Dinoflagellate Cysts in Coastal Sediments as Indicators of Eutrophication: A Case of Gwangyang Bay, South Sea of Korea SCIE SCOPUS

Cited 21 time in WEB OF SCIENCE Cited 24 time in Scopus
Title
Dinoflagellate Cysts in Coastal Sediments as Indicators of Eutrophication: A Case of Gwangyang Bay, South Sea of Korea
Author(s)
Kim, So-Young; Moon, Chang-Ho; Cho, Hyun-Jin; Lim, Dhong-Il
KIOST Author(s)
Lim, Dhong Il(임동일)
Alternative Author(s)
김소영; 임동일
Publication Year
2009-11
Abstract
Diatom densities in the surface water and dinoflagellate cysts in bottom sediments of Gwangyang Bay were studied to determine changes in the phytoplankton community structure in response to anthropogenic eutrophication and to assess the use of dinoflagellate cysts as indicators of coastal eutrophication. Our results show that, in nutrient-enriched environments, diatoms are particularly benefited from the nutrients supplied and, as a consequence, heterotrophic dinoflagellates that feed on the diatoms can be more abundant than autotrophic dinoflagellates. In short-core sediment records, a marked shift in autotrophic-heterotrophic dinoflagellate cyst compositions occurred at a depth of approximately 9-10 cm corresponding to the timing of the 1970s industrialization around Gwangyang Bay. This tentatively indicates that diatom and dinoflagellate communities here have undergone a considerable change mainly due to increased nutrient loadings from both domestic sewage effluent and industrial pollution. Our study suggests a possible potential use of dinoflagellate cysts in providing retrospective information on the long-term effects of coastal eutrophication.
ISSN
1559-2723
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/4241
DOI
10.1007/s12237-009-9212-6
Bibliographic Citation
ESTUARIES AND COASTS, v.32, no.6, pp.1225 - 1233, 2009
Publisher
SPRINGER
Subject
CHESAPEAKE BAY; SURFACE SEDIMENTS; GROWTH; PHYTOPLANKTON; PRODUCTIVITY; IRRADIANCE; SILICA
Keywords
Eutrophication; Dinoflagellate cysts; Diatoms; Coastal zone; Gwangyang Bay sediments
Type
Article
Language
English
Document Type
Article
Publisher
SPRINGER
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