Seasonal Variations in the Community Structures of Macrobenthic Fauna and their Health Status in an Estuarine Bay, Gwangyang Bay in Korea SCIE SCOPUS KCI

Cited 2 time in WEB OF SCIENCE Cited 2 time in Scopus
Title
Seasonal Variations in the Community Structures of Macrobenthic Fauna and their Health Status in an Estuarine Bay, Gwangyang Bay in Korea
Author(s)
Seo, Jin-Young; An, Soon-Mo; Lim, Dhong-il; Choi, Jin-Woo
KIOST Author(s)
Seo, Jin Young(서진영)Lim, Dhong Il(임동일)
Publication Year
2017-09
Abstract
Macrobenthic fauna in an estuarine Gwangyang Bay, southern Korean coast, were investigated to uncover recent variations in their community structures. In the study area, macrobenthic faunal communities were mainly composed of polychaete worms which were the most abundant faunal group with the highest values in species number and density, while mollusks accounted for the highest proportion in total biomass. There was no clear seasonal difference in species richness during the two year period of the investigation, but the mean density and biomass increased every spring and summer due to the mass recruitment of Theora fragilis. The Shannon's diversity index (H') was more than 2.0 during most sampling seasons and did not show any significant seasonal difference except for the data in August, 2011 when azoic conditions occurred. The community structures of macrobenthos in Gwangyang Bay did not show any remarkable change in the dominance of the two top dominant species, Scoletoma longifolia and Heteromastus filiformis, which abundantly occurred in all seasons, except for the abundance peaks associated with high occurrence of T. fragilis and Paraprionospio cordifolia, especially in spring and summer and in autumn, respectively. These fauna changes reflected the changes in the macrobenthic community health status in Gwangyang Bay, where stable conditions and a healthy status prevailed in winter, but a slightly disturbed status prevailed from spring to autumn.
ISSN
1738-5261
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/1168
DOI
10.1007/s12601-017-0038-z
Bibliographic Citation
OCEAN SCIENCE JOURNAL, v.52, no.3, pp.367 - 385, 2017
Publisher
KOREA OCEAN RESEARCH DEVELOPMENT INST
Subject
BIODIVERSITY; ENVIRONMENT; HYPOXIA
Keywords
macrozoobenthos; community structure; health status; seasonal change; Gwangyang Bay; estuarine bay; South Korea
Type
Article
Language
English
Document Type
Article
Publisher
KOREA OCEAN RESEARCH DEVELOPMENT INST
Related Researcher
Research Interests

Marine Geochemistry,Paleoceanography,Marine Pollution,해양지화학,고해양학,해양오염학

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