https://repository.kopri.re.kr/handle/201206/11555 2026-04-18T13:46:41Z https://repository.kopri.re.kr/handle/201206/12828 Title: The Photo Book of Benthic Animals around the Antarctic King Sejong and Jang Bogo Stations Authors: Kang, Seunghyun Abstract: 극지 생물의 다양성을 한눈에 보기 쉽도록 출판한 사진집 2020-12-01T00:00:00Z https://repository.kopri.re.kr/handle/201206/11884 Title: A marine carbon monoxide (CO) model with a new parameterization of microbial oxidation Authors: Kwon, Young Shin; Kang, Hyoun-Woo; Polimene, Luca; Rhee, Tae Siek Abstract: Traditionally, marine carbon monoxide (CO) models assume that the microbial oxidation of CO is only dependent on the concentration of CO in the water column. However, CO oxidation rates in the ocean have been reported to vary up to two orders of magnitude both spatially and temporally. Here, we developed a new model assuming that CO microbial oxidation is dependent on bacterial carbon biomass other than CO concentration. In addition to microbial oxidation, the model also describes CO photochemical production, vertical mixing, and air-sea gas exchange. The new CO model has been embedded in the European Regional Seas Ecosystem Model (ERSEM) and coupled with the General Ocean Turbulence Model (GOTM). The CO-GOTM-ERSEM model was implemented at the Bermuda Atlantic Time Series (BATS) station to simulate CO concentrations observed in March 1993 by Kettle (1994). The proposed second-order function describing CO microbial oxidation introduces a new parameter, the bacteria biomass specific oxidation rate, which was estimated to be 5.7 +/- 0.2 (mu g C m(-3))(-1) h(-1). Statistical metrics indicates that the new CO model performs better than a previously published model with a first-order decay function to describe microbial oxidation, acknowledging the dependence of microbial oxidation on bacterial abundance is realistic. A long-term (1992-1994) simulation carried out with CO-GOTM-ERSEM reproduced the spatial and seasonal variability of CO reported in the literature. Our model provides a realistic description of the CO dynamics and is potentially usable in different environmental contexts worldwide. 2020-09-01T00:00:00Z https://repository.kopri.re.kr/handle/201206/12623 Title: A case study of remote investigation using robotics on the Antarctic Sea Ice and glacier underwater ecological environment Authors: Lee, Pan-Mook; Park, Jin-Yeong; Kim, Sanghee; Ko, Young Wook Abstract: 본 논문은 남극 장보고과학기지 인근 연안 수심 20m 수중의 생태환경조사 사례와 향후 수중로봇을 활용한 원격조사에 요구되는 사항을 고찰하였다. 남극 빙저 수중생태환경 조사는 극지연구소 극지생명공학연구본부가 주관하고 뉴질랜드 와이카토대학이 공동으로 수행하였으며, (주)인더씨 소속의 연구진이 수중 영상촬영, 장기모니터링 장비 설치 및 ROV를 이용한 수중 관측을 수행하였다. 다이버에 의한 수중작업이 가능한 수심은 대략 40m 이내이므로, 이 보다 깊은 수심의 극지 빙저 수중생태환경 조사 또는 남극 빙붕저 약 1,000m 수심의 해저면 수중생태환경 조사는 수중로봇을 이용하는 것이 필수이다. 본 논문은 기존의 다이버에 의한 남극 연안 빙저 생태환경 관측 장비와 운용 현황을 파악하고, 수중로봇을 활용하여 원격조사할 경우에 극지생명과학 분야에서 요구하는 빙저탐사 방법 및 절차, 극지 육상/수중 환경조건, 취득 영상의 선명도 및 위치정밀도 등을 검토하였다. 또한 본 논문은 기존 상용 수중로봇의 극지 활용 현황을 분석하여 보다 효율적으로 운용할 수 있는 방안과 이들의 한계를 극복할 수 있는 방안을 검토하였다. 본 논문의 검토 결과는 선박해양플랜트연구소가 연구개발중인 극지 빙저탐사 수중로봇의 설계에 반영될 예정이다. 2020-01-01T00:00:00Z https://repository.kopri.re.kr/handle/201206/12383 Title: Multiple application potnetial of Antarctic Micractinium KSF0031 Authors: Kim, Sanghee; Shin, Seung Chul Abstract: Antarctic microalgae have several advantages. Their evolutionary adaptation to a wide range of habitats and extreme environments has allowed them to have an abundance of biological and genetic diversity, as well as to produce a variety of bioactive molecule. We have been conducting research to apply Antarctic microalgae from basic to applied research for multiple purposes. We here introduce Antarctic freshwater microalga KSF0031, one of new species of the genus Micractinium collected on the snow surface on the South Shetland Islands, Antarctica. Based on the morphological and molecular characteristics, it was named Micractinium variabile sp. Nov. KSF0031 (hereafter referred to as KSF0031). We analyzed the transcriptome of KSF0031 and used nanopore sequencing to produce 4,617,230,585 bp and an average read length 4,957bp. The contig number was 103 and N50 contig size is 1.9Mbase. We are especially analyzing unsaturated fatty acid-related genes and gene coding low-temperature active enzyme proteins. Also, we are investigating the chemical composition and the biological function to reveal the antioxidant, anti-inflammatory, and anticancer potentials of Antarctic microalga KSF0031. 2020-01-01T00:00:00Z