섬중베짱이(Tettigonia jungi Storozhenko, Kim & Jeon, 2015)는 제주도와 여서도 등의 남부 섬 지역에만 서식하는 종으로 알려져 있다. 본 연구는 야외조사와 형태 동정, 미토콘드리아 COI을 이용한 분자동정을 통해 서울특별시 마포구 상암동 하늘공원에서 섬중베짱이의 서식을 확인하였다. 유입된 섬중베짱이 개체군들은 주변 환경으로 분산되지 못하고 하늘공원에 고립되어 있다. 이 소규모 개체군들은 최소 하늘공원이 조성된 직후인 2003년부터 고립되어 서식해왔으며, 공원을 조성하는 과정에서 제주도산 억새와 함께 유입되어 정착한 것으로 추측된다.

지렁이과 (family Megascolecidae) 왕지렁이속 (genus Amynthas) 그룹을 rDNA ITS 유전자를 이용하여 계통 유연관계를 알아보고자 하였다. 2과 10속에서 26종의 DNA 염기서열을 이용하여 종간 계통적 유연관계를 MP (Maximum Parsimony), NJ (Neighbor Joining), QP (Quartet Puzzling)로 계통도를 작성하였다. 염기서열이 확보된 Megascolecidae (지렁이과)의 국내외

This study was carried out to elucidate the relation between water quality and structure of the aquatic ecosystem in the agriculture reservoir Otae-ji from January to December in 2009. The proportion of forest was 46.98%, which means that non-point sources are major contributor of water pollution in this area. The annual mean COD(Chemical Oxygen Demand) in Otae-ji was 3.6 ㎎ L -1 , indicating, level Ⅱ of environmental standards and the trophic state was mesotrophic. Although total phosporus concentration in the reservoir was high in August due to large inflow of nutrients from outside the reservoir during monsoon season, there was no break out of significant algal bloom in the summer. The seasonal succession of phytoplankton showed that the dinophyta dominated in the the spring, chlorophyta in the summer, chrysophyta and chlorophyta in the autumn and chrysophyta in the winter. In case of zooplankton, rotifers dominated in the most seasons, but cladoceran(Bosmina longirostris) dominated in June and copepod(Nauplii) in August. The macrophyte plants showed diverse species compositon consisted of 3 varieties, 24 species, 23 genera, 15 families and 14 orders. The macroinvertebrates also showed various FFG(Functional Feeding Groups) such as GC(Gathering-Collector), P(Predator), SH(Shedder), FC(Filter-Collector) and PP(Plant-Piercer). Ecosystem stability analysis using aquatic insects was classified as Group Ⅰ, which has high resilience and resistance indices. A total of 14 species of fish was collected but exotic species such as Lepomis macrochirus and Micropterus salmoides were not found in Otae-ji. In conclusion, the preservation of healthy food wed in the reservoir ecosystem is closely related to water quality management as well as effective prevention of algal bloom by helping good material circulation in aquatic ecosystems.