조간대 유류 유출이 중형저서동물에 미치는 반응 연구 실험

Abstract

This study aimed to determine the potential impact of an oil spill on intertidal meiofauna at a clean, sandy beach in Korea. This objective was accomplished by examining changes in the structure of meiofaunal assemblages after a controlled oil spill of different concentrations on the beach. The concentration of TPH in the experimental plots after oil application was expectedly higher for the first 4 d compared to before oil application. The TPH concentrations decreased at a faster rate in the first 4 d, and then progressively after the first 4 d. The sharp decline in meiofaunal density in the experimental plots during the first 4 d after the spill might be attributed to the short-term toxic effects of the oil. This suggestion is supported by a significant negative interaction of the effect of TPH had on meiofaunal density across the study period. The structure of the meiofaunal communities in the experimental plots was similar before and 1 month after oil application. Only, the density of meiofauna sharply decreased immediately after oil application in the experiment plots. Furthermore, the meiofaunal density slowly recovered as time passed.oil spill of different concentrations on the beach. The concentration of TPH in the experimental plots after oil application was expectedly higher for the first 4 d compared to before oil application. The TPH concentrations decreased at a faster rate in the first 4 d, and then progressively after the first 4 d. The sharp decline in meiofaunal density in the experimental plots during the first 4 d after the spill might be attributed to the short-term toxic effects of the oil. This suggestion is supported by a significant negative interaction of the effect of TPH had on meiofaunal density across the study period. The structure of the meiofaunal communities in the experimental plots was similar before and 1 month after oil application. Only, the density of meiofauna sharply decreased immediately after oil application in the experiment plots. Furthermore, the meiofaunal density slowly recovered as time passed.