생물검정실험을 통한 동계 진해만 식물플랑크톤의 군집 변동 특성 파악

현봉길,신경순,김동선,김영옥,주혜미,백승호,Hyun, Bong-Gil,Shin, Kyoung-Soon,Kim, Dong-Sun,Kim, Young-Ok,Joo, Hae-Mi,Baek, Seung-Ho 한국해양학회 2011 바다 Vol.16 No.1

The distributions of phytoplankton assemblages and environmental factors in Jinhae Bay and their relationships were investigated to estimate the potential limiting nutrient for phytoplankton growth and community structure. In situ algal bioassay experiments were also conducted to assess the species-specific characteristics in phytoplankton responses under different nutrient conditions (control, N(+) and P(+) treatment). During the study periods, bacillariophyceae and cryptophyceae occupied more than 90% of total phytoplankton assemblages. Phytoplankton standing crops in the inner part of Masan Bay were higher than that of Jinhae Bay. The DIN:DIP ratio, pH and transparency showed the significant positive correlation with phytoplankton biomass. According to cluster and multidimensiolnal scaling (MDS) analysis based on phytoplankton community data from each station, the bay was divided into three groups. The first group included stations from the south-western part of Jinhae bay where cryptophyta species were dominated. The second group was distinguished from inner stations in Masan Bay. These stations showed low transpancy and high DIN:DIP ratio. The other cluster included the stations from the eastern part and central part of Jinhae Bay, which was characterized by the high DSi:DIP ratio and dominant of diatom species. Phosphorous (P) was limited in Masan Bay due to significantly increases in the phytoplankton abundances. Based on stoichiometric limitation and algal bio-assay in Jinhae Bay, nitrogen (N) was a major limiting factor for phytoplankton production. However, silicate (Si) was not considered as limiting factor, since Si/DIN and Si/P ratio and absolute concentration of nutrient did not create any potential stoichiometric limitation in the bay. This implies that high Si availability in winter season contributes favorably to the maintenances of diatom species.

1993년 4월말 황해 남부 해역의 질소 신생산(新生産)과 재생산(再生産)

양성렬,신경순,양동범,YANG, SUNG RYULL,SHIN, KYOUNG SOON,YANG, DONG-BEOM The Korean Society of Oceanography 1994 韓國海洋學會誌 Vol.29 No.3

Nitrogenous new production and regenerated production were measured in the southern part of the Yellow Sea (Hwanghae) using a stable isotope /SUP 15/N nitrate and ammonia between April 25∼30, 1993. Nitrogen production varied between 155 and 688 mg N m/SUP -2/ d/SUP -1/, which belongs to meso to eutrophic area values. This is equivalent to 881∼3909 mg C m/SUP -2/ d/SUP -1/, assuming the Redfield ratio for C:N of 5.7:1 (by weight). the f0ratio which is the fraction of new production from primary production, varied between 0.12 and 0.26, indicating that 74 to 88% of primary production was supported by the regeneration of nutrients within the euphoric zone. This low f0ratio is the characteristics of the oligo- to mesotrophic area. Contrary to the expected, the ambient nutrient concentration was not an important factor for controlling productivity in this area during the study period. The difference in productivity among stations was mainly due to the variations in phytoplankton biomass in different water masses.

생태학적 모델을 이용한 유류유출 사고에 의한 자연 수산자원 피해의 추정

유신재,신경순,YOO Sin jae,SHIN Kyoung Soon 한국수산과학회 1996 한국수산과학회지 Vol.29 No.2

Damage assessment based on in situ surveys for oil spills in marine environment is limited by fundamental difficulties as well as tremendous expenses. Except for intertidal zones, the damage is not preserved well. Also such surveys are usually confined to adult organisms. To overcome these limitations a computer model, NRDAM/CME, was developed in the case of USA (Reed et al., 1989), where an acute toxicity data base was used to assess indirect damages through food webs and loss due to recruitment as well as adult losses. In the present study damage assessment of natural biological resources for hypothetical oil spills is attempted using a computer model for hypothetical spills of Bunker C and heavy crude oil. In the model, the logical structure of NRDAM/CME was adopted, and biomass and productivity database were compiled for the Korean waters. The results showed that the damage increased in a nonlinear fashion as the spill amount increased. The magnitude of the damage depended upon the chemical properties of oil viscosity and solubility in particular, which implies that usage of oil dispersant might increase the damage by dispersing oil. The results also indicate that long term damage due to recruitment loss could be greater than short term damage.

