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저서환경에서 이산화탄소 노출에 따른 국내산 해산무척추동물요각류(Tisbe sp.)와 단각류(Monocorophium acherusicum)의 만성영향
문성대 ( Seong Dae Moon ),최태섭 ( Tae Seob Choi ),성찬경 ( Chan Gyoung Sung ),이정석 ( Jung Suk Lee ),박영규 ( Young Gyu Park ),강성길 ( Seong Gil Kang ) 한국환경과학회 2013 한국환경과학회지 Vol.22 No.3
Chronic effects such as reproduction and population dynamics with elevated CO2 concentration were evaluated using two Representative marine benthic species, copepod(Tisbe sp.) and amphipod(Monocorophium acherusicum) adopting long term exposure. Juvenile copepod and amphipod individuals were cultivated in the seawater equilibrated with control air (0.395mmol CO2/air mol) and high CO2 air having 0.998, to 3.03, 10.3 and 30.1 mmol CO2/air mol during 20 and 46 days, respectively. After the exposure period, the number of benthic invertebrate was counted with separate larval and juvenile stage such as naupliar, copepodid and adult for copepod, or neonate and adult for amphipod, respectively. The individual number of bothtese species at each life stage was significantly decreased in seawater with 10.3 mmol CO2/air mol or higher. Recently, the technology of marine CO2 sequestration has been developed for the reduction of CO2 emission, which may cause climate change. However, under various scenarios of CO2 leaks during the injection process or sequestrated CO2 in marine geological structure. The potential risk to organism including various invertebrates can be expected to exposure. So the results of this study suggested that the detailed consideration on the adverse effect with marine ecosystem can be prerequisite for marine CO2 sequestration projects.
구리, 카드뮴, 펜벤다졸, 설파티아졸이 국내산 풍년새우 생존에 미치는 영향
문성대(Seong-Dae Moon),조창현(Chang-Hyun Cho),곽인실(Inn-Sil Kwak),이창훈(Chang-Hoon Lee) 환경독성보건학회 2009 환경독성보건학회지 Vol.24 No.4
The short term (24-hr) and long term (21 days) effects of copper, cadmium, fenbendazole and sulfathiazole on the survival of the Korean fairy shrimp Branchinella kugenumaensis were evaluated. The 24-hr median lethal concentrations (LC<SUB>50</SUB>) of copper, cadmium, fenbendazole, and sulfathiazole were 39, 512, 182, and 31,818 ㎍/L, respectively. The toxicity of copper is highest among 4 chemicals used in this study, while sulfathazole the lowest. After the long term (21 days) exposure experiment, the LC<SUB>50</SUB> copper, cadmium, fenbendazole, and sulfathiazole were 1.12, 2.1, 0.1, 6.6 ㎍/L, respectively. The long term effects of antibiotics were highly enhanced while the short-term effects were not strong. The sensitivities of B. kugenumaensis to copper and cadmium were higher than or comparable to those of other freshwater branchiopods (Streptocephalus spp., Thamnocephalus sp.), and far higher than the marine species (Artemia sp.). There were significant effects on the survival of B. kugenumaensis after long term exposure to relatively lower concentrations of copper, cadmium, fenbendazole and sulfathiazole. Therefore, B. kugenumaensis seems quite a good candidate species for the ecotoxicological assessments of freshwater environments.
부유토사가 담수 어류 3종(붕어, 잉어, 송사리)의 초기 생활사에 미치는 영향
문성대 ( Seong Dae Moon ),강신길 ( Sin Kil Kang ),이창훈 ( Chang Hoon Lee ),성찬경 ( Chan Gyoung Sung ),안광국 ( Kwang Guk An ),최태섭 ( Tae Seob Choi ) 한국하천호수학회 2014 생태와 환경 Vol.47 No.2
To assess the adverse effects of suspended solids on fishes, the hatching rate of embryo, and survival and growth of larvae were measured with common fish species of river such as crusian carp (Carassius auratus), common carp (Cyprinus carpio) and medaka (Oryzias latipes). Bioassay on hatching rate of embryo was conducted with a range of turbidity as 10 levels from 0.2 to 8,080 NTU. Another bioassay on 4-day larval survival and 21-day larval growth were also conducted with a range of turbidity as 8 levels from 0.1 to 8,260 NTU, and 6 levels from 0.7 to 2,030 NTU, respectively. The hatching rate of C. auratus was not significantly different from that of control at turbidity below 4,040 NTU, whereas it decreased when turbidity was 8,080 NTU (p.0.05). The hatching rate of C. carpio was not affected by concentration of suspended solids. For O. latipes, the hatching rate significantly decreased from 254 NTU (p.0.001) and it was zero when turbidity was 8,080 NTU. The 4-day survival of larvae of all 3 species was not affected by turbidity, while the larval growth of all 3 species was significantly affected. The turbidity effect on the growth of C. auratus and C. carpio was observed from 7 days after the exposure at turbidity level of 145, 143 NTU, respectively. The turbidity effect on the growth of O. latipes was observed from 14 days after the exposure at turbidity level of 254 NTU. The results of this study will provide the basic information for the derivation of water quality criteria on suspended solids for the protection of aquatic ecosystem and the quantitative ecological risk assessment of freshwater environment.