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Spatial Distribution of Macrozoobenthos During Spring Season in the Estuarine Sandy Tidal Flat of Masan Bay, Korea  

Seo, Jin-Young (South Sea Research Institute, KORDI)
An, Soon-Mo (Division of Earth Environment System, Pusan National University)
Choi, Jin-Woo (South Sea Research Institute, KORDI)
Publication Information
The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY / v.12, no.3, 2007 , pp. 211-218 More about this Journal
Abstract
In this study, we investigated the spatial distribution of macrozoobenthos in the estuarine sandy flat, the Bongam tidal flat located in Masan Bay during March, 2004. A total 13 species were identified at 12 stations within the tidal flat. The mean density was $20,267\;ind./m^2$, and mean biomass was $228.1g/m^2$. Dominant species in the Bongam tidal flat were all polychaetes: Prionospio japonicus ($11,716\;ind./m^2$, 57.8%) and Polydora ligni ($3,929\;ind./m^2$, 19.4%) of spionoid polychaete, and Neanthes succinea ($3,425\;ind./m^2$, 16.9%) of nereid polychaete. The most dominant species, P. japonicus distributed evenly all stations in the tidal flat. But N. succinea showed high density at the upper area of the tidal flat. Species diversity index (H') was in the range of 0.6 to 1.2 which is relatively low due to the prominent of P. japonicus and few species richness at each station. The study area was divided into two station groups (group A and B) based on the cluster analysis and MDS ordination, and the spatial distribution of macrozoobenthos on the Bongam tidal flat seemed to be in the influence of exposure duration from tidal levels and specific geological topography.
Keywords
Estuarine sandy tidal flat; Macrozoobenthos; Spatial distribution; Masan Bay;
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Times Cited By KSCI : 2  (Citation Analysis)
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