유류 농도에 따른 중형저서동물과 선충류 군집 변동 연구 -Microcosm을 이용한 실험-

Title
유류 농도에 따른 중형저서동물과 선충류 군집 변동 연구 -Microcosm을 이용한 실험-
Author(s)
강태욱; 홍재상; 김동성
KIOST Author(s)
Kim, Dong Sung(김동성)
Publication Year
2015-05-21
Abstract
This objective was accomplished by examining changes in the structure of meiofaunal and nematode assemblages after exposure to different concentrations of total petroleum hydrocarbons (TPH) in microcosms. The average density of total meiofauna in the 0.5%, 1%, 2% and 4% experimental microcosms was higher than the density in the control microcosm. The average density of total meiofauna in the 8%, 15%, and 20% microcosms was lower than the density in the control microcosm. Cluster analysis divided the microcosms into two groups. However, SIMPROF analysis showed no significant difference between the two groups (p > 0.05). A total of 2240 nematodes were recorded. Bolbolaimus spp. (37.1%) were dominant among the nematodes. Cluster analysis results for nematode communities were similar to those for the meiofaunal communities. The total meiofaunal density, nematode density, and number of Bolbolaimus spp. individuals were significantly negatively associated with TPH concentration (Spearman correlation coefficients, p < 0.05). Within the nematode community, epistrate feeders (group 2A: 46%) were the most abundant trophic group. Among the treatment groups, the abundance of group 2A increased in 0.5% and 1% microcosms and decreased in 2%, 4%, 8%, 15%, and 20% microcosms.una in the 0.5%, 1%, 2% and 4% experimental microcosms was higher than the density in the control microcosm. The average density of total meiofauna in the 8%, 15%, and 20% microcosms was lower than the density in the control microcosm. Cluster analysis divided the microcosms into two groups. However, SIMPROF analysis showed no significant difference between the two groups (p > 0.05). A total of 2240 nematodes were recorded. Bolbolaimus spp. (37.1%) were dominant among the nematodes. Cluster analysis results for nematode communities were similar to those for the meiofaunal communities. The total meiofaunal density, nematode density, and number of Bolbolaimus spp. individuals were significantly negatively associated with TPH concentration (Spearman correlation coefficients, p < 0.05). Within the nematode community, epistrate feeders (group 2A: 46%) were the most abundant trophic group. Among the treatment groups, the abundance of group 2A increased in 0.5% and 1% microcosms and decreased in 2%, 4%, 8%, 15%, and 20% microcosms.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/40897
Bibliographic Citation
2015 한국해양과학기술협의회 공동학술대회, pp.134, 2015
Publisher
한국해양과학기술협의회
Type
Conference
Language
Korean
Publisher
한국해양과학기술협의회
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