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윤성민,김춘철,서원일,황선영,이성훈,한경호,이우범 國立麗水大學校 環境問題硏究所 2004 環境硏究論文集 Vol.6 No.-
To detemine seasonal fluctuations in abundance and speices composition, polychaete samples were collected by Van Veen grab form March to November 2003 in Kangjin Bay. A total of 25,119.3 ind./㎡ polycaete were sampled and identified into 48 species. 25 families and 10 orders. Of the 10 orders. Phllodocida, Spionida, Eunicida and Sabellida accounted for approximately 79.9% of the polychaete fauna in this area. Phyllodocida, Nereidae, Nephtyidae ans Spionidae were dominant representing every moment 4 species. Of 48 species identified Neanthes japonica, Prionospio pinnate, Cirratulus cirratus and Palola siciliensis for 54.0% individuals collected. Season succession of dominant species was evident in study area: Neanthes japonica, Prionospio pinnata. Cirratulus cirratus. Nephtys oligobranchia in March, Neanthes japonica, Lumbrineris japonica. Cirratulus cirratus, Prionospio pinnata in May, Ncanthes japonica, Cirratulus cirratus, Lumbrineris nippnica. Lumbrineris japonica in August and Neanthes japonica, Prionospio pinnata, Laonice cirrata, Palola siciliensis in November, respectively. The diversity index was the highest value in March(H'=3.0059) and the lowest value in May(H'=2.7305). The eveness index was the highest in August(J=0.9184) and lowest in May(J=0.8524). The dominance index was the highest in May(D=0.3843) and the lowest in March(D=0.2275).
채종철,윤형선,서성규 國立麗水大學校 環境問題硏究所 2004 環境硏究論文集 Vol.6 No.-
The objective method, combined sensory and instrumental analysis, was desired to evaluation of intensity as well as odor active compounds because malodor is sensory pollution. The Seonso area was classified into seaside, residential and reference area. Target compounds were sulfur compounds such as hydrogen sulfide(H₂S). methyl mercaptan(CH₃SH), dimethyl sulfide((CH₃)₂S)and dimethyl disulfide((CH₃)₂S₂). The odor intensity at Seonso area in Yeosu city was set in order as follows : reference area < residential area < seaside area. There was a difference of the odor intensity between the summer and the winter at seaside area. Most of the odor intensity identified at seaside area(S-3) was exceeded the Korean odor regulations(the level 3.0). The concentrations of dimethyl sulfide, dimethyl disulfide were not significantly changed with sampling time and site. However, the concentration of hydrogen sulfide and methyl mercaptan at S-3 site were higher than other sites and these concentrations of the summer were higher than that of the winter. The concentrations of hydrogen sulfide at the sediments of R-1, S-1, S-2, S-3 sites by the Gastec detection tube were 0.16, 1.26, 0.43 and 2.20㎎/g-dry respectively. The order of major odor active compounds related to Seonso area were dimethyl disulfide < dimethyl sulfide < methyl mercaptan < hydrogen sulfide.