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http://dx.doi.org/10.7850/jkso.2016.21.3.112

Community Structures of Macrozoobenthos in the Subtidal Area of the Nakdong River estuary, Korea  

SEO, JIN-YOUNG (South Sea Research Center, KIOST)
KIM, JEONG-HYUN (South Sea Research Center, KIOST)
CHOI, JIN-WOO (South Sea Research Center, KIOST)
Publication Information
The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY / v.21, no.3, 2016 , pp. 112-124 More about this Journal
Abstract
In order to see the spatio-temporal distribution patterns of macrobenthic fauna in subtidal areas of Nakdong River estuary, benthic fauna samples were collected seasonally at 8 sites in subtidal areas of Nakdong River estuary from February, 2013 to November, 2015. Sandy sediment facies was found in the southern part of the barrier islands in Nakdong River estuary while muddy sediment facies occupied at sites in offshore areas. The bottom salinity of the study area was measured greater than 30 psu during the study period. The mean species richness and density were estimated as 266 species and $859ind\;m^{-2}$, respectively. Polychaete worms were the most abundant fauna group, and four polychaete species such as Goniada maculata, Sternaspis chinensis, Magelona japonica, and Heteromastus filiformis occurred as dominant species in this study area. Pseudopolydora kempi known as an opportunistic species occurred dominantly only in August, 2013. From the multivariate analyses, the macrobenthic fauna in the subtidal area of the Nakdong River estuary could be divided into 2 assemblages that each occupied sites near barrier islands and offshore areas by sediment facies.
Keywords
Macrozoobenthos; Community structure; Nakdong River estuary; South Korea;
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