited. To investigate the diversity and

distribution of dinoflagellate cysts, surface sediment samples were collected at 27 stations

from the East China Sea and Korean coastal areas in June 2015 and May 2017. Cyst

morphology was examined with light microscopy and scanning electron microscopy. A total

of 21 species belonging to 11 genera dinoflagellate cyst taxa were identified. 5 potentially

harmful species were widely distributed: 3 potenti히ly toxic species (Alexandrium tamarense

complex, Lingulodinium polyedrum and Protoceratium reticulatum) and 2 potentially

bloom— forming species (Scnppsiella trochoidea and Gonyaulax spinifera complex). The

abundances of dinoflagellate cysts ranged from 87 to 993 cysts/g wet weight. Cyst

concentrations in the East china sea were relatively higher than in the Korean coastal

areas. The organic-walled cysts were dominated by Spiniferites spp. ( Gonyaulax spinifera

complex) and Brigantedinium spp. (Protoperidinium spp.), and followed by the

calcareous-walled cysts were dominated by Leonella granifera and 1horacospharera sp.

171 To investigate the diversity and

distribution of dinoflagellate cysts, surface sediment samples were collected at 27 stations

from the East China Sea and Korean coastal areas in June 2015 and May 2017. Cyst

morphology was examined with light microscopy and scanning electron microscopy. A total

of 21 species belonging to 11 genera dinoflagellate cyst taxa were identified. 5 potentially

harmful species were widely distributed: 3 potenti히ly toxic species (Alexandrium tamarense

complex, Lingulodinium polyedrum and Protoceratium reticulatum) and 2 potentially

bloom— forming species (Scnppsiella trochoidea and Gonyaulax spinifera complex). The

abundances of dinoflagellate cysts ranged from 87 to 993 cysts/g wet weight. Cyst

concentrations in the East china sea were relatively higher than in the Korean coastal

areas. The organic-walled cysts were dominated by Spiniferites spp. ( Gonyaulax spinifera

complex) and Brigantedinium spp. (Protoperidinium spp.), and followed by the

calcareous-walled cysts were dominated by Leonella granifera and 1horacospharera sp.

171
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/23304
Bibliographic Citation
한국해양학회, pp.1, 2018
Publisher
한국해양학회
Type
Conference
Language
Korean
Publisher
한국해양학회
Related Researcher
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