부산과 대산항에서 선박평형수에 유입된 식물플랑크톤의 종조성과 재성장능력

백승호,장민철,신경순,Baek, Seung-Ho,Jang, Min-Chul,Shin, Kyoung-Soon 한국해양학회 2011 바다 Vol.16 No.2

The aim of this study is to assess the importance of ballast water discharge as a vector for the introduction of exotic species into Pusan and Daesan Ports, Korea. We also examined to understand the impacts of environmental factors on the survival success of introduced species by ship's ballast water in laboratory experiments. Seven ship's ballast water originated from the coastal water of China (Taicang, Ningbo and Jinshan), Japan (Tokuyama, Moji and Akita), and Singapore. According to PCA (principal components analysis) analysis, environmental factor in the each ballast and shipside waters were different by bioregion. Based on cluster analysis, the phytoplankton community structures were distinguished for ballast water origin. Most of the major taxonomic groups were diatoms and, the others were dinoflagellate, silcoflagellate and several fresh-waters species. In particular, species number and standing crops of phytoplankton in the ballast tanks decreased with the increasing age ofballast water(r = -0.35 for standing crop; r = -0.63 for species number). In the laboratory study, although phytoplankton in ballast water treatment did not survive even in optimal temperature, the in vivo fluorescence of phytoplankton viability increased under the nutrient typical of shipside water and F/2 medium at $15^{\circ}C$ and $20^{\circ}C$. The diatoms species such as Skeletonema costatum and Thalassiosira pseudonana in ballast water were successfully regrown. On the salinity gradient experiments for Shui Shan (2) vessel, several freshwater species, brackish and marine species were successfully adapted. Of these, S.costatum was able to tolerate a wide range of salinities (10 to 30 psu) and its species-specific viability was suitable for colonization.

동물플랑크톤에 대한 지속성 유기오염물질 PAHs와 TBT의 독성 및 생존능력에 미치는 영향

장풍국 ( Poong Guk Jang ),신경순 ( Kyoung Soon Shin ),장민철 ( Min Chul Jang ),박동원 ( Dong Won Park ),장만 ( Man Chang ) 한국환경생물학회 2004 환경생물 : 환경생물학회지 Vol.22 No.-

밸러스트수 관리장치 개발 및 승인을 위한 IMO 지침서 고찰

김은찬(Eun-Chan Kim),신경순(Kyoung-Soon Shin),장승안(Seung-An Jang),최종열(Jong-Yuel Choi) 한국해양환경·에너지학회 2004 한국해양환경·에너지학회 학술대회논문집 Vol.2004 No.-

The international convention to prevent the potentially devastating effects of the spread of harmful aquatic organisms carried by ships' ballast water has been adopted by the International Maritime Organization (IMO) at February 2004. The Convention will require all ships will have to carry out ballast water management procedures to a given standard. To meet given standard. almost of the ships must be install the ballast water management system. Following to the Convention, thirteen guidelines will be developed by IMO until to 2006. First of all, the guidelines for ballast water management systems-type approval (GS) and active substances(G9) - were developed by 52nd Marine Environment Protection Committee (MEPC) at October 2004. The recommendation for the conduct of the review of treatment technologies was developed also by 52nd MEPC. This paper reviews these two guidelines and one recommendation for ballast water management systems and instructs methodologies for development and approval procedures for ballast water management systems in our country.

2006~2010년 기간 동안 대한해협 서수도에서 관측된 해수 물성의 변동

민홍식,박재훈,최아라,박영규,신경순,장풍국,Min, Hong-Sik,Park, Jae-Hun,Choi, A-Ra,Park, Young-Gyu,Shin, Kyoung-Soon,Jang, Pung-Guk 한국해양과학기술원 2011 Ocean and Polar Research Vol.33 No.suppl3

Seasonal to inter-annual variations of water properties in the western channel of the Korea Strait are investigated using quasi-monthly hydrographic observations collected during 2006-2010. Weak vertical temperature and salinity gradients are observed during the winter months and these remain until May. At the upper layer, temperature increases from March and reaches a maximum in August, while salinity decreases during the same period. Near-bottom water shows low temperatures during late winter and fall with a minimum peak in September. Korea Strait Bottom Cold Water produces thick layers (>20 m) in 2006 and 2010, while it is observed very near the bottom with relatively high temperature in 2008 and 2009.

식물플랑크톤의 성장과 광합성에 대한 benzo[a]pyrene의 영향

김선주 ( Sun Ju Kim ),신경순 ( Kyoung Soon Shin ),문창호 ( Chang Ho Moon ),박동원 ( Dong Won Park ),장만 ( Man Chang ) 한국환경생물학회 2004 환경생물 : 환경생물학회지 Vol.22 No.-

적조원인종인 Prorocentrum minimum 의 온도에 따른 생화학적 조성의 변화

장만(Man Chang),조진하(Jin Ha Cho),신경순(Kyoung Soon Shin),이우성(Woo Sung Lee),이택견(Taek Kyun Lee) 한국환경생물학회 1998 환경생물 : 환경생물학회지 Vol.16 No.4

Effects of various temperature on the biochemical composition of Prorocentrum minimum, a dinoflagellate causing red tide, were examined. Cultures were grown under 14:10h light:dark (L:D) regime at three temperatures ranging from 15 to 30℃ and harvested at late-logarithmic phase for analysis of biochemical composition. Growth pattern of cells grown at 25℃ was similar to the cells grown at 30℃. The levels of protein, carbohydrate and lipid increased as temperature declined. In contrast to the cultures grown at 25 and 30℃, the MGDG/DGDG ratio and activity of photosystem Ⅱ significantly decreased in the cultures grown at 15℃. The levels of phosphatidylserine and phosphatidic acid were high in the culture grown at 15℃. Our data shows that optimal temperature for the growth of P. minium is 25℃ and low temperature(15℃) affected the cellular activity and photosynthesis of the cells.

적조원인종인 Prorocentrum minimum 의 광도에 따른 생화학적 조성의 변화

조진하(Jin Ha Cho),이택견(Taek Kyun Lee),신경순(Kyoung Soon Shin),이우성(Woo Sung Lee),장만(Man Chang) 한국환경생물학회 1998 환경생물 : 환경생물학회지 Vol.16 No.4

Effects of light intensity on the biochemical composition of Prorocentrum minimum, a dinoflagellate causing red tide, were examined. Cultures were grown under a 14:10h light: dark(L:D) regime at three light intensity ranging from 15 to 120μ㏖·m^-2·s^-1 and harvested at late-logarithmic phase for analysis of biochemical composition. Growth pattern was similar to over the 50μ㏖·m^-2·s^-1. The highest levels of carbohydrate, protein and lipid were present in the cells from cultures grown at 120, 50 and 15μ㏖·m^-2·s^-1, respectively. The protein/carbohydrate ratio and MGDG/DGDG ratio was highest in cells from culture grown at 50μ㏖·m^-2·s^-1. The activity of photosystem Ⅱ of the culture grown 120μ㏖·m^-2·s^-1 was lower than others. Therefore the cells grown 50μ㏖·m^-2·s^-1 represented highest cellular activity and photosynthetic activity